URL https://opencores.org/ocsvn/zipcpu/zipcpu/trunk
Subversion Repositories zipcpu

[/] [zipcpu/] [trunk/] [sw/] [gcc-zippatch.patch] - Blame information for rev 110

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diff -Naur '--exclude=*.swp' gcc-5.3.0-original/config.sub gcc-5.3.0-zip/config.sub
--- gcc-5.3.0-original/config.sub       2015-01-02 04:30:21.000000000 -0500
+++ gcc-5.3.0-zip/config.sub    2016-01-30 12:27:56.023073747 -0500
@@ -316,7 +316,7 @@
        | visium \
        | we32k \
        | x86 | xc16x | xstormy16 | xtensa \
-       | z8k | z80)
+       | z8k | z80 | zip)
                basic_machine=$basic_machine-unknown
                ;;
        c54x)
@@ -1547,6 +1547,9 @@
 # system, and we'll never get to this point.
 
 case $basic_machine in
+       zip-*)
+               os=-elf
+               ;;
        score-*)
                os=-elf
                ;;
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/configure gcc-5.3.0-zip/configure
--- gcc-5.3.0-original/configure        2015-05-03 13:29:57.000000000 -0400
+++ gcc-5.3.0-zip/configure     2016-01-30 16:19:48.264867231 -0500
@@ -3927,6 +3927,8 @@
   vax-*-*)
     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
     ;;
+  zip*)
+    noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb gprof"
 esac
 
 # If we aren't building newlib, then don't build libgloss, since libgloss
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/configure.ac gcc-5.3.0-zip/configure.ac
--- gcc-5.3.0-original/configure.ac     2015-05-03 13:29:57.000000000 -0400
+++ gcc-5.3.0-zip/configure.ac  2016-02-12 10:47:23.847194843 -0500
@@ -1274,6 +1274,10 @@
   vax-*-*)
     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
     ;;
+  zip*)
+    noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb gprof"
+    unsupported_languages="$unsupported_languages fortran java"
+    ;;
 esac
 
 # If we aren't building newlib, then don't build libgloss, since libgloss
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/common/config/zip/zip-common.c gcc-5.3.0-zip/gcc/common/config/zip/zip-common.c
--- gcc-5.3.0-original/gcc/common/config/zip/zip-common.c       1969-12-31 19:00:00.000000000 -0500
+++ gcc-5.3.0-zip/gcc/common/config/zip/zip-common.c    2016-02-14 00:54:31.821055716 -0500
@@ -0,0 +1,52 @@
+////////////////////////////////////////////////////////////////////////////////
+//
+// Filename:   common/config/zip/zip-common.c
+//
+// Project:    Zip CPU backend for the GNU Compiler Collection
+//
+// Purpose:    To eliminate the frame register automatically.
+//
+// Creator:    Dan Gisselquist, Ph.D.
+//             Gisselquist Technology, LLC
+//
+////////////////////////////////////////////////////////////////////////////////
+//
+// Copyright (C) 2016, Gisselquist Technology, LLC
+//
+// This program is free software (firmware): you can redistribute it and/or
+// modify it under the terms of  the GNU General Public License as published
+// by the Free Software Foundation, either version 3 of the License, or (at
+// your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+// for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program.  (It's in the $(ROOT)/doc directory, run make with no
+// target there if the PDF file isn't present.)  If not, see
+// <http://www.gnu.org/licenses/> for a copy.
+//
+// License:    GPL, v3, as defined and found on www.gnu.org,
+//             http://www.gnu.org/licenses/gpl.html
+//
+//
+////////////////////////////////////////////////////////////////////////////////
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
+#include "common/common-target.h"
+#include "common/common-target-def.h"
+
+static const struct default_options zip_option_optimization_table[] =
+  {
+    { OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 },
+    { OPT_LEVELS_NONE, 0, NULL, 0 }
+  };
+
+#undef TARGET_OPTION_OPTIMIZATION_TABLE
+#define        TARGET_OPTION_OPTIMIZATION_TABLE        zip_option_optimization_table
+
+struct gcc_targetm_common      targetm_common = TARGETM_COMMON_INITIALIZER;
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/aarch64/aarch64-linux.h gcc-5.3.0-zip/gcc/config/aarch64/aarch64-linux.h
--- gcc-5.3.0-original/gcc/config/aarch64/aarch64-linux.h       2016-03-08 04:57:02.962902614 -0500
+++ gcc-5.3.0-zip/gcc/config/aarch64/aarch64-linux.h    2015-07-24 12:00:26.000000000 -0400
@@ -21,7 +21,7 @@
 #ifndef GCC_AARCH64_LINUX_H
 #define GCC_AARCH64_LINUX_H
 
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld-linux-aarch64%{mbig-endian:_be}%{mabi=ilp32:_ilp32}.so.1"
+#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-aarch64%{mbig-endian:_be}%{mabi=ilp32:_ilp32}.so.1"
 
 #undef  ASAN_CC1_SPEC
 #define ASAN_CC1_SPEC "%{%:sanitize(address):-funwind-tables}"
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/alpha/linux-elf.h gcc-5.3.0-zip/gcc/config/alpha/linux-elf.h
--- gcc-5.3.0-original/gcc/config/alpha/linux-elf.h     2016-03-08 04:57:02.962902614 -0500
+++ gcc-5.3.0-zip/gcc/config/alpha/linux-elf.h  2015-01-05 07:33:28.000000000 -0500
@@ -23,8 +23,8 @@
 #define EXTRA_SPECS \
 { "elf_dynamic_linker", ELF_DYNAMIC_LINKER },
 
-#define GLIBC_DYNAMIC_LINKER   "/tools/lib/ld-linux.so.2"
-#define UCLIBC_DYNAMIC_LINKER "/tools/lib/ld-uClibc.so.0"
+#define GLIBC_DYNAMIC_LINKER   "/lib/ld-linux.so.2"
+#define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
 #if DEFAULT_LIBC == LIBC_UCLIBC
 #define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}"
 #elif DEFAULT_LIBC == LIBC_GLIBC
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/arm/linux-eabi.h gcc-5.3.0-zip/gcc/config/arm/linux-eabi.h
--- gcc-5.3.0-original/gcc/config/arm/linux-eabi.h      2016-03-08 04:57:02.962902614 -0500
+++ gcc-5.3.0-zip/gcc/config/arm/linux-eabi.h   2015-01-05 07:33:28.000000000 -0500
@@ -68,8 +68,8 @@
    GLIBC_DYNAMIC_LINKER_DEFAULT and TARGET_DEFAULT_FLOAT_ABI.  */
 
 #undef  GLIBC_DYNAMIC_LINKER
-#define GLIBC_DYNAMIC_LINKER_SOFT_FLOAT "/tools/lib/ld-linux.so.3"
-#define GLIBC_DYNAMIC_LINKER_HARD_FLOAT "/tools/lib/ld-linux-armhf.so.3"
+#define GLIBC_DYNAMIC_LINKER_SOFT_FLOAT "/lib/ld-linux.so.3"
+#define GLIBC_DYNAMIC_LINKER_HARD_FLOAT "/lib/ld-linux-armhf.so.3"
 #define GLIBC_DYNAMIC_LINKER_DEFAULT GLIBC_DYNAMIC_LINKER_SOFT_FLOAT
 
 #define GLIBC_DYNAMIC_LINKER \
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/arm/linux-elf.h gcc-5.3.0-zip/gcc/config/arm/linux-elf.h
--- gcc-5.3.0-original/gcc/config/arm/linux-elf.h       2016-03-08 04:57:02.962902614 -0500
+++ gcc-5.3.0-zip/gcc/config/arm/linux-elf.h    2015-06-23 05:26:54.000000000 -0400
@@ -62,7 +62,7 @@
 
 #define LIBGCC_SPEC "%{mfloat-abi=soft*:-lfloat} -lgcc"
 
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld-linux.so.2"
+#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
 
 #define LINUX_TARGET_LINK_SPEC  "%{h*} \
    %{static:-Bstatic} \
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/bfin/linux.h gcc-5.3.0-zip/gcc/config/bfin/linux.h
--- gcc-5.3.0-original/gcc/config/bfin/linux.h  2016-03-08 04:57:02.962902614 -0500
+++ gcc-5.3.0-zip/gcc/config/bfin/linux.h       2015-01-05 07:33:28.000000000 -0500
@@ -45,7 +45,7 @@
   %{shared:-G -Bdynamic} \
   %{!shared: %{!static: \
    %{rdynamic:-export-dynamic} \
-   -dynamic-linker /tools/lib/ld-uClibc.so.0} \
+   -dynamic-linker /lib/ld-uClibc.so.0} \
    %{static}} -init __init -fini __fini"
 
 #undef TARGET_SUPPORTS_SYNC_CALLS
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/cris/linux.h gcc-5.3.0-zip/gcc/config/cris/linux.h
--- gcc-5.3.0-original/gcc/config/cris/linux.h  2016-03-08 04:57:02.962902614 -0500
+++ gcc-5.3.0-zip/gcc/config/cris/linux.h       2015-01-05 07:33:28.000000000 -0500
@@ -102,7 +102,7 @@
 #undef CRIS_DEFAULT_CPU_VERSION
 #define CRIS_DEFAULT_CPU_VERSION CRIS_CPU_NG
 
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld.so.1"
+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
 
 #undef CRIS_LINK_SUBTARGET_SPEC
 #define CRIS_LINK_SUBTARGET_SPEC \
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/freebsd-spec.h gcc-5.3.0-zip/gcc/config/freebsd-spec.h
--- gcc-5.3.0-original/gcc/config/freebsd-spec.h        2016-03-08 04:57:02.962902614 -0500
+++ gcc-5.3.0-zip/gcc/config/freebsd-spec.h     2015-06-25 13:53:14.000000000 -0400
@@ -129,9 +129,9 @@
 #endif
 
 #if FBSD_MAJOR < 6
-#define FBSD_DYNAMIC_LINKER "/tools/libexec/ld-elf.so.1"
+#define FBSD_DYNAMIC_LINKER "/usr/libexec/ld-elf.so.1"
 #else
-#define FBSD_DYNAMIC_LINKER "/tools/libexec/ld-elf.so.1"
+#define FBSD_DYNAMIC_LINKER "/libexec/ld-elf.so.1"
 #endif
 
 /* NOTE: The freebsd-spec.h header is included also for various
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/frv/linux.h gcc-5.3.0-zip/gcc/config/frv/linux.h
--- gcc-5.3.0-original/gcc/config/frv/linux.h   2016-03-08 04:57:02.962902614 -0500
+++ gcc-5.3.0-zip/gcc/config/frv/linux.h        2015-01-05 07:33:28.000000000 -0500
@@ -34,7 +34,7 @@
 #define ENDFILE_SPEC \
   "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
 
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld.so.1"
+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
 
 #undef LINK_SPEC
 #define LINK_SPEC "\
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/i386/gnu.h gcc-5.3.0-zip/gcc/config/i386/gnu.h
--- gcc-5.3.0-original/gcc/config/i386/gnu.h    2016-03-08 04:57:02.962902614 -0500
+++ gcc-5.3.0-zip/gcc/config/i386/gnu.h 2015-01-05 07:33:28.000000000 -0500
@@ -22,7 +22,7 @@
 #define GNU_USER_LINK_EMULATION "elf_i386"
 
 #undef GNU_USER_DYNAMIC_LINKER
-#define GNU_USER_DYNAMIC_LINKER "/tools/lib/ld.so"
+#define GNU_USER_DYNAMIC_LINKER "/lib/ld.so"
 
 #undef STARTFILE_SPEC
 #if defined HAVE_LD_PIE
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/i386/kfreebsd-gnu64.h gcc-5.3.0-zip/gcc/config/i386/kfreebsd-gnu64.h
--- gcc-5.3.0-original/gcc/config/i386/kfreebsd-gnu64.h 2016-03-08 04:57:02.962902614 -0500
+++ gcc-5.3.0-zip/gcc/config/i386/kfreebsd-gnu64.h      2015-01-05 07:33:28.000000000 -0500
@@ -22,6 +22,6 @@
 #define GNU_USER_LINK_EMULATION64 "elf_x86_64_fbsd"
 #define GNU_USER_LINK_EMULATIONX32 "elf32_x86_64_fbsd"
 
-#define GLIBC_DYNAMIC_LINKER32 "/tools/lib/ld.so.1"
-#define GLIBC_DYNAMIC_LINKER64 "/tools/lib/ld-kfreebsd-x86-64.so.1"
-#define GLIBC_DYNAMIC_LINKERX32 "/tools/lib/ld-kfreebsd-x32.so.1"
+#define GLIBC_DYNAMIC_LINKER32 "/lib/ld.so.1"
+#define GLIBC_DYNAMIC_LINKER64 "/lib/ld-kfreebsd-x86-64.so.1"
+#define GLIBC_DYNAMIC_LINKERX32 "/lib/ld-kfreebsd-x32.so.1"
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/i386/kfreebsd-gnu.h gcc-5.3.0-zip/gcc/config/i386/kfreebsd-gnu.h
--- gcc-5.3.0-original/gcc/config/i386/kfreebsd-gnu.h   2016-03-08 04:57:02.962902614 -0500
+++ gcc-5.3.0-zip/gcc/config/i386/kfreebsd-gnu.h        2015-01-05 07:33:28.000000000 -0500
@@ -19,4 +19,4 @@
 <http://www.gnu.org/licenses/>.  */
 
 #define GNU_USER_LINK_EMULATION "elf_i386_fbsd"
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld.so.1"
+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/i386/linux64.h gcc-5.3.0-zip/gcc/config/i386/linux64.h
--- gcc-5.3.0-original/gcc/config/i386/linux64.h        2016-03-08 04:57:02.962902614 -0500
+++ gcc-5.3.0-zip/gcc/config/i386/linux64.h     2015-01-05 07:33:28.000000000 -0500
@@ -27,6 +27,6 @@
 #define GNU_USER_LINK_EMULATION64 "elf_x86_64"
 #define GNU_USER_LINK_EMULATIONX32 "elf32_x86_64"
 
-#define GLIBC_DYNAMIC_LINKER32 "/tools/lib/ld-linux.so.2"
-#define GLIBC_DYNAMIC_LINKER64 "/tools/lib64/ld-linux-x86-64.so.2"
-#define GLIBC_DYNAMIC_LINKERX32 "/tools/libx32/ld-linux-x32.so.2"
+#define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"
+#define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux-x86-64.so.2"
+#define GLIBC_DYNAMIC_LINKERX32 "/libx32/ld-linux-x32.so.2"
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/i386/linux.h gcc-5.3.0-zip/gcc/config/i386/linux.h
--- gcc-5.3.0-original/gcc/config/i386/linux.h  2016-03-08 04:57:02.962902614 -0500
+++ gcc-5.3.0-zip/gcc/config/i386/linux.h       2015-01-05 07:33:28.000000000 -0500
@@ -20,4 +20,4 @@
 <http://www.gnu.org/licenses/>.  */
 
 #define GNU_USER_LINK_EMULATION "elf_i386"
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld-linux.so.2"
+#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/ia64/linux.h gcc-5.3.0-zip/gcc/config/ia64/linux.h
--- gcc-5.3.0-original/gcc/config/ia64/linux.h  2016-03-08 04:57:02.962902614 -0500
+++ gcc-5.3.0-zip/gcc/config/ia64/linux.h       2015-01-05 07:33:28.000000000 -0500
@@ -55,7 +55,7 @@
 /* Define this for shared library support because it isn't in the main
    linux.h file.  */
 
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld-linux-ia64.so.2"
+#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-ia64.so.2"
 
 #undef LINK_SPEC
 #define LINK_SPEC "\
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/knetbsd-gnu.h gcc-5.3.0-zip/gcc/config/knetbsd-gnu.h
--- gcc-5.3.0-original/gcc/config/knetbsd-gnu.h 2016-03-08 04:57:02.962902614 -0500
+++ gcc-5.3.0-zip/gcc/config/knetbsd-gnu.h      2015-01-05 07:33:28.000000000 -0500
@@ -32,4 +32,4 @@
 
 
 #undef GNU_USER_DYNAMIC_LINKER
-#define GNU_USER_DYNAMIC_LINKER "/tools/lib/ld.so.1"
+#define GNU_USER_DYNAMIC_LINKER "/lib/ld.so.1"
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/kopensolaris-gnu.h gcc-5.3.0-zip/gcc/config/kopensolaris-gnu.h
--- gcc-5.3.0-original/gcc/config/kopensolaris-gnu.h    2016-03-08 04:57:02.962902614 -0500
+++ gcc-5.3.0-zip/gcc/config/kopensolaris-gnu.h 2015-01-05 07:33:28.000000000 -0500
@@ -31,5 +31,4 @@
   while (0)
 
 #undef GNU_USER_DYNAMIC_LINKER
-#define GNU_USER_DYNAMIC_LINKER "/tools/lib/ld.so.1"
-
+#define GNU_USER_DYNAMIC_LINKER "/lib/ld.so.1"
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/linux.h gcc-5.3.0-zip/gcc/config/linux.h
--- gcc-5.3.0-original/gcc/config/linux.h       2016-03-08 04:57:02.962902614 -0500
+++ gcc-5.3.0-zip/gcc/config/linux.h    2015-01-05 07:33:28.000000000 -0500
@@ -73,10 +73,10 @@
    GLIBC_DYNAMIC_LINKER must be defined for each target using them, or
    GLIBC_DYNAMIC_LINKER32 and GLIBC_DYNAMIC_LINKER64 for targets
    supporting both 32-bit and 64-bit compilation.  */
-#define UCLIBC_DYNAMIC_LINKER "/tools/lib/ld-uClibc.so.0"
-#define UCLIBC_DYNAMIC_LINKER32 "/tools/lib/ld-uClibc.so.0"
-#define UCLIBC_DYNAMIC_LINKER64 "/tools/lib/ld64-uClibc.so.0"
-#define UCLIBC_DYNAMIC_LINKERX32 "/tools/lib/ldx32-uClibc.so.0"
+#define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
+#define UCLIBC_DYNAMIC_LINKER32 "/lib/ld-uClibc.so.0"
+#define UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0"
+#define UCLIBC_DYNAMIC_LINKERX32 "/lib/ldx32-uClibc.so.0"
 #define BIONIC_DYNAMIC_LINKER "/system/bin/linker"
 #define BIONIC_DYNAMIC_LINKER32 "/system/bin/linker"
 #define BIONIC_DYNAMIC_LINKER64 "/system/bin/linker64"
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/lm32/uclinux-elf.h gcc-5.3.0-zip/gcc/config/lm32/uclinux-elf.h
--- gcc-5.3.0-original/gcc/config/lm32/uclinux-elf.h    2016-03-08 04:57:02.962902614 -0500
+++ gcc-5.3.0-zip/gcc/config/lm32/uclinux-elf.h 2015-01-05 07:33:28.000000000 -0500
@@ -67,7 +67,7 @@
    %{shared:-shared} \
    %{symbolic:-Bsymbolic} \
    %{rdynamic:-export-dynamic} \
-   -dynamic-linker /tools/lib/ld-linux.so.2"
+   -dynamic-linker /lib/ld-linux.so.2"
 
 #define TARGET_OS_CPP_BUILTINS() GNU_USER_TARGET_OS_CPP_BUILTINS()
 
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/m68k/linux.h gcc-5.3.0-zip/gcc/config/m68k/linux.h
--- gcc-5.3.0-original/gcc/config/m68k/linux.h  2016-03-08 04:57:02.962902614 -0500
+++ gcc-5.3.0-zip/gcc/config/m68k/linux.h       2015-01-05 07:33:28.000000000 -0500
@@ -71,7 +71,7 @@
    When the -shared link option is used a final link is not being
    done.  */
 
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld.so.1"
+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
 
 #undef LINK_SPEC
 #define LINK_SPEC "-m m68kelf %{shared} \
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/microblaze/linux.h gcc-5.3.0-zip/gcc/config/microblaze/linux.h
--- gcc-5.3.0-original/gcc/config/microblaze/linux.h    2016-03-08 04:57:02.962902614 -0500
+++ gcc-5.3.0-zip/gcc/config/microblaze/linux.h 2015-05-28 10:08:19.000000000 -0400
@@ -28,7 +28,7 @@
 #undef TLS_NEEDS_GOT
 #define TLS_NEEDS_GOT 1
 
-#define DYNAMIC_LINKER "/tools/lib/ld.so.1"
+#define DYNAMIC_LINKER "/lib/ld.so.1"
 #undef  SUBTARGET_EXTRA_SPECS
 #define SUBTARGET_EXTRA_SPECS \
   { "dynamic_linker", DYNAMIC_LINKER }
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/mips/linux.h gcc-5.3.0-zip/gcc/config/mips/linux.h
--- gcc-5.3.0-original/gcc/config/mips/linux.h  2016-03-08 04:57:02.962902614 -0500
+++ gcc-5.3.0-zip/gcc/config/mips/linux.h       2015-01-05 07:33:28.000000000 -0500
@@ -22,20 +22,20 @@
 #define GNU_USER_LINK_EMULATIONN32 "elf32%{EB:b}%{EL:l}tsmipn32"
 
 #define GLIBC_DYNAMIC_LINKER32 \
-  "%{mnan=2008:/tools/lib/ld-linux-mipsn8.so.1;:/tools/lib/ld.so.1}"
+  "%{mnan=2008:/lib/ld-linux-mipsn8.so.1;:/lib/ld.so.1}"
 #define GLIBC_DYNAMIC_LINKER64 \
-  "%{mnan=2008:/tools/lib64/ld-linux-mipsn8.so.1;:/tools/lib64/ld.so.1}"
+  "%{mnan=2008:/lib64/ld-linux-mipsn8.so.1;:/lib64/ld.so.1}"
 #define GLIBC_DYNAMIC_LINKERN32 \
-  "%{mnan=2008:/tools/lib32/ld-linux-mipsn8.so.1;:/tools/lib32/ld.so.1}"
+  "%{mnan=2008:/lib32/ld-linux-mipsn8.so.1;:/lib32/ld.so.1}"
 
 #undef UCLIBC_DYNAMIC_LINKER32
 #define UCLIBC_DYNAMIC_LINKER32 \
-  "%{mnan=2008:/tools/lib/ld-uClibc-mipsn8.so.0;:/tools/lib/ld-uClibc.so.0}"
+  "%{mnan=2008:/lib/ld-uClibc-mipsn8.so.0;:/lib/ld-uClibc.so.0}"
 #undef UCLIBC_DYNAMIC_LINKER64
 #define UCLIBC_DYNAMIC_LINKER64 \
-  "%{mnan=2008:/tools/lib/ld64-uClibc-mipsn8.so.0;:/tools/lib/ld64-uClibc.so.0}"
+  "%{mnan=2008:/lib/ld64-uClibc-mipsn8.so.0;:/lib/ld64-uClibc.so.0}"
 #define UCLIBC_DYNAMIC_LINKERN32 \
-  "%{mnan=2008:/tools/lib32/ld-uClibc-mipsn8.so.0;:/tools/lib32/ld-uClibc.so.0}"
+  "%{mnan=2008:/lib32/ld-uClibc-mipsn8.so.0;:/lib32/ld-uClibc.so.0}"
 
 #define BIONIC_DYNAMIC_LINKERN32 "/system/bin/linker32"
 #define GNU_USER_DYNAMIC_LINKERN32 \
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/mn10300/linux.h gcc-5.3.0-zip/gcc/config/mn10300/linux.h
--- gcc-5.3.0-original/gcc/config/mn10300/linux.h       2016-03-08 04:57:02.962902614 -0500
+++ gcc-5.3.0-zip/gcc/config/mn10300/linux.h    2015-01-05 07:33:28.000000000 -0500
@@ -32,7 +32,7 @@
 #undef  ASM_SPEC
 #define ASM_SPEC ""
 
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld.so.1"
+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
 
 #undef  LINK_SPEC
 #define LINK_SPEC "%{mrelax:--relax} %{shared:-shared} \
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/pa/pa-linux.h gcc-5.3.0-zip/gcc/config/pa/pa-linux.h
--- gcc-5.3.0-original/gcc/config/pa/pa-linux.h 2016-03-08 04:57:02.962902614 -0500
+++ gcc-5.3.0-zip/gcc/config/pa/pa-linux.h      2015-09-24 20:04:26.000000000 -0400
@@ -37,7 +37,7 @@
 /* Define this for shared library support because it isn't in the main
    linux.h file.  */
 
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld.so.1"
+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
 
 #undef LINK_SPEC
 #define LINK_SPEC "\
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/rs6000/linux64.h gcc-5.3.0-zip/gcc/config/rs6000/linux64.h
--- gcc-5.3.0-original/gcc/config/rs6000/linux64.h      2016-03-08 04:57:02.966902587 -0500
+++ gcc-5.3.0-zip/gcc/config/rs6000/linux64.h   2015-03-09 19:18:57.000000000 -0400
@@ -357,14 +357,14 @@
 #undef LINK_OS_DEFAULT_SPEC
 #define LINK_OS_DEFAULT_SPEC "%(link_os_linux)"
 
-#define GLIBC_DYNAMIC_LINKER32 "/tools/lib/ld.so.1"
+#define GLIBC_DYNAMIC_LINKER32 "/lib/ld.so.1"
 #ifdef LINUX64_DEFAULT_ABI_ELFv2
-#define GLIBC_DYNAMIC_LINKER64 "%{mabi=elfv1:/tools/lib64/ld64.so.1;:/tools/lib64/ld64.so.2}"
+#define GLIBC_DYNAMIC_LINKER64 "%{mabi=elfv1:/lib64/ld64.so.1;:/lib64/ld64.so.2}"
 #else
-#define GLIBC_DYNAMIC_LINKER64 "%{mabi=elfv2:/tools/lib64/ld64.so.2;:/tools/lib64/ld64.so.1}"
+#define GLIBC_DYNAMIC_LINKER64 "%{mabi=elfv2:/lib64/ld64.so.2;:/lib64/ld64.so.1}"
 #endif
-#define UCLIBC_DYNAMIC_LINKER32 "/tools/lib/ld-uClibc.so.0"
-#define UCLIBC_DYNAMIC_LINKER64 "/tools/lib/ld64-uClibc.so.0"
+#define UCLIBC_DYNAMIC_LINKER32 "/lib/ld-uClibc.so.0"
+#define UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0"
 #if DEFAULT_LIBC == LIBC_UCLIBC
 #define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}"
 #elif DEFAULT_LIBC == LIBC_GLIBC
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/rs6000/sysv4.h gcc-5.3.0-zip/gcc/config/rs6000/sysv4.h
--- gcc-5.3.0-original/gcc/config/rs6000/sysv4.h        2016-03-08 04:57:02.966902587 -0500
+++ gcc-5.3.0-zip/gcc/config/rs6000/sysv4.h     2015-09-24 09:46:45.000000000 -0400
@@ -757,8 +757,8 @@
 
 #define LINK_START_LINUX_SPEC ""
 
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld.so.1"
-#define UCLIBC_DYNAMIC_LINKER "/tools/lib/ld-uClibc.so.0"
+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
+#define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
 #if DEFAULT_LIBC == LIBC_UCLIBC
 #define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}"
 #elif !defined (DEFAULT_LIBC) || DEFAULT_LIBC == LIBC_GLIBC
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/s390/linux.h gcc-5.3.0-zip/gcc/config/s390/linux.h
--- gcc-5.3.0-original/gcc/config/s390/linux.h  2016-03-08 04:57:02.966902587 -0500
+++ gcc-5.3.0-zip/gcc/config/s390/linux.h       2015-05-11 03:14:10.000000000 -0400
@@ -60,8 +60,8 @@
 #define MULTILIB_DEFAULTS { "m31" }
 #endif
 
-#define GLIBC_DYNAMIC_LINKER32 "/tools/lib/ld.so.1"
-#define GLIBC_DYNAMIC_LINKER64 "/tools/lib/ld64.so.1"
+#define GLIBC_DYNAMIC_LINKER32 "/lib/ld.so.1"
+#define GLIBC_DYNAMIC_LINKER64 "/lib/ld64.so.1"
 
 #undef  LINK_SPEC
 #define LINK_SPEC \
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/sh/linux.h gcc-5.3.0-zip/gcc/config/sh/linux.h
--- gcc-5.3.0-original/gcc/config/sh/linux.h    2016-03-08 04:57:02.966902587 -0500
+++ gcc-5.3.0-zip/gcc/config/sh/linux.h 2015-01-05 07:33:28.000000000 -0500
@@ -43,7 +43,7 @@
 
 #define TARGET_ASM_FILE_END file_end_indicate_exec_stack
 
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld-linux.so.2"
+#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
 
 #undef SUBTARGET_LINK_EMUL_SUFFIX
 #define SUBTARGET_LINK_EMUL_SUFFIX "_linux"
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/sparc/linux64.h gcc-5.3.0-zip/gcc/config/sparc/linux64.h
--- gcc-5.3.0-original/gcc/config/sparc/linux64.h       2016-03-08 04:57:02.966902587 -0500
+++ gcc-5.3.0-zip/gcc/config/sparc/linux64.h    2015-01-05 07:33:28.000000000 -0500
@@ -84,8 +84,8 @@
    When the -shared link option is used a final link is not being
    done.  */
 
-#define GLIBC_DYNAMIC_LINKER32 "/tools/lib/ld-linux.so.2"
-#define GLIBC_DYNAMIC_LINKER64 "/tools/lib64/ld-linux.so.2"
+#define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"
+#define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux.so.2"
 
 #ifdef SPARC_BI_ARCH
 
@@ -193,7 +193,7 @@
 #else /* !SPARC_BI_ARCH */
 
 #undef LINK_SPEC
-#define LINK_SPEC "-m elf64_sparc -Y P,%R/tools/lib64 %{shared:-shared} \
+#define LINK_SPEC "-m elf64_sparc -Y P,%R/usr/lib64 %{shared:-shared} \
   %{!shared: \
     %{!static: \
       %{rdynamic:-export-dynamic} \
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/sparc/linux.h gcc-5.3.0-zip/gcc/config/sparc/linux.h
--- gcc-5.3.0-original/gcc/config/sparc/linux.h 2016-03-08 04:57:02.966902587 -0500
+++ gcc-5.3.0-zip/gcc/config/sparc/linux.h      2015-01-05 07:33:28.000000000 -0500
@@ -83,7 +83,7 @@
    When the -shared link option is used a final link is not being
    done.  */
 
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld-linux.so.2"
+#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
 
 #undef  LINK_SPEC
 #define LINK_SPEC "-m elf32_sparc %{shared:-shared} \
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/vax/linux.h gcc-5.3.0-zip/gcc/config/vax/linux.h
--- gcc-5.3.0-original/gcc/config/vax/linux.h   2016-03-08 04:57:02.966902587 -0500
+++ gcc-5.3.0-zip/gcc/config/vax/linux.h        2015-01-05 07:33:28.000000000 -0500
@@ -41,7 +41,7 @@
   %{!shared: \
     %{!static: \
       %{rdynamic:-export-dynamic} \
-      -dynamic-linker /tools/lib/ld.so.1} \
+      -dynamic-linker /lib/ld.so.1} \
     %{static:-static}}"
 
 #undef  WCHAR_TYPE
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/xtensa/linux.h gcc-5.3.0-zip/gcc/config/xtensa/linux.h
--- gcc-5.3.0-original/gcc/config/xtensa/linux.h        2016-03-08 04:57:02.966902587 -0500
+++ gcc-5.3.0-zip/gcc/config/xtensa/linux.h     2015-01-05 07:33:28.000000000 -0500
@@ -44,7 +44,7 @@
   %{mlongcalls:--longcalls} \
   %{mno-longcalls:--no-longcalls}"
 
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld.so.1"
+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
 
 #undef LINK_SPEC
 #define LINK_SPEC \
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/zip/netbsd.h gcc-5.3.0-zip/gcc/config/zip/netbsd.h
--- gcc-5.3.0-original/gcc/config/zip/netbsd.h  1969-12-31 19:00:00.000000000 -0500
+++ gcc-5.3.0-zip/gcc/config/zip/netbsd.h       2016-01-30 15:04:14.796899050 -0500
@@ -0,0 +1,82 @@
+////////////////////////////////////////////////////////////////////////////////
+//
+// Filename:   netbsd.h
+//
+// Project:    Zip CPU backend for the GNU Compiler Collection
+//
+// Purpose:
+//
+// Creator:    Dan Gisselquist, Ph.D.
+//             Gisselquist Technology, LLC
+//
+////////////////////////////////////////////////////////////////////////////////
+//
+// Copyright (C) 2016, Gisselquist Technology, LLC
+//
+// This program is free software (firmware): you can redistribute it and/or
+// modify it under the terms of  the GNU General Public License as published
+// by the Free Software Foundation, either version 3 of the License, or (at
+// your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+// for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program.  (It's in the $(ROOT)/doc directory, run make with no
+// target there if the PDF file isn't present.)  If not, see
+// <http://www.gnu.org/licenses/> for a copy.
+//
+// License:    GPL, v3, as defined and found on www.gnu.org,
+//             http://www.gnu.org/licenses/gpl.html
+//
+//
+////////////////////////////////////////////////////////////////////////////////
+#ifndef        ZIP_NETBSD_H
+#define        ZIP_NETBSD_H
+
+/* Define default target values. */
+
+#undef MACHINE_TYPE
+#define        MACHINE_TYPE    "NetBSD/Zip ELF"
+
+#undef TARGET_OS_CPP_BUILTINS
+#define        TARGET_OS_CPP_BUILTINS()        \
+       do { NETBSD_OS_CPP_BUILTINS_ELF();              \
+       builtin_define("__ZIPCPU__");                   \
+       builtin_assert("cpu=zip");                      \
+       builtin_assert("machine=zip");                  \
+       } while(0);
+
+#undef CPP_SPEC
+#define        CPP_SPEC        NETBSD_CPP_SPEC
+
+#undef STARTFILE_SPEC
+#define        STARTFILE_SPEC  NETBSD_STARTFILE_SPEC
+
+#undef ENDFILE_SPEC
+#define        ENDFILE_SPEC    NETBSD_ENDFILE_SPEC
+
+#undef LIB_SPEC
+#define        LIB_SPEC        NETBSD_LIB_SPEC
+
+#undef TARGET_VERSION
+#define        TARGET_VERSION  fprintf(stderr, " (%s)", MACHINE_TYPE);
+
+/* Make gcc agree with <machine/ansi.h> */
+
+#undef WCHAR_TYPE
+#define        WCHAR_TYPE      "int"
+
+#undef WCHAR_TYPE_SIZE
+#define        WCHAR_TYPE_SIZE 32
+
+#undef WINT_TYPE
+#define        WINT_TYPE       "int"
+
+/* Clean up after the generic Zip/ELF configuration. */
+#undef MD_EXEC_PREFIX
+#undef MD_STARTFILE_PREFIX
+
+#endif /* ZIP_NETBSD_H */
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/zip/t-zip gcc-5.3.0-zip/gcc/config/zip/t-zip
--- gcc-5.3.0-original/gcc/config/zip/t-zip     1969-12-31 19:00:00.000000000 -0500
+++ gcc-5.3.0-zip/gcc/config/zip/t-zip  2016-02-04 19:00:59.939652587 -0500
@@ -0,0 +1,47 @@
+################################################################################
+##
+## Filename:   t-zip
+##
+## Project:    Zip CPU backend for the GNU Compiler Collection
+##
+## Purpose:
+##
+## Creator:    Dan Gisselquist, Ph.D.
+##             Gisselquist Technology, LLC
+##
+################################################################################
+##
+## Copyright (C) 2016, Gisselquist Technology, LLC
+##
+## This program is free software (firmware): you can redistribute it and/or
+## modify it under the terms of  the GNU General Public License as published
+## by the Free Software Foundation, either version 3 of the License, or (at
+## your option) any later version.
+##
+## This program is distributed in the hope that it will be useful, but WITHOUT
+## ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
+## FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+## for more details.
+##
+## You should have received a copy of the GNU General Public License along
+## with this program.  (It's in the $(ROOT)/doc directory, run make with no
+## target there if the PDF file isn't present.)  If not, see
+## <http://www.gnu.org/licenses/> for a copy.
+##
+## License:    GPL, v3, as defined and found on www.gnu.org,
+##             http://www.gnu.org/licenses/gpl.html
+##
+##
+################################################################################
+
+FPBIT = fp-bit.c
+DPBIT = dp-bit.c
+
+# dp-bit.c: $(srcdir)/config/fp-bit.c
+       # cat $(srcdir)/config/fp-bit.c > dp-bit.c
+#
+# fp-bit.c: $(srcdir)/config/fp-bit.c
+       # echo '#define FLOAT" > fp-bit.c
+       # cat $(srcdir)/config/fp-bit.c >> fp-bit.c
+
+
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/zip/zip.c gcc-5.3.0-zip/gcc/config/zip/zip.c
--- gcc-5.3.0-original/gcc/config/zip/zip.c     1969-12-31 19:00:00.000000000 -0500
+++ gcc-5.3.0-zip/gcc/config/zip/zip.c  2016-03-08 04:27:14.906499512 -0500
@@ -0,0 +1,2175 @@
+////////////////////////////////////////////////////////////////////////////////
+//
+// Filename:   zip.c
+//
+// Project:    Zip CPU backend for the GNU Compiler Collection
+//
+// Purpose:
+//
+// Creator:    Dan Gisselquist, Ph.D.
+//             Gisselquist Technology, LLC
+//
+////////////////////////////////////////////////////////////////////////////////
+//
+// Copyright (C) 2016, Gisselquist Technology, LLC
+//
+// This program is free software (firmware): you can redistribute it and/or
+// modify it under the terms of  the GNU General Public License as published
+// by the Free Software Foundation, either version 3 of the License, or (at
+// your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+// for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program.  (It's in the $(ROOT)/doc directory, run make with no
+// target there if the PDF file isn't present.)  If not, see
+// <http://www.gnu.org/licenses/> for a copy.
+//
+// License:    GPL, v3, as defined and found on www.gnu.org,
+//             http://www.gnu.org/licenses/gpl.html
+//
+//
+////////////////////////////////////////////////////////////////////////////////
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
+#include "rtl.h"
+#include "dominance.h"
+#include "cfg.h"
+#include "cfgrtl.h"
+#include "cfganal.h"
+#include "lcm.h"
+#include "cfgbuild.h"
+#include "cfgcleanup.h"
+#include "predict.h"
+#include "basic-block.h"
+#include "df.h"
+#include "hashtab.h"
+#include "hash-set.h"
+#include "machmode.h"
+#include "symtab.h"
+#include "rtlhash.h"
+#include "tree.h"
+#include "regs.h"
+#include "hard-reg-set.h"
+#include "real.h"
+#include "insn-config.h"
+#include "conditions.h"
+#include "output.h"
+#include "insn-attr.h"
+#include "flags.h"
+#include "expr.h"
+#include "function.h"
+#include "recog.h"
+#include "toplev.h"
+#include "ggc.h"
+#include "builtins.h"
+#include "calls.h"
+#include "langhooks.h"
+#include "optabs.h"
+#include "explow.h"
+#include "emit-rtl.h"
+
+// #include "tmp_p.h"
+#include "target.h"
+#include "target-def.h"
+// #include "tm-constrs.h"
+// #include "tm-preds.h"
+
+#include "diagnostic.h"
+// #include "integrate.h"
+
+// static int  zip_arg_partial_bytes(CUMULATIVE_ARGS *, enum machine_mode, tree, bool);
+// static      bool    zip_pass_by_reference(CUMULATIVE_ARGS *, enum machine_mode, const_tree, bool);
+static bool    zip_return_in_memory(const_tree, const_tree);
+static bool    zip_frame_pointer_required(void);
+// static      bool    zip_must_pass_in_stack(enum machine_mode, const_tree);
+
+// static      void    zip_setup_incoming_varargs(CUMULATIVE_ARGS *, enum machine_mode, tree, int *, int);
+static void zip_function_arg_advance(cumulative_args_t ca, enum machine_mode mode,
+               const_tree type, bool named);
+static rtx zip_function_arg(cumulative_args_t ca, enum machine_mode mode, const_tree type, bool named);
+
+static void    zip_asm_trampoline_template(FILE *);
+static void    zip_trampoline_init(rtx, tree, rtx);
+static void    zip_init_builtins(void);
+static tree zip_builtin_decl(unsigned, bool);
+// static void zip_asm_output_anchor(rtx x);
+       void    zip_asm_output_def(FILE *s, const char *n, const char *v);
+       void    zip_update_cc_notice(rtx exp, rtx_insn *insn);
+static rtx     zip_expand_builtin(tree exp, rtx target, rtx subtarget,
+                       enum machine_mode tmode, int    ignore);
+static bool    zip_scalar_mode_supported_p(enum machine_mode mode);
+static bool    zip_libgcc_floating_mode_supported_p(enum machine_mode mode);
+static int     zip_address_cost(rtx addr, enum machine_mode mode, addr_space_t as, bool spd);
+static bool    zip_mode_dependent_address_p(const_rtx addr, addr_space_t);
+static unsigned HOST_WIDE_INT  zip_const_anchor = 0x20000;
+static          HOST_WIDE_INT  zip_min_anchor_offset = -0x20000;
+static          HOST_WIDE_INT  zip_max_anchor_offset =  0x1ffff;
+static          HOST_WIDE_INT  zip_min_mov_offset = -0x1000;
+static          HOST_WIDE_INT  zip_max_mov_offset =  0x0fff;
+static int     zip_sched_issue_rate(void) { return 1; }
+static bool    zip_legitimate_address_p(machine_mode, rtx, bool);
+static bool    zip_legitimate_move_operand_p(machine_mode, rtx, bool);
+       void    zip_debug_rtx_pfx(const char *, const_rtx x);
+       void    zip_debug_rtx(const_rtx x);
+static void    zip_override_options(void);
+static bool    zip_can_eliminate(int from ATTRIBUTE_UNUSED, int to);
+// static      void    zip_canonicalize_comparison(int *, rtx *, rtx *, bool);
+static int     zip_memory_move_cost(machine_mode, reg_class_t, bool);
+
+
+#define        ALL_DEBUG_OFF   false
+#define        ALL_DEBUG_ON    false
+
+enum ZIP_BUILTIN_ID_CODE {
+       ZIP_BUILTIN_RTU,
+       ZIP_BUILTIN_HALT,
+       ZIP_BUILTIN_IDLE,
+       ZIP_BUILTIN_SYSCALL,
+       ZIP_BUILTIN_SAVE_CONTEXT,
+       ZIP_BUILTIN_RESTORE_CONTEXT,
+       ZIP_BUILTIN_BITREV,
+       ZIP_BUILTIN_CC,
+       ZIP_BUILTIN_MAX
+};
+
+static GTY (()) tree   zip_builtins[(int)ZIP_BUILTIN_MAX];
+static enum insn_code  zip_builtins_icode[(int)ZIP_BUILTIN_MAX];
+
+
+#include "gt-zip.h"
+
+/* The Global 'targetm' Variable. */
+struct gcc_target      targetm = TARGET_INITIALIZER;
+
+
+enum   reg_class zip_reg_class(int);
+
+#define        LOSE_AND_RETURN(msgid, x)               \
+       do {                                    \
+               zip_operand_lossage(msgid, x);  \
+               return;                         \
+       } while(0)
+
+/* Per-function machine data. */
+struct GTY(()) machine_function
+{
+       /* number of pretented arguments for varargs */
+       int     pretend_size;
+
+       /* Number of bytes saved on the stack for local variables. */
+       int     local_vars_size;
+
+       /* Number of bytes saved on stack for register save area */
+       int     saved_reg_size;
+       int     save_ret;
+
+       int     sp_fp_offset;
+       bool    fp_needed;
+       int     size_for_adjusting_sp;
+};
+
+/* Allocate a chunk of memory for per-function machine-dependent data. */
+
+static struct machine_function *
+zip_init_machine_status(void) {
+       return ggc_cleared_alloc<machine_function>();
+}
+
+static void
+zip_override_options(void)
+{
+       init_machine_status = zip_init_machine_status;
+}
+
+enum   reg_class
+zip_reg_class(int regno)
+{
+       if (is_ZIP_GENERAL_REG(regno)) {
+               return GENERAL_REGS;
+       } else if (is_ZIP_REG(regno)) {
+               return ALL_REGS;
+       } return NO_REGS;
+}
+
+/* Worker function for TARGET_RETURN_IN_MEMORY. */
+static bool
+zip_return_in_memory(const_tree type, const_tree fntype ATTRIBUTE_UNUSED) {
+       const   HOST_WIDE_INT size = int_size_in_bytes(type);
+       return (size == -1)||(size > UNITS_PER_WORD);
+}
+
+/* Emit an error emssage when we're in an asm, and a fatal error for "normal"
+ * insn.  Formatted output isn't easily implemented, since we use output operand
+ * lossage to output the actual message and handle the categorization of the
+ * error.  */
+
+static void
+zip_operand_lossage(const char *msgid, rtx op) {
+       fprintf(stderr, "Operand lossage??\n");
+       debug_rtx(op);
+       zip_debug_rtx(op);
+       output_operand_lossage("%s", msgid);
+}
+
+/* The PRINT_OPERAND_ADDRESS worker.   */
+void
+zip_print_operand_address(FILE *file, rtx x) {
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
+
+       if (dbg) zip_debug_rtx(x);
+       switch(GET_CODE(x)) {
+               case REG:
+                       fprintf(file, "(%s)", reg_names[REGNO(x)]);
+                       break;
+               case SYMBOL_REF:
+                       fprintf(file, "%s", XSTR(x,0));
+                       break;
+               case LABEL_REF:
+                       x = LABEL_REF_LABEL(x);
+               case CODE_LABEL:
+                       { char buf[256];
+                       ASM_GENERATE_INTERNAL_LABEL(buf, "L", CODE_LABEL_NUMBER(x));
+#ifdef ASM_OUTPUT_LABEL_REF
+                       ASM_OUTPUT_LABEL_REF(file, buf);
+#else
+                       assemble_name(file, buf);
+#endif
+                       }
+                       break;
+               case PLUS:
+                       if (!REG_P(XEXP(x, 0)))
+                               abort();
+                       if (CONST_INT_P(XEXP(x, 1))) {
+                               if (INTVAL(XEXP(x,1))!=0) {
+                                       fprintf(file, "%ld(%s)",
+                                       INTVAL(XEXP(x, 1)),
+                                       reg_names[REGNO(XEXP(x, 0))]);
+                               } else {
+                                       fprintf(file, "(%s)",
+                                       reg_names[REGNO(XEXP(x, 0))]);
+                               }
+                       } else if (GET_CODE(XEXP(x,1)) == SYMBOL_REF) {
+                               fprintf(file, "%s(%s)", XSTR(x,0),
+                                       reg_names[REGNO(XEXP(x, 0))]);
+                       } else if ((GET_CODE(XEXP(x, 1)) == MINUS)
+                               && (GET_CODE(XEXP(XEXP(x, 1), 0))==SYMBOL_REF)
+                               && (GET_CODE(XEXP(XEXP(x, 1), 1))==SYMBOL_REF)) {
+                               fprintf(file, "%s-%s(%s)",
+                                       XSTR(XEXP(XEXP(x, 1),0),0),
+                                       XSTR(XEXP(XEXP(x, 1),1),0),
+                                       reg_names[REGNO(XEXP(x, 0))]);
+                       } else
+                               fprintf(file, "#INVALID(%s)",
+                                       reg_names[REGNO(XEXP(x, 0))]);
+                       /*
+                       else if (GET_CODE(XEXP(addr, 1)) == LABEL)
+                               fprintf(file, "%s(%s)",
+                                       GET_CODE(XEXP(addr, 1)),
+                                       reg_names[REGNO(GET_CODE(XEXP(addr, 0)))]);
+                       else if ((GET_CODE(XEXP(addr, 1)) == MINUS)
+                               && (GET_CODE(XEXP(GET_CODE(XEXP(addr, 1)), 0))==LABEL)
+                               && (GET_CODE(XEXP(GET_CODE(XEXP(addr, 1)), 1))==LABEL)) {
+                               fprintf(file, "%s-%s(%s)",
+                                       reg_names[REGNO(GET_CODE(XEXP(addr, 0)))]);
+                                       reg_names[REGNO(GET_CODE(XEXP(addr, 0)))]);
+                                       reg_names[REGNO(GET_CODE(XEXP(addr, 0)))]);
+                       }
+                       */
+                       break;
+               // We don't support direct memory addressing within our
+               // instruction set, even though the instructions themselves
+               // would support direct memory addressing of the lower 18 bits
+               // of memory space.
+               case MEM:
+                       if (dbg) zip_debug_rtx(x);
+                       zip_print_operand_address(file, XEXP(x, 0));
+                       break;
+               default:
+                       abort(); break;
+                       // output_addr_const(file, x);
+               break;
+       }
+}
+
+/* The PRINT_OPERAND worker. */
+
+void
+zip_print_operand(FILE *file, rtx x, int code)
+{
+       rtx operand = x;
+       int     rgoff = 0;
+
+       // fprintf(file, "Print Operand!\n");
+
+       /* New code entries should just be added to the switch below.  If
+        * handling is finished, just return.  If handling was just a
+        * modification of the operand, the modified operand should be put in
+        * "operand", and then do a break to let default handling
+        * (zero-modifier) output the operand.
+        */
+       switch(code) {
+               case 0:
+                       /* No code, print as usual. */
+                       break;
+               case 'L':
+                       /* Lower of two registers, print one up */
+                       rgoff = 1;
+                       break;
+               case 'R':
+               case 'H':
+                       /* Higher of a register pair, print normal */
+                       break;
+
+               default:
+                       LOSE_AND_RETURN("invalid operand modifier letter", x);
+       }
+
+       /* Print an operand as without a modifier letter. */
+       switch (GET_CODE(operand)) {
+       case REG:
+               if (REGNO(operand)+rgoff >= FIRST_PSEUDO_REGISTER)
+                       internal_error("internal error: bad register: %d", REGNO(operand));
+               fprintf(file, "%s", reg_names[REGNO(operand)+rgoff]);
+               return;
+       case SCRATCH:
+               LOSE_AND_RETURN("Need a scratch register", x);
+               return;
+
+       case CODE_LABEL:
+       case LABEL_REF:
+       case SYMBOL_REF:
+       case PLUS:
+               PRINT_OPERAND_ADDRESS(file, operand);
+               return;
+       case MEM:
+               PRINT_OPERAND_ADDRESS(file, XEXP(operand, 0));
+               return;
+
+       default:
+               /* No need to handle all strange variants, let
+                * output_addr_const do it for us.
+                */
+               if (CONSTANT_P(operand)) {
+                       output_addr_const(file, operand);
+                       return;
+               }
+
+               LOSE_AND_RETURN("unexpected operand", x);
+       }
+}
+
+static bool
+zip_frame_pointer_required(void)
+{
+       // This should really depend upon whether we have variable sized
+       // arguments in our frame or not.  Once this fails, let's look
+       // at what the problem was and then whether or not we can detect
+       // it.
+       //
+       // Use a GCC global to determine our answer
+       if (cfun->calls_alloca)
+               return true;
+       return (frame_pointer_needed);
+/*
+       fprintf(stderr, "ZIP_FRAME_POINTER_REQUIRED()\n");
+       if (frame_pointer_needed) {
+               fprintf(stderr, "FRAME_POINTER_NEEDED is true\n");
+               zip_debug_rtx(frame_pointer_rtx);
+               if (frame_pointer_rtx == NULL_RTX)
+                       return true;
+               if (GET_CODE(frame_pointer_rtx)==PLUS) {
+                       if ((REG_P(XEXP(frame_pointer_rtx,0)))
+                               &&(REGNO(XEXP(frame_pointer_rtx, 0))==zip_SP)
+                               &&(CONST_INT_P(XEXP(frame_pointer_rtx,1))))
+                               return false;
+                       if ((REG_P(XEXP(frame_pointer_rtx,1)))
+                               &&(REGNO(XEXP(frame_pointer_rtx, 1))==zip_SP)
+                               &&(CONST_INT_P(XEXP(frame_pointer_rtx,0))))
+                               return false;
+                       return true;
+               } else if ((REG_P(frame_pointer_rtx))
+                               &&(REGNO(frame_pointer_rtx) == zip_SP))
+                       return false;
+               return true;
+       } else return false;
+*/
+}
+
+/* Determine whether or not a register needs to be saved on the stack or not.
+ */
+static bool
+zip_save_reg(int regno) {
+       if (regno == 0)
+               return ((!crtl->is_leaf)
+                       ||((df_regs_ever_live_p(0))&&(!call_used_regs[0])));
+       else if ((regno == zip_GOT)&&(!ZIP_PIC))
+               return  ((df_regs_ever_live_p(regno))
+                               &&(!call_used_regs[regno]));
+       else if (regno == zip_FP)
+               return((zip_frame_pointer_required())||((df_regs_ever_live_p(regno))
+                               &&(!call_used_regs[regno])));
+       else if (regno < zip_FP)
+               return  ((df_regs_ever_live_p(regno))
+                               &&(!call_used_regs[regno]));
+       return false;
+}
+
+/* Compute the size of the local area and the size to be adjusted by the
+ * prologue and epilogue.
+ *
+ * Here's what we are looking at (top is the current, bottom is the last ...)
+ *
+ *     Stack Pointer ->
+ *                     Local variables (could be variable size)
+ *     Frame Pointer ->        (= Stack Pointer + sp_fp_offset)
+ *                     Saved return address, if saved
+ *                     Other Saved registers
+ *                     Saved frame pointer (if used)
+ *                     Saved R12, if used
+ *                     (Stack pointer is not saved)
+ *     Original stack pointer ->       (= Stack_Pointer +size_for_adjusting_sp)
+ *                     Called arguments (not passed in registers)
+ *                     Return arguments (not R1, args.pretend_args_size)
+ *             (Prior function's stack frame ... )
+ *
+ */
+static void
+zip_compute_frame(void) {
+       int     regno;
+       int     args_size;
+
+       // gcc_assert(crtl);
+       gcc_assert(cfun);
+       gcc_assert(cfun->machine);
+
+       args_size=(ACCUMULATE_OUTGOING_ARGS ? crtl->outgoing_args_size : 0);
+
+       if(crtl->args.pretend_args_size > 0) {
+               args_size += crtl->args.pretend_args_size;
+               // printf("%s pretend_args_size : %d\n", current_function_name(),
+                       // crtl->args.pretend_args_size);
+               cfun->machine->pretend_size = crtl->args.pretend_args_size;
+       }
+
+       cfun->machine->local_vars_size = get_frame_size();
+
+       // Save callee-saved registers.
+       cfun->machine->saved_reg_size = 0;
+       for(regno=0; regno < FIRST_PSEUDO_REGISTER; regno++) {
+               if (zip_save_reg(regno))
+                       cfun->machine->saved_reg_size ++;
+       }
+
+       cfun->machine->fp_needed = (zip_frame_pointer_required());
+
+       if ((cfun->machine->fp_needed)&&
+                       (!df_regs_ever_live_p(zip_FP))) {
+               cfun->machine->saved_reg_size ++;
+       }
+
+       cfun->machine->sp_fp_offset = args_size + cfun->machine->local_vars_size;
+       cfun->machine->size_for_adjusting_sp = cfun->machine->local_vars_size
+                       + cfun->machine->saved_reg_size
+                       + args_size;
+
+       /*
+       if (cfun->machine->fp_needed)
+               frame_pointer_rtx = gen_rtx_REG(Pmode, zip_FP);
+       else
+               frame_pointer_rtx = plus_constant(Pmode, gen_rtx_REG(Pmode, zip_SP),
+                       cfun->machine->sp_fp_offset);
+       */
+}
+
+void
+zip_expand_prologue(void) {
+       rtx     insn;
+
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
+       zip_compute_frame();
+
+       if (dbg)  fprintf(stderr, "Computing Prologue instructions\n");
+       if (cfun->machine->size_for_adjusting_sp != 0) {
+               insn = emit_insn(gen_subsi3(stack_pointer_rtx,
+                               stack_pointer_rtx,
+                       gen_int_mode(cfun->machine->size_for_adjusting_sp,
+                               SImode)));
+                       // cfun->machine->sp_fp_offset
+
+               RTX_FRAME_RELATED_P(insn) = 1;
+       }
+
+       {
+               int offset = 0, regno;
+               for(regno=0; regno < FIRST_PSEUDO_REGISTER; regno++) {
+                       if (zip_save_reg(regno)) {
+                               insn=emit_insn(gen_movsi_sto(
+                                       gen_rtx_MEM(SImode, plus_constant(
+                                               Pmode, stack_pointer_rtx,
+                                               cfun->machine->sp_fp_offset
+                                               +offset++, true)),
+                                       gen_rtx_REG(SImode, regno)));
+                               RTX_FRAME_RELATED_P(insn) = 1;
+                       }
+               }
+               if (dbg)  fprintf(stderr, "%d registers saved%s\n", offset,
+                       (crtl->saves_all_registers)?", should be all of them":", less than all");
+       }
+
+       if (cfun->machine->fp_needed) {
+               if (dbg) zip_debug_rtx(stack_pointer_rtx);
+               if (dbg) zip_debug_rtx(frame_pointer_rtx);
+               insn = emit_insn(gen_movsi_reg_off(frame_pointer_rtx,
+                               stack_pointer_rtx, gen_int_mode(
+                                               cfun->machine->sp_fp_offset,
+                                               SImode)));
+               RTX_FRAME_RELATED_P(insn) = 1;
+               if (dbg)  fprintf(stderr, "sp_fp_offset is %d\n", cfun->machine->sp_fp_offset);
+       }
+}
+
+bool
+zip_use_return_insn(void)
+{
+       if ((!reload_completed)||(cfun->machine->fp_needed)
+                       ||(get_frame_size()!=0)) {
+               // If R0 ever gets pushed to the stack, then we cannot
+               // use a master return from anywhere.  We need to clean up the
+               // stack first.
+               if ((!crtl->is_leaf)||((df_regs_ever_live_p(0))
+                                               &&(!call_used_regs[0]))) {
+                       return false;
+               }
+       }
+       zip_compute_frame();
+       return (cfun->machine->size_for_adjusting_sp == 0);
+}
+
+/* As per the notes in M68k.c, quote the function epilogue should not depend
+ * upon the current stack pointer.  It should use the frame poitner only,
+ * if there is a frame pointer.  This is mandatory because of alloca; we also
+ * take advantage of it to omit stack adjustments before returning ...
+ *
+ * Let's see if we can use their approach here.
+ *
+ * We can't.  Consider our choices:
+ *     LOD (FP),R0
+ *     LOD 1(FP),R4
+ *     LOD 2(FP),R5
+ *     LOD 3(FP),R6
+ *     LOD 4(FP),FP
+ *     ... Then what is the stack pointer?
+ * or
+ *     LOD (FP),R0
+ *     LOD 1(FP),R4
+ *     LOD 2(FP),R5
+ *     LOD 3(FP),R6
+ *     MOV FP,SP
+ *     LOD 4(SP),FP
+ *     ... Which suffers unnecessary pipeline stalls, and certainly doesn't
+ *     exploit our pipeline memory function
+ * or
+ *     MOV FP,SP
+ *     LOD (SP),R0
+ *     LOD 1(SP),R4
+ *     LOD 2(SP),R5
+ *     LOD 3(SP),R6
+ *     LOD 4(SP),FP
+ * Which will be our choice.  Note that we do use the stack pointer, eventually.
+ *
+ */
+void
+zip_expand_epilogue(void) {
+       int     regno, offset;
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
+
+       zip_compute_frame();
+
+       if (dbg) fprintf(stderr, "EPILOG::\n");
+       if (cfun->machine->fp_needed) {
+               if (dbg) fprintf(stderr, "EPILOG::Moving frame pointer to stack register\n");
+               emit_insn(gen_movsi_reg(stack_pointer_rtx, frame_pointer_rtx));
+       }
+
+       if (cfun->machine->saved_reg_size != 0) {
+               offset =  (cfun->machine->size_for_adjusting_sp -
+                               cfun->machine->sp_fp_offset
+                       - cfun->machine->saved_reg_size);
+               if (dbg) fprintf(stderr, "EPILOG::Saved_REG_Size = %d\n", cfun->machine->saved_reg_size);
+               for(regno=0; regno < FIRST_PSEUDO_REGISTER; regno++) {
+                       if (zip_save_reg(regno)) {
+                               if (dbg) fprintf(stderr, "EPILOG::RESTORING R%d\n", regno);
+                               emit_insn(gen_movsi_lod(
+                                               gen_rtx_REG(SImode, regno),
+                                       gen_rtx_MEM(SImode, plus_constant( SImode,
+                                               stack_pointer_rtx, offset++, true))));
+                       }
+               }
+       }
+
+       if (cfun->machine->size_for_adjusting_sp != 0) {
+               if (dbg) fprintf(stderr, "EPILOG::ADDSI3(StackPtr, %d)\n",
+                               cfun->machine->size_for_adjusting_sp);
+               emit_insn(gen_addsi3(stack_pointer_rtx, stack_pointer_rtx,
+                       gen_int_mode(
+                               cfun->machine->size_for_adjusting_sp
+                               -cfun->machine->sp_fp_offset, SImode)));
+       }
+       if (dbg) fprintf(stderr, "EPILOG::EMITTING-RETURN\n");
+
+       emit_jump_insn(ret_rtx);
+}
+
+/* Implement RETURN_ADDR_RTX(COUNT, FRAMEADDR).
+ *
+ * We currently only support calculating the return address for the current
+ * frame.
+ */
+
+/*
+rtx
+zip_return_addr_rtx(int count, rtx frame ATTRIBUTE_UNUSED)
+{
+       if (count)
+               return NULL_RTX;
+
+       zip_compute_frame();
+
+       // saved return address for current function is at fp - 1
+       if (cfun->machine->save_ret)
+               return gen_rtx_MEM(Pmode, plus_constant(frame_pointer_rtx,
+                               -UNITS_PER_WORD));
+       return get_hard_reg_initial_val(Pmode, RETURN_ADDRESS_REGNUM);
+}
+*/
+
+/* Implements the macro INITIAL_ELIMINATION_OFFSET,
+ * return the OFFSET.
+ */
+/*
+int
+zip_initial_elimination_offset(int from, int to) {
+       int     ret = 0;
+       zip_compute_frame();
+
+       if (((from) == FRAME_POINTER_REGNUM)&&((to) == STACK_POINTER_REGNUM)) {
+               ret = cfun->machine->sp_fp_offset;
+       } else if (((from)=ARG_POINTER_REGNUM)&&((to)==FRAME_POINTER_REGNUM)) {
+               ret = cfun->machine->local_vars_size;
+       } else {
+               abort();
+       }
+
+       return ret;
+}
+*/
+
+/* Return non-zero if the function argument described by TYPE is to be passed
+ * by reference.
+ */
+/*
+static bool
+zip_pass_by_reference(CUMULATIVE_ARGS *cum ATTRIBUTE_UNUSED,
+               enum machine_mode mode, const_tree type,
+               bool name ATTRIBUTE_UNUSED) {
+       unsigned        HOST_WIDE_INT   size;
+
+       if (type) {
+               if (AGGREGATE_TYPE_P(type)) {
+                       return TRUE;
+               } size = int_size_in_bytes(type);
+       } else
+               size = GET_MODE_SIZE(mode);
+
+       return (size > GET_MODE_SIZE(SImode)); // > 1 word : is this okay?
+       // The idea is to pass everything larger than an int by reference (or
+       // on the stack)
+}
+*/
+
+/*
+ * Code taken from m68k ...
+ */
+static bool
+zip_can_eliminate(int from, int to)
+{
+       // fprintf(stderr, "CAN_ELIMINATE::QUERYING(%d,%d)\n", from, to);
+       if ((from == zip_FP)&&(to == zip_SP))
+               return !cfun->machine->fp_needed;
+       return true;
+}
+
+/*
+static bool
+zip_must_pass_in_stack(enum machine_mode mode, const_tree type)
+{
+       if (mode == BLKmode) {
+               return true;
+       } if (type == NULL) {
+               return false;
+       } return AGGREGATE_TYPE_P(type);
+}
+*/
+
+/*
+static void
+zip_basic_check(void)
+{
+       gcc_assert(mode_base_align[SImode]==4);
+       if ((BITS_PER_UNIT != 32)
+                       ||(GET_MODE_SIZE(SImode)!=1)
+                       ||(GET_MODE_SIZE(DImode)!=1)
+                       ||(HARD_REGNO_NREGS(0,SImode)!=1)) {
+               printf("SIZEOF(SIMode) == %d\n", GET_MODE_SIZE(SImode));
+               printf("BITS_PER_UNIT  == %d\n", BITS_PER_UNIT);
+               gcc_assert(BITS_PER_UNIT==32);
+               gcc_assert(GET_MODE_SIZE(SImode)==1);
+               gcc_assert(HARD_REGNO_NREGS(0,SImode)==1);
+       }
+}
+*/
+
+#define        zip_basic_check()
+
+/* Compute the number of word sized regiters needed to hold a function
+ * argument of mode INT_MODE and tree type TYPE.
+ */
+int
+zip_num_arg_regs(enum machine_mode mode, const_tree type) {
+       int     size;
+
+       zip_basic_check();
+
+       if (targetm.calls.must_pass_in_stack(mode, type))
+               return 0;
+
+       if ((type)&&(mode == BLKmode))
+               size = int_size_in_bytes(type);
+       else
+               size = GET_MODE_SIZE(mode);
+
+       return (size + UNITS_PER_WORD - 1)/UNITS_PER_WORD;
+}
+
+/* pushed in function prologue */
+/*
+static void
+zip_setup_incoming_varargs(CUMULATIVE_ARGS *cum, enum machine_mode mode,
+               tree type, int *pretend_size, int no_rtl) {
+       if (no_rtl)
+               return;
+
+       gcc_assert(mode != BLKmode);
+
+       if (*cum < (ZIP_LAST_ARG_REGNO+1)) {
+               int size = ZIP_FIRST_ARG_REGNO + ZIP_NUM_ARGS_REGS - *cum;
+               rtx     regblock;
+               int     offset = (*cum - ZIP_FIRST_ARG_REGNO) * UNITS_PER_WORD;
+               regblock = gen_rtx_MEM(BLKmode,
+                       plus_constant(arg_pointer_rtx, offset));
+               move_block_from_reg(*cum, regblock, size);
+               *pretend_size = size * UNITS_PER_WORD;
+       }
+
+       if (targetm.calls.strict_argument_naming(cum))
+               *cum = *cum + zip_num_arg_regs(mode, type);
+}
+*/
+
+/*
+static int
+zip_arg_partial_bytes(CUMULATIVE_ARGS *cum, enum machine_mode mode,
+               tree type, bool name ATTRIBUTE_UNUSED) {
+       int     words;
+       unsigned int    regs = zip_num_arg_regs(mode, type);
+
+       if (*cum >= ZIP_LAST_ARG_REGNO + 1)
+               words = 0;
+       else if ((*cum + regs) > ZIP_LAST_ARG_REGNO + 1)
+               words = (*cum + regs) - ZIP_LAST_ARG_REGNO + 1;
+       else
+               words = 0;
+
+       return words * UNITS_PER_WORD;
+}
+*/
+
+static void
+zip_function_arg_advance(cumulative_args_t ca, machine_mode mode,
+               const_tree type, bool named ATTRIBUTE_UNUSED) {
+       CUMULATIVE_ARGS *cum;
+       int     nreg;
+
+       zip_basic_check();
+
+       cum = get_cumulative_args(ca);
+       nreg = zip_num_arg_regs(mode, type);
+       if (((*cum)+nreg) > NUM_ARG_REGS)
+               (*cum) = NUM_ARG_REGS;
+       else
+               (*cum) += nreg;
+}
+
+static rtx
+zip_function_arg(cumulative_args_t ca, machine_mode mode,
+               const_tree type ATTRIBUTE_UNUSED, bool named) {
+       CUMULATIVE_ARGS *cum;
+
+       zip_basic_check();
+
+
+       if (!named)
+               return NULL_RTX;
+       //if (targetm.calls.must_pass_in_stack(mode, type))
+               //return NULL_RTX;
+       cum = get_cumulative_args(ca);
+
+       if ((*cum) >= NUM_ARG_REGS)
+               return NULL_RTX;
+       return
+               gen_rtx_REG(mode, (*cum)+1);
+}
+
+/* NOTICE_UPDATE_CC sends us here
+ */
+void
+zip_update_cc_notice(rtx exp, rtx_insn *insn)
+{
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
+       enum    attr_ccresult  ccr;
+       enum    attr_conditional  conditionally_executed;
+
+       // The default is that nothing has changed.
+       // cc_status = cc_status_prev;
+       rtx     src, dest;
+
+       if (dbg) fprintf(stderr, "CC-NOTICE ...\n");
+       if (dbg) zip_debug_rtx_pfx("CC :", exp);
+       if (dbg) debug_rtx(exp);
+
+       ccr = get_attr_ccresult(insn);
+       if (ccr == CCRESULT_UNKNOWN) {
+               CC_STATUS_INIT;
+               if (dbg) fprintf(stderr, "\tINIT-CC\n");
+               return;
+       } else if (ccr == CCRESULT_UNCHANGED) {
+               if (dbg) fprintf(stderr, "\tUnchanged CC\n");
+               return;
+       }
+
+       if ((GET_CODE(exp) == PARALLEL)&&(GET_CODE(XVECEXP(exp, 0, 0))==SET)) {
+               // This works up and until we add cc0 parallel instructions
+               // to our instruction set.
+               dest = SET_DEST(XVECEXP(exp, 0, 0));
+               src  = SET_SRC (XVECEXP(exp, 0, 0));
+       } else if (GET_CODE(exp) == SET) {
+               dest = SET_DEST(exp);
+               src  = SET_SRC (exp);
+       } else {
+               // First, do nothing if we haven't touched the condition codes.
+               // Condition codes can only be changed as a result of a set
+               // expression ...?
+               if (dbg) fprintf(stderr, "Non-set expression, doesn\'t touch condition codes\n");
+               return;
+       }
+
+       // Gotta wait on this test, until we know whether or not the
+       // conditionally executed instruction was designed to set the
+       // CC0 register.
+       conditionally_executed = get_attr_conditional(insn);
+       if ((conditionally_executed == CONDITIONAL_YES)&&(dest != cc0_rtx)) {
+               // cc_status is unchanged
+               if (dbg) fprintf(stderr, "\tCC -- unchanged (conditional exec)\n");
+               return;
+       }
+
+       if (ccr == CCRESULT_VALIDZN)
+               cc_status.flags = CC_NO_OVERFLOW;
+       else
+               cc_status.flags = 0;
+       cc_status.value1 = dest;
+       if (dest == cc0_rtx)
+               cc_status.value2 = src;
+       else if((REG_P(dest))&&(!reg_mentioned_p(dest, src)))
+               cc_status.value2 = src;
+       else if((SUBREG_P(dest))&&(!reg_mentioned_p(XEXP(dest,0), src)))
+               cc_status.value2 = src;
+       else
+               cc_status.value2 = 0;
+       if (dbg) fprintf(stderr, "\tCC -- Set flags for\n");
+       if (dbg) zip_debug_rtx_pfx("V1: ", dest);
+       if ((dbg)&&(cc_status.value2)) zip_debug_rtx_pfx("V2: ", src);
+       else if (dbg)   fprintf(stderr, "V2: (No SRC)\n");
+       if ((dbg)&&(REG_P(dest))) fprintf(stderr, "src refers to dest ?? %s\n",
+               refers_to_regno_p(REGNO(dest),REGNO(dest),src,NULL)?"Yes":"No");
+       if ((dbg)&&(REG_P(dest))) fprintf(stderr, "Occurrs %d times\n",
+               count_occurrences(dest,src,0));
+       if ((dbg)&&(REG_P(dest))) fprintf(stderr, "%s mentioned\n",
+               reg_mentioned_p(dest,src)?"Is":"Is not");
+       if ((dbg)&&(REG_P(dest))) fprintf(stderr, "%s referenced\n",
+               reg_referenced_p(dest,src)?"Is":"Is not");
+
+//
+// These results are only used in final.c, where they are used to remove
+// compare instructions if the optimizer is on.  If I produce nothing, no
+// compare instructions will be removed.  If I produce something, a smart
+// decision may be made to remove compare instructions.
+//
+// cc_status will be compared  with subsequent
+//     (set (cc0) (something)) (i.e. compare only) instructions
+//
+//     (set (cc0) (compare (x) (y)))
+//     dst = cc0 -- the destination of the set is ignored, save that it must be
+//             cc0
+//     src1 = (compare (x) (y))
+//     if (src1 == compare)&&(y == (const_int 0))
+//             src2 = (x)
+//     else
+//             src2 = null
+//
+//     Four conditions:
+//     1. if (val1)&&(src1 == val1)
+//             This would be true if I had seen a (set (val1) (src1)) insn
+//             If I have seen a (set (val1) (src1))
+//                     or equivalently a (set (val1) (compare (x) (y)))
+//     or
+//     2. if (val2)&&(src1 == val2)
+//             This would be true if I had seen a (set (val1) (src1)) insn,
+//             and only if val2 was still valid.
+//     or
+//     3. if (src2)&&(value1)&&(src2 == value1)
+//             This would be true if we are comparing against zero, and the
+//             number we are comparing against zero is value 1
+//     or
+//     4. if (src2)&&(value2)&&(src2 == value2)
+//             ... or value2.  This is the common ZipCPU case.
+//
+//             then delete the compare.
+//
+}
+
+
+/* totally buggy - we can't return pointers to nested functions */
+static void
+zip_asm_trampoline_template(FILE *f) {
+       // Whereas at one time I thought I wouldn't need it, now I know I
+       // need this trampoline function, although it is for a completely
+       // different purpose than the one I was familiar with.
+       fprintf(f, "\tldihi 0,r1\n");
+       fprintf(f, "\tldilo 0,r1\n");
+       fprintf(f, "\tjmp r1\n");
+}
+
+/* Worker function for TARGET_TRAMPOLINE_INIT. */
+static void
+zip_trampoline_init(rtx m_tramp ATTRIBUTE_UNUSED,
+       tree fndecl ATTRIBUTE_UNUSED,
+       rtx chain_value ATTRIBUTE_UNUSED) {
+// #warning "This needs to be filled out"
+       abort();
+}
+
+static tree
+def_builtin(const char *name, enum insn_code icode, enum ZIP_BUILTIN_ID_CODE code,
+       tree type)
+{
+       tree t = add_builtin_function(name,type,code,BUILT_IN_MD, NULL, NULL_TREE);
+       zip_basic_check();
+
+       if(t) {
+               zip_builtins[code] = t;
+               zip_builtins_icode[code] = icode;
+       }
+
+       return t;
+
+}
+
+void   zip_init_builtins(void) {
+       zip_basic_check();
+
+  tree void_ftype_void = build_function_type_list(void_type_node, NULL_TREE);
+#ifdef HAVE_zip_rtu
+  def_builtin("zip_rtu", CODE_FOR_zip_rtu, ZIP_BUILTIN_RTU, void_ftype_void);
+#endif
+#ifdef HAVE_zip_halt
+  def_builtin("zip_halt",  CODE_FOR_zip_halt,  ZIP_BUILTIN_HALT, void_ftype_void);
+#endif
+#ifdef HAVE_zip_idle
+  def_builtin("zip_idle", CODE_FOR_zip_idle, ZIP_BUILTIN_IDLE, void_ftype_void);
+#endif
+
+#ifdef HAVE_zip_syscall
+// Support int SYSCALL(callID, int a, int b, int c);
+  def_builtin("zip_syscall", CODE_FOR_zip_syscall, ZIP_BUILTIN_SYSCALL,
+                       build_function_type_list(void_type_node, NULL_TREE));
+#endif
+
+#ifdef HAVE_zip_save_context
+  def_builtin("zip_save_context", CODE_FOR_zip_save_context, ZIP_BUILTIN_SAVE_CONTEXT,
+               build_function_type_list(void_type_node, ptr_type_node, 0));
+#endif
+
+#ifdef HAVE_zip_restore_context
+  def_builtin("zip_restore_context", CODE_FOR_zip_restore_context, ZIP_BUILTIN_RESTORE_CONTEXT,
+       build_function_type_list(void_type_node, ptr_type_node, 0));
+#endif
+
+#ifdef HAVE_zip_bitrev
+  def_builtin("zip_bitrev", CODE_FOR_zip_bitrev, ZIP_BUILTIN_BITREV,
+       build_function_type_list(unsigned_type_node, unsigned_type_node,
+               NULL_TREE));
+#endif
+
+#ifdef HAVE_zip_cc
+  def_builtin("zip_cc", CODE_FOR_zip_cc, ZIP_BUILTIN_CC,
+       build_function_type_list(unsigned_type_node, NULL_TREE));
+#endif
+
+}
+
+static tree
+zip_builtin_decl(unsigned zip_builtin_code, bool initialize_p ATTRIBUTE_UNUSED)
+{
+  if (zip_builtin_code >= ZIP_BUILTIN_MAX)
+    return error_mark_node;
+
+  return zip_builtins[zip_builtin_code];
+}
+
+static rtx
+zip_expand_builtin(tree exp, rtx target,
+               rtx subtarget ATTRIBUTE_UNUSED,
+               machine_mode tmode ATTRIBUTE_UNUSED,
+               int     ignore ATTRIBUTE_UNUSED) {
+
+       tree    fndecl = TREE_OPERAND(CALL_EXPR_FN(exp), 0);
+       bool    nonvoid = (TREE_TYPE(TREE_TYPE(fndecl)) != void_type_node);
+       enum    ZIP_BUILTIN_ID_CODE code=(enum ZIP_BUILTIN_ID_CODE)DECL_FUNCTION_CODE(fndecl);
+       enum    insn_code icode = zip_builtins_icode[code];
+       rtx     pat, op[5];
+       call_expr_arg_iterator  iter;
+       tree    arg;
+
+       if ((code == ZIP_BUILTIN_SAVE_CONTEXT)
+                       ||(code == ZIP_BUILTIN_RESTORE_CONTEXT)) {
+               arg = first_call_expr_arg(exp, &iter);
+               if (arg == error_mark_node)
+                       return NULL_RTX;
+               op[0] = expand_normal(arg);
+               if (GET_CODE(op[0]) != REG)
+                       op[0] = force_reg(Pmode, op[0]);
+               pat = GEN_FCN(icode)(op[0]);
+       } else if (code == ZIP_BUILTIN_BITREV) {
+               arg = first_call_expr_arg(exp, &iter);
+               if (arg == error_mark_node) {
+                       return NULL_RTX;
+               }
+               op[0] = expand_normal(arg);
+               if (!target)
+                       target = gen_reg_rtx(SImode);
+               pat = GEN_FCN(icode)(target, op[0]);
+       } else if (code == ZIP_BUILTIN_CC) {
+               if (!target)
+                       target = gen_reg_rtx(SImode);
+               pat = GEN_FCN(icode)(target);
+       } else // RTU, HALT, IDLE
+               pat = GEN_FCN(icode)();
+       if (!pat)
+               return NULL_RTX;
+       emit_insn(pat);
+       return (nonvoid ? target : const0_rtx);
+}
+
+static bool
+zip_scalar_mode_supported_p(enum machine_mode mode) {
+       zip_basic_check();
+
+       return ((mode)==SImode)||((mode)==DImode); // ||((mode)==SFmode);
+}
+
+static bool
+zip_libgcc_floating_mode_supported_p(enum machine_mode mode) {
+       return ((mode)==SFmode)||((mode)==DFmode);
+}
+
+static int
+zip_address_cost(rtx addr ATTRIBUTE_UNUSED,
+       enum machine_mode mode ATTRIBUTE_UNUSED,
+       addr_space_t as ATTRIBUTE_UNUSED, bool spd ATTRIBUTE_UNUSED) {
+       return 1;
+}
+
+static bool
+zip_mode_dependent_address_p(const_rtx addr ATTRIBUTE_UNUSED,
+       addr_space_t as ATTRIBUTE_UNUSED) {
+       return false;
+}
+
+/*
+static void
+zip_asm_output_anchor(rtx x) {
+       printf("ANCHOR: OP(%d)\n", GET_CODE(x));
+}
+*/
+
+static void
+zip_debug_print(const char *pfx, int lvl, const char *str) {
+       int     i;
+       i = lvl;
+       if ((true)||(lvl == 0))
+               fprintf(stderr, "%s", pfx);
+       else
+               i += strlen(pfx);
+       while(i-->0)
+               fprintf(stderr, "  ");
+       fprintf(stderr, "%s\n", str);
+}
+
+static void
+zip_debug_print_m(const char *pfx, int lvl, const char *str, enum machine_mode m) {
+       int     i;
+
+       i = lvl;
+       if ((true)||(lvl == 0))
+               fprintf(stderr, "%s", pfx);
+       else
+               i = lvl+strlen(pfx);
+       while(i-->0)
+               fprintf(stderr, "  ");
+       switch(m) {
+               case VOIDmode:
+                       fprintf(stderr, "%s:V\n", str);
+                       break;
+               case BLKmode:
+                       fprintf(stderr, "%s:BLK\n", str);
+                       break;
+               case BImode:
+                       fprintf(stderr, "%s:BI\n", str);
+                       break;
+#ifdef HAVE_QImode
+               case QImode:
+                       fprintf(stderr, "%s:QI\n", str);
+                       break;
+#endif
+#ifdef HAVE_HImode
+               case HImode:
+                       fprintf(stderr, "%s:HI\n", str);
+                       break;
+#endif
+               case SImode:
+                       fprintf(stderr, "%s:SI\n", str);
+                       break;
+               case DImode:
+                       fprintf(stderr, "%s:DI\n", str);
+                       break;
+               default:
+                       fprintf(stderr, "%s:?\n", str);
+       }
+}
+
+static void
+zip_debug_rtx_1(const char *pfx, const_rtx x, int lvl) {
+       if (x == NULL_RTX) {
+               zip_debug_print(pfx, lvl, "(NULL-RTX)");
+               return;
+       } else if (GET_CODE(x) > NUM_RTX_CODE) {
+               char    buf[64];
+               sprintf(buf, "(BAD-RTX-CODE %d)", GET_CODE(x));
+               zip_debug_print(pfx, lvl, buf);
+               return;
+       } switch(GET_CODE(x)) { // rtl.def
+       case PARALLEL: zip_debug_print(pfx, lvl, "(PARALLEL");
+               debug_rtx(x); break;
+       case INT_LIST: zip_debug_print(pfx, lvl, "(INT-LIST"); break;
+       case SEQUENCE: zip_debug_print(pfx, lvl, "(SEQUENCE"); break;
+       case ADDRESS: zip_debug_print(pfx, lvl, "(ADDRESS"); break;
+       case DEBUG_INSN: zip_debug_print(pfx, lvl, "(DEBUG-INSN"); break;
+       case INSN:
+               zip_debug_print(pfx, lvl, "(INSN");
+               /*
+               { const rtx_insn *tmp_rtx;
+               for(tmp_rtx = as_a <const rtx_insn *>(x); tmp_rtx != 0; tmp_rtx = NEXT_INSN(tmp_rtx)) {
+                       zip_debug_rtx_1(tmp_rtx, lvl+1);
+               }}
+               */
+               zip_debug_rtx_1(pfx, PATTERN(x), lvl+1);
+               debug_rtx(x);
+               zip_debug_print(pfx, lvl, ")");
+               break;
+       case JUMP_INSN: zip_debug_print(pfx, lvl, "(JUMP-INSN");
+               if (JUMP_LABEL(x)) {
+                       zip_debug_print(pfx, lvl+1, "(w/Label)");
+               } else
+                       zip_debug_print(pfx, lvl+1, "(NO label)");
+               break;
+       case CALL:
+               zip_debug_print(pfx, lvl, "(CALL (Adr) (Args)");
+               zip_debug_rtx_1(pfx, XEXP(x,0), lvl+1);
+               zip_debug_rtx_1(pfx, XEXP(x,1), lvl+1);
+               zip_debug_print(pfx, lvl, ")");
+               break;
+       case CALL_INSN: zip_debug_print(pfx, lvl, "(CALL-INSN");
+               debug_rtx(x);
+               break;
+       case BARRIER: zip_debug_print(pfx, lvl, "(BARRIER)"); break;
+       case RETURN: zip_debug_print(pfx, lvl, "(RETURN)"); break;
+       case NOTE:
+               {       char buf[128];
+                       sprintf(buf, "(NOTE %s)", GET_REG_NOTE_NAME(GET_MODE(x)));
+                       zip_debug_print(pfx, lvl, buf);
+               }break;
+       case COND_EXEC: zip_debug_print(pfx, lvl, "(COND_EXEC)");
+               debug_rtx(x);
+               break;
+       case ASM_INPUT: zip_debug_print(pfx, lvl, "(ASM INPUT)"); break;
+       case ASM_OPERANDS: zip_debug_print(pfx, lvl, "(ASM OPERANDS)"); break;
+       case UNSPEC: zip_debug_print(pfx, lvl, "(UNSPEC)"); break;
+       case UNSPEC_VOLATILE: zip_debug_print(pfx, lvl, "(UNSPEC_VOLATILE)"); break;
+       case CODE_LABEL:
+               {
+                       char    buf[64];
+                       sprintf(buf, "(CODE_LABEL %d)", CODE_LABEL_NUMBER(x));
+                       zip_debug_print_m(pfx, lvl, buf, GET_MODE(x));
+               } break;
+       case SET:
+               zip_debug_print_m(pfx, lvl, "(SET", GET_MODE(x));
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
+               zip_debug_print(pfx, lvl, ")");
+               break;
+       case REG:
+               if (REGNO(x) == zip_PC)
+                       zip_debug_print(pfx, lvl, "(PC)");
+               else if (REGNO(x) == zip_CC)
+                       zip_debug_print(pfx, lvl, "(CC0)");
+               else if (REGNO(x) == zip_SP)
+                       zip_debug_print(pfx, lvl, "(SP)");
+               else if (REGNO(x) == zip_FP)
+                       zip_debug_print(pfx, lvl, "(REG FP)");
+               else if (REGNO(x) == zip_GOT)
+                       zip_debug_print(pfx, lvl, "(REG GBL)");
+               else if (FUNCTION_VALUE_REGNO_P(REGNO(x)))
+                       zip_debug_print(pfx, lvl, "(REG RTN-VL)");
+               else if (REGNO(x) == RETURN_ADDRESS_REGNUM)
+                       zip_debug_print(pfx, lvl, "(REG RTN-AD)");
+               else { char buf[25];
+               sprintf(buf, "(REG %d)", REGNO(x));
+               zip_debug_print_m(pfx, lvl, buf, GET_MODE(x));
+               } break;
+       case IF_THEN_ELSE: // 51
+               zip_debug_print(pfx, lvl, "(IF-THEN-ELSE");
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
+               zip_debug_rtx_1(pfx, XEXP(x,2),lvl+1);
+               zip_debug_print(pfx, lvl, ")");
+               break;
+       case PC:
+               zip_debug_print(pfx, lvl, "(PC)");
+               break;
+       case CC0:
+               zip_debug_print(pfx, lvl, "(CC0)");
+               break;
+       case COMPARE:
+               zip_debug_print(pfx, lvl, "(COMPARE");
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
+               zip_debug_print(pfx, lvl, ")");
+               break;
+       case CONST_INT:
+               { char buf[25];
+               if (GET_MODE(x)==SImode)
+                       sprintf(buf, "(CONST:SI %ld)", INTVAL(x));
+               else if (GET_MODE(x)==VOIDmode)
+                       sprintf(buf, "(CONST:V %ld)", INTVAL(x));
+               else
+                       sprintf(buf, "(CONST:? %ld)", INTVAL(x));
+               zip_debug_print(pfx, lvl, buf);
+               } break;
+       case LABEL_REF:
+               zip_debug_print(pfx, lvl, "(LABEL)");
+               break;
+       case SYMBOL_REF:
+               {
+                       char buf[64];
+                       sprintf(buf, "(SYMBOL: %s)", XSTR(x,0));
+                       // fprintf(file, "%s", XSTR(x,0));
+                       zip_debug_print(pfx, lvl, buf);
+               }
+               break;
+       case MEM:
+               zip_debug_print_m(pfx, lvl, "(MEM", GET_MODE(x));
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
+               zip_debug_print(pfx, lvl, ")");
+               break;
+       /*
+       case VALUE:
+               {
+                       char buf[64];
+                       sprintf(buf, "(VALUE: %d)", INTVAL(XEXP,0));
+                       zip_debug_print_m(pfx, lvl, "buf", GET_MODE(x));
+               }
+               break;
+       */
+       case PLUS:
+               zip_debug_print_m(pfx, lvl, "(PLUS", GET_MODE(x));
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
+               zip_debug_print(pfx, lvl, ")");
+               break;
+       case MINUS:
+               zip_debug_print_m(pfx, lvl, "(MINUS", GET_MODE(x));
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
+               zip_debug_print(pfx, lvl, ")");
+               break;
+       case AND:
+               zip_debug_print_m(pfx, lvl, "(AND", GET_MODE(x));
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
+               zip_debug_print(pfx, lvl, ")");
+               break;
+       case IOR:
+               zip_debug_print_m(pfx, lvl, "(OR", GET_MODE(x));
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
+               zip_debug_print(pfx, lvl, ")");
+               break;
+       case XOR:
+               zip_debug_print_m(pfx, lvl, "(XOR", GET_MODE(x));
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
+               zip_debug_print(pfx, lvl, ")");
+               break;
+       case MULT:
+               zip_debug_print_m(pfx, lvl, "(MULT", GET_MODE(x));
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
+               zip_debug_print(pfx, lvl, ")");
+               break;
+       case EQ:        //
+               zip_debug_print_m(pfx, lvl, "(EQ", GET_MODE(x));
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
+               zip_debug_print(pfx, lvl, ")");
+               break;
+       case NE:        //
+               zip_debug_print_m(pfx, lvl, "(NE", GET_MODE(x));
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
+               zip_debug_print(pfx, lvl, ")");
+               break;
+       case GE:        //
+               zip_debug_print_m(pfx, lvl, "(GE", GET_MODE(x));
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
+               zip_debug_print(pfx, lvl, ")");
+               break;
+       case GT:        //
+               zip_debug_print_m(pfx, lvl, "(GT", GET_MODE(x));
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
+               zip_debug_print(pfx, lvl, ")");
+               break;
+       case LE:        //
+               zip_debug_print_m(pfx, lvl, "(LE", GET_MODE(x));
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
+               zip_debug_print(pfx, lvl, ")");
+               break;
+       case LT:        //
+               zip_debug_print_m(pfx, lvl, "(LT", GET_MODE(x));
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
+               zip_debug_print(pfx, lvl, ")");
+               break;
+       case GEU:       //
+               zip_debug_print_m(pfx, lvl, "(GEU", GET_MODE(x));
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
+               zip_debug_print(pfx, lvl, ")");
+               break;
+       case GTU:       //
+               zip_debug_print_m(pfx, lvl, "(GTU", GET_MODE(x));
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
+               zip_debug_print(pfx, lvl, ")");
+               break;
+       case LEU:       //
+               zip_debug_print_m(pfx, lvl, "(LEU", GET_MODE(x));
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
+               zip_debug_print(pfx, lvl, ")");
+               break;
+       case LTU:       //
+               zip_debug_print_m(pfx, lvl, "(LTU", GET_MODE(x));
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
+               zip_debug_print(pfx, lvl, ")");
+               break;
+       case SCRATCH:   //
+               zip_debug_print_m(pfx, lvl, "(SCRATCH)", GET_MODE(x));
+               break;
+       case SUBREG:
+               { char buf[25];
+               sprintf(buf, "(SUBREG %d/%d)", REGNO(XEXP(x,0)),
+                       SUBREG_BYTE(x));
+               zip_debug_print(pfx, lvl, buf);
+               } break;
+       default:
+               { char buf[25];
+               sprintf(buf, "(? = %d) -- calling DEBUG-RTX", GET_CODE(x));
+               zip_debug_print(pfx, lvl, buf);
+               debug_rtx(x);
+               } break;
+       }
+}
+
+void
+zip_debug_rtx_pfx(const char *pfx, const_rtx x) {
+       zip_debug_rtx_1(pfx, x, 0);
+}
+
+void
+zip_debug_rtx(const_rtx x) {
+       zip_debug_rtx_pfx("", x);
+}
+
+void
+zip_debug_insn(rtx_insn *insn ATTRIBUTE_UNUSED) {
+}
+
+void
+zip_debug_bb(basic_block bb) {
+       rtx_insn        *insn;
+
+       fprintf(stderr, "************ BASIC-BLOCK ***************\n");
+       FOR_BB_INSNS(bb, insn)
+       {
+               zip_debug_rtx(insn);
+       }
+}
+
+
+static bool
+zip_legitimate_operand_address(const_rtx x, bool strict)
+{
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
+
+       if (dbg) fprintf(stderr, "ZIP-LEGITIMATE-OPERAND-ADDRESS\n");
+       if (dbg) zip_debug_rtx_pfx("Test: ", x);
+
+       /*
+        * While this might seem to make sense, it sends GCC into an infinite
+        * loop.
+        *
+       if (GET_CODE(x) == MEM) {
+               return (zip_legitimate_operand_address(XEXP(x,0),strict));
+       }
+       */
+
+       /*
+       if (MEM_P(x)) {
+               if((REG_P(XEXP(x,0)))||(GET_CODE(XEXP(x,0))==PLUS))
+                       return (zip_legitimate_operand_address(XEXP(x,0),strict));
+       } else
+       */
+
+       if (NULL_RTX == x)
+               return false;
+       else if ((GET_MODE(x) != SImode)&&(GET_MODE(x) != VOIDmode))
+               return false;
+       else if (REG_P(x)) {
+               // Only insist the register b a valid register if strict is true
+               if (dbg) fprintf(stderr, "ZIP-LEGITIMATE-OPERAND-ADDRESS -> YES! (Reg)\n");
+               return (!strict)||(REGNO(x) != zip_CC);
+       } else if (GET_CODE(x) == PLUS) {
+               // Is it a valid register?
+               /*
+               if (GET_CODE(XEXP(x,0))==PLUS) {
+                       return (zip_legitimate_operand_address(XEXP(XEXP(x,0),0), strict))
+                               &&(zip_const_address_operand(XEXP(XEXP(x,0),1)));
+               } */
+               if(!REG_P(XEXP(x,0))) {
+                       if (dbg) fprintf(stderr, "ZIP-LEGITIMATE-OPERAND-ADDRESS -> No (No reg in +%s)\n",
+                       (GET_CODE(XEXP(x,1))==REG)?", reg in op[1]":"");
+                       return false;
+               } if ((strict)&&(REGNO(XEXP(x,0)) == zip_CC)) {
+                       if (dbg) fprintf(stderr, "ZIP-LEGITIMATE-OPERAND-ADDRESS -> No (Wrong reg in +, %d)\n", REGNO(XEXP(x,0)));
+                       return false;
+               } if ((GET_CODE(XEXP(x, 1)) == CONST_INT)
+                       &&(INTVAL(XEXP(x, 1)) <= zip_max_anchor_offset)
+                       &&(INTVAL(XEXP(x, 1)) >= zip_min_anchor_offset)) {
+                       if (dbg) fprintf(stderr, "ZIP-LEGITIMATE-OPERAND-ADDRESS -> YES! (reg+int)\n");
+                       // if((INTVAL(XEXP(x,1))<0)&&(REGNO(XEXP(x,0))==zip_SP))
+                               // gcc_unreachable();
+                       return true;
+               } if ((GET_CODE(XEXP(x, 1)) == LABEL_REF)
+                       ||(GET_CODE(XEXP(x, 1)) == SYMBOL_REF)) {
+                       // While we can technically support this, the problem
+                       // is that the symbol address could be anywhere, and we
+                       // have no way of recovering if it's outside of our
+                       // 14 allowable bits.
+                       if (dbg) fprintf(stderr, "ZIP-LEGITIMATE-OPERAND-ADDRESS -> No. (reg+lbl)\n");
+                       return false;
+               } if ((GET_CODE(XEXP(x, 1)) == MINUS)
+                       &&((GET_CODE(XEXP(XEXP(x,1),0)) == LABEL_REF)
+                               ||(GET_CODE(XEXP(XEXP(x,1),0)) == CONST_INT)
+                               ||(GET_CODE(XEXP(XEXP(x,1),0)) == SYMBOL_REF))
+                       &&((GET_CODE(XEXP(XEXP(x,1),1)) == LABEL_REF)
+                               ||(GET_CODE(XEXP(XEXP(x,1),0)) == CONST_INT)
+                               ||(GET_CODE(XEXP(XEXP(x,1),1)) == SYMBOL_REF))
+                       &&((GET_CODE(XEXP(XEXP(x,1),0)))
+                               == (GET_CODE(XEXP(XEXP(x,1),1))))) {
+                       if (dbg) fprintf(stderr, "ZIP-LEGITIMATE-OPERAND-ADDRESS -> YES! (lbl-lbl+reg)\n");
+                       return true;
+               }
+       }
+
+       if (dbg) fprintf(stderr, "ZIP-LEGITIMATE-OPERAND-ADDRESS -> No\n");
+       if (dbg) zip_debug_rtx(x);
+       return false;
+}
+
+static bool
+zip_legitimate_move_operand_p(machine_mode mode ATTRIBUTE_UNUSED, rtx x, bool strict) {
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
+
+       if (dbg) fprintf(stderr, "ZIP-VALID-MOVE-OPERAND\n");
+       if (dbg) zip_debug_rtx_pfx("VMov?: ", x);
+
+       if (NULL_RTX == x)
+               return false;
+       else if (REG_P(x)) {
+               // Only insist the register b a valid register if strict is true
+               if (dbg) fprintf(stderr, "ZIP-VALID-MOVE-OPERAND -> YES! (Reg)\n");
+               return (!strict)||(REGNO(x) != zip_CC);
+       } else if (GET_CODE(x) == PLUS) {
+               // Is it a valid register?
+               if (GET_CODE(XEXP(x,0))==PLUS) {
+                       return (zip_legitimate_operand_address(XEXP(x,0), strict))
+                               &&(zip_const_address_operand(XEXP(x,0)));
+               } if(GET_CODE(XEXP(x,0)) != REG) {
+                       if (dbg) fprintf(stderr, "ZIP-VALID-MOVE-OPERAND -> No (No reg in +%s)\n",
+                       (GET_CODE(XEXP(x,1))==REG)?", reg in op[1]":"");
+                       return false;
+               } if ((strict)&&(REGNO(XEXP(x,0)) == zip_CC)) {
+                       if (dbg) fprintf(stderr, "ZIP-VALID-MOVE-OPERAND -> No (Wrong reg in +, %d)\n", REGNO(XEXP(x,0)));
+                       return false;
+               } if ((GET_CODE(XEXP(x, 1)) == CONST_INT)
+                       &&(INTVAL(XEXP(x, 1)) <= zip_max_mov_offset)
+                       &&(INTVAL(XEXP(x, 1)) >= zip_min_mov_offset)) {
+                       if (dbg) fprintf(stderr, "ZIP-VALID-MOVE-OPERAND -> YES! (reg+int)\n");
+                       return true;
+               }
+       }
+
+       if (dbg) fprintf(stderr, "ZIP-VALID-MOVE-OPERAND -> No\n");
+       if (dbg) zip_debug_rtx(x);
+       return false;
+}
+
+int
+zip_pd_mov_operand(rtx op)
+{
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
+
+       if (dbg) fprintf(stderr, "ZIP-VALID-MOV(predicate) for OPERAND\n");
+       return zip_legitimate_move_operand_p(VOIDmode, op, !can_create_pseudo_p());
+}
+
+int
+zip_address_operand(rtx op)
+{
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
+
+       if (dbg) fprintf(stderr, "ZIP-ADDRESS for OPERAND\n");
+       return zip_legitimate_operand_address(op, !can_create_pseudo_p());
+}
+
+int
+zip_pd_address_operand(rtx op)
+{
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
+
+       if (dbg) fprintf(stderr, "ZIP-ADDRESS(predicate) for OPERAND\n");
+       return zip_legitimate_operand_address(op, !can_create_pseudo_p());
+}
+
+int
+zip_ct_address_operand(rtx op)
+{
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
+
+       if (dbg) fprintf(stderr, "ZIP-ADDRESS(constraint) for OPERAND\n");
+       return zip_legitimate_operand_address(op, !can_create_pseudo_p());
+}
+
+int
+zip_const_address_operand(rtx x) {
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
+
+       if (dbg) fprintf(stderr, "is ZIP-CONST-ADDRESS?\n");
+       if (dbg) zip_debug_rtx(x);
+       if ((GET_MODE(x) != SImode)&&(GET_MODE(x) != VOIDmode))
+               return false;
+       if ((GET_CODE(x) == LABEL_REF)
+                       ||(GET_CODE(x) == CODE_LABEL)
+                       ||(GET_CODE(x) == SYMBOL_REF)) {
+               if (dbg) fprintf(stderr, "is ZIP-CONST-ADDRESS? -> YES!\n");
+               return true;
+       } else if (CONST_INT_P(x)) {
+               if (dbg) fprintf(stderr, "is ZIP-CONST-ADDRESS? -> YES!\n");
+               return true;
+       } else if (GET_CODE(x) == PLUS) {
+               if (dbg) fprintf(stderr, "is ZIP-CONST-ADDRESS(PLUS)\n");
+               return ((zip_const_address_operand(XEXP(x,0)))
+                       &&(CONST_INT_P(XEXP(x,1))));
+       } else if (GET_CODE(x) == MINUS) {
+               if (dbg) fprintf(stderr, "is ZIP-CONST-ADDRESS(MINUS)\n");
+               return ((zip_const_address_operand(XEXP(x,0)))
+                       &&(zip_const_address_operand(XEXP(x,1))));
+       }
+
+       if (dbg) fprintf(stderr, "is ZIP-CONST-ADDRESS? -> No\n");
+       if (dbg) zip_debug_rtx(x);
+       return false;
+}
+
+int
+zip_ct_const_address_operand(rtx x) {
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
+
+       if (dbg) fprintf(stderr, "ZIP-CONST-ADDRESS(constraint)\n");
+       return zip_const_address_operand(x);
+}
+
+int
+zip_pd_const_address_operand(rtx x) {
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
+
+       if (dbg) fprintf(stderr, "ZIP-CONST-ADDRESS(predicate)\n");
+       return zip_const_address_operand(x);
+}
+
+
+static bool
+zip_legitimate_address_p(machine_mode mode ATTRIBUTE_UNUSED, rtx x, bool strict)
+{
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
+
+       if (dbg) fprintf(stderr, "Zip-LEGITIMATE-ADDRESS-P\n");
+       if (dbg) zip_debug_rtx(x);
+
+       // Only insist the register be a valid register if strict is true
+       if (zip_legitimate_operand_address(x, strict))
+               return true;
+       else if (zip_const_address_operand(x))
+               return true;
+
+       return false;
+}
+
+void
+zip_asm_output_def(FILE *stream, const char *name, const char *value)
+{
+       assemble_name(stream, name);
+       fprintf(stream, "\t.equ ");
+       assemble_name(stream, value);
+       fputc('\n', stream);
+}
+
+/*
+bool   zip_load_address_lod(rtx regrx, rtx memrx) {
+       fprintf(stderr, "ZIP-LOAD-ADDRESS-LOD\n");
+       if (!MEM_P(memrx))
+               return false;
+       if (GET_CODE(regrx) != REG)
+               return false;
+       enum    rtx_code ic = GET_CODE(memrx);
+       if ((ic == SYMBOL_REF)
+               ||(ic == CODE_LABEL)
+               ||(ic == LABEL_REF)) {
+               if (can_create_pseudo_p()) {
+                       rtx scratch_reg;
+                       scratch_reg = gen_rtx_SCRATCH(SImode);
+                       emit_insn(gen_movsi_ldi(scratch_reg, XEXP(memrx, 0)));
+                       emit_insn(gen_movsi_lod(regrx, scratch_reg));
+                       return true;
+               } else return false;
+       } else return false;
+}
+
+bool   zip_load_address_sto(rtx memrx, rtx regrx) {
+       fprintf(stderr,  "CHECKING-IN-W/ZIP_LOAD_ADDRESS_STORE\n");
+       if (!MEM_P(memrx))
+               return false;
+       if (GET_CODE(regrx) != REG)
+               return false;
+       enum    rtx_code ic = GET_CODE(memrx);
+       if ((ic == SYMBOL_REF)
+               ||(ic == CODE_LABEL)
+               ||(ic == LABEL_REF)) {
+               if (can_create_pseudo_p()) {
+                       rtx scratch_reg;
+                       scratch_reg = gen_rtx_SCRATCH(SImode);
+                       emit_insn(gen_movsi_ldi(scratch_reg, XEXP(memrx, 0)));
+                       emit_insn(gen_movsi_sto(scratch_reg, regrx));
+                       return true;
+               } else return false;
+       } return false;
+}
+*/
+
+#define        SREG_P(RTX) ((REG_P(RTX))||(SUBREG_P(RTX)))
+
+bool   zip_gen_move_rtl(rtx dst, rtx src) {
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
+
+       if (dbg) fprintf(stderr, "ZIP-GEN-MOVE\n");
+       if (dbg) zip_debug_rtx_pfx("FROM: ", src);
+       if (dbg) zip_debug_rtx_pfx("TO  : ", dst);
+       if (dbg) fprintf(stderr, "PSEUDOs: %s\n", can_create_pseudo_p()?"true":"false");
+       if ((SREG_P(dst))&&(SREG_P(src))) {
+               // First type of move... register to register
+               if (dbg) fprintf(stderr, "ZIP-GEN-MOVE/REG -- EMIT\n");
+               emit_insn(gen_movsi_reg(dst, src));
+       } else if ((MEM_P(dst))&&(MEM_P(XEXP(dst,0)))) {
+               if (can_create_pseudo_p()) {
+                       rtx     tmp = gen_reg_rtx(Pmode);
+                       zip_gen_move_rtl(tmp, XEXP(dst,0));
+                       // mark_reg_pointer(tmp,0);
+                       zip_gen_move_rtl(gen_rtx_MEM(GET_MODE(src), tmp), src);
+               } else {
+                       fprintf(stderr, "ZIP:Cannot move into mem w/o pseudo\n");
+                       return false;
+               }
+       } else if ((MEM_P(src))&&(MEM_P(XEXP(src,0)))) {
+               if (can_create_pseudo_p()) {
+                       rtx     tmp = gen_reg_rtx(Pmode);
+                       zip_gen_move_rtl(tmp, XEXP(src,0));
+                       // mark_reg_pointer(tmp,0);
+                       zip_gen_move_rtl(dst, gen_rtx_MEM(GET_MODE(src), tmp));
+               } else {
+                       fprintf(stderr, "ZIP: Cannot move from mem(mem(ptr)) w/o pseudo\n");
+                       return false;
+               }
+       } else if ((SREG_P(dst))&&(GET_CODE(src)==PLUS)
+                       &&(REG_P(XEXP(src,0)))
+                       &&(CONST_INT_P(XEXP(src,1)))) {
+               // Second type of move... register plus offset to register
+               if ((INTVAL(XEXP(src, 1)) <= zip_max_mov_offset)
+                       &&(INTVAL(XEXP(src, 1)) >= zip_min_mov_offset)) {
+                       // The offset is within bounds
+                       if (dbg) fprintf(stderr, "ZIP-GEN-MOVE/REG+OFF -- EMIT\n");
+                       emit_insn(gen_movsi_reg_off(dst, XEXP(src,0),XEXP(src,1)));
+               } else if (can_create_pseudo_p()) {
+                       // The offset is out of bounds, get a new register and
+                       // generate an add instruction to split this up.
+                       rtx     tmp = gen_reg_rtx(GET_MODE(XEXP(src,0)));
+
+                       if (dbg) fprintf(stderr, "ZIP-GEN-MOVE/LDI\n");
+                       emit_insn(gen_movsi_ldi(tmp, XEXP(src,1)));
+                       if (dbg) fprintf(stderr, "ZIP-GEN-MOVE/ADD\n");
+                       emit_insn(gen_addsi3(tmp, tmp, XEXP(src,0)));
+                       if (dbg) fprintf(stderr, "ZIP-GEN-MOVE/DST\n");
+                       emit_insn(gen_movsi_reg(dst, tmp));
+               } else {
+                       fprintf(stderr, "ZIP: Cannot move a(r),b w/o pseudo for out of bounds a\n");
+                       return false;
+               }
+       } else if ((MEM_P(dst))&&(MEM_P(src))) {
+               rtx     tmp;
+               if (dbg) fprintf(stderr, "ZIP-GEN-MOVE/MEM/MEM\n");
+               if (can_create_pseudo_p()) {
+                       tmp = gen_reg_rtx(GET_MODE(src));
+                       emit_insn(gen_movsi(tmp, src));
+                       emit_insn(gen_movsi(dst, tmp));
+               } else {
+                       fprintf(stderr, "ZIP: Cannot move mem(A) to mem(B) w/o pseudo\n");
+                       return false;
+               }
+       } else if ((SREG_P(dst))&&(MEM_P(src))) {
+               // Memory load
+               if (dbg) fprintf(stderr, "ZIP-GEN-MOVE/LOD\n");
+               if (zip_legitimate_operand_address(XEXP(src, 0), false)) {
+                       if (dbg) fprintf(stderr, "ZIP-GEN-MOVE/SIMPLE-LOD(ADDR)\n");
+                       if (dbg) zip_debug_rtx_pfx("Smple-Addr: ", src);
+                       // if (REG_P(XEXP(src,0)))
+                               // mark_reg_pointer(XEXP(src,0),0);
+                       // else if ((GET_CODE(XEXP(src,0))==PLUS)
+                                       // &&(REG_P(XEXP(XEXP(src,0),0))))
+                               // mark_reg_pointer(XEXP(XEXP(src,0),0),0);
+                       emit_insn(gen_movsi_lod(dst, src));
+               } else if (zip_const_address_operand(XEXP(src,0))) {
+                       if (can_create_pseudo_p()) {
+                               rtx     tmp;
+                               if (dbg) fprintf(stderr, "ZIP-GEN-MOVE/LOD(CONST-ADDR)\n");
+                               tmp = gen_reg_rtx(Pmode);
+                               emit_insn(gen_movsi_ldi(tmp, XEXP(src,0)));
+                               // mark_reg_pointer(tmp,0);
+                               emit_insn(gen_movsi_lod(dst, gen_rtx_MEM(GET_MODE(src),tmp)));
+                       } else {
+                               if (dbg) fprintf(stderr, "ZIP-GEN-MOVE/LOD(CONST-ADDR,SELF)\n");
+                               emit_insn(gen_movsi_ldi(dst, XEXP(src,0)));
+                               emit_insn(gen_movsi_lod(dst, gen_rtx_MEM(GET_MODE(src),dst)));
+                       }
+               } else {
+                       internal_error("%s", "ZIP/No usable load\n");
+               }
+       } else if ((MEM_P(dst))&&(SREG_P(src))) {
+               // Memory store
+               if (dbg) fprintf(stderr, "ZIP-GEN-MOVE/STO\n");
+               if (zip_legitimate_operand_address(XEXP(dst, 0), false)) {
+                       // If it's a legitimate address already, do nothing mor
+                       if (dbg) fprintf(stderr, "ZIP-GEN-MOVE/STO(Legit Addr)--EMIT\n");
+                       // if (REG_P(XEXP(dst,0)))
+                               // mark_reg_pointer(XEXP(dst,0),0);
+                       // else if ((GET_CODE(XEXP(dst,0))==PLUS)
+                                       // &&(REG_P(XEXP(XEXP(dst,0),0))))
+                               // mark_reg_pointer(XEXP(XEXP(dst,0),0),0);
+                       emit_insn(gen_movsi_sto(dst, src));
+               } else if (zip_const_address_operand(XEXP(dst,0))) {
+                       rtx     tmp;
+
+                       if (can_create_pseudo_p()) {
+                               if (dbg) fprintf(stderr, "ZIP-GEN-MOVE/STO(Const Addr,Reg) -- EMIT\n");
+                               // Otherwise we need to load the memory address
+                               // into a register
+                               tmp = gen_reg_rtx(Pmode);
+                               // mark_reg_pointer(tmp,0);
+                               emit_insn(gen_movsi_ldi(tmp, XEXP(dst,0)));
+                               //
+                               // Then we can do our load
+                               if (dbg) fprintf(stderr, "ZIP-GEN-MOVE/STO -- emit\n");
+                               emit_insn(gen_movsi_sto(gen_rtx_MEM(GET_MODE(src), tmp), src));
+                       } else {
+                               fprintf(stderr, "Cannot move src -> mem(dst) w/o pseudo\n");
+                               return false;
+                       }
+               } else if (can_create_pseudo_p())
+                       internal_error("%s", "ZIP/No usable store\n");
+               else {
+                       fprintf(stderr, "ZIP/Unanticipated store problem\n");
+                       return false;
+               }
+               if (dbg) fprintf(stderr, "ZIP-GEN-MOVE/STO -- DONE\n");
+       } else if ((MEM_P(dst))&&((CONST_INT_P(src))||(GET_CODE(src)==SYMBOL_REF))) {
+               // Store a constant into memory
+               rtx     tmp;
+
+               if (can_create_pseudo_p()) {
+                       if (dbg) fprintf(stderr, "ZIP-GEN-MOVE/CONST->MEM\n");
+                       // Load the source constant into a register first
+                       tmp = gen_reg_rtx((GET_MODE(src)==VOIDmode)?GET_MODE(dst):GET_MODE(src));
+                       emit_insn(gen_movsi_ldi(tmp,src));
+                       if (dbg) fprintf(stderr, "ZIP-GEN-MOVE/CONST->REG->MEM -- RECURSE\n");
+
+                       // Then do a normal move, recursing to handle memory
+                       // properly
+                       zip_gen_move_rtl(dst, tmp);
+                       if (dbg) fprintf(stderr, "ZIP-GEN-MOVE/CONST->MEM -- DONE\n");
+               } else {
+                       fprintf(stderr, "ZIP/Cannot store constant into mem w/o pseudo\n");
+                       return false;
+               }
+       } else if ((SREG_P(dst))&&(CONST_INT_P(src))) {
+               // Load a constant into a register
+               // The assembler really takes care of all of this, since
+               // the assembler will split the constant if it doesn't fit
+               // into a single instruction.
+               if (dbg) fprintf(stderr, "ZIP-GEN-MOVE/CONST->REG\n");
+               // if ((GET_MODE(dst)==VOIDmode)&&(GET_MODE(src)==VOIDmode))
+                       // PUT_MODE(dst,SImode);
+               emit_insn(gen_movsi_ldi(dst, src));
+       } else if ((REG_P(dst))&&
+                       ((LABEL_P(src))
+                       ||(GET_CODE(src)==SYMBOL_REF)
+                       ||(GET_CODE(src)==LABEL_REF))) {
+               // Load a constant into a register
+               // The assembler really takes care of all of this, since
+               // the assembler will split the constant if it doesn't fit
+               // into a single instruction.
+               if (dbg) fprintf(stderr, "ZIP-GEN-MOVE/LABEL->REG\n");
+               emit_insn(gen_movsi_ldi(dst, src));
+       } else {
+               fprintf(stderr, "ZIP/No usable move\n");
+               zip_debug_rtx_pfx("TO  : ", dst);
+               zip_debug_rtx_pfx("FROM: ", src);
+               debug_rtx(dst);
+               debug_rtx(src);
+               return false;
+       }
+       if (dbg) fprintf(stderr, "ZIP-GEN-MOVE -- DONE\n");
+       return true;
+}
+
+const char *zip_set_zero_or_one(rtx condition, rtx dst) {
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
+       if (dbg) fprintf(stderr, "ZIP::SET-ZERO-OR-ONE\n");
+       if (dbg) zip_debug_rtx_pfx("CND", condition);
+       if (dbg) zip_debug_rtx_pfx("REG", dst);
+       switch(GET_CODE(condition)) {
+       case EQ:        return "LDI\t0,%0\n\tLDILO.Z\t1,%0";
+       case NE:        return "LDI\t0,%0\n\tLDILO.NZ\t1,%0";
+       case LT:        return "LDI\t0,%0\n\tLDILO.LT\t1,%0";
+       case GT:        return "LDI\t0,%0\n\tLDILO.GT\t1,%0";
+       case LE:        return "LDI\t1,%0\n\tLDILO.GT\t0,%0";
+       case GE:        return "LDI\t0,%0\n\tLDILO.GE\t1,%0";
+       case LTU:       return "LDI\t0,%0\n\tLDILO.C\t1,%0";
+       case GTU:       return "LDI\t1,%0\n\tLDILO.C\t0,%0\n\tLDILO.Z\t0,%0";
+       case LEU:       return "LDI\t0,%0\n\tLDILO.C\t1,%0\n\tLDILO.Z\t1,%0";
+       case GEU:       return "LDI\t1,%0\n\tLDILO.C\t0,%0";
+       default:
+               zip_debug_rtx(condition);
+               internal_error("CSTORE Unsupported condition");
+               return NULL;
+       }
+}
+
+const char *zip_binary_movsicc(rtx_code condition, const char *op, const int opno) {
+       static char     result[64] = "";
+       switch(condition) {
+               //
+               // Result already exists in the iffalse register
+               // Can't change it.  Therefore, on the
+               // condition ... move true register to the
+               // destination
+               //
+               case EQ:        sprintf(result, "%s.Z\t%%%d,%%0", op, opno); break;
+               case NE:        sprintf(result, "%s.NZ\t%%%d,%%0", op, opno); break;
+               case LT:        sprintf(result, "%s.LT\t%%%d,%%0", op, opno); break;
+               case GT:        sprintf(result, "%s.GT\t%%%d,%%0", op, opno); break;
+               // .LE doesn't exist on Zip CPU--turn this into two instructions
+               case LE:        sprintf(result, "%s.LT\t%%%d,%%0\n\t%s.Z\t%%%d,%%0", op, opno, op, opno); break;
+               case GE:        sprintf(result, "%s.GE\t%%%d,%%0", op, opno); break;
+               case LTU:       sprintf(result, "%s.C\t%%%d,%%0", op, opno); break;
+               //
+               // .GTU doesn't exist on the Zip CPU either. We also note that
+               // .C will never be set on an equal condition.  Therefore, we
+               // turn this into a XOR.NZ 2,CC, which will set the .C condition
+               // as long as .Z wasn't true.  We then undo this when we're
+               // done.  This is possible since none of these instructions
+               // (LDI/MOV/Lod conditional, nor Xor conditional) will ever set
+               // the condition codes.
+               //
+               // This is obviously not very optimal.  Avoid this by all means
+               // if you can
+               case GTU:       sprintf(result, "XOR.NZ\t2,CC\n%s.C\t%%%d,%%0\n\tXOR.NZ\t2,CC", op, opno); break;
+               // .LEU doesn't exist on Zip CPU either--turn this into another
+               // two instructions
+               case LEU:       sprintf(result, "%s.C\t%%%d,%%0\n\t%s.Z\t%%%d,%%0", op, opno, op, opno); break;
+               //
+               // .GEU doesn't exist on Zip CPU.  Implementing it her is
+               // painful.  We can change the condition codes to make it so,
+               // but the instruction requires the condition codes not be
+               // changed.  Hence, we must change them back if we do so.
+               //
+               // .C will be set on less than but not equal.  Hence !.C will
+               // be true on greater than or equal.
+               case GEU:       sprintf(result, "XOR\t2,CC\n%s.C\t%%%d,%%0\n\tXOR\t2,CC", op, opno); break;
+               default:
+                       internal_error("MOVSICC(BINARY) Unsupported condition");
+                       return NULL;
+       } return result;
+}
+
+const char *zip_tertiary_movsicc(rtx condition, const char *optrue, const char *opfalse) {
+       static  char    result[64] = "";
+       switch(GET_CODE(condition)) {
+               case EQ:        sprintf(result,"%s\t%%3,%%0\n\t%s.Z\t%%2,%%0", opfalse, optrue); break;
+               case NE:        sprintf(result,"%s\t%%3,%%0\n\t%s.NZ\t%%2,%%0", opfalse, optrue); break;
+               case LT:        sprintf(result,"%s\t%%3,%%0\n\t%s.LT\t%%2,%%0", opfalse, optrue); break;
+               case GT:        sprintf(result,"%s\t%%3,%%0\n\t%s.GT\t%%2,%%0", opfalse, optrue); break;
+               // LE doesn't exist on a Zip CPU.  Accomplish this by
+               // reversing the condition: i.e., load the false value into
+               // the register, and the on condition load the true value.
+               case LE:        sprintf(result,"%s\t%%2,%%0\n\t%s.GT\t%%3,%%0", optrue, opfalse); break;
+               case GE:        sprintf(result,"%s\t%%3,%%0\n\t%s.GE\t%%2,%%0", opfalse, optrue); break;
+               case LTU:       sprintf(result,"%s\t%%3,%%0\n\t%s.C\t%%2,%%0", opfalse, optrue); break;
+               //
+               case GTU:       sprintf(result,"%s\t%%2,%%0\n\t%s.C\t%%3,%%0\n\t%s.Z\t%%3,%%0", optrue, opfalse, opfalse); break;
+               case LEU:       sprintf(result,"%s\t%%3,%%0\n\t%s.C\t%%2,%%0\n\t%s.Z\t%%2,%%0", opfalse, optrue, optrue); break;
+               case GEU:       sprintf(result,"%s\t%%2,%%0\n\t%s.C\t%%3,%%0\n", optrue, opfalse); break;
+               default:
+                       internal_error("MOVSICC Unsupported condition");
+                       return NULL;
+       } return result;
+}
+
+const char *zip_movsicc(rtx dst, rtx condition, rtx iftrue, rtx iffalse) {
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
+       if (dbg) fprintf(stderr, "ZIP::MOVSICC\n");
+       if (dbg) zip_debug_rtx_pfx("DST", dst);
+       if (dbg) zip_debug_rtx_pfx("CND", condition);
+       if (dbg) zip_debug_rtx_pfx("TRU", iftrue);
+       if (dbg) zip_debug_rtx_pfx("FAL", iffalse);
+       if ((REG_P(iftrue))&&(REGNO(dst)==REGNO(iftrue))) {
+               if (dbg) fprintf(stderr, "ZIP::MOVSICC -- CASE if(X) -> R\n");
+               if (zip_legitimate_move_operand_p(SImode, iffalse, true))
+                       return zip_binary_movsicc(reverse_condition(GET_CODE(condition)), "MOV", 3);
+               else if (zip_const_address_operand(iffalse))
+                       return zip_binary_movsicc(reverse_condition(GET_CODE(condition)), "LDI", 3);
+               else if (zip_const_address_operand(iffalse))
+                       return zip_binary_movsicc(reverse_condition(GET_CODE(condition)), "LDI", 3);
+               else if ((MEM_P(iffalse))&&(zip_legitimate_operand_address(XEXP(iffalse,0), true)))
+                       return zip_binary_movsicc(reverse_condition(GET_CODE(condition)), "LOD", 3);
+               else {
+                       internal_error("MOVSICC Unsupported mode");
+                       return NULL;
+               }
+       } if ((REG_P(iftrue))&&(REGNO(dst)==REGNO(iftrue))) {
+               if (dbg) fprintf(stderr, "ZIP::MOVSICC -- CASE if(!X) -> R\n");
+               if (zip_legitimate_move_operand_p(SImode, iftrue, true))
+                       return zip_binary_movsicc(GET_CODE(condition), "MOV",2);
+               else if (zip_const_address_operand(iffalse))
+                       return zip_binary_movsicc(GET_CODE(condition), "LDI",2);
+               else if (zip_const_address_operand(iffalse))
+                       return zip_binary_movsicc(GET_CODE(condition), "LDI",2);
+               else if ((MEM_P(iffalse))&&(zip_legitimate_operand_address(XEXP(iffalse,0), true)))
+                       return zip_binary_movsicc(GET_CODE(condition), "LOD",2);
+               else {
+                       internal_error("MOVSICC Unsupported mode");
+                       return NULL;
+               }
+       } if ((zip_const_address_operand(iftrue))&&(zip_const_address_operand(iffalse))) {
+               if (dbg) fprintf(stderr, "ZIP::MOVSICC -- IF(X) #1 ELSE #2\n");
+               return zip_tertiary_movsicc(condition, "LDI", "LDI");
+       } if ((zip_const_address_operand(iftrue))&&(zip_legitimate_move_operand_p(SImode, iffalse, true))) {
+               if (dbg) fprintf(stderr, "ZIP::MOVSICC -- IF(X) #1 ELSE A+B\n");
+               return zip_tertiary_movsicc(condition, "LDI", "MOV");
+       } if ((zip_legitimate_move_operand_p(SImode, iftrue, true))&&(zip_const_address_operand(iffalse))) {
+               if (dbg) fprintf(stderr, "ZIP::MOVSICC -- IF(X) A+B ELSE #x\n");
+               return zip_tertiary_movsicc(condition, "MOV", "LDI");
+       } if ((zip_legitimate_move_operand_p(SImode, iftrue, true))
+                       &&(zip_legitimate_move_operand_p(SImode, iffalse, true))) {
+               if (dbg) fprintf(stderr, "ZIP::MOVSICC -- IF(X) A+B ELSE C+D\n");
+               return zip_tertiary_movsicc(condition, "MOV", "MOV");
+       }
+       if ((MEM_P(iftrue))
+               &&(zip_legitimate_operand_address(XEXP(iftrue,0), true))
+               &&(zip_legitimate_move_operand_p(SImode, iffalse, true))) {
+               if (dbg) fprintf(stderr, "ZIP::MOVSICC -- IF(X) A[B] ELSE C+D\n");
+               return zip_tertiary_movsicc(condition, "LOD", "MOV");
+       } if ((zip_legitimate_move_operand_p(SImode, iftrue, true))
+               &&(MEM_P(iffalse))&&(zip_legitimate_operand_address(XEXP(iffalse,0), true))) {
+               if (dbg) fprintf(stderr, "ZIP::MOVSICC -- IF(X) A+B ELSE C[D]\n");
+               return zip_tertiary_movsicc(condition, "MOV", "LOD");
+       } if ((MEM_P(iftrue))&&(zip_legitimate_operand_address(XEXP(iftrue,0), true))
+               &&(MEM_P(iffalse))&&(zip_legitimate_operand_address(XEXP(iffalse,0), true))) {
+               if (dbg) fprintf(stderr, "ZIP::MOVSICC -- IF(X) A[B] ELSE C[D]\n");
+               return zip_tertiary_movsicc(condition, "LOD", "LOD");
+       }
+
+       internal_error("MOVSICC Operands not supported");
+}
+
+const char *zip_addsicc(rtx dst, rtx condition, rtx ifsrc, rtx addv ATTRIBUTE_UNUSED) {
+       // We know upon entry that REG_P(dst) must be true
+       if (!REG_P(dst))
+               internal_error("%s","ADDSICC into something other than register");
+       if ((REG_P(ifsrc))&&(REGNO(dst)==REGNO(ifsrc))) {
+               switch (GET_CODE(condition)) {
+               case EQ: return "ADD.Z\t%3,%0";
+               case NE: return "ADD.NZ\t%3,%0";
+               case LT: return "ADD.LT\t%3,%0";
+               case GT: return "ADD.GT\t%3,%0";
+               case LE: return "ADD.LT\t%3,%0\n\tADD.Z\t%3,%0";
+               case GE: return "ADD.GE\t%3,%0";
+               case LTU: return "ADD.C\t%3,%0";
+               case LEU: return "ADD.C\t%3,%0\n\tADD.Z\t%3,%0";
+               case GEU: return "XOR\t2,CC\n\tADD.C\t%3,%0\n\tXOR\t2,CC";
+               // Can do a GEU comparison, and then undo on the Zero condition
+               case GTU: return "XOR\t2,CC\n\tADD.C\t%3,%0\n\tSUB.Z\t%3,%0\n\tXOR\t2,CC";
+               default:
+                       internal_error("%s", "Zip/No usable addsi expansion");
+                       break;
+               }
+       } else {
+               // MOV A+REG,REG
+               switch (GET_CODE(condition)) {
+               case EQ: return "MOV.Z\t%3+%2,%0";
+               case NE: return "MOV.NZ\t%3+%2,%0";
+               case LT: return "MOV.LT\t%3+%2,%0";
+               case GT: return "MOV.GT\t%3+%2,%0";
+               case LE: return "MOV.LT\t%3+%2,%0\n\tMOV.Z\t%3+%2,%0";
+               case GE: return "MOV.GE\t%3+%2,%0";
+               case LTU: return "MOV.C\t%3+%2,%0";
+               case LEU: return "MOV.C\t%3+%2,%0\n\tMOV.Z\t%3+%2,%0";
+               case GEU: return "XOR\t2,CC\n\tMOV.C\t%3+%2,%0\n\tXOR\t2,CC";
+               // Can do a GEU comparison, and then undo on the Zero condition
+               // EXCEPT: with a move instruction, what's there to undo?  We
+               // just clobbered our register!
+               // case GTU: return "XOR\t2,CC\n\tMOV.C\t%3,%0\n\tSUB.Z\t%3,%0XOR\t2,CC";
+               default:
+                       internal_error("%s", "Zip/No usable addsi(reg,reg) expansion");
+                       break;
+               }
+       }
+
+       return "BREAK";
+}
+
+static void
+zip_canonicalize_comparison(int *code ATTRIBUTE_UNUSED, rtx *op0 ATTRIBUTE_UNUSED, rtx *op1 ATTRIBUTE_UNUSED, bool preserve_op0 ATTRIBUTE_UNUSED)
+{
+/*
+ * While I'd like to keep and have this code, it does absolutely nothing.  The
+ * code apparently only gets called on non-CC0 targets.
+ *
+ *
+       const bool      dbg = true;
+
+       if (dbg) fprintf(stderr, "CANONICALIZE ...%s\n", (preserve_op0)?"(Preserve Op0)":"");
+       if (dbg) zip_debug_rtx_pfx("CODE", gen_rtx_fmt_ee((rtx_code)*code, VOIDmode, cc0_rtx, const0_rtx));
+       if (dbg) zip_debug_rtx_pfx("OP0 ", *op0);
+       if (dbg) zip_debug_rtx_pfx("OP1 ", *op1);
+
+       if ((!preserve_op0)&&((*code == LE)||(*code == GTU)||(*code == GEU))) {
+               rtx tem = *op0;
+               *op0 = *op1;
+               *op1 = tem;
+               *code = (int)swap_condition((enum rtx_code)*code);
+       }
+
+       if ((*code == LE)||(*code == LEU)||(*code==GTU)) {
+               int     offset = (*code == GTU) ? 1 : -1;
+               bool    swap = false;
+               // A < B => A <= B-1
+               if (CONST_INT_P(*op1)) {
+                       *op1 = GEN_INT(INTVAL(*op1)+offset);
+                       swap = true;
+               } else if (REG_P(*op1)) {
+                       *op1 = plus_constant(SImode, *op1, offset, true);
+                       swap = true;
+               } else if ((GET_CODE(*op1)==PLUS)&&(CONST_INT_P(XEXP(*op1,1)))){
+                       *op1 = plus_constant(GET_MODE(*op1),XEXP(*op1,0),
+                                       INTVAL(XEXP(*op1,1))+offset);
+                       swap = true;
+               } if (swap) {
+                       if (*code == LE)
+                               (*code) = LT;
+                       else if (*code == LEU)
+                               (*code) = LTU;
+                       else // (*code) == GTU
+                               (*code) = GEU;
+               }
+       }
+*/
+}
+
+static int     zip_memory_move_cost(machine_mode mode, reg_class_t ATTRIBUTE_UNUSED, bool in ATTRIBUTE_UNUSED) {
+       int     rv = 14;
+       if ((mode == DImode)||(mode == DFmode))
+               rv += 2;
+       return rv;
+}
+
+// #warning "How do we tell the compiler LDI label is expensive as 2 ops"?
+
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/zip/zip.h gcc-5.3.0-zip/gcc/config/zip/zip.h
--- gcc-5.3.0-original/gcc/config/zip/zip.h     1969-12-31 19:00:00.000000000 -0500
+++ gcc-5.3.0-zip/gcc/config/zip/zip.h  2016-03-07 20:19:32.623843475 -0500
@@ -0,0 +1,3707 @@
+////////////////////////////////////////////////////////////////////////////////
+//
+// Filename:   gcc/config/zip/zip.h
+//
+// Project:    Zip CPU backend for the GNU Compiler Collection
+//
+// Purpose:
+//
+// Creator:    Dan Gisselquist, Ph.D.
+//             Gisselquist Technology, LLC
+//
+////////////////////////////////////////////////////////////////////////////////
+//
+// Copyright (C) 2016, Gisselquist Technology, LLC
+//
+// This program is free software (firmware): you can redistribute it and/or
+// modify it under the terms of  the GNU General Public License as published
+// by the Free Software Foundation, either version 3 of the License, or (at
+// your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+// for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program.  (It's in the $(ROOT)/doc directory, run make with no
+// target there if the PDF file isn't present.)  If not, see
+// <http://www.gnu.org/licenses/> for a copy.
+//
+// License:    GPL, v3, as defined and found on www.gnu.org,
+//             http://www.gnu.org/licenses/gpl.html
+//
+//
+////////////////////////////////////////////////////////////////////////////////
+#ifndef        GCC_ZIP_H
+#define        GCC_ZIP_H
+
+
+//
+//
+// Zip CPU configuration registers
+//
+//
+#define        ZIP_USER        0        // Assume we are in supervisor mode
+#define        ZIP_MULTIPLY    1       // Assume we have multiply instructions
+#define        ZIP_DIVIDE      1       // Assume we have divide instructions
+#define        ZIP_FPU         0        // Assume we have no floating point instructions
+#define        ZIP_PIPELINED   1       // Assume our instructions are pipelined
+#define        ZIP_VLIW        1       // Assume we have the VLIW feature
+#define        ZIP_ATOMIC      ((ZIP_PIPELINED)&&(ZIP_VLIW))
+#define        ZIP_PIC         0        // Attempting to produce PIC code, with GOT
+#define        ZIP_HAS_DI      1
+
+// Zip has 16 registers in each user mode.
+//     Register 15 is the program counter (PC)
+//     Register 14 is the condition codes (CC)
+//     Register 13 is the stack pointer   (SP)
+//     Register 12 (may be) the Global Offset Table pointer (GOT)
+//     Register  0 (may be) the return address pointer
+// Registers 16-31 may only be used in supervisor mode.
+#define        is_ZIP_GENERAL_REG(REGNO)       ((REGNO)<13)
+#define        is_ZIP_REG(REGNO)               ((REGNO)<16)
+
+#undef STARTFILE_SPEC
+#define        STARTFILE_SPEC  "_start"
+
+#undef ENDFILE_SPEC
+#define        ENDFILE_SPEC    ""
+
+#undef LIB_SPEC
+#define        LIB_SPEC        "%{!g:-lc} %{g:-lg} -lzip"
+
+// #define     zip_FP_PSEUDO   16
+#define        zip_PC          15
+#define        zip_CC          14
+#define        zip_SP          13
+#define        zip_FP          12
+#define        zip_GOT         11
+#define        zip_AP          10
+#define        zip_R1          1
+#define        zip_R0          0
+
+#define        ZIP_FIRST_ARG_REGNO     1
+#define        ZIP_LAST_ARG_REGNO      5
+#define        NUM_ARG_REGS            5
+#define        MAX_PARM_REGS           5
+
+/* The overall framework of an assembler file */
+
+#undef ASM_SPEC
+#define        ASM_COMMENT_START       ";"
+#define        ASM_APP_ON              ""
+#define        ASM_APP_OFF             ""
+
+#define        FILE_ASM_OP             "\t.file\n"
+
+/* Output and Generation of Labels */
+#define        GLOBAL_ASM_OP           "\t.global\t"
+
+#undef BITS_PER_UNIT
+#define        BITS_PER_UNIT   (32)
+
+/* Assembler Commands for Alignment */
+#define        ASM_OUTPUT_ALIGN(STREAM,POWER)  \
+               { int pwr = POWER; fprintf(STREAM, "\t.p2align %d\n", (pwr<2)?2:pwr); }
+
+
+/* A C compound statement to output to stdio stream STREAM the assembler syntax
+ * for an instruction operand X. */
+#define        PRINT_OPERAND(STREAM, X, CODE)  zip_print_operand(STREAM, X, CODE)
+#define        PRINT_OPERAND_ADDRESS(STREAM, X) zip_print_operand_address(STREAM, X)
+
+/* Passing arguments in registers */
+#define        FUNCTION_VALUE_REGNO_P(REGNO)   ((REGNO)==zip_R1)
+
+/* Define how to find the value returned by a function.  VALTYPE is the data
+ * type of the value (as a tree).  If the precise function being called is known
+ * FUNC is its FUNCTION_DECL; otherwise, FUNC is 0. */
+#define        FUNCTION_VALUE(VALTYPE, FUNC) gen_rtx_REG(TYPE_MODE(VALTYPE), zip_R1)
+
+/* Define how to find the value returned by a library function assuming the
+ * value has mode MODE.
+ */
+#define        LIBCALL_VALUE(MODE)     gen_rtx_REG(MODE, zip_R1)
+
+
+/* STACK AND CALLING */
+
+
+/* Define this macro as a C expression that is nonzero for registers that are
+ * used by the epilogue or the return pattern.  The stack and frame pointer
+ * registers are already assumed to be used as needed.
+ */
+#define        EPILOGUE_USES(R)        (R == RETURN_ADDRESS_REGNUM)
+
+
+/* Normal alignment required for function parameters on the stack, in bits.  All
+ * stack parameters receive at leaswt this much alignment regardless of data
+ * type. */
+#define        PARM_BOUNDARY   32
+
+/* Alignment of field after 'int : 0' in a structure. */
+#define        EMPTY_FIELD_BOUNDARY    32
+
+/* No data type wants to be aligned rounder than this. */
+#define        BIGGEST_ALIGNMENT       32
+
+/* The best alignment to use in cases where we have a choice. */
+#define        FASTEST_ALIGNMENT       32
+
+/* Every structures size must be a multiple of 32-bits. */
+#define        STRUCTURE_SIZE_BOUNDARY 32
+
+/* PCC_BITFIELD_TYPE_MATTERS -- define this if you wish to imitate the the way
+ * other C compilers handle alignment of bit-fields and the structures that
+ * contain them.
+ *
+ * The behavior is that the type written for a named bit-field (int, short, or
+ * other integer type) imposes an alignment for the entire structure, as if the
+ * structure really did contain an ordinary field of that type.  In addition,
+ * the bit-field is placed within the structure so that it would fit within
+ * such a field, not crossing a boundary for it.
+ *
+ * Thus, no most machines, a named bit-field whose type is written as int would
+ * not cross a four-byte boundary, and would force four-byte alignment for the
+ * whole structure.  (The alignment used may not be four bytes; it is controlled
+ * by other alignment parameters.)
+ *
+ * An unnamed bit-field will not affect the alignment of the containing
+ * structure.
+ *
+ * If thhe macro is defined, its definition should be a C expression, a non
+ * zero value for the expression enables this behavior.
+ * Look at the fundamental type that is used for a bit-field and use that to
+ * impose alignment on the enclosing structure.  struct s{int a:8}; should
+ * have the same alignment as 'int', not 'char'.
+ */
+#undef PCC_BITFIELD_TYPE_MATTERS
+#define        PCC_BITFIELD_TYPE_MATTERS       0
+
+/* MAX_FIXED_MODE_SIZE -- An integer expression for the size in bits of the
+ * largest integer machine mode that should actually be used.  All integer
+ * machine modes of this size and smaller can be used for structures and unions
+ * with the appropriate sizes.  If this macro is undefined,
+ * GET_MODE_BITSIZE(DImode) is assumed.
+ *
+ * ZipCPU -- The default looks good enough for us.
+ */
+
+/* Make strings word-aligned so strcpy from constants will be faster. */
+#define        CONSTANT_ALIGNMENT(EXP, ALIGN)  (((TREE_CODE(EXP)==STRING_CST)  \
+       && ((ALIGN) < FASTEST_ALIGNMENT)) ? FASTEST_ALIGNMENT : (ALIGN))
+
+/* Make arrays of chars word-aligned for the same reasons. */
+#define        DATA_ALIGNMENT(TYPE, ALIGN)     ((TREE_CODE(TYPE) == ARRAY_TYPE) \
+       && (TYPE_MODE(TREE_TYPE(TYPE)) == QImode)               \
+       && ((ALIGN < FASTEST_ALIGNMENT) ? FASTEST_ALIGNMENT : (ALIGN)))
+
+/* Generate Code for Profiling
+ */
+#define        FUNCTION_PROFILER(FILE,LABELNO)         (abort(), 0)
+
+
+/* A C expression which is nonzero if register number NUM is suitable for use
+ * as an index register in operand addresses.
+ */
+#define        REGNO_OK_FOR_INDEX_P(NUM)       0
+
+
+/* A C compound statement with a conditional 'goto LABEL;' executed if X
+ * (an RTX) is a legitimate memory address on the target machine for a memory
+ * operand of mode MODE.
+ */
+/* 17.03 Run-time Target Specification */
+
+/* TARGET_CPU_CPP_BUILTINS() ... This function-like macro expands to a block of
+ * code that defines built-in preprocessor macros and assertions for the target
+ * CPU, using the functions builtin_define, builtin_define_std, and
+ * builtin_assert.  When the front end calls this macro it provides a trailing
+ * semicolon, and since it has finished command line option proccessing your
+ * code can use those results freely.
+ *
+ * ZipCPU --- We should probably capture in this macro what capabilities the
+ * command line parameters we've been given indicate that our CPU has.  That
+ * way, code can be adjusted depending upon the CPU's capabilities.
+ */
+#define        TARGET_CPU_CPP_BUILTINS()                       \
+       { builtin_define("__ZIPCPU__");                 \
+       if (ZIP_FPU) builtin_define("__ZIPFPU__");      \
+       if (ZIP_ATOMIC) builtin_define("__ZIPATOMIC__");        \
+       }
+       // If (zip_param_has_fpu)  builtin_define("__ZIPFPU__");
+       // If (zip_param_has_div)  builtin_define("__ZIPDIV__");
+       // If (zip_param_has_mpy)  builtin_define("__ZIPMPY__");
+       // If (zip_param_has_lock) builtin_define("__ZIPLOCK__");
+       // If (zip_param_supervisor) builtin_define("__ZIPUREGS__");
+       // If (we support int64s) builtin_define("___int64_t_defined");
+
+/* TARGET_OS_CPP_BUILTINS() ... Similarly to TARGET_CPU_CPP_BUILTINS but this
+ * macro is optional and is used for the target operating system instead.
+ */
+
+/* Option macros: (we need to define these eventually ... )
+ *
+ *     TARGET_HANDLE_OPTION
+ *     TARGET_HANDLE_C_OPTION
+ *     TARGET_OBJ_CONSTRUCT_STRING_OBJECT
+ *     TARGET_OBJ_DECLARE_UNRESOLVED_CLASS_REFERENCE
+ *     TARGET_OBJ_DECLARE_CLASS_DEFINITION
+ *     TARGET_STRING_OBJECT_REF_TYPE_P
+ *     TARGET_CHECK_STRING_OBJECT_FORMAT_ARG
+ *     TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE(VOID)
+ *     C_COMMON_OVERRIDE_OTPTIONS
+ *     TARGET_OPTION_OPTIMIZATION_TABLE
+ *     TARGET_OPTION_INIT_STRUCT
+ *     TARGET_OPTION_DEFAULT_PARAMS
+ */
+
+/* SWITCHABLE_TARGET
+ *
+ * Zip CPU doesn't need this, so it defaults to zero.  No need to change it
+ * here.
+ */
+
+/* TARGET_FLOAT_EXCEPTIONS_ROUNDING_SUPPORTED_P(VOID) ... Returns true if the
+ * target supports IEEE 754 floating-point exceptions and rounding modes, false
+ * otherwise.  This is intended to relate to the float and double types, but not
+ * necessarily "long double".  By default, returns true if the adddf3
+ * instruction pattern is available and false otherwise, on the assumption that
+ * hardware floating point supports exceptions and rounding modes but software
+ * floating point does not.
+ *
+ * ZipCPU floating point is barely going to be functional, I doubt it will
+ * support all of these bells and whistles when full functionality is even
+ * achieved.  Therefore, we won't support these modes.  However, we can't just
+ * set this to zero, so let's come back to this.
+ */
+// #warning "Wrong answer encoded to date"
+// #undef      TARGET_FLOAT_EXCEPTIONS_ROUNDING_SUPPORTED_P
+// #define     TARGET_FLOAT_EXCEPTIONS_ROUNDING_SUPPORTED_P(X) 0
+
+/* 17.04 Defining data structures for per-function information */
+
+/* INIT_EXPANDERS ... Macro called to initialize any target specific
+ * information.  This macro is called once per function, before generation of
+ * any RTL has begun.  The intention is to allow the initialization of the
+ * function pointer init_machine_status.
+ */
+// #warning "I may need to define this to handle function return addresses ..."
+
+/* 17.05 Storage Layout */
+
+/* Storage Layout */
+#define        BITS_BIG_ENDIAN         0        // MSB has highest number
+#define        BYTES_BIG_ENDIAN        1       // 1 if MSB is lowest number
+#define        WORDS_BIG_ENDIAN        1       // 1 if MSW is lowest number
+#define        FLOAT_WORDS_BIG_ENDIAN  1
+#define        BITS_PER_WORD           32
+// #define     MAX_BITS_PER_WORD       // defaults to BITS_PER_WORD
+#define        UNITS_PER_WORD          1       // Storage units in a word, pwr of 2:1-8
+#define        MIN_UNITS_PER_WORD      1       // Default is UNITS_PER_WORD
+/* POINTER_SIZE ... Width of a pointer in bits.  You must specify a value no
+ * wider than the width of Pmode.  If it is not equal to the width of Pmode,
+ * you must define POINTERS_EXTEND_UNSIGNED. If you do not specify a value the
+ * default is BITS_PER_WORD.
+ *
+ * ZipCPU --- All of our pointers are 32-bits, the width of our address bus.
+ */
+#define        POINTER_SIZE            32      // Ptr width in bits
+/* POINTERS_EXTEND_UNSIGNED ... A C expression that determines how pointers
+ * should be extended from ptr_mode to either Pmode or word_mode.  It is greater
+ * than zero if pointers should be zero-extended, zero if they should be sign
+ * extended, and negative if some other conversion is needed.  In the last case,
+ * the extension is done by the target's ptr_extend instruction.
+ *
+ * You need not define this macro if the ptr_mode, Pmode, and word_mode are all
+ * the same width.
+ *
+ * ZipCPU --- While we shouldn't need this, QImode and HImode have the same
+ * number of bits as SImode.  Therefore, one might wish to convert between the
+ * two.  Hence, we specify how we would do that here.
+ */
+#define        POINTERS_EXTEND_UNSIGNED        0
+
+/* PROMOTE_MODE(m,unsignedp,type) ... A macro to update m and unsignedp when an
+ * object whose type is type and which has he specified mode and signedness is
+ * to be stored in a register.  This macro is only called when type is a scalar
+ * type.
+ *
+ * On most RISC machines, which only have operations that operate on a full
+ * register, define this macro to set m to word_mode if m is an integer mode
+ * narrower than BITS_PER_WORD.  In most cases, only integer modes should be
+ * widened because wider precision floating-point operations are usually more
+ * expensive than their narrower counterparts.
+ *
+ * For most machines, the macro definition does not change unsigndep.  However,
+ * some machines, have instructions that preferentially handle either signed or
+ * unsigned quantities of certain modes.  For example, on the DEC Alpha, 32-bit
+ * loads from memory and 32-bit add instructions sign-extend the result to
+ * 64-bits. On such machines, set unsignedp according to which kind of extension
+ * is more efficient.
+ *
+ * Do not define this macro if it would never modify m.
+ *
+ * ZipCPU --- We need to always (if possible) promote everything to SImode where
+ * we can handle things.  HImode and QImode just don't make sense on this CPU.
+ */
+#define        PROMOTE_MODE(M,U,T)     if ((GET_MODE_CLASS(M)==MODE_INT)&&(GET_MODE_SIZE(M)<2)) (M)=SImode;
+
+// TARGET_PROMOTE_FUNCTION_MODE
+/* PARM_BOUNDARY ... Normal alignment required for function parameters on the
+ * stack, in bits.  All stack parameters receive at least this much alignment
+ * regardless of data type.  On most machines, this is the same as the size of
+ * an integer.
+ */
+#define        PARM_BOUNDARY   32
+
+/* STACK_BOUNDARY ... Define this macro to the minimum alignment enforced by
+ * hardware for the stack pointer on this machine.  The definition is a C
+ * expression for the desired alignment (measured in bits).  This value is used
+ * as a default if PREFERRED_STACK_BOUNDARY is not defined.  On most machines,
+ * this should be the same as PARM_BOUNDARY.
+ */
+#define        STACK_BOUNDARY  PARM_BOUNDARY
+
+/* PREFERRED_STACK_BOUNDARY ... Define this ... */
+
+/* INCOMING_STACK_BOUNDARY
+ */
+
+/* FUNCTION_BOUNDARY ... Alignment required for a function entry point, in bits.
+ */
+#define        FUNCTION_BOUNDARY       32
+
+/* BIGGEST_ALIGNMENT ... Biggest alignment that any data type can require on
+ * this machine, in bits.  Note that this is not the biggest alignment that is
+ * supported, just the biggest alignment that, when violated, may cause a fault.
+ */
+#define BIGGEST_ALIGNMENT      32
+
+/* MINIMUM_ATOMIC_ALIGNMENT ... If defined, the smallest alignment, that can be
+ * given to an object that can be referenced in one operation, without
+ * disturbing any nearby object.  Normally, this is BITS_PER_UNIT, but may be
+ * larger on machines that don't have byte or halfword store operations.
+ */
+#define        MINIMUM_ATOMIC_ALIGNMENT        BITS_PER_UNIT
+
+/* STRICT_ALIGNMENT ... Set this nonzero if move instructions will actually
+ * fail to work when given unaligned data.  If instructions will merely go
+ * slower in that case, define this macro as 0.
+ */
+#define        STRICT_ALIGNMENT        1
+
+/* MAX_FIXED_MODE_SIZE ... An integer expression for the size in bits of the
+ * largest integer machine mode that should actually be used.  All integer
+ * machine modes of this size or smaller can be used for structures and unions
+ * with the appropriate sizes.  If this macro is undefined,
+ * GET_MODE_BITSIZE(DImode) is assumed.
+ *
+ * ZipCPU ... Get_MOD_BITSIZE(DImode) will be 64, and this is really not the
+ * size on bits of the largest integer machine mode.  However, that's the case
+ * with most DI implementations: A long is two words, spliced together.  We'd
+ * like to support that eventually, but we need to get there.  Hence, let's use
+ * compile time flag (ZIP_HAS_DI) that we can enable when we're ready.
+ */
+#if (ZIP_HAS_DI != 0)
+#define        MAX_FIXED_MODE_SIZE     64
+#else
+#define        MAX_FIXED_MODE_SIZE     32
+#endif
+
+
+/* 17.06 Layout of Source Language Data Types */
+
+#undef CHAR_TYPE_SIZE
+#undef SHORT_TYPE_SIZE
+#undef INT_TYPE_SIZE
+#undef LONG_TYPE_SIZE
+#undef LONG_LONG_TYPE_SIZE
+//
+#define        CHAR_TYPE_SIZE  32
+#define        SHORT_TYPE_SIZE 32
+#define        INT_TYPE_SIZE   32
+#define        LONG_TYPE_SIZE  32
+#define        LONG_LONG_TYPE_SIZE     64
+// BOOL_TYPE_SIZE defaults to CHAR_TYPE_SIZE
+#undef FLOAT_TYPE_SIZE
+#undef DOUBLE_TYPE_SIZE
+#undef LONG_DOUBLE_TYPE_SIZE
+#define        FLOAT_TYPE_SIZE         32
+#define        DOUBLE_TYPE_SIZE        FLOAT_TYPE_SIZE // Zip CPU doesn't support dbls
+#define        LONG_DOUBLE_TYPE_SIZE   64      // This'll need to be done via emulation
+// SHORT_FRAC_TYPE_SIZE
+// LONG_FFRACT_TYPE_SIZE
+// LONG_LONG_FRACT_TIME_SIZE
+#undef SHORT_ACCUM_TYPE_SIZE
+#undef ACCUM_TYPE_SIZE
+#undef LONG_ACCUM_TYPE_SIZE
+#define        SHORT_ACCUM_TYPE_SIZE   SHORT_TYPE_SIZE
+#define        ACCUM_TYPE_SIZE         INT_TYPE_SIZE
+#define        LONG_ACCUM_TYPE_SIZE    LONG_TYPE_SIZE
+
+/* LIBGCC2_GNU_PREFIX ... This macro corresponds to the TARGET_GNU_PREFIX target
+ * hook and should be defined if that hook is overriden to be true.  It causes
+ * function names in libgcc to be changed to use a __gnu_ prefix for their name
+ * rather than the default __.  A port which uses this macro should also arrange
+ * to use t-gnu-prefix in the libgcc config.host.
+ *
+ * ZipCPU -- I see no reason to define and therefore change this behavior.
+ */
+
+/* TARGET_FLT_EVAL_METHOD ... A C expression for the value for FLT_EVAL_METHOD
+ * in float.h,, assuming, if applicable, that the floating-point control word
+ * is in its default state.  If you do not define this macro the value of
+ * FLT_EVAL_METHOD will be zero.
+ *
+ * ZipCPU --- ???
+ */
+
+/* WIDEST_HARDWARE_FP_SIZE ... A C expression for the size in bits of the widest
+ * floating-point format supported by the hardware.  If you define this macro,
+ * you must specify a value less than or equal to the value of LONG_DOUBLE_...
+ * If you do not define this macro, the value of LONG_DOUBLE_TYPE_SIZE is the
+ * default.
+ *
+ * ZipCPU supports 32-bit IEEE floats--IF THE SUPPORT IS COMPILED IN!  This
+ * really needs to be determined, then, based upon a compile time parameter
+ * where the one compiling the code states whether or not the H/W even has
+ * floating point support.
+ *
+ * For now, we'll assume it does--but once we implement GCC parameters, we'll
+ * need to change this.
+ */
+#undef WIDEST_HARDWARE_FP_SIZE
+// #warning "Definition needs to change if no FPU present"
+#define        WIDEST_HARDWARE_FP_SIZE FLOAT_TYPE_SIZE
+
+/* DEFAULT_SIGNED_CHAR ... An expression whose value is 1 or 0, according to
+ * whether the type char should be signed or unsigned by default.  The user
+ * can always override this default with the options -fsigned-char and
+ * -funsigned-char.
+ *
+ * ZipCPU--let's go with the default behavior.
+ */
+#define        DEFAULT_SIGNED_CHAR     1
+
+/* TARGET_DEFAULT_SHORT_ENUMS(VOID) ... This target hook should return true if
+ * the compiler should give an enum type only as many bytes as it takes to
+ * represent the range of possible values of that type.  It should return
+ * false if all enum types should be allocated like int.
+ *
+ * The default is to return false.  This is what the ZipCPU needs, so we won't
+ * override it.
+ */
+
+/* SIZE_TYPE ... A C expression for a string describing the name of the data
+ * type to use for size values.  The typedef name size_t is defined using the
+ * contents of the string.
+ *
+ * If you don't define this macro, the default is "long unsigned int".  Since
+ * on the ZipCPU this is a 32-bit number, and all ZipCPU values are 32-bits,
+ * the default seems perfect for us.
+ */
+#define        SIZE_TYPE       "unsigned int"
+
+/* SIZETYPE ... GCC defines internal types () for expressions dealing with size.
+ * This macro is a C expression for a string describing the name of the data
+ * type from which the precision of sizetype is extracted.  The string has the
+ * same restrictions as SIZE_TYPE string.  If you don't define this macro, the
+ * default is SIZE_TYPE --- which seems good enough for us.
+ */
+
+/* PTRDIFF_TYPE ... A C expression for a string describing the name of the data
+ * type to use fo rthe result of subtracting two pointers.  The typedef name
+ * ptrdiff_t is defined using the contents of the string.  See SIZE_TYPE for
+ * more information.
+ *
+ * The default is "long int" which for the ZipCPU is 32-bits---still good enough
+ * for us.
+ */
+#define        PTRDIFF_TYPE    "int"
+
+/* WCHAR_TYPE ... A C expression for a string describing the name of the data
+ * type to use for wide characters.  The typedef name wchar_t is defined using
+ * the contents of  the string.  If you don't define this macro, the default is
+ * 'int'--good enough for ZipCPU.
+ */
+
+/* WCHAR_TYPE_SIZE ... A C expression for the size in bits of the data type for
+ * wide characters.  This is used in cpp, which cannot make use of WCHAR_TYPE.
+ */
+#undef WCHAR_TYPE_SIZE
+#define        WCHAR_TYPE_SIZE 32
+
+/* WINT_TYPE ... A C expression for a string describing the name of the data
+ * type to use for wide characters passed to printf and returned from getwc.
+ * The typedef name wint_t is defined using the contents of the string.  See
+ *
+ * ZipCPU -- If you don't define this macro, the default is "unsigned int"--also
+ * best for us again.
+ */
+
+/* INTMAX_TYPE ... A C expression for a string describing the name of the
+ * data type that can represent any value of any standard or extended signed
+ * integer type.  The typedef name intmax_t is defined using the contents of
+ * the string.
+ *
+ * If you don't define this macro, the default is the first of "int", "long int"
+ * or "long long int" that has as much precision as "long long int".
+ */
+
+/* UINTMAX_TYPE ... same as INTMAX_TYPE, but for unsigned
+ */
+
+#undef SIG_ATOMIC_TYPE
+#if (ZIP_ATOMIC != 0)
+#define        SIG_ATOMIC_TYPE "int"
+#else
+#define        SIG_ATOMIC_TYPE NULL    // We have no atomic types, but registers
+#endif
+#undef INT8_TYPE
+#define        INT8_TYPE               NULL    // We have no 8-bit integer type
+#undef INT16_TYPE
+#define        INT16_TYPE              NULL
+#undef INT32_TYPE
+#define        INT32_TYPE              "int"
+#undef UINT8_TYPE
+#define        UINT8_TYPE              NULL
+#undef UINT16_TYPE
+#define        UINT16_TYPE             NULL
+#undef UINT32_TYPE
+#define        UINT32_TYPE             "unsigned int"
+#undef INT_LEAST8_TYPE
+#define        INT_LEAST8_TYPE         "int"
+#undef INT_LEAST16_TYPE
+#define        INT_LEAST16_TYPE        "int"
+#undef INT_LEAST32_TYPE
+#define        INT_LEAST32_TYPE        "int"
+#undef UINT_LEAST8_TYPE
+#define        UINT_LEAST8_TYPE        "unsigned int"
+#undef UINT_LEAST16_TYPE
+#define        UINT_LEAST16_TYPE       "unsigned int"
+#undef UINT_LEAST32_TYPE
+#define        UINT_LEAST32_TYPE       "unsigned int"
+#undef INT_FAST8_TYPE
+#define        INT_FAST8_TYPE          "int"
+#undef INT_FAST16_TYPE
+#define        INT_FAST16_TYPE         "int"
+#undef INT_FAST32_TYPE
+#define        INT_FAST32_TYPE         "int"
+#undef UINT_FAST8_TYPE
+#define        UINT_FAST8_TYPE         "unsigned int"
+#undef UINT_FAST16_TYPE
+#define        UINT_FAST16_TYPE        "unsigned int"
+#undef UINT_FAST32_TYPE
+#define        UINT_FAST32_TYPE        "unsigned int"
+#undef INTPTR_TYPE
+#define        INTPTR_TYPE             "unsigned int"
+#undef UINTPTR_TYPE
+#define        UINTPTR_TYPE            "unsigned int"
+
+#undef INT64_TYPE
+#undef UINT64_TYPE
+#undef INT_LEAST64_TYPE
+#undef UINT_LEAST64_TYPE
+#undef INT_FAST64_TYPE
+#undef UINT_FAST64_TYPE
+
+#if (ZIP_HAS_DI != 0)
+#define        INT64_TYPE              "long int"
+#define        UINT64_TYPE             "long unsigned int"
+#define        INT_LEAST64_TYPE        "long int"
+#define        UINT_LEAST64_TYPE       "long unsigned int"
+#define        INT_FAST64_TYPE         "long int"
+#define        UINT_FAST64_TYPE        "long unsigned int"
+#else
+#define        INT64_TYPE              NULL
+#define        UINT64_TYPE             NULL
+#define        INT_LEAST64_TYPE        NULL
+#define        UINT_LEAST64_TYPE       NULL
+#define        INT_FAST64_TYPE         NULL
+#define        UINT_FAST64_TYPE        NULL
+#endif
+
+#define        TARGET_PTRMEMFUNC_VBI_LOCATION  ptrmemfunc_vbit_in_pfn
+
+
+/* 17.07 Register Usage / Register definitions */
+
+/* FIRST_PSEUDO_REGISTER ... Number of hardware registers known to the compiler.
+ * They receive numbers 0 through FIRST_PSEUDO_REGISTER-1; thus the first
+ * pseudo register's numbrer really is assigned the number
+ * FIRST_PSEUDO_REGISTER.
+ *
+ * ZipCPU---There are 16 registers in the ZipCPU, numbered 0-15 with the CC
+ * and PC register being numbered 14 and 15 respectively.  Therefore, the
+ * compiler can take register number 16 and above and do whatever it wants
+ * with it.
+ */
+#ifdef DEFINE_USER_REGS
+#  define      FIRST_PSEUDO_REGISTER   32
+#else
+#  ifdef       zip_FP_PSEUDO
+#    define    FIRST_PSEUDO_REGISTER   (zip_FP_PSEUDO+1)
+#  else
+#    define    FIRST_PSEUDO_REGISTER   16
+#  endif
+#endif
+
+/* FIXED_REGISTERS ... An initializer that says which registers are used for
+ * fixed purposes all throughout the compiled code and are therefore not
+ * available for general allocation.  These would include the stack pointer, the
+ * frame pointer (except on machines where that can be used as a general
+ * register when no frame pointer is needed), the program counter on machines
+ * where that is considered one of the addressable registers, and any other
+ * numbered register with a standard use.
+ *
+ * This information is expressed as a sequence of numbers, separated by commas,
+ * and surrounded by braces.  The nth number is 1 if register n is fixed, 0
+ * otherwise.
+ *
+ * For the Zip CPU, we have three fixed registers that are not available for
+ * general allocation:
+ *
+ *     SP      The stack pointer
+ *     CC      The condition codes and CPU state register
+ *     PC      The program counter
+ *
+ * Other registers, such as FP (the frame pointer) or GBL (the global offset
+ * table pointer) are registers that we hope will not be so fixed.
+ */
+#ifdef zip_FP_PSEUDO
+#  define      FIXED_REGISTERS         { 0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1 }
+#else
+#  define      FIXED_REGISTERS         { 0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1 }
+#endif
+
+/* CALL_USED_REGISTERS ... like FIXED_REGISTERS but has 1 for each register
+ * that is clobbered (in general) by function calls as well as for fixed
+ * registers.  This macro therefore identifies the registers that are not
+ * available for general allocation of values that must live across function
+ * calls.
+ *
+ * If a register has 0 in CALL_USED_REGISTERS, the compiler automatically saves
+ * it on function entry and restores it on function exit, if the register is
+ * used within the function.
+ *
+ * On the Zip CPU, we must save R0 (the return address), and (let's pick) any
+ * register above R5.
+ */
+#ifdef zip_FP_PSEUDO
+#  define      CALL_USED_REGISTERS     { 0,1,1,1,1,0,0,0,0,0,0,0,0,1,1,1,1 }
+#else
+#  define      CALL_USED_REGISTERS     { 0,1,1,1,1,0,0,0,0,0,0,0,0,1,1,1 }
+#endif
+
+/* CALL_REALLY_USED_REGISTERS ...  optional macro that, if not defined, defaults
+ * to the value of CALL_USED_REGISTERS.
+ */
+
+/* HARD_REGNO_CALL_PART_CLOBBERED(REGNO,MODE) ... A C expression that is nonzero
+ * if it is not permissible to store a value of mode MODE in hard register REGNO
+ * across a call without some part of it being clobbbered.  For most machines,
+ * this macro need not be defined.  It is only required for machines that do
+ * not preserve the entire contents of a register across a call.
+ *
+ * In the Zip CPU, we clobber R0 with our return address during a call, so let's
+ * make sure this gets included here.
+ */
+#define        HARD_REGNO_CALL_PART_CLOBBERED(REGNO,MODE)      (REGNO==0)
+
+/* TARGET_CONDITIONAL_REGISTER_USAGE(VOID) ... This hook may conditionally
+ * modify five variables fixed_regs, call_used_regs, global_regs, reg_names, and
+ * reg_class_contents, to take into account any dependence of these register
+ * sets on target flags.  The first three of these are of type char[]
+ * (interpreted as Boolean vectors).  global_regs is a const char *[] and
+ * reg_class_contents is a HARD_REG_SET.  Before the macro is called,
+ * fixed_regs, call_used_regs, reg_class_contents, and reg_names have been
+ * initialized from FIXED_REGISTERS, CALL_USED_REGISTERS, REG_CLASS_CONTENTS,
+ * and REGISTER_NAMES, respectively.  global_regs has been cleared, and any
+ * -ffixed-reg, -fcall-used-reg, and -fcall-saved-reg command options have been
+ * applied.
+ *
+ * ZipCPU -- I may need to return and define this depending upon how FP and
+ * GBL register allocation go.  But for now, we'll leave this at its default
+ * value.
+ */
+// #warning "Revisit me after FP and GBL allocation"
+
+/* INCOMING_REGNO(out) ... Define this macro if the target machine has register
+ * windows. ...
+ *
+ * Zip CPU has no register windows.
+ */
+
+/* OUTGOING_REGNO ... same thing.
+ */
+
+/* LOCAL_REGNO ... same thing.
+ */
+
+/* PC_REGNUM ... If the program counter has a register number, define this as
+ * that register number.  Otherwise do not define it.
+ */
+#define        PC_REGNUM       zip_PC
+
+
+/* REG_ALLOC_ORDER ... If defined, an initializer for a vector of integers,
+ * containing the number of hard registers in the order in which GCC should
+ * prefer to use them (from most preferred to least.
+ *
+ * If this macro is not defined, registers are used lowest numbered first (all
+ * else being equal).
+ *
+ * Since the default is the ZipCPU desired case, we won't define this here.
+ */
+
+/* ADJUST_REG_ALLOC_ORDER ... on most machines it is not necessary to define
+ * this macro, so we won't either.
+ */
+
+/* HONOR_REG_ALLOC_ORDER ...
+ */
+
+/* HONOR_REG_ALLOC_ORDER ... on most machines it is not necessary to define
+ * this macro, so we won't either.
+ */
+
+/* HARD_REGNO_NREGS(REGNO, MODE) ... A C expression for the number of
+ * consecutive hard registers, starting at register number REGNO, required to
+ * hold a value of mode MODE.
+ *
+ * On a machine where all registers are exactly one word, a suitable definition
+ * is given of ((GET_MODE_SIZE(MODE)+UNITS_PER_WORD-1)/UNITS_PER_WORD.
+ *
+ * On ZipCPU, we might do
+ *     ((((MODE)==DImode)||((MODE)==DFmode))?2:1)
+ * but I think the default (above) code should work as well.  Hence, let's stick
+ * with the default, lest someone try to create larger modes (TImode, OImode,
+ * XImode) and expect us to follow them properly some how.
+ *
+ * Okay, now in hind sight, we know that the default doesn't work for our
+ * architecture, since GET_MODE_SIZE(SImode)=4, not 1.  Thus, let's rearrange
+ * this expression to work in bits rather than in bytes and we'll know more
+ * of what we are doing.
+ */
+#undef HARD_REGNO_NREGS
+#define        HARD_REGNO_NREGS(REGNO, MODE)   ((GET_MODE_SIZE(MODE)+UNITS_PER_WORD-1)\
+               / (UNITS_PER_WORD))
+
+/* HARD_REGNO_NREGS_HAS_PADDING(REGNO,MODE) ... A C expression that is nonzero
+ * if a value of mode MODE, stored in memory, ends with padding that causes it
+ * to take up more space than in registers starting at register number REGNO
+ * (as determined by multiplying GCC's notion of the size of the register when
+ * containing this mode by the number of registers returned by HARD_REGNO_NREGS)
+ * By default this is zero.
+ *
+ * Zip CPU --- The default looks good enough to me.
+ */
+
+/* HARD_REGNO_NREGS_WITH_PADDING(REGNO, MODE)
+ *
+ * ZipCPU ---
+ */
+
+/* REGMODE_NATURAL_SIZE(MODE) -- Define this macro if the natural size of
+ * registers that hold values of mode mode is not the word size.  It is a C
+ * expression that should give the natural size in bytes for the specified mode.
+ * It is used by the register allocator to try to optimize its results.
+ *
+ * ZipCPU ---
+ */
+// #define     REGMODE_NATURAL_SIZE(MODE)      (((MODE)==DImode)?2:1)
+
+/* HARD_REGNO_MODE_OK ... A C expression that is nonzero if it is permissible
+ * to store a value of mode MODE in a hard register number REGNO (or in several
+ * registers starting with that one).  For a machine where all registers are
+ * equivalent, a suitable definition is '1'.  You need not include code to check
+ * for the numbers of fixed registers, because the allocation mechanism
+ * considered them to be always occupied.
+ *
+ * ZipCPU --- As long as you are already avoiding the fixed registers, the
+ * suitable default definition mentioned above should be sufficient.
+ */
+#undef HARD_REGNO_MODE_OK
+#define        HARD_REGNO_MODE_OK(R,M) (R<zip_CC)
+
+/* HARD_REGNO_RENAME_OK(FROM,TO) ... A C expression that is nonzero if it is
+ * okay to rename a hard register FROM to another hard register TO.  One common
+ * use of this macro is to prevernt renaming of a register to another register
+ * that is not saved by a prologue in an interrupt handler.  The default is
+ * always nonzero.
+ *
+ * ZipCPU --- The default looks good enough to us.
+ */
+#undef HARD_REGNO_RENAME_OK
+#define        HARD_REGNO_RENAME_OK(FROM,TO)   ((is_ZIP_GENERAL_REG(FROM))&&(is_ZIP_GENERAL_REG(TO)))
+
+
+/* MODES_TIABLE_P(M1, M2) ... A C expression that is nonzero if a value of mode
+ * M1 is accessible in mode M2 without copying.
+ *
+ * ZipCPU --- well, that's true for us (although we support scant few modes) ...
+ * so lets' set to one.
+ */
+#define        MODES_TIEABLE_P(M1,M2)  1
+
+/* TARGET_HARD_REGNO_SCRATCH_OK(REGNO)
+ * This target hook should return true if it is OK to use a hard register
+ * REGNO has a scratch register in peephole2.  One common use of this macro is
+ * to prevent using of a register that is not saved by a prologue in an
+ * interrupt handler.  The default version of this hook always returns true.
+ *
+ * ZipCPU --- the default works for us as well.  If you are in an interrupt
+ * context, you have an entirely new set of registers (the supervisor set), so
+ * this is a non-issue.
+ */
+
+/* AVOID_CCMODE_COPIES ... define this macro if the compiler should avoid
+ * copies to/from CCmode register(s).  You should only define this macro if
+ * support for copying to/from CCmode is incomplete.
+ *
+ * ZipCPU --- CCmode register copies work like any other, so we'll keep with the
+ * default definition.
+ */
+
+/* STACK_REGS ... Define this if the machine has any stack-like registers.
+ *
+ * Zip CPU has no stack-like registers, as their definition is different from
+ * the ZipCPU stack pointer register.
+ */
+
+#define        ZIP_REG_BYTE_SIZE       1
+
+/* 17.08 Register Classes */
+
+/* enum reg_class ... An enumerate type that must be defined with all the
+ * register class names as enumerated values.  NO_REGS must be first.  ALL_REGS
+ * must be the last register class, followed by one more enumerated value,
+ * LIM_REG_CLASSES, which is not a register class but rather tells how many
+ * classes there are.
+ *
+ * ZipCPU --- We'll defined register 0-13 as general registers, 14-15 in
+ * all_regs, and go from there.
+ */
+enum   reg_class {
+       NO_REGS, GENERAL_REGS,
+#ifdef DEFINE_USER_REGS
+       USER_REGS,
+#endif
+       ALL_REGS, LIM_REG_CLASSES
+};
+
+/* N_REG_CLASSES ... the number of distinct register classes, defined as follows
+ */
+#define        N_REG_CLASSES   (int)LIM_REG_CLASSES
+
+/* REG_CLASS_NAMES ... An initializer containing the names of the register
+ * classes as C string constants.  These names are used in writing some of the
+ * debugging dumps.
+ */
+#define        REG_CLASS_NAMES { "NO_REGS", "GENERAL_REGS", "ALL_REGS" }
+
+/* REG_CLASS_CONTENTS ... An initializer containing the contents of the register
+ * classes, as integerss which are bit masks.  The nth integer specifies the
+ * contents of class n.  That way the integer mask is interpreted as that
+ * register r is in the class if (mask&(1<<r)) is 1.
+ *
+ * When the machine has more than 32 registers ... that's not us.
+ *
+ * ZipCPU --- This is straight forward, three register classes, etc.
+ */
+#ifdef zip_FP_PSEUDO
+#define        REG_CLASS_CONTENTS { { 0x00000}, {0x13fff}, {0x1ffff} }
+#else
+#define        REG_CLASS_CONTENTS { { 0x00000}, {0x03fff}, {0x0ffff} }
+#endif
+
+#ifdef DEFINE_USER_REGS
+#define        REG_CLASS_NAMES { "NO_REGS", "GENERAL_REGS", "USER_REGS", "ALL_REGS" }
+#define        REG_CLASS_CONTENTS { { 0x00000},{0x03fff},{0x0ffff0000},{0x0ffffffff} }
+#define        FIXED_REGISTERS         { 0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,  1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 }
+#define        CALL_USED_REGISTERS     { 0,1,1,1,1,0,0,0,0,0,0,0,0,1,1,1,  1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 }
+#endif
+
+/* REGNO_REG_CLASS ... A C expression whose value is a register class
+ * containing hard register REGNO.  In general there is more than one such
+ * class;  Choose a class which is minimal, meaning that no smaller class also
+ * contains the register.
+ */
+#undef REGNO_REG_CLASS
+#ifdef zip_FP_PSEUDO
+#define        REGNO_REG_CLASS(R)      (is_ZIP_REG(R)?((((R)<=13)||((R)==zip_FP_PSEUDO))?GENERAL_REGS:ALL_REGS):NO_REGS)
+#else
+#define        REGNO_REG_CLASS(R)      (is_ZIP_REG(R)?((R<=13)?GENERAL_REGS:ALL_REGS):NO_REGS)
+#endif
+
+/* BASE_REG_CLASS ... A macro whose definition is the name of the class to which
+ * a valid base register must belong.  A base register is one used in an address
+ * which is the register value plus a displacement.
+ */
+#undef BASE_REG_CLASS
+#define        BASE_REG_CLASS  GENERAL_REGS
+
+/* MODE_BASE_CLASS(MODE) ... This is a variation of the BASE_REG_CLASS macro
+ * which allows the selection of a bse register in a mode dependent manner.  If
+ * mode is VOIDmode then it should return the same value as BASE_REG_CLASS.
+ */
+#undef MODE_BASE_CLASS
+#define        MODE_BASE_CLASS(MODE)   GENERAL_REGS
+
+/* MODE_BASE_REG_REG_CLASS(MODE) ... A C expression whose value is the register
+ * class to which a valid base register must belong in order to be used in a
+ * base plus index register address.  You should define this macro if base plus
+ * index addresses have different requirements than other base register uses.
+ *
+ * Zip CPU does not support the base plus index addressing mode, thus ...
+ */
+#undef MODE_BASE_REG_REG_CLASS
+#define        MODE_BASE_REG_REG_CLASS(MODE)   NO_REGS
+
+/* INDEX_REG_CLASS ... A macro whose definition is the name of the class to
+ * which a valid index register must belong.  An index register is one used in
+ * an address where its value is either multiplied by a scale factor or added
+ * to another register (as well as added to a displacement).
+ *
+ * ZipCPU -- Has no index registers.
+ */
+#undef INDEX_REG_CLASS
+#define        INDEX_REG_CLASS NO_REGS
+
+/* REGNO_OK_FOR_BASE_P(NUM) ... A C expression which is nonzero if register
+ * number num is suitable for use as a base register in operand addresses.
+ */
+#undef REGNO_OK_FOR_BASE_P
+#ifdef DEFINE_USER_REGS
+# define REGNO_OK_FOR_BASE_P(NUM)      ((NUM != zip_CC)&&(NUM < 16))
+#else
+# define REGNO_OK_FOR_BASE_P(NUM)      (NUM != zip_CC)
+#endif
+
+/* REGNO_MODE_OK_FOR_BASE_P ... A C expressison that is just like
+ * REGNO_OK_FOR_BASE_P, except that that expression may examine the mode of the
+ * memory refgerence in MODE.  You should define this macro if the mode of the
+ * memory reference affects whether a register may be used as a base register.
+ *
+ * ZipCPU --- the mode doesn't affect anything, so we don't define this.
+ */
+
+/* REGNO_MODE_OK_FOR_REG_BASE_P(NUM, MODE) ... base plus index operand
+ * addresses, accessing memory in mode mode.
+ *
+ * Use of this macro is deprecated.
+ */
+
+/* REGNO_MODE_CODE_OK_FRO_BASE_P(N,M,AS,OC,IC) ... A C expression which is
+ * nonzero if a register number N is suitable for use as a base register in
+ * operand addresses, accessing memory in mode M in address space AS.  This is
+ * similar to REGNO_MODE_OK_FOR_BASE_P, except that the expression may examine
+ * the context in which the register appears in the memory reference.
+ *
+ * ZipCPU---We aren't specific in how we use our registers.
+ */
+#define        REGNO_MODE_CODE_OK_FOR_BASE_P(N,M,AS,OC,IC) REGNO_OK_FOR_BASE_P(N)
+
+/* REGNO_OK_FOR_INDEX_P(REGNO) ... A C expression which is nonzero if register
+ * num is suitable for use as an index register in opernad addressess.  It may
+ * be either a suitable hard register or a pseudo register that has been
+ * allocated usch as a hard register.
+ *
+ * ZipCPU has no index registers, therefore we declare this to be zero.
+ */
+#undef REGNO_OK_FOR_INDEX_P
+#define        REGNO_OK_FOR_INDEX_P(REGNO)     0
+
+/* TARGET_PREFERRED_RENAME_CLASS(RCLASS) ... A target hook that places
+ * additional preference on the register class to use when it is necessary to
+ * rename a register in class RCLASS to another class, or perhaps NO_REGS, if no
+ * preferred register class is found or hook preferred_rename_class is not
+ * implemented.  SOmething returning a more restrictive class makes better code.
+ * For example, on ARM, thumb-2 instructions using LO_REGS may be smaller than
+ * instructions using GENERIC_REGS.  By returning LO_REGS from
+ * preferred_rename_class, code size can be reduced.
+ */
+// #undef TARGET_PREFERRED_RENAME_CLASS
+// #define     TARGET_PREFERRED_RENAME_CLASS(RCLASS)   RCLASS
+
+/* TARGET_PREFERRED_RELOAD_CLASS(X,RC) ... A target hook that places additional
+ * restri tions on the register class to use when it is necessary to copy value
+ * X into a register in class RC.  The value is a register class; rehaps RC, or
+ * perhaps a smaller class.
+ *
+ * The default fversion of this hook always returns value of RC argument, which
+ * sounds quite appropriate for the ZipCPU.
+ */
+
+/* PREFERRED_RELOAD_CLASS(X,CLASS) ... A C expression that places additional
+ * restrictions on the register class to use when it is necessary to copy
+ * value X into a register in class CLASS.  On many machines, the following
+ * definition is safe: PREFERRED_RELOAD_CLASS(X,CLASS) (CLASS)
+ * Sometimes returning a more restrictive class makes better code.  For example,
+ * on the 68k, when x is an integer constant that is in range for a moveq
+ * instruction, the value of this macro is always DATA_REGS as long as CLASS
+ * includes the data registers.  Requiring a Ddata register guarantees that a
+ * 'moveq' will be used.
+ *
+ * ZipCPU --- you can't load certain values into all members of ALL_REGS.  For
+ * example, loading (sleep and !gie) into the CC register could halt the CPU.
+ * Hence, we only allow loads into the GENERAL_REG class.
+ */
+#define        PREFERRED_RELOAD_CLASS(X, CLASS)        GENERAL_REGS
+
+/* TARGET_PREFERRED_OUTPUT_RELOAD_CLASS(RTX,RCLASS) ... Like TARGET_PREFERRED_..
+ * RELOAD_CLASS, but for output instead of input reloads.
+ *
+ * ZipCPU --- there's gotta be a valid default behaviour for this.
+ */
+
+/* LIMIT_RELOAD_CLASS(MODE, CL) ...
+ *
+ * Don't define this macro unless the target machine has limitations which
+ * require the macro to do something nontrivial.  ZipCPU doesn't, so we won't.
+ */
+
+/* TARGET_SECONDARY_RELOAD
+ * SECONDARY_ ...
+ * Don't think we need these ...
+ */
+
+/* CLASS_MAX_NREGS(CLASS,MODE) ... A C expression for the maximum number of
+ * consecutive registers of class CLASS needed to hold a value of mode MODE.
+ *
+ * This is closely related to the macro HARD_REGNO_NREGS.  In fact, the value
+ * of the macro CLASS_MAX_REGS(CL,M) should be the maximum value of
+ * HARD_REGNO_NREGS(REGNO,MODE) for all REGNO values in the class CLASS.
+ *
+ * This macro helps control the handling of multiple word values in the reload
+ * pass.
+ *
+ * ZipCPU --- We'll just use HARDNO_REGNO_NREGS, since CLASS is independent for
+ * us.  We'll also choose register R0, since ... well, since it simply doesn't
+ * matter.  (HARD_REGNO_NREGS ignores this anyway)
+ */
+#define        CLASS_MAX_NREGS(CLASS, MODE)    HARD_REGNO_NREGS(0,MODE)
+
+/* CANNOT_CHANGE_MODE_CLASS
+ * ???
+ */
+
+/* TARGET_IRA_CHANGE_PSEUDO_ALLOCNO_CLASS
+ */
+
+/* TARRGET_LRA_P
+ * Default looks good.
+ */
+
+/* TARGET_REGISTER_PRIORITY(INT) ... A target hook which returns the register
+ * priority number to which the register HARD_REGNO belongs to.  THe bigger the
+ * number
+ *
+ * The default version of this target hook returns always zero---good enough for
+ * the ZipCPU.
+ */
+
+/* TARGET_REGISTER_USAGE_LEVELING_P(VOID) ... A target hook which returns true
+ * if we need register usage leveling.  That means if a few hard registers are
+ * equally good for the assignment, we choose the least used hard register.  The
+ * register usage leveling may be profitable for some targets.  Don't use usage
+ * leveling for targets with conditional execution or targets with big register
+ * files as it hurts if-conversion and cross-jumping optimizations.  The default
+ * version of this target hook returns always false.
+ *
+ * ZipCPU --- Default is the right answer.
+ */
+
+/* TARGET_DIFFERENT_ADDR_DISPLACEMENT_P ...
+ * Default looks good.
+ */
+
+/* TARGET_CANNOT_SUBSTITUTE_MEM_EQUIV_P ...
+ * Default looks good.
+ */
+
+/* TARGET_LEGITIMIZE_ADDRESS_DISPLACEMENT ....
+ */
+
+/* TARGET_SPILL_CLASS
+ *
+ * ZipCPU --- If we were running in supervisor mode only, this might be the
+ * user set of registers.  However, we're not building for that mode (now),
+ * so we'll leave this at the default of NO_REGS.
+ */
+
+/* TARGET_CSTORE_MODE(ICODE) ... Defines the machine mode to use for the
+ * boolean result of conditional store patterns.  The OCIDE argument is the
+ * instruction code for the cstore being performed.  Not defining this hook is
+ * the same as accepting the mode encoded into operand 0 of the cstore expander
+ * patterns.
+ *
+ * ??? ZipCPU --- I don't follow this documentation.  We'll leave this at the
+ * default therefore.
+ */
+
+/* 17.09 Stack Layout and Calling Conventions */
+
+
+/* STACK_GROWS_DOWNWARD ... Define this macro if pushing a word onto the stack
+ * moves the stack pointer to a smaller address, and false otherwise.
+ *
+ * ZipCPU ... well, our stack does grow downward, but it doesn't do so auto-
+ * magically.  We have to move the stack pointer ourselves.  However, since this
+ * is our convention, we'll define it as such.
+ */
+#undef STACK_GROWS_DOWNWARD
+#define        STACK_GROWS_DOWNWARD    1
+
+/* STACK_PUSH_CODE ... This macro defines the operation used when something is
+ * pushed on the stack.  In RTL, a push operation will be
+ * (set (mem( STACK_PUSH_CODE(reg sp))) ...) The choiecs are PRE_DEC, POST_DEC,
+ * PRE_INC, and POST_INC.  Which of these is correct depends on the stack
+ * direction and on whether the stack pointer points to the last item on the
+ * stack or whether it points to the space for the next item on the stack.
+ * The default is PRE_DECC when STACK_GROWS_DOWNWARD is true, which is almost
+ * always right, and PRE_INC otherwise, which is often wrong.
+ *
+ * ZipCPU --- None of these is right, so let's leave this at the default and
+ * see how badly we get mangled.  In particular, ZipCPU doesn't have any of the
+ * PRE_DEC, POST_DEC, PRE_INC, or POST_INC addressing modes used here.
+ */
+
+/* FRAME_GROWS_DOWNWARD ... Define this macro to nonzero if the addresses of
+ * local variable slots are at negative offsets from the frame pointer.
+ *
+ * ZipCPU --- If the frame pointer is defined as the stack pointer upon the
+ * start of function execution, and that stack pointer grows downward, then
+ * this should be the case as well.
+ */
+#undef FRAME_GROWS_DOWNWARD
+#define        FRAME_GROWS_DOWNWARD    1
+// #define     FRAME_GROWS_DOWNWARD    0        // This was ECO32's value
+
+
+/* ARGS_GROW_DOWNWARD ... Define this macro if successive arguments to a
+ * function occupy decreasing addresses on the stack.
+ *
+ * ZipCPU -- we can leave this up to the compiler's preferred implementation,
+ * it is of no consequence to the hardware.
+ */
+
+/* STARTING_FRAME_OFFSET ... Offset from the frame pointer to the first local
+ * variable slot to be allocated.  If FRAME_GROWS_DOWNWARD, find the next slot's
+ * offset by subtracting the firstt slot's length from STARTING_FRAME_OFFSET.
+ * Otherwise it is found by adding the length of the first slot to the value
+ * START_FRAME_OFFSET.
+ *
+ * ZipCPU --- I'm not certain on this, let's come back after we look at how
+ * the code is getting generated.  However, the ECO32 code I am copying from
+ * suggests that 0 is the right value, so we'll use that here.
+ */
+// #warning "Re-evaluate me"
+#define        STARTING_FRAME_OFFSET   0
+
+/* STACK_ALIGNMENT_NEEDED ... Define to zero to disable final alignment of the
+ * stack during reload.  The nonzero default for this macro is suitable for most
+ * ports.
+ *
+ * ZipCPU --- we'll leave this at the default, although if any alignment code
+ * shows up on the stack we may need to adjust it.
+ */
+
+/* STACK_POINTER_OFFSET ... Offset from the SP register to the first location at
+ * which outgoing arguments are placed.  If not specified, the default value
+ * of zero is used.  This is the proper value for most machines.
+ */
+#define        STACK_POINTER_OFFSET    0
+
+/* FIRST_PARM_OFFSET ... Offset from the argument pointer register to the first
+ * argument's address.  On some machines it may depend on the data type of the
+ * function.
+ */
+#define        FIRST_PARM_OFFSET(F)    0
+
+/* STACK_DYNAMIC_OFFSET(F) ... Offset from the stack pointer register to an item
+ * dynamically allocated on the stack, e.g., by alloca.  The default value for
+ * this macro is STACK_POINTER_OFFSET plus the length of the outgoing arguments.
+ * The default is correct for most machines, ...
+ *
+ * ZipCPU --- so we'll use it for the ZipCPU.
+ */
+
+/* INITIAL_FRAME_ADDRESS_RTX ... A C expression whose value is RTL representing
+ * the address of the initial stack frame.  This address is passed to
+ * RETURN_ADDR_RTX and DYNAMIC_CHAIN_ADDRESS.  If you don't define this macro,
+ * a reasonable default value will be used.  Define this macro in order to make
+ * frame pointer elimination work in the presence of __builtin_frame_address(C)
+ * and __builtin_return_address(C) for (C) not equal to zero.
+ *
+ * ZipCPU --- Let's try the reasonable default and see what happens.
+ */
+
+/* SETUP_FRAME_ADDRESSES ... A C expression that produces the machine-specific
+ * code to setup the stack so that arbitrary frames can be accessed.  For
+ * example, on the SPARC, we must flush all of the register windows to the stack
+ * before we can access arbitrary stack frames.  You will seldom need to define
+ * this macro.  The default is to do nothing.
+ *
+ * ZipCPU --- which is what we shall do here.
+ */
+
+/* TARGET_BUILTIN_SETJMP_FRAME_VALUE(VOID) ... This target hook should return
+ * an RTX that is used to store the address of the current frame into the
+ * builtin setjmp buffer.  The default value, virtual_stack_vars_rtx, is correct
+ * for most machines.  One reason you may need to define this target hook is if
+ * hard_frame_pointer_rtx is the appropriate value on your machine.
+ *
+ * ZipCPU --- leave this undefined, since the default value should be correct
+ * for "most" machines.
+ */
+
+/* FRAME_ADDR_RTX ... most machines do not need to define it.
+ */
+
+/* RETURN_ADDR_RTX(COUNT,FRAMEADDR) ... A C expression whose value is RTL
+ * representing the value of the return address for the frame COUNT steps up
+ * from the current frame, after the prologue.  FRAMEADDR is the frame pointer
+ * of the COUNT frame, or the frame pointer of the COUNT-1 frame if
+ * RETURN_ADDR_IN_PREVIOUS_FRAME is nonzero.  The value of the expression must
+ * always be the correct address when COUNT is nonzero, but may be NULL_RTX if
+ * there is no way to determine the return address of other frames.
+ *
+ * ZipCPU --- I have no idea how we'd do this, so let's just return NULL_RTX.
+ */
+#undef RETURN_ADDR_RTX
+#define        RETURN_ADDR_RTX(COUNT,FRAMEADDR)        NULL_RTX
+
+/* RETURN_ADDR_IN_PREVIOUS_FRAME ... Define this macro to nonzero value if the
+ * return address of a particular stack frame is accessed from the frame pointer
+ * of the previous stack frame.  The zero default for this macro is suitable
+ * for most ports.
+ *
+ * ZipCPU---Default works here as well.
+ */
+
+/* INCOMING_RETURN_ADDR_RTX ... A C expression whose value is RTL representing
+ * the location of the incoming return address at the beginning of any function,
+ * before the prologue.  This RTL is either a REG, indicating that the return
+ * value is saved in 'REG', or a MEM representing the location in the stack.
+ * If this RTL is a REG, you should define DWARF_RETURN_COLUMN to
+ * DWARF_FRAME_REGNUM(REGNO).
+ *
+ * ZipCPU --- While our incoming return address could theoretically be in any
+ * register, our machine description file is going to place it into register
+ * R0, so that's what we return here.
+ */
+#undef INCOMING_RETURN_ADDR_RTX
+#define        INCOMING_RETURN_ADDR_RTX        gen_rtx_REG(SImode, zip_R0)
+
+
+/* DWARF_ALT_FRAME_RETURN_COLUMN
+ */
+
+/* DWARF_ZERO_REG ... A C exrpession whose value is an integer giving a DWARF2
+ * register number that is considered to always have the value zero.  This
+ * should only be defined if the target has an architected zero register (ZipCPU
+ * does not), and someone decided it was a good idea to use that register number
+ * to terminate the stack backtrace.  New ports should avoid this (so the
+ * ZipCPU port will avoid it as well).
+ *
+ */
+
+/* TARGET_DWARF_HANDLE_FRAME_UNSPEC
+ */
+
+/* INCOMING_FRAME_SP_OFFSET
+ */
+#define        INCOMING_FRAME_SP_OFFSET        0
+
+/* ARG_POINTER_CFA_OFFSET
+ */
+
+/* FRAME_POINTER_CFA_OFFSET
+ */
+
+/* CFA_FRAME_BASE_OFFSET
+ */
+
+/* 17.09.02 Exception handling support */
+
+/* EH_RETURN_DATA_REGNO(N) ... A C expression whose value is the Nth register
+ * number used for data by exception handlers, or INVALID_REGNUM if fewer than
+ * N registers are usable.  The exception handling library routines communicate
+ * with the exception handlers via a set of agreed upon registers.  Ideally
+ * these registers should be call clobbered; it is possible to use call-saved
+ * registers, but may negatively impact code size.  The target must support at
+ * least 2 data registers, but should define 4 if their are enough free
+ * registers.
+ *
+ * You must define this macro if you want to support call frame exception
+ * handling like that provided by DWARF 2.
+ */
+#define        EH_RETURN_DATA_REGNO(N) (((N<ZIP_FIRST_ARG_REGNO)||(N>ZIP_LAST_ARG_REGNO))?(N-1):INVALID_REGNUM)
+
+/* EH_RETURN_STACKADJ_RTX ... A C expression whose value is RTL representing
+ * a location in which to store a stack adjustment to be applied before function
+ * return.  This is used to unwind the stack to an exception handler's call
+ * frame.  It will be assigned zero on code paths that return normally.
+ *
+ * Do not define this macro if the stack pointer is saved and restored by the
+ * regular prolog and epilog code in the call frame itself (which it is for the
+ * ZipCPU); in this case, the exception handling library routines will update
+ * the stack location to be restored in place.  Otherwise, you must define this
+ * macro if you want to support call frame exception handling like that provided
+ * by DWARF 2.
+ *
+ */
+
+/* EH_RETURN_HANDLER_RTX ... A C expression whose value is RTL representing a
+ * location in which to store the address of an exception handler to which we
+ * should return.  It will not be assigned on code paths that return normally.
+ *
+ * Typcally this is the location in the call frame at which the normal return
+ * address is stored.  For targets that return by popping an address of the
+ * stack, this might be a memory address just below the target callf rame
+ * rather than inside the current call frame.  If defined,
+ * EH_RETURN_STACKADJ_RTX will have already been assigned, so it may be used
+ * to calculate the location of the target call frame.
+ *
+ * If you want to support call frame exception handling, you must define either
+ * this macro or the eh_return instruction pattern.
+ */
+// #warning "I don't know what to do here."
+
+/*
+ *
+ *
+ *
+ *   REST OF SECTION SKIPPED ...
+ *
+ *
+ *
+ */
+
+/* 17.09.03 Specifying how stack checking is done */
+
+/* STACK_CHECK_BUILTIN ... a non-zero value if stack checking is done by the
+ * configuration files in a machine-dependent manner.  You should define this
+ * macro if stack checking is required by the ABI of your machine or if you
+ * would like to do stack checking in some more efficient way than the generic
+ * appraoch.  The default value of this macro is zero.
+ *
+ * ZipCPU --- The default makes sense for us.
+ */
+// #define STACK_CHECK_BUILTIN 0
+
+/* STACK_CHECK_STATIC_BUILTIN ... A nonzero value if static stack checking is
+ * done by the configuration files in a machine-dependent manner.  You should
+ * define this macro if you would like to do static stack checking in some more
+ * efficient way than the generic approach.  The default value of this macro
+ * is zero.
+ *
+ * ZipCPU --- The default makes sense for us.
+ */
+
+/* STACK_CHECK_PROBE_INTERVAL_EXP ...  An integer specifying the interval at
+ * which GCC must generate stack probe instructions, defined as 2 raised to this
+ * interval.  You will normally define this macro so that the interval is no
+ * larger than the size of the "guard pages" at the end of a stack area.  The
+ * default value of 12 (4096-byte interval) is suitable for most systems.
+ *
+ * ZipCPU --- Default.
+ */
+
+/* STACK_CHECK_MOVING_SP ... An integer which is non-zero if GCC should move
+ * the stack pointer page by page when doing probes.  This can be necessary
+ * on systems where the stack pointer contains the bottom address of the memory
+ * area accessible to the executing thread at any point in time.  In this
+ * situation, an alternate signal stack is required in order to be able to
+ * recover from a stack overflow.  The default value of this macro is zero.
+ *
+ * ZipCPU -- Default.
+ */
+
+/* STACK_CHECK_PROTECT
+ */
+/* STACK_CHECK_MAX_FRAME_SIZE
+ * ... you should normally not change the default value of this macro.
+ */
+/* STACK_CHECK_FIXED_FRAME_SIZE
+ * ... you ... will normally use the default of four words.
+ */
+
+/* STACK_CHECK_MAX_VAR_SIZE
+ * ... you will normally not need to override that default.
+ */
+
+/* 17.09.04 Registers that Address the Stack Frame*/
+
+/* STACK_POINTER_REGNUM ... The register number of the stack pointer register,
+ * which must also be a fixed register according to FIXED_REGISTERS.  On most
+ * machines, the hardware determines which register this is.
+ */
+#undef STACK_POINTER_REGNUM
+#define        STACK_POINTER_REGNUM    zip_SP
+
+/* FRAME_POINTER_REGNUM ... The register number of the frame pointer register,
+ * which is used to access certain automatic variables in the stack frame.  On
+ * some machines, the hardware determines which register this is.  On other
+ * machines you can choose any register you wish for this purpose.
+ *
+ * ZipCPU --- While I'd like to dump this pointer, since I don't really see
+ * a need for it, alloca() requires it.  Therefore let's assine a register to
+ * this purpose and watch what the compiler does with it.
+ */
+#ifdef zip_FP_PSEUDO
+#define        FRAME_POINTER_REGNUM    zip_FP_PSEUDO
+#else
+#define        FRAME_POINTER_REGNUM    zip_FP
+#endif
+
+/* HARD_FRAME_POINTER_REGNUM ... On some machines the offset between the frame
+ * pointer and starting offset of the automatic variables is not known until
+ * after register allocation has been done (for example, because the saved
+ * registers are between these two locations).  On those machines, define
+ * FRAME_POINTER_REGNUM the number of a special, fixed register to be used
+ * internally until the offset is known, and define HARD_FRAME_POINTER_REGNUM
+ * to be the actual hard register number used for the frame pointer.
+ *
+ * Do not define this macro if it would be the same as FRAME_POINTER_REGNUM
+ *
+ * ZipCPU --- we do not define this macro.
+ */
+#if (zip_FP == FRAME_POINTER_REGNUM)
+#define HARD_FRAME_POINTER_REGNUM      zip_FP
+#endif
+
+/* ARG_POINTER_REGNUM ... The register number of the arg pointer register, which
+ * is used to access the function's argument list.  On some machines, this is
+ * the same as the frame pointer register.  On some machines, the hardware
+ * determines which register this is.  On other machines, you can choose any
+ * register you wish for this purpose.  If this is not the same register as the
+ * frame pointer register, then you must mark it as a fixed register according
+ * to FIXED_REGISTERs, or arrange to be able to eliminate it.
+ *
+ * ZipCPU --- We really don't want to lose another register to something
+ * pointless, so let's set this to be the frame pointer register.  Especially
+ * given the ZipCPU's ease of accessing things via offsets of registers, this
+ * should work for a rather large stack frame.
+ */
+#define ARG_POINTER_REGNUM     FRAME_POINTER_REGNUM
+
+/* HARD_FRAME_POINTER_IS_FRAME_POINTER ... define this to be a preprocessor
+ * constant that is nonzero if hard_frame_pointer_rtx and frame_pointer_rtx
+ * should be the same.  The default definition is sufficient for us.
+ */
+
+/* HARD_FRAME_POINTER_IS_ARG_POINTER ...
+ * ZipCPU doesn't need this macro
+ */
+
+/* RETURN_ADDRESS_POINTER_REGNUM ... The register number of the return address
+ * pointer register, which is used to access the current function's return
+ * address from the stack.  On some machines, the return address is not at a
+ * fixed offset from the frame pointer or stack pointer or argument pointer.
+ * This register can be defined to point to the return address on the stack, and
+ * then to be converted by ELIMINABLE_REGS into either the frame pointer or the
+ * stack pointer.
+ *
+ * Do not define this macro unless there is no other way to get the return
+ * address from the stack.
+ *
+ * ZipCPU---we need this.
+ */
+#define        RETURN_ADDRESS_REGNUM   zip_R0
+
+
+/* STATIC_CHAIN_REGNUM ... Register numbers used for passing a function's
+ * static chain pointer.  If register windows are used, the register number as
+ * seen by the called function is STATIC_CHAIN_INCOMING_REGNUM, while the
+ * register number as seen by the calling function is STATIC_CHAIN_REGNUM.  If
+ * these register are the same, STATIC_CHAIN_INCOMING_REGNUM need not be
+ * defined.
+ *
+ * ZipCPU doesn't have register windows, so we don't need to define this.
+ */
+// #warning "I have no reason to believe this will even work"
+#define        STATIC_CHAIN_REGNUM     zip_GOT
+
+/* TARGET_STATIC_CHAIN ... This hook replaces the use of STATIC_CHAIN_REGNUM et
+ * al for targets that may use different static chain locations for different
+ * nested functions.  This may be required if the target has function attributes
+ * that affect the calling conventions of the function and those calling
+ * conventions use different static chain locations.
+ *
+ * ZipCPU --- don't need this.
+ */
+// #define     STATIC_CHAIN_REGNUM     zip_R11
+
+
+/* DWARF_FRAME_REGISTERS ... This macro specifies  the maximum number of hard
+ * registers that can be saved in a call frame.  This is used to size data
+ * structures used in DWARF2 exception handling.
+ *
+ * Prior to GCC 3.0, this macro was needed in order to establish a stable
+ * exception handling ABI in the face of adding new hard registers for ISA
+ * extensions.  In GCC 3.0 and later, the EH ABI is insulated from changes in
+ * the number of hard registers.  Nevertheless, this macro can still be used to
+ * reduce the runtime memory requirements of the exception handling routines,
+ * which can be substantial if the ISA contains a lot of registers that are not
+ * call-saved.
+ *
+ * If this macro is not defined, it defaults to FIRST_PSEUDO_REGISTER.
+ *
+ * ZipCPU --- The default is not sufficient.  The CC and PC registers need to
+ * be saved and examined as well in any debug/exception context.  Hence, we
+ * define this to be all of our registers.
+ */
+#undef DWARF_FRAME_REGISTERS
+#define        DWARF_FRAME_REGISTERS   16
+
+/* PRE_GCC3_DWARF_FRAME_REGISTERS ... This macro is similar to DWARF_FRAME_REG..
+ * but is provided for backward compatibility in pre GCC 3.0 compiled code.
+ *
+ * If not defined, it defaults to DWARF_FRAME_REGISTERS---which is perfect for
+ * the ZipCPU.
+ */
+
+/* DWARF_REG_TO_UNWIND_COLUMN(REGNO) ... Define this macro if the target's
+ * representation for dwarf registers is different than the internal
+ * representation for unwind column.  Given a dwarf register, this macro should
+ * return the unwind column number to use instead.
+ *
+ * ... ???
+ */
+
+/* DWARF_FRAME_REGNUM(REGNO) ... Define this macro is the target's
+ * representation for dwarf registers used in .eh_frame or .debug_frame is
+ * different from that used in other debug info sections.  Given a GCC hard
+ * register number, this macro should return the .eh_frame register number.
+ * The default is DBX_REGISTER_NUMBER(REGNO).
+ *
+ * ZipCPU --- provided we define DBX_REGISTER_NUMBER(REGNO) well, this default
+ * should still work for us.
+ */
+
+/* DWARF2_FRAME_REG_OUT(REGNO, FOR_EH) ... Define this macro to map register
+ * numbers held in the call frame info that GCC has collected using
+ * DWARF_FRAME_REGNO to those that should be output in .debug_frame (for_eh is
+ * zero) and .eh_frame (for_eh is non-zero). The default is to return REGNO.
+ *
+ * ZipCPU --- Default is good enough.
+ */
+
+/* REG_VALUE_IN_UNWIND_CONTEXT ... Define this macro if the target stores
+ * register values as _Unwind_Word type in unwind context.  It should be defined
+ * if target register size is larger than the size of void *.  The default
+ * is to store register values as void *type.
+ *
+ * ZipCPU --- Default is what we need.
+ */
+
+/* ASSUME_EXTENDED_UNWIND_CONTEXT ... Define this macro to be 1 if the target
+ * always uses extended unwind context with version, args_size, and by_value
+ * fields.  If it is undefined, it will always be defined to 1 when REG_VALUE_IN_UNWIND_CONTEXT is defined and 0 otherwise.
+ *
+ */
+
+
+/* 17.09.05 Eliminating Frame Pointer and Arg Pointer */
+
+/* TARGET_FRAME_POINTER_REQUIRED(VOID) ... This target hook should return true
+ * if a function must have and use a frame pointer.  This target hook is
+ * called in the reload pass.  If its return value is true, the function will
+ * have a frame pointer.
+ *
+ * This target hook can in principle examine the current function and decide
+ * according to the facts, but on most machines the constant false or the
+ * constant true suffices.  Use false when the machine allows code to be
+ * generated with no frame pointer, and doing so saves some time or space.
+ * Use true when there is no possible advantage to avoiding a frame pointer.
+ *
+ * ZipCPU---if we add in a frame pointer, we become register starved.  Hence,
+ * we'll treat this as a constant false--which is also the default value.
+ */
+#define        target_frame_pointer_required   zip_frame_pointer_required
+
+/* INITIAL_FRAME_POINTER_OFFSET ... A C statement to store in the variable
+ * depth-var the difference between the frame pointer and the stack pointer
+ * values immediately after the function prologue.  The value would be computed
+ * from information such as the result of get_frame_size() and the tables of
+ * registers regs_ever_live and call_used_regs.
+ *
+ * If ELIMINABLE_REGS is defined, this macro will not be used and need not be
+ * defined.  Otherwise, it must be defined even if TARGET_FRAME_POINTER_REQD
+ * always returns true; in that case you may set depth-var to anything.
+ *
+ * ZipCPU --- we intend to set ELIMINABLE_REGS, so this is not necessary.
+ */
+// #define     INITIAL_FRAME_POINTER_OFFSET(DEPTH)     (DEPTH) = 0
+
+
+/* ELIMINABLE_REGS ... If defined, this macro specifies a table of register
+ * pairs used to eliminate unneeded registers that point into the stack frame.
+ * If it is not defined, the only elimination attempted by the compiler is to
+ * replace references to the frame pointer with references to the stack pointer.
+ *
+ * On some machines, the position of the argument pointer is not known until
+ * the compilation is completed.  In such a case, a separate hard register
+ * must be used for the argument pointer.  This register can be eliminated by
+ * replacing it with either the frame pointer or the argument pointer,
+ * depending on whether or not the frame pointer has been eliminated.
+ *
+ * ZipCPU we'll take their suggestion and define this as:
+ */
+#undef ELIMINABLE_REGS
+#ifdef zip_FP_PSEUDO
+#define        ELIMINABLE_REGS \
+        {{ ARG_POINTER_REGNUM, STACK_POINTER_REGNUM},          \
+         { ARG_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM},     \
+         { FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM},        \
+         { FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}}
+#else
+# if (ARG_POINTER_REGNUM == FRAME_POINTER_REGNUM)
+#  define      ELIMINABLE_REGS \
+        {{ FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}}
+# else
+#  define      ELIMINABLE_REGS \
+       {{ ARG_POINTER_REGNUM, STACK_POINTER_REGNUM },  \
+        { ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM },  \
+        { FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}}
+# endif
+#endif
+
+/* bool TARGET_CAN_ELIMINATE(FROM,TO) ... This target function should return
+ * true if the compiler is allowed to try to replace register number FROM with
+ * register number TO.  This target hook need only be defined if ELIMINABLE_REGS
+ * is defined, and will usually return true since most of the cases preventing
+ * register elimination are things that the compiler  already knows about.
+ *
+ * ZipCPU ... does the compiler  know about my decision as to whether or not
+ * the frame pointer was needed?  The m68k code suggests it does not ...
+ */
+#define TARGET_CAN_ELIMINATE   zip_can_eliminate
+
+/* INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) ... This macro is similar to
+ * INITIAL_FRAME_POINTER_OFFSET.  It specifies the initial difference between
+ * the specified pair of registers.  This macro must be defined if
+ * ELIMINABLE_REGS is defined.
+ *
+ * ZipCPU---Is there a default we can use?
+ */
+#define        INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET)    (OFFSET)=0
+/*
+#define        INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET)            \
+       do { (OFFSET) = zip_initial_elimination_offset((FROM), (TO)); } \
+       while(0)                                        \
+*/
+
+/* 17.09.06 Passing function arguments on the stack */
+
+/* TARGET_PROMOTE_PROTOTYPES ... Returns true if an argument declared in a
+ * prototype as an integral type smaller than int should actually be
+ * passed as an int.  In addition to avoiding errors in certain cases of
+ * mismatch, it also makes for better code on certain machines.  The default is
+ * to not promote prototypes.
+ *
+ * Since everything is an int on the ZipCPU, let's promote anything smaller
+ * (which should still be an int) up to an int anyway.
+ */
+#undef TARGET_PROMOTE_PROTOTYPES
+#define        TARGET_PROMOTE_PROTOTYPES       hook_bool_const_tree_true
+
+/* PUSH_ARGS ... A C expression.  If nonzero, push instructions will be used to
+ * pass outgoing arguments.  If the target machine does not have a push
+ * instruction, set it to zero.  That directs GCC to use an alternate strategy:
+ * to allocate the entire argument block and then store the arguments into it.
+ * When PUSH_ARGS is nonzero, PUSH_ROUNDING must be defined too.
+ *
+ * ZipCPU does not have a push instruction, so we set this to zero.
+ */
+#undef PUSH_ARGS
+#define        PUSH_ARGS       0
+
+/* PUSH_ARGS_REVERSED ... A C expression.  If nonzero, function arguments will
+ * be evaluated last to first, rather than first to last.  If this macro is
+ * not defined, it defaults to PUSH_ARGS on targets where the stack and args
+ * grow in opposite directions, and zero otherwise.
+ *
+ * ZipCPU---Let's evaluate our arguments first to last.
+ */
+#define        PUSH_ARGS_REVERSED      1
+
+/* PUSH_ROUNDING(NPUSHED) ... A C expression that is the number of bytes
+ * actually pushed onto the stack when an instruction attempts to push
+ * (NPUSHED) bytes.
+ *
+ * ZipCPU---We cannot push bytes.  Let's leave this undefined and see what
+ * happens.
+ */
+// #warning "No appropriate definition seemed right."
+
+/* ACCUMULATE_OUTGOING_ARGS ... A C expression.  If non-zero, the maximum amount
+ * of space required for outgoing arguments will be computed and placed into
+ * crtl->outgoing_args_size.  No space will be pushed onto the stack for each call; instead the function prologue should increase the stack frame size by this
+ * amount.
+ *
+ * ZipCPU---This is *cool* and so necessary---it saves an extra two instructions
+ * each time we try to call a function/routine.  Yes, we want and *need* this
+ * for good performance.  I mean, think of it, free performance increase?  Who
+ * could argue with that?
+ */
+#undef ACCUMULATE_OUTGOING_ARGS
+#define        ACCUMULATE_OUTGOING_ARGS        1
+
+
+/* REG_PARM_STACK_SPACCE(FN) ... Define this macro if functions should assume
+ * that stack space has been allocated for arguments even when their values
+ * are passed in registers.  The value of this macro is the size, in bytes, of
+ * the area reserved for arguments passed in registers for the function
+ * represented by FN, which can be zero if GCC is calling a library function.
+ * The argument FN can be the FUNCTION_DECL, or the type itself of the function.
+ *
+ * This space can be allocated by the caller, or be part of the machine
+ * dependent stack frame: OUTGOING_REG_PARM_STACK_SPACE says which.
+ *
+ * ZipCPU --- Why allocate space you won't use?  Let's leave this undefined
+ * therefore.
+ */
+// #undef      REG_PARM_STACK_SPACE
+
+
+
+/* INCOMING_REG_PARM_STACK_SPACE(FN) ... Like REG_PARM_STACK_SPACE, but for
+ * incoming register arguments.  Define this macro if space guaranteed when
+ * compiling a function body is different to space required when making a call,
+ * a situation that can arise with K&R style function definitions.
+ *
+ */
+
+/* OUTGOING_REG_PARM_STACK_SPACE(FN) ... Define this to a nonzero value if it
+ * is the responsibility of the caller to allocate the area reserved for
+ * arguments passed in registers when calling a function of FN.  FN may be NULL
+ * if the function called is a library function.
+ *
+ * ZipCPU---Why allocate space you don't need?
+ */
+#define        OUTGOING_REG_PARM_STACK_SPACE(FNTYPE)   0
+
+
+/* STACK_PARMS_IN_REG_PARM_AREA ... Define this macro if REG_PARM_STACK_SPACE
+ * is defined, buyt the stack parameters don't skip the area specified by it.
+ *
+ * ZipCPU---We didn't define REG_PARM_STACK_SPACE, so we won't define this.
+ */
+
+/* TARGET_RETURN_POPS_ARGS(DECL,FNTYPE,SZ) ... This target hook returns the
+ * number of bytes of its own arguments that a function pops on returning, or 0
+ * if the function pops no arguments and the caller must therefore pop them all
+ * after the function returns.
+ *
+ * ZipCPU --- If we define this, we'll lose our gain from
+ * ACCUMULATE_OUTOING_ARGS.  Thus, we leave this undefined.
+ */
+
+/* CALL_POPS_ARGS(CUM) ... A C expression that should indicate the number of
+ * bytes a call sequence pops off of the stack.  It is added to the value of
+ * RETURN_POPS_ARGS when compiling a function call.  CUM is the variable in
+ * which all arguments to the function have been accumulated.
+ *
+ * ZipCPU---The call sequence, by itself, doesn't touch the stack.  Therefore
+ * this is zero.
+ */
+#undef CALL_POPS_ARGS
+#define        CALL_POPS_ARGS(CUM)     0
+
+
+/* 17.09.07 Passing arguments in registers */
+
+/* TARGET_FUNCTION_ARG ... Return an RTX indicating whether a function argument
+ * is passed in a register, and if so, which register.
+ */
+/*
+ * This has been poisoned ... so let's not define it anymore and look for
+ * a better way to do this ...
+ *
+ * #define     FUNCTION_ARG(CUM, MODE, TYPE, NAMED) (((NAMED) == 0) ? NULL_RTX
+ *     : targetm.calls.must_pass_in_stack(MODE, TYPE)  ? NULL_RTX
+ *     : (CUM) > ZIP_LAST_ARG_REGNO                    ? NULL_RTX
+ *     : gen_rtx_REG(MODE, CUM))
+ */
+#define        TARGET_FUNCTION_ARG     zip_function_arg
+
+
+/* TARGET_MUST_PASS_IN_STACK ...
+ */
+// #undef      TARGET_MUST_PASS_IN_STACK
+// #define     TARGET_MUST_PASS_IN_STACK       zip_must_pass_in_stack
+
+/* TARGET_FUNCTION_INCOMING_ARG ... Define this hook if the target machine
+ * has register windows, ... which ZipCPU does not have.
+ */
+
+/* TARGET_USE_PSEUDO_PIC_REG(void) ... This hook should return 1 in case
+ * pseudo register should be created for pic_offset_table_rtx during function
+ * expand.
+ *
+ * This should be defined by global parameters, isn't it?
+ */
+
+/* TARGET_INIT_PIC_REG(v) ... Perform a target dependent initialization of
+ * pic_offset_table_rtx.  This hook is called at the start of register
+ * allocation.
+ *
+ * ZipCPU---Let's revisit this.
+ */
+// #warning "Come back and relook at relocations"
+
+/* TARGET_ARG_PARTIAL_BYTES ... This target hook returns the number of bytes
+ * at the beginning of an argument that must be put in registers.  The value
+ * must be zero for arguments that are passed entirely in registers or that
+ * are entirely pushed on the stack.
+ */
+// #undef      TARGET_ARG_PARTIAL_BYTES
+// #define     TARGET_ARG_PARTIAL_BYTES        zip_arg_partial_bytes
+
+/* TARGET_PASS_BY_REFERENCE(CUM,MOD,TREE,NAMED) ... This target hook should
+ * return true if an argument at the position indicated by CUM should be passed
+ * by reference.  This predicate is queried after target independent reasons
+ * for being pssed by reference, such as TREE_ADDRESSABLE(TREE).
+ *
+ */
+// #undef      TARGET_PASS_BY_REFERENCE
+// #define     TARGET_PASS_BY_REFERENCE        zip_pass_by_reference
+
+/* CUMULATIVE ARGS ...  A C type for declaring a variable that is used as the
+ * first argument of 'FUNCTION_ARG' and other related values.
+ *
+ * ZipCPU---We're in trouble if an 'int' won't work, so let's just use that.
+ */
+#define        CUMULATIVE_ARGS int
+
+/*
+ * OVERRIDE_ABI_FORMAT
+ */
+
+/* INIT_CUMULATIVE_ARGS ... A C statement (sans semicolon) for initializing the
+ * variable CUM for the state at the beginning of the argument list.
+ *
+ *
+ * ZipCPU---The first argument is passed in register ZIP_FIRST_ARG_REGNO, or
+ * R1 (unless it has been redefined above ...)
+ */
+#define        INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME,FNDECL,N_NAMED_ARGS) (CUM = 0)
+
+/* INIT_CUMULATIVE_LIBCALL_ARGS
+ * INIT_CUMULATIVE_INCOMING_ARGS
+ *
+ * These default to the last INIT_CUM_ARGS value above.
+ */
+
+/* TARGET_FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) .. This hook updates
+ * the summarizer variable pointed to by CUM to advance past an argument in
+ * the argument list.  The values MODE, TYPE, and NAMED describe that
+ * argument.  Once this is done, the variable CUM is suitable for analyzing the
+ * following argument with TARGET_FUNCTION_ARG, etc.  This hook need not do
+ * anything if the argument in question was passed on the stack.  The compiler
+ * knows how to track the amount of stack space used for arguments without
+ * any special help.
+ *
+ * ZipCPU---Here we simply copy from ECO32.
+ */
+#define        TARGET_FUNCTION_ARG_ADVANCE     zip_function_arg_advance
+
+/*
+ * TARGET_ARG_OFFSET --- not necessary
+ * FUNCTION_ARG_PADDING        --- not necessary, since we shouldn't be padding
+ * PAD_VARARGS_DOWN    --- not necessary, since we shouldn't be padding
+ * BLOCK_REG_PADDING
+ * TARGET_FUNCTION_ARG_BOUNDARY
+ * TARGET_FUNCTION_ARG_ROUND_BOUNDARY
+ */
+
+/* FUNCTION_ARG_REGNO_P(REGNO) ... A C expression that is nonzero if REGNO is
+ * the number of a hard register in which function arguments are sometimes
+ * passed.  This does not include implicit arguments such as the static chain
+ * and the structure-value address.  On many machines, no registers can be used
+ * for this purpose since all function arguments are pushed on the stack.
+ */
+#define        FUNCTION_ARG_REGNO_P(r) ((r >= ZIP_FIRST_ARG_REGNO)&&(r<=ZIP_LAST_ARG_REGNO))
+
+/* TARGET_SPLIT_COMPLEX_ARG(TYPE) ... This hook should return true if parameter
+ * of type TYPE are passed as two scalar parameters.  By default, GCC will
+ * attempt to pack complex arguments into the target's word size.  Some ABI's
+ * require complex arguments to be split and treated as their individual
+ * components.
+ *
+ * The default value of this hook is NULL, which is treated as always false,
+ * and which should be good enough for ZipCPU--which can go either way.
+ */
+
+/* TARGET_BUILD_BUILTIN_VA_LIST ... This hook returns a type node for va_list
+ * for the target.  The default version of the hook returns void*.
+ *
+ */
+
+/* TARGET_ENUM_VA_LIST_P
+ */
+
+/* TARGET_FN_ABI_VA_LIST ... This hook returns the va_list type of the calling
+ * convention specified by FN.  The default version of this returns va_list_type_node.
+ */
+
+/* TARGET_FN_ABI_VA_LIST
+ */
+
+/* TARGET_CANONICAL_VA_LIST_TYPE
+ */
+
+/* TARGET_GIMPLIFY_VA_ARG_EXPR
+ */
+
+/* TARGET_VALID_POINTER_MODE(MODE) ... Define this to return nonzero if the
+ * port can handle pointers with machine mode MODE.  The default version of this
+ * hook returns true for both ptr_mode and Pmode.
+ *
+ * ZipCPU---if Pmode is properly defined (above, and I think it is), then the
+ * default behavior is quite appropriate.
+ */
+
+/* TARGET_REF_MAY_ALIAS_ERRNO(REFP) ... Define this to return nonzero if the
+ * memory reference REF may alias with the system C library errno location.
+ * The default version of this hook assumes the system C library errno location
+ * is either a declaration of type int or accessed by dereferencing a pointer
+ * to int.
+ *
+ * ZipCPU --- Default sounds good to me.
+ */
+
+
+/* TARGET_SCALAR_MODE_SUPPORTED_P(MODE) ... Define this to return nonzero if
+ * the port is prepared to handl instructions involving scalar mode MODE.  For
+ * a scalar mode to be considered supported, all the basic arithmetic and
+ * comparisons must work.
+ *
+ * The default version of this hook returns true for any mode required to
+ * handle the basic C types (as defined by the port).  Included here are the
+ * double-word arithmetic supported by the code in optabs.c.
+ */
+#undef TARGET_SCALAR_MODE_SUPPORTED_P
+#define        TARGET_SCALAR_MODE_SUPPORTED_P  zip_scalar_mode_supported_p
+
+/* TARGET_VECTOR_MODE_SUPPORTED_P(MODE) ... Define this to return nonzero if the
+ * port is prepared to handle instructions involving vector mode MODE.  At the
+ * very least, it must have move patterns for this mode.
+ *
+ * ZipCPU---does not support any vector modes.
+ */
+#undef TARGET_VECTOR_MODE_SUPPORTED_P
+#define        TARGET_VECTOR_MODE_SUPPORTED_P  hook_bool_mode_false
+
+/* TARGET_ARRAY_MODE_SUPPORTED_P(MODE, NELEMS) ... Return true if GCC should
+ * try to use a scalar mode to store an array of NELEMS elements, given that
+ * each element has mode MODE.  Returning true here overrides the usual MAX_FIXED_MODE limit and allows GCC to use any defined integer mode.
+ *
+ * ZipCPU---Sounds good.
+ */
+// #undef      TARGET_ARRAY_MODE_SUPPORTED_P
+// #define     TARGET_ARRAY_MODE_SUPPORTED_P   zip_array_mode_supported_p
+
+/* TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P(MODE) ... Define this to return
+ * nonzero if libgcc provides support for the floating-point mode MODE, which is
+ * known to pass TARGET_SCALAR_MODE_SUPPORTED_P.  The default version of this
+ * hook returns true for all of SFmode, DFmode, XFmode, and TFmode, if such
+ * modes exist.
+ *
+ * ZipCPU---We only support SFmode and DFmode, but for now only in emulation
+ * (if we can).  Let's allow both of those and see how far we get.
+ */
+#undef TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P
+#define        TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P zip_libgcc_floating_mode_supported_p
+
+/* TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P(MODE) ... Define this to return
+ * nonzero for machine modes for which the port has small register classes.  If
+ * target hook returns nonzero for a given MODE, the compiler will try to
+ * minimize the lifetime of registers in MODE.  The hook may be called with
+ * VOIDmode as an argument.  In this case, the hook is expected to return
+ * nonzero if it returns nonzero for any mode.
+ *
+ * The default version of this hook returns false for any mode.
+ *
+ * ZipCPU---Default sounds good.
+ */
+
+/* 17.09.08 How scalar function values are returned */
+
+/* TARGET_FUNCTION_VALUE
+ */
+
+/* LIBCALL_VALUE
+ */
+
+
+/* 17.09.09 How large values are returned */
+
+/* TARGET_RETURN_IN_MEMORY(TYP,FNTYP) ... This target hook should return a
+ * nonzero value to say to return the function value in memory, just as large
+ * structures are always returned.  Here type will be the data type of the value
+ * and FNTYP will be the type of the function doing the returning, or NULL
+ * for libcalls.
+ *
+ */
+#undef TARGET_RETURN_IN_MEMORY
+#define        TARGET_RETURN_IN_MEMORY zip_return_in_memory
+
+/* DEFAULT_PCC_STRUCT_RETURN
+ * TARGET_STRUCT_VALUE_RTX
+ * PCC_STATIC_STRUCT_RETURN
+ * TARGET_GET_RAW_RESULT_MODE
+ * TARGET_GET_RAW_ARG_MODE
+ */
+
+
+/* 17.09.10 Caller-Saves Register Allocation */
+/* 17.09.11 Function Entry and Exit */
+/* 17.09.12 Generating code for profiling */
+/* 17.09.13 Permitting tail calls*/
+/* 17.09.14 Stack smashing protection */
+/* 17.09.15 Miscellaneous register hooks */
+
+/* TARGET_CALL_FUSAGE_CONTAINS_NON_CALLEE_CLOBBERS
+ * ZipCPU --- default is good enough for us.
+ */
+
+/* 17.10 Implementing VARARGS MACROS */
+
+/* ...
+ */
+
+/* void TARGET_SETUP_INCOMING_VARARGS(A,M,T,I,S) ... This target hook offers an
+ * alternative to using __builtin_saveregs and defining the hook TARGET_EXPAND..
+ * _BUILTIN_SAVEREGS.  Use it to store the anonymous register arguments into the
+ * stack so that all the arguments appear to have been passed consecutively
+ * on the stack.  Once this is done, you can use the standard implementation
+ * of varargs that works for machines that pass all their arguments on the
+ * stack.
+ */
+// #undef      TARGET_SETUP_INCOMING_VARARGS
+// #define     TARGET_SETUP_INCOMING_VARARGS   zip_setup_incoming_varargs
+
+/* ...
+ */
+
+/* 17.11 Trampolines for Nested Functions */
+
+/* TARGET_ASM_TRAMPOLINE_TEMPLATE ... This hook is called by
+ * assemble_trampoline_template to output, on the stream f, assembler code for
+ * a block of data that contains the constant parts of a trampoline.  This code
+ * should not include a label--the label is taken care of automatically.
+ *
+ * ZipCPU -- looks like we need to do this.
+ */
+#undef TARGET_ASM_TRAMPOLINE_TEMPLATE
+#define        TARGET_ASM_TRAMPOLINE_TEMPLATE  zip_asm_trampoline_template
+
+/* TRAMPOLINE_SECTION ... Return the section into which the trampoline template
+ * is to be placed.  The default value is readonly_data_section.
+ *
+ * ZipCPU--default should be good enough.
+ */
+
+/* TRAMPOLINE_SIZE ... A C expression for the size (in bytes) of the trampoline
+ * as an integer.
+ *
+ * ZipCPU--it's three instructions, or 96 bits.  However, 32-bits is our minimal
+ * addressible unit, so what size do we offer here?  We'll stick with the number
+ * of bytes, but we may need to change this later.
+ *
+ */
+// #warning "May need to redefine trampoline_size in words, not bytes"
+#undef TRAMPOLINE_SIZE
+#define        TRAMPOLINE_SIZE 3
+
+/* TRAMPOLINE_ALIGNMENT ... alignment required for trampolines, in bits.
+ *
+ * Well that's well known in ZipCPU --- 32-bits.
+ */
+#undef TRAMPOLINE_ALIGNMENT
+#define        TRAMPOLINE_ALIGNMENT    32
+
+/* void TARGET_TRAMPOLINE_INIT(RTX,TREE,RTX CH) ... This hook is called to
+ * initialize a trampoline.  m_tramp is an RTX for the memory block for the
+ * trampoline; TREE is the FUNCTION_DECL for the nested fucntion;  CH is an
+ * rtx for the static chain value that should be passed to the function when
+ * it is called.
+ *
+ * ZipCPU ... Can we get by without this?
+ */
+#undef TARGET_TRAMPOLINE_INIT
+#define        TARGET_TRAMPOLINE_INIT  zip_trampoline_init
+
+/* TARGET_TRAMPOLINE_ADJUST_ADDRESS(RTX) ... This hook should perform any
+ * machine-specific adjustment in the address of the trampoline.  Its argument
+ * contains the address of the memory block that was passed to
+ * TARGET_TRAMPOLINE_INIT.  In case the address to be used for a function call
+ * should be different from the address at which the template was stored, the
+ * different address should be returned; otherwise addr should be returned
+ * unchanged.  If the hook is not defined, RTX (addr) will be used for function
+ * calls.
+ *
+ * ZipCPU--works for us!
+ */
+
+/* CLEAR_INSN_CACHE(BEG,END) ... If defined, expands to a C expression clearing
+ * the instruction cache in the specified interval.  The definition of this
+ * macro would typically be a series of asm statements.   Both BEG and END are
+ * pointer expressions.
+ *
+ * ZipCPU --- Ouch!  We have no way to do this (yet)!
+ */
+
+/* TRANSFER_FROM_TRAMPOLINE ... Define this macro is trampolines need a special
+ * subroutine to do their work.  THe macro should expand to a series of asm
+ * statements which will be compiled with GCC.  They go in a library function
+ * named __transfer_from_trampoline.
+ *
+ * We may need to rethink trampolines on ZipCPU.
+ */
+
+
+/* 17.12 Implicit Calls to Library Routines */
+
+/* DECLARE_LIBRARY_RENAMES
+ *
+ * ZipCPU: Don't need it.
+ */
+
+/* TARGET_INIT_LIBFUNCS(VOID) ... This hook should declare additional library
+ * routines or rename existing ones, using the functions set_optab_libfunc and
+ * init_one_libfunc defined in optabs.c.  init_optabs calls this macro after
+ * initializing all the normal library routines.
+ *
+ * Most ports don't need to define this hook, so we won't either.
+ */
+
+/* TARGET_LIBFUNC_GNU_PREFIX ... If false (the default), internal library
+ * routines start with two underscores.  If set to true, these routines start
+ * with __gnu_ instead.
+ *
+ * ZipCPU: No change necessary.
+ */
+
+/* FLOAT_LIB_COMPARE_RETURNS_BOOL(MODE,COMPARISON) ... This macro should return
+ * true if the library routine that implements the floating point comparison
+ * operator comparison in mode mode will return a boolean and false if it will
+ * return a tristate.
+ *
+ * Most ports don't need to define this macro, so Zip CPU won't either.
+ */
+
+/* TARGET_HAS_NO_HW_DIVIDE ... This macro should be defined if the target has no
+ * hardware divide instructions.  If this macro is defined, GCC will use an
+ * algorithm which makes use of simple logical and arithmetic operations for
+ * 64-bit division.  If the macro is not defined, GCC will use an algorithm
+ * which makes use of a 64-bit by 32-bit divide primitive.
+ *
+ * Zip CPU, though, doesn't have the 64-bit by 32-bit divide primitive, thus
+ * we have no HW DIVIDE (for now).
+ */
+#define        TARGET_HAS_NO_HW_DIVIDE
+
+/* TARGET_EDOM ... The value of EDOM on the target machine, as a C integer
+ * expression.  If you don't define this macro, GCC does not attempt to deposit
+ * the value of EDOM into errno directly.  Look in /usr/include/errno.h to find
+ * the value of EDOM on your system.
+ *
+ * EDOM is the error created when a math argument is out of the domain of the
+ * function.
+ *
+ * ZipCPU: Don't need it---I don't think.
+ */
+
+/* GEN_ERRNO_RTX ... Define this macro as a C exrpession to create an rtl
+ * expression that refers to the global "variable" errno.  (On certain
+ * systems, errno may not actually be a variable.)  If you don't define this
+ * macro, a reasonable default is used.
+ *
+ * ZipCPU --- if a reasonable default is used, we'll use that--especially since
+ * I doubt we'll be using errno for a while.
+ */
+
+/* NEXT_OBJC_RUNTIME ... Set this macro to 1 to use the "NeXT" Objective-C
+ * message sending conventions by default.  This calling convention involves
+ * passing the object, the selector and the method arguments all at once to the
+ * method-lookup library function.  This is the usual setting when targetting
+ * Darwin/Mac OS X systems, which have the NeXT runtime installed.
+ *
+ * If the macro is set to 0, ...
+ *
+ * Doesn't look relevant (yet) for the Zip CPU--especially since we don't have
+ * an O/S yet.
+ */
+
+
+
+/* 17.13 Addressing Modes */
+
+/* C expressions that are nonzero if the machine supports pre-increment,
+ * pre-decrement, post-increment, or post-decrement addressing respectively.
+ */
+#define        HAVE_PRE_INCREMENT      (0)
+#define        HAVE_PRE_DECREMENT      (0)
+#define        HAVE_POST_INCREMENT     (0)
+#define        HAVE_POST_DECREMENT     (0)
+
+/* C expression that is nonzero if the machine supports pre- or post- address
+ * side-effect generation involving constants other than the size of the memory
+ * operand.
+ */
+#define        HAVE_PRE_MODIFY_DISP    (0)
+#define        HAVE_POST_MODIFY_DISP   (0)
+
+/* C expression that is non-zero if the machine supports pre- or post-address
+ * side-effect generation involving a register displacement.
+ */
+#define        HAVE_PRE_MODIFY_REG     (0)
+#define        HAVE_POST_MODIFY_REG    (0)
+
+/* CONSTANT_ADDRESS_P(X) ... A C expression that is 1 if the RTX X is a constant
+ * which is a valid address.  On most machines the default definition ... is
+ * acceptable, but a few machines are more restrictive as to which constant
+ * addresses are supported.
+ *
+ * Zip CPU is designed for offset addresses, not constant addresses.  Although
+ * the CPU will support 18-bit signed constant addresses, the assembler and
+ * general programming model do not.  Further, without knowing where the final
+ * address will be located, this is an unusable model.  Therefore we will
+ * define this as not supported.
+ *
+ * In hindsight, this isn't true--labels and symbols are valid addresses, and
+ * they are also constant addresses.  Hence, we leave this at its default.
+ */
+// #undef      CONSTANT_ADDRESS_P
+// #define     CONSTANT_ADDRESS_P(X)   (0)
+
+/* CONSTANT_P(X) ... CONSTANT_P, which is defined by target-independent code, accepts integer values expressions whose values are not explicitly known, such as symbol_ref, label_ref, and high expressions and const arithmetic expressions, in addition to const_int and const_double expressions.
+ *
+ * Huh???
+ */
+// #define CONSTANT_P(X) ???
+
+/* A number, the maximum number of registers that can appear in a valid memory
+ * address.
+ */
+#define        MAX_REGS_PER_ADDRESS    1
+
+/* TARGET_LEGITIMATE_ADDRESS_P(MODE,RTX,STRICT) ... A function that returns
+ * whether RTX is a legitimate memory address on the target machine for a
+ * memory operation of mode MODE.
+ */
+#undef TARGET_LEGITIMATE_ADDRESS_P
+#define TARGET_LEGITIMATE_ADDRESS_P    zip_legitimate_address_p
+
+/* ECO32 suggested we do something like ... */
+#ifdef IGNORE_THIS_FOR_NOW
+#define        TARGET_LEGITIMATE_ADDRESS_P(MODE,X,STRICT)                      \
+       do {                                                    \
+               if (GET_CODE(X) == PLUS) {                      \
+                       rtx     op1, op2;                       \
+                       op1 = XEXP(X, 0); op2 = XEXP(X, 1);     \
+                       if ((GET_CODE(op1) == REG)              \
+                               &&(CONSTANT_ADDRESS_P(op2))     \
+                               &&(REGNO_OK_FOR_BASE_P(REGNO(op1))))    \
+                               goto LABEL;                     \
+               } if ((REG_P(X))&&(REGNO_OK_FOR_BASE_P(REGNO(X)))) \
+                       goto LABEL;                             \
+               if ((GET_CODE(X) == SYMBOL_REF)                 \
+                       ||(GET_CODE(X) == LABEL_REF)            \
+                       ||(GET_CODE(X) == CONST))               \
+                       goto LABEL;                             \
+       } while(0)
+#endif
+
+
+/* TARGET_MEM_CONSTRAINT ... A single character to be used instead of the
+ * default 'm' character for general memory addresses.  This defines the
+ * constraint letter which matches the memory addresses accepted by
+ * TARGET_LEGITIMATE_ADDRESS_P.  Define this macro if you want to support new
+ * address format in your back end without changing the semantics of the 'm'
+ * constraint.  This is necessary in order to preserve functionality of inline
+ * assembly constructs using the 'm' constraint.
+ *
+ * ZipCPU--doesn't look like we need to define this at all.
+ */
+
+/* FIND_BASE_TERM(X) ... A C expression to determine the base term of address
+ * X or to provide a simplified version of X from which alias.c can easily find
+ * the base term.  This macro is used in only two places: find_base_value and
+ * find_base_term in alias.c.
+ *
+ * It is always safe for this macro  to not be defined.  It exists so that
+ * alias analysis can understand machine-dependent addresses.
+ *
+ * ZipCPU: We'll skip this then.
+ */
+
+/* TARGET_LEGITIMIZE_ADDRESS(RTX,OLD,MODE) ... This hook is given an invalid
+ * memory address RTX for an operand of mode MODE and should try to return a
+ * valid memory address.  RTX will always be the result of a call to
+ * break_out_memory_refs, and OLD will be the operand that was given to that
+ * function to produce RTX.
+ *
+ * ZipCPU -- this may be worth coming back to.
+ */
+// #undef      TARGET_LEGITIMIZE_ADDRESS
+// #define     TARGET_LEGITIMIZE_ADDRESS       zip_legitimize_address
+
+/* LEGITIMIZE_RELOAD_ADDRESS(X,MODE,OP,TYPE,IND,WIN) ... A C compound statement
+ * that attempts to replace X, which is an address that needs reloading, with
+ * a valid memory address for an operand of mode MODE.  WIN will be a C
+ * statement label elsewhere in the code.  It is not necessary to define this
+ * macro, but it might be useful for performance reasons.
+ *
+ * ZipCPU: This is worth coming back to, according to the notes page, but it
+ * may also be a difficult macro to use.  Look at other implementations before
+ * we dive into this.
+ */
+// #undef LEGITIMIZE_RELOAD_ADDRESS
+// #define LEGITIMIZE_RELOAD_ADDRESS
+
+/* TARGET_MODE_DEPENDENT_ADDRESS_P(ADDR,SPACE) ... This hook returns true
+ * if memory address addr in address space addrspace can have different meanings
+ * depending on the machine mode of the memory reference it is used for or if
+ * the address is valid for some modes but not others.
+ */
+#undef TARGET_MODE_DEPENDENT_ADDRESS_P
+#define        TARGET_MODE_DEPENDENT_ADDRESS_P         zip_mode_dependent_address_p
+
+/* TARGET_LEGITIMATE_CONSTANT_P
+ */
+
+/* TARGET_DELIGITIMIZE_ADDRESS(RTX)
+ */
+
+/* TARGET_CONST_NOT_OK_FOR_DEBUG_P(RTX) ... This hook should return true if RTX
+ * should not be emitted into debug sections.
+ */
+
+/* TARGET_CANNOT_FORCE_CONST_MEM(MODE,RTX) ... This hook should return true if
+ * RTX is a form that cannot (or should not) be spilled to the constant pool.
+ * MODE is the mode of X.  The default version returns false.
+ */
+
+/* TARGET_USE_BLOCKS_FOR_CONSTANT_P(MODE,RTX) ... This hook should return true
+ * if pool entries for constant RTX can be placed in an object_block structure.
+ * MODE is the mode of X.  The default version returns false for all constants.
+ *
+ *????
+ */
+// #warning "Huh?"
+
+/* TARGET_USE_BLOCKS_FOR_DECL_P(DECL) ... This hook should return true if pool
+ * entries for DECL should be placed in an object_block structure.  The default
+ * version returns true for all DECL's.
+ *
+ * Sounds good.
+ */
+
+/* TARGET_BUILTIN_RECIPROCAL(TREE) ... This hook should return the DECL of a
+ * function that implements the reciprocal of the machine specific builtin
+ * function fndecl, or NULL_TREE if such a function is not available.
+ */
+
+/* TARGET_VECTORIZE_BUILTIN_MASK_FOR_LOAD(VOID) ... This hook should return the
+ * DECL of a function f that given an address addr as an argument returns a mask
+ * m that can be used to extrract from two vectors the relevant data that
+ * resides in addr in case addr is not properly aligned.
+ *
+ * Zip CPU does not support vectorization.
+ */
+
+/* Other vector, SIMD, and GOACC macros skipped as Zip CPU doesn't support
+ * such data accesses and manipulation.
+ */
+
+/* 17.14 Anchored Addresses */
+
+/* TARGET_MIN_ANCHOR_OFFSET ... The minimum offset that should be applied to
+ * a section anchor.  On most targets, it should be the smallest offset that
+ * can be applied to a base register while still giving a legitimate address for
+ * every mode.  The default value is 0.
+ *
+ * On the Zip CPU, this is the minimum operand B offset to a LOD or STO
+ * operation, which would be a signed 14 bit number.
+ */
+#undef TARGET_MIN_ANCHOR_OFFSET
+#define TARGET_MIN_ANCHOR_OFFSET       zip_min_anchor_offset
+
+/* TARGET_MAX_ANCHOR_OFFSET ... Like TARGET_MIN_ANCHOR_OFFSET, but the maximum
+ * (inclusive) offset that should be applied to section anchors.  The default
+ * value is 0.
+ */
+#undef TARGET_MAX_ANCHOR_OFFSET
+#define TARGET_MAX_ANCHOR_OFFSET       zip_max_anchor_offset
+
+/* TARGET_ASM_OUTPUT_ANCHOR(RTX) ... Write the assembly code to define section
+ * anchor RTX, which is a SYMBOL_REF for which 'SYMBOL_REF_ANCHOR_P(RTL) is
+ * true.  The hook is called with the assembly output position set to the
+ * beginning of SYMBOL_REF_BLOCK(X).
+ *
+ * If ASM_OUTPUT_DEF is available, the hook's default definition uses it to
+ * define the symbol as '. + SYMBOL_REF_BLOCK_OFFSET(RTL)'.  If ASM_OUTPUT_DEF
+ * is not available, the hook's default definition is NULL, which disables the
+ * use of section anchors altogether.
+ *
+ * Section anchors will be very valuable in Zip CPU assembly, therefore we
+ * must define this hook.
+ */
+// #undef      TARGET_ASM_OUTPUT_ANCHOR
+// #define     TARGET_ASM_OUTPUT_ANCHOR        zip_asm_output_anchor
+
+/* TARGET_USE_ANCHORS_FOR_SYMBOL_P(RTX) ... Return true if GCC should attempt
+ * to use anchors to access SYMBOL_REF X.  You can assume SYMBOL_REF_HAS_BLOCK_INFO_P(X) and !SYMBOL_REF_ANCHOR_P(X).
+ *
+ * The default version is correct for most targets, but you might need to intercept this hook to handle things like target specific attributes or target-specific sections.
+ *
+ * Not knowing anything more, we'll leave the default as is for the Zip CPU.
+ */
+// #undef TARGET_USE_ANCHORS_FOR_SYMBOL_P
+// #define TARGET_USE_ANCHORS_FOR_SYMBOL_P     zip_use_anchors_for_symbol_p
+
+/* 17.15 Condition Code Status */
+
+/* 17.15.1 Representation of condition codes using (cc0) --- that's us */
+
+/* CC_STATUS_MDEP ... C code for a data type which is used for declaring
+ * the mdep component of cc_status.  It defaults to int.
+ *
+ * ZipCPU---Int is good for us.
+ */
+
+/* CC_STATUS_MDEP_INIT ... A C expression to initialize the mdep field to
+ * "empty".  The default definition does nothing, since most machines don't
+ * use the field anyway.  If you want to use the field, you should probably
+ * define  this macro to initialize it.
+ */
+
+/* NOTICE_UPDATE_CC(EXP, INSN) ... A C compound statement to set the components
+ * of cc_status appropriately for an insn insn whose body is exp.  It is this
+ * macro's responsibility to recognize insns that set the condition code as
+ * a byproduct of other activity as well as those that explicitly set (cc0).
+ *
+ * ZipCPU --- We need this, as not all expressions set (cc0).
+ *
+ */
+#define        NOTICE_UPDATE_CC(EXP, INSN)     zip_update_cc_notice(EXP, INSN)
+
+
+/* 17.15.2 Representation of condition codes using registers */
+/* ... which the ZipCPU doesn't have.  The ZipCPU has a CC0 register, and hence
+ * this section isn't supposed to apply.
+ */
+
+/* SELECT_CC_MODE(op, x, y)
+ */
+
+/* TARGET_CANONICALIZE_COMPARISON(int,rtx *, rtx *, bool) ... On some machines
+ * (such as the ZipCPU) not all possible comparisons are defined, but you can
+ * convert an invalid comparison into a valid one.  For example, the Alpha
+ * does not have a GT comparison, but you can use an LT comparison instead and
+ * swap the order of the operands.
+ *
+ * On such machines, implement this hook to do any required conversions:  code
+ * is the initial comparison code and op0 and op1 are the left and right
+ * operands of the comparison, respectively.  If op0_preserve_value is true the
+ * implementation is not allowed to change the value of op0 since the value
+ * might be used in RTXs which aren't comparisons.  E.g. the implementation is
+ * not allowed to swap operands in that case.
+ *
+ * GCC will not assume that the comparison resulting from this macro is valid
+ * but will see if the resulting insn matches a pattern in the 'md' file.
+ *
+ * You need not implement this hook if it would never change the comparison
+ * code or operands.
+ *
+ * In the case of the ZipCPU, the ZipCPU only keeps track of 8 possible
+ * comparisons, and bastardizing other comparisons into those 8 is extremely
+ * painful.  Therefore, we *need* this capability to make certain we can use
+ * our comparisons successfully.
+ *
+ * The only problem is ... this hook appears to only be called on non-CC0
+ * machines.  Hence, defining it hasn't done anything for us.
+ */
+// #define     TARGET_CANONICALIZE_COMPARISON  zip_canonicalize_comparison
+
+/* 17.16 Relative costs of operations */
+
+
+// #define     REGISTER_MOVE_COST(MODE,FROM,TO)        ((MODE==DImode)||(MODE==DFmode))?4:2
+// #define     TARGET_REGISTER_MOVE_COST
+// #define     MEMORY_MOVE_COST(MODE, CLASS, IN)       ((MODE==DImode)||(MODE==DFmode))?8:7
+/* TARGET_REGISTER_MOVE_COST(M,FRM,TO) ... This target hook should return the
+ * cost of moving data of mode M from a register in class FRM to one in class
+ * TO.  The classes are expressed using the enumeration values such as
+ * GENERAL_REGS.  A value of 2 is the default; other values are interpreted
+ * relative to that.
+ *
+ * It is not required that the cost always equal 2 when FROM is the same as TO;
+ * on some machines it is expensive to move between registers if they are not
+ * general registers.
+ *
+ * If reload sees ...
+ *
+ * ZipCPU ... We can leave this at its default value of 2.
+ */
+
+/* TARGET_MEMORY_MOVE_COST(MOD,CL,IN) ... This target hook should return the
+ * cost of moving data of mode MOD between a register of class CL and memory.
+ * IN is false if the value is to be written to memory, true if it is to be
+ * read in.  This cost is relative to those in TARGET_REGISTER_MOVE_COST.
+ * If moving between registers and memory is more expensive that between two
+ * registers, you should add this target hook to express the relative cost.
+ *
+ * If you do not add this target hook, GCC uses a default cost of 4 plus the
+ * cost of copying via a secondary reload register, if one is needed.  If your
+ * machine requires a secondary reload register to copy between memory and a
+ * register of CL but the reload mechanism is more complex than copying via
+ * an intermediate, use this target hook to reflect the actual cost of the
+ * move.
+ *
+ * ZipCPU --- Memory moves are more expensive than twice the cost of register
+ * moves, so let's make certain this is defined.
+ */
+#define        TARGET_MEMORY_MOVE_COST zip_memory_move_cost
+
+// #warning "This needs to be double checked, and annotated"
+#define        BRANCH_COST(SPEED,PREDICTABLE)          ((SPEED)?2:5)
+
+/* Define this macro as a C expression which is nonzero if accessing less than
+ * a word of memory (i.e. a 'char' or a 'short') is no faster than accessing
+ * a word of memory.
+ */
+#define        SLOW_BYTE_ACCESS        1
+
+/* MOVE_RATIO(SPD) ... The threshold of number of scalar memory-to-memory move
+ * instructions, below which a sequence of instructions should be generated
+ * instead of a string move instruction or a library call.  Increasing the
+ * value will always make code faster, but eventually incurs high cost in
+ * increased code size.
+ */
+#define        MOVE_RATIO(SPD) 5
+
+/* TARGET_USE_BY_PIECES_INFRASTRUCTURE_P(SZ,ALGN,OP,SPD) ...
+ */
+// #undef      TARGET_USE_BY_PIECES_INFRASTRUCTURE_P(S,A,OP,SPD)
+// #define     TARGET_USE_BY_PIECES_INFRASTRUCTURE_P(S,A,OP,SPD)// needs hook
+
+/* CLEAR_RATIO(SPD) ... The threshold number of scalar move instructions, below
+ * which a sequence of instructions should be generated to clear memory instead
+ * of a string clear instruction or a library call.  Increasing the value will
+ * always make the code faster, but eventually incurs high cost in increased
+ * code size.
+ */
+#define        CLEAR_RATIO(SPD)        MOVE_RATIO(SPD)
+
+/* NO_FUNCTION_CSE ... Define this macro to be true if it is as good or better
+ * to call a constant function address than to call an address kept in a
+ * register.
+ *
+ * On the Zip CPU, constant function addresses--especially relative ones,
+ * can be optimized into a single cycle delay.  Register jumps will always
+ * stall the whole (5-stage) pipeline.
+ */
+#define        NO_FUNCTION_CSE
+
+/* TARGET_ADDRESS_COST ... This hook computes the cost of an addressing mode
+ * that contains address.  If not defined, the cost is computed from the
+ * address expression and the TARGET_RTX_COST hook.
+ */
+// We should define this for ZIP ... we're just not there yet
+// int TARGET_ADDRESS_COST(rtx address, machine_mode mode, addr_space_t as, bool speed)
+/* TARGET_ADDRESS_COST(ADDR,MODE,AS, SPD) ... This hook computes the cost of an
+ * addressing mode that contains ADDR.  If not defined, the cost is computed
+ * from the ADDR expression and the TARGET_RTX_COST hook.  In cases where more
+ * than one form of an address is known, the form with the lowest cost will be
+ * used.  If multiple forms have the same, lowest, cost, the one that is the
+ * most complex will be used.
+ *
+ * ZipCPU really has only one address cost, the only type of address it
+ * supports.  Sure, index addressing would cost us more, but we don't support
+ * that so ... I think we're okay defining this as a constant.  Indeed, the
+ * docs state that, "On RISC amchines, all instructions normally have the same
+ * length and execution time.  Hence all addresses will have equal costs."
+ */
+#undef TARGET_ADDRESS_COST
+#define        TARGET_ADDRESS_COST     zip_address_cost
+
+
+/* TARGET_NO_SPECULATION_IN_DELAY_SLOTS_P ... This predicate controls the use
+ * of the eager delay slot filler to disallow speculatively executed
+ * instructions being placed in delay slots.  Targets such as certain MIPS
+ * architectures posess both branches with and without delay slots.  As the
+ * eager delay slot filler can decrease performance, disabling it is beneficial
+ * when ordinary branches are available.  Use of delay slot branches filled
+ * using basic filler is often still desirable as the delay slot can hide a
+ * pipeline bubble.
+ */
+// How should Zip CPU define this--we have no delay slots.
+
+
+/* 17.17 Instruction Scheduler */
+
+#define        TARGET_SCHED_ISSUE_RATE zip_sched_issue_rate
+
+/* 17.18 Dividing the Output into Sections */
+
+/* Switch to the text or data segment. */
+#define        TEXT_SECTION_ASM_OP     "\t.text"
+#define        DATA_SECTION_ASM_OP     "\t.data"
+
+// #undef      TARGET_LIBGCC_SDATA_SECTION
+// #define     TARGET_LIBGCC_SDATA_SECTION     ".sdata"
+
+
+/* 17.19 Position Independent Code */
+
+#define        PIC_OFFSET_TABLE_REGNUM                 zip_GOT
+#define        PIC_OFFSET_TABLE_REG_CALL_CLOBBERED     0
+// #define LEGITIMATE_PIC_OPERAND_P(X) should evaluate to X(GOT) only
+
+/* 17.20 Defining the Output Assembler Language */
+
+/* 17.20.4 Output and Generation of Labels */
+
+/* ASM_OUTPUT_LABEL
+ * ... A default definition of this macro is provided which is correct for
+ * most systems.
+ */
+
+/* ASM_OUTPUT_FUNCTION_LABEL
+ * ... if not defined, then the function name is defined in the usual manner
+ * as a label.
+ */
+
+/* ASM_OUTPUT_INTERNAL_LABEL ... Identical to ASM_OUTPUT_LABEL, except that name
+ * is known to refer to a compiler-generated label.  The default definition
+ * uses assemble_name_raw, which is like assemble_name except that it is more
+ * efficient.
+ */
+
+/* SIZE_ASM_OP ... A C string containing the appropriate assembler directive
+ * to specify the size of a symbol, without any arguments.  ON systems that
+ * use ELF, the dfault is "\t.size\t"; on other systems, the default is not to
+ * define this macro.
+ *
+ * Define this amcro only if it is correct to use the default definitions of
+ * ASM_OUTPUT_SIZE_DERECTIVE and ASM_OUTPUT_MEASURED_SIZE for your system.
+ * If you need your own custom definitions of those macros, or if you do not
+ * need explicit symbol sizes at all, do not define this macro.
+ */
+
+/* ASM_OUTPUT_SIZE_DIRECTIVE
+ * ASM_OUTPUT_MEASURED_SIZE
+ */
+
+/* NO_DOLLAR_IN_LABEL ... Define this macro if the assembler does not accept
+ * the character '$' in label names.  By default constructors and destructors
+ * in G++ have "$" in the identifiers.  If this label is defined, '.' is
+ * used instead.
+ */
+
+/* NO_DOT_IN_LABEL ... Define this macro if the assembler does not accept the
+ * character '.' in label names.  By default constructors and destructors in
+ * G++ have names that use '.'.  If this macro is defined, these names are
+ * rewritten to avoid '.'.
+ */
+
+/* TYPE_ASM_OP ... A C string containing the appropriate assembler directive to
+ * specify the type of a symbol, without any arguments.  On systems that use
+ * ELF the default in config/elfos.h is "\t.type\t"; on other systems, the default is not to define this macro.
+ *
+ * Define this macro only if it is correct to use the default definition of
+ * ASM_OUTPUT_TYPE_DIRECTIVE forr your system.  If you need your own custom
+ * definition of this macr, or if you do not need explicit symbol types at all,
+ * do not define this macro.
+ */
+
+/* TYPE OPERAND_FMD ... A
+ */
+
+/* ASM_OUTPUT_TYPE_DIRECTIVE
+ */
+
+/* ASM_DECLARE_FUNCTION_NAME(STREAM, NAME, DECL) ...
+ * if this macro is not defined, then the function name is defined in the usual
+ * manner as a label (by means of ASM_OUTPUT_FUNCTION_LABEL).
+ */
+
+/* ASM_DECLARE_FUNCTION_SIZE
+ * ASM_DECLARE_COLD_FUNCTION_NAME
+ * ASM_DECLARE_COLD_FUNCTION_SIZE
+ * ASM_DECLARE_OBJECT_NAME
+ * TARGET_ASM_DECLARE_CONSTANT_NAME
+ */
+/* ASM_DECLARE_REGISTER_GLOBAL(STREAM, DECL, REGNO, NAME) ... A C statement
+ * (sans semicolon) to output to the stdio stream STREAM any text necessary for
+ * claiming a register REGNO for a global variable DECL with name NAME.
+ *
+ * If you don't defin this macro, that is equivalent to dfining it to do
+ * nothing.
+ */
+
+/* ASM_FINISH_DECLARE_OBJECT
+ * TARGET_ASM_GLOBALIZE_LABEL
+ * TARGET_ASM_GLOBALIZE_DECL_NAME
+ * TARGET_ASM_ASSEMBLE_UNDEFINED_DECL
+ * ASM_WEAKEN_LABEL
+ * ASM_WEAKEN_DECL
+ * ASM_OUTPUT_WEAKREF
+ * SUPPORTS_WEAK
+ * TARGET_SUPPORTS_WEAK
+ * MAKE_DECL_ONE_ONLY
+ * SUPPORTS_ONE_ONLY
+ * TARGTE_ASM_ASSEMBLE_VISIBILITY
+ * TARGET_WEAK_NOT_IN_ARCHIVE_TOC
+ * ASM_OUTPUT_EXTERNAL
+ * TARGET_ASM_EXTERNAL_LIBCALL
+ * TARGET_ASM_MARK_DECLPRESERVED
+ * ASM_OUTPUT_LABELREF
+ * TARGET_MANGLE_ASSEMBLER_NAME
+ * ASM_OUTPUT_SYMBOL_REF
+ * ASM_OUTPUT_LABEL_REF
+ * TARGET_ASM_INTERNAL_LABEL
+ * ASM_OUTPUT_DEBUG_LABEL
+ * ASM_GENERATE_INTERNAL_LABEL
+ * ASM_FORMAT_PRIVATE_NAME
+ */
+
+/* ASM_OUTPUT_DEF ... A C statement to output to the stdio stream STREAM
+ * assembler code which defines (equates) the symbol NAME to have the value
+ * VALUE.
+ *
+ * ZipCPU---So many other things that we need depend upon this, that we need
+ * to implement a non-default version.
+ */
+#define        ASM_OUTPUT_DEF  zip_asm_output_def
+
+/* ASM_OUTPUT_DEF_FROM_DECLS
+ * TARGET_DEFERRED_OUTPUT_DEFS
+ * ASM_OUTPUT_WEAK_ALIAS
+ * OBJ_GEN_METHOD_LABEL
+ */
+
+
+/* 17.20.7 Output of Assembler Instructions */
+
+#define        REGISTER_NAMES { "R0","R1","R2","R3","R4","R5","R6","R7","R8","R9", \
+       "R10","R11","R12","SP","CC","PC" }
+
+/* REGISTER_PREFIX     (Undefined by default)
+ * LOCAL_LABEL_PREFIX  (Undefined by default)
+ * USER_LABEL_PREFIX   defaults to "*"
+ * IMMEDIATE_PREFIX    (Undefined by default)
+ *
+ * If defined, C string expressions to be used for the '%R', '%L', '%U', and
+ * '%I' options of asm_fprintf (see 'final.c').  These are useful when a single
+ * 'md' file must support multiple assembler formats.  In that case, the various
+ * 'tm.h' files can define these macros differently.
+ */
+// #define     USER_LABEL_PREFIX       "*"
+
+/* Defining memory operand address formats is in this section. */
+
+/* 17.20.10 Assembler Commands for Alignment */
+
+/* JUMP_ALIGN(label) ... The alignment (log base 2) to put in front of label,
+ * which is a common destination of jumps and has no fallthru incoming
+ * edge.  This macro need not be defined if you don't want any special alignment
+ * to be done at such a time.  Most machine descriptions do not currently define
+ * this macro.
+ *
+ * ZipCPU---The assembler should automatically deal with label alignment, so
+ * let's not do anything about it here.
+ */
+
+/* TARGET_ASM_JUMP_ALIGN_MAX_SKIP
+ */
+
+/* LABEL_ALIGN_AFTER_BARRIER
+ * TARGET_ASM_LABEL_ALIGN_AFTER_BARRIER_MAX_SKIP
+ */
+
+/* LOOP_ALIGN(label)
+ * TARGET_ASM_LOOP_ALIGN_MAX_SKIP
+ * LABEL_ALIGN
+ * TARGET_ASM_LABEL_ALIGN_MAX_SKIP
+ */
+
+/* ASM_OUTPUT_SKIP(STREAM, NBYTES) A C statement to output to the stdio
+ * stream an assembler instruction to advance the location counter by nbytes
+ * bytes.
+ */
+
+/* TARGET_ASM_LABEL_ALIGN */
+/* Assembler Commands for Alignment */
+#define        ASM_OUTPUT_ALIGN(STREAM,POWER)  \
+               { int pwr = POWER; fprintf(STREAM, "\t.p2align %d\n", (pwr<2)?2:pwr); }
+
+
+
+/* 17.21 Controlling Debugging Information Format */
+/* 17.22 Cross Compilation and Floating Point */
+/* 17.23 Mode switching instructions */
+/* 17.24 Defining target-specific uses of __attribute__ */
+#undef TARGET_OPTION_OVERRIDE
+#define        TARGET_OPTION_OVERRIDE  zip_override_options
+
+/* 17.25 Emulating TLS */
+/* 17.26 Defining coprocessor specifics for MIPS targets*/
+
+ // ZipCPU isn't MIPS.
+
+/* 17.27 Parameters for Precompiled Header Validity Checking */
+/* 17.28 C++ ABI parameters */
+/* 17.29 Adding support for named address spaces */
+/* 17.30 Miscellaneous Parameters */
+
+/* HAS_LONG_COND_BRANCH ... Define this boolean macro to indicate whether or
+ * not your architecture has conditional branches that can span all of memory.
+ * It is used in conjunction with an optimization that partitions hot and
+ * cold basic blocks into separate sections of the executable.  If this macro
+ * is set to false, gcc will convert any conditional branches that attempt to
+ * cross between sections into unconditional branches or indirect jumps.
+ *
+ * ZipCPU --- The assembler renders long unconditional branch code without
+ * problems, so we can pretend that such long branches exist.
+ */
+#define        HAS_LONG_COND_BRANCH true
+
+/* HAS_LONG_UNCOND_BRANCH ... Define this boolean macro to indicate whether
+ * or not your architecture has unconditional branches that can span all of
+ * memory.  (ZipCPU does ... via the LOD (PC),PC instruction.)  It is used in
+ * conjunction with an optimization that partitions hot and cold basic blocks
+ * into separate sections of the executable.  If this macro is set to false,
+ * gcc will convert any unconditional branches that attempt to cross between
+ * sections into indirect jumps.
+ *
+ * ZipCPU has the LOD (PC),PC instruction which can be used to implement a long
+ * jump.
+ */
+#define        HAS_LONG_UNCOND_BRANCH  true
+
+/* CASE_VECTOR_MODE ... An alias for a machine mode name.  This is the machine
+ * mode that eleemnts of a jump-table should have.
+ *
+ */
+#define        CASE_VECTOR_MODE        SImode
+
+/* CASE_VECTOR_SHORTEN_MODE(MIN,MAX,BODY) ... Optional: return the preferred
+ * mode for an addr_diff_vec when the minimum and maximum offset are known.
+ * If you define this, it enables extra code in branch shortening to deal with
+ * addr_diff_vec.  To make this work, you also have to define INSN_ALIGN and
+ * make the alignment for addr_diff_vec explicit.  The body argument is provided so that the offset_unsigned and scale flags can be updated.
+ *
+ * ZipCPU---No advantage here.
+ */
+
+/* CASE_VECTOR_PC_RELATIVE ... Define this exrpession to indicate when
+ * jump-tables should contain relative addresses.  You need not define this
+ * macro if jump-tables never contain relative addresses, or jump-tables
+ * should contain relative addresses only when -fPIC or -FPIC is in effect.
+ *
+ * ZipCPU---No advantage in PC-Relative jump tables--except in PIC relative
+ * code.
+ */
+
+/* TARGET_CASE_VALUES_THRESHOLD(VOID) ... This function returns the smallest
+ * number of different values for which it is best to use a jump-table instead
+ * of a tree of conditional branches.  The default is four for machines with a
+ * casesi instruction and five otherwise.  This is best for most machines.
+ *
+ * ZipCPU---Leave at the default.
+ */
+
+/* WORD_REGISTER_OPERATIONS ... Define this macro to 1 if operations between
+ * registers with integral mode smaller than a word are always performed on the
+ * entire register.  Most RISC machines have this property and most CISC
+ * machines do not.
+ *
+ * ZipCPU---We have the property, 'cause we're fairly risk.
+ */
+#undef WORD_REGISTER_OPERATIONS
+#define        WORD_REGISTER_OPERATIONS        1
+
+/* LOAD_EXTEND_OP(MEMODE) ... Define this macro to be a C expression indicating
+ * when insns that read memory in MEMMODE, an integral mode narrower than a
+ * word, set the bits outside of MEMMODE to be either the sign extension or
+ * zero-extension of the data read.  Return SIGN_EXTEND for values of MEMMODE
+ * for which the insn sign-extends, ZERO_EXTEND for which it zero-extends, and
+ * UNKNOWN for other modes.
+ *
+ * Do not define this macro if it would always return UNKNOWN.
+ *
+ * ZipCPU---This should be irrelevant, so we leave it undefined.
+ */
+#undef LOAD_EXTEND_OP
+#define        LOAD_EXTEND_OP(MEM)     SIGN_EXTEND
+
+/* SHORT_IMMEDIATES_SIGN_EXTEND ... Define this macro to 1 if loading short immediate values into registers sign extends.
+ *
+ * ZipCPU---All immediates are sign extended, so yes.
+ */
+#undef SHORT_IMMEDIATES_SIGN_EXTEND
+#define        SHORT_IMMEDIATES_SIGN_EXTEND    1
+
+/* TARGET_MIN_DIVISIONS_FOR_RECIP_MUL
+ */
+
+/* MOVE_MAX ... The maximum number of bytes that a single instruction can move
+ * quickly between memory and registers or between two memory locations.
+ *
+ * ZipCPU --- Although we can move 32-bits at a time, and most people would call
+ * this 4-bytes, the compiler defines a byte as the minimum addressable unit.
+ * Therefore, this is defined to be one.
+ */
+#define        MOVE_MAX        1
+
+/* MAX_MOVE_MAX ... The maximum number of bytes that a single instruction can
+ * move quickly between memory and registers or between two memory ...
+ *
+ * ZipCPU --- this sounds just the same as MOVE_MAX, which is the default
+ * definition of this.
+ */
+
+/* SHIFT_COUNT_TRUNCATED ... A C expression that is nonzero if on this machine
+ * the number of bits actually used for the count of a shift operation is equal
+ * to the number of bits needed to represent the size of the object being
+ * shifted.
+ *
+ * You need not define this macro if it would have the value of zero.
+ *
+ * ZipCPU---A shift of 33 (or more) in either direction will wipe out the
+ * value in the register, therefore this value should be zero, the default.
+ */
+
+/* TARGET_SHIFT_TRUNCATION_MASK(MODE) ... This function describes how the
+ * standard shift patterns for MODE deal with shifts by negative amounts or by
+ * more than the width of the mode.
+ *
+ * ZipCPU---The default is zero, since we didn't define SHIFT_COUNT_TRUNCATED.
+ * This is the case for the ZipCPU as well.
+ */
+
+/* TRULY_NOOP_TRUNCATION(OUTPREC,INPREC) ... A C expression which is nonzero
+ * if on this machine it is safe to "convert" an integer of INPREC bits to one
+ * of OUTPREC bits (where OUTPREC is smaller than INPREC) by merely operating on
+ * it as if it had OUTPREC bist.  On many machines, this expression can be 1.
+ *
+ * ZiPCPU ... If both values are 32-bit, what conversion takes place?  If one is
+ * 64-bit and the other 32-bit ... I suppose it would then be safe.
+ */
+#undef TRULY_NOOP_TRUNCATION
+#define TRULY_NOOP_TRUNCATION(O,I)     1
+
+/* TARGET_MODE_REP_EXTENDED(MODE,REPMODE) ... The representation of an integral
+ * mode can be such that the values are always extended to a wider integral
+ * mode.  Return SIGN_EXTEND if values of MODE are represented in sign-extended
+ * form to REPMODE.  Return UNKNOWN otherwise.  (Currently none of the targets
+ * use zero-extended.
+ *
+ */
+// #undef      TARGET_MODE_REP_EXTENDED
+// #define     TARGET_MODE_REP_EXTENDED(R,M)   SIGN_EXTEND
+
+/* STORE_FLAG_VALUE ... A C expression describing the value returned by a
+ * comparison operator with an integral mode and stored by a store-flag
+ * instruction (cstoremode4) when the condition is true.  This description
+ * must apply to all the cstoremode4 patterns and all the comparison operators
+ * whose results have MODE_INT mode.
+ *
+ * ZipCPU---Doesn't really have a STORE_FLAG_VALUE instruction ...
+ */
+
+/* FLOAT_STORE_FLAG_VALUE
+ *
+ * ZipCPU
+ */
+
+/* VECTOR_STORE_FLAG_VALUE ... define this macro on machines that have vector
+ * comparison operations that return a vector result ...
+ *
+ * ZipCPU---Doesn't support vector operations.
+ */
+
+/* CLZ_DEFINED_VALUE_AT_ZERO(MODE, VAL)
+ * CTZ_DEFINED_VALUE_AT_ZERO(MODE, VAL)
+ *
+ * A C expression that indicates whetther the architecture defines a value for
+ * clz or ctz with a zero operand.  A result of 0 indicates the value is
+ * undefined.  If the value is defined for only the RTL expression, the macro should evaluate to 1.  If the value also applies to the corresponding optab
+ * entry, then the macro should evaluate to 2.  In cases where the value is
+ * defined, value should be set to this value.
+ * If this macro is not defined, the value of clz or ctz at zero is assumed to
+ * be undefined.
+ *
+ * ZipCPU---Has neither clz nor ctz instructions, so we don't need this.
+ */
+
+/* Pmode ... An alias for the machine mode for pointers.  On most machines,
+ * define this to be the integer mode corresponding to the width of a
+ * hardware pointer.  SImode on 32-bits machines, or DImode on 64-bit machines.
+ * On some machines you must define this to be one of the partial
+ * integer modes, such as PSImode.
+ */
+#undef Pmode
+#define        Pmode   SImode
+
+/* FUNCTION_MODE ... An alais for the machine mode used for memory references to
+ * function being called, in call RTL expressions.  On most CISC machines, where
+ * an instruction can begin at any byte address, this should be QImode.  On most
+ * RISC machines, where all instructions have fixed size and alignment, this
+ * should be a mode with the same size and alignment as the machine instruction
+ * words--typically SImode or HImode.
+ *
+ * ZipCPU---Definitely SImode, as with Pmode.  (All words are 32-bits, including
+ * addresses on the ZipCPU.
+ */
+#undef FUNCTION_MODE
+#define        FUNCTION_MODE   SImode
+
+/* STDC_0_IN_SYSTEM_HEADERS
+ */
+
+/* TARGET_C_PREINCLUDE(V) ... Define this hook to return the name of  a header
+ * file to be included at the start of all compilations, as if it had been
+ * included with #include <file>.  If this hook returns NULL, or is not defined,
+ * or if the header is not found, or if the user specifies -ffreestanding or
+ * -nostdinc, no header is included.
+ *
+ * ZipCPU --- We don't have a standard library defined yet, so we'll leave this
+ * as NULL.
+ */
+#undef TARGET_C_PREINCLUDE
+#define        TARGET_C_PREINCLUDE     NULL
+
+/* TARGET_CXX_IMPLICIT_EXTERN_C(CONST CHAR *) ... Define this hook to add target
+ * specific C++ implicit extern C functions.  If this function returns true
+ * for the name of a file-scope function, that function implicitly gets extern
+ * "C" linkage rather than whatever linkage the declaration would normally have.
+ * An example of such function is WinMain on Win32 targets.
+ *
+ * ZipCPU---Not ready to deal with this yet.
+ */
+
+/* NO_IMPLICIT_EXTERN_C ... Define this macro if the system header files
+ * support C++ as well as C.  This macro inhibits the usual method of using
+ * system header files in C++, which is to pretend that the file's contents
+ * are enclosed in 'extern "C" {...}'.
+ *
+ *
+ * ZipCPU --- Don't have either C or C++ headers, so let's skip this for now.
+ * Eventually, though, I think ZipCPU and C++ would go very well together.
+ */
+
+/* REGISTER_TARGET_PRAGMAS ... Define this macro if you want to implement any
+ * target specific pragmas.
+ *
+ * ZipCPU --- let's not.
+ */
+
+/* HANDLE_PRAGMA_PACK_WITH_EXPANSION ... Define this macro if macros should be
+ * expanded in the arguments of #pragma pack().
+ *
+ * ZipCPU ... why?
+ */
+
+/* TARGET_DEFAULT_PACK_STRUCT ... If your target requires a struct packing
+ * default other than 0 (meaning the machine default), define this macro to
+ * the necessary value (in bytes).  This must be a value that would also be
+ * valid to use with #pragma pack() (that is a small power of two.
+ */
+
+/* DOLLARS_IN_IDENTIFIERS
+ * ZipCPU --- Default (not changing C)
+ */
+
+/* INSN_SETS_ARE_DELAYED(INSN) ... Define this macro as a C expression that
+ * is nonzero if it is safe for the delay slot schedule to place instructions
+ * in the delay slot of INSN, even if they appear to use a resource set or
+ * clobbered in INSN.  INSN is always a ...
+ *
+ * ZipCPU --- You need not define this macro if it would always return zero.
+ */
+
+/* INSN_REFERENCES_ARE_DELAYED(INSN) ... Define this macro as a C expression
+ * that is nonzero if it is safe for the delay slot schedule to place
+ * instructions in the delay slot of INSN, even if they appear to set or clobber
+ * a resource referenced in INSN.  INSN is always a jump_insn or an insn.  On
+ * machines where some insn or jump_insn is really a function call and ...
+ *
+ * ZipCPU --- You need not define this macro if it would always return zero.
+ */
+
+/* MULTIPLE_SYMBOL_SPACES ... Define this macro as a C expression that is
+ * nonzero if, in some cases, global symbols from one translation unit may not
+ * be bound to undefined symbols in another translation unit without user
+ * intervention.  For instance, under Microsoft Windows symbols must be
+ * explicitly imported from shared libraries (DLLs).
+ *
+ * ZipCPU---You need not define this macro if it would always evaluate to zero,
+ * so we won't.
+ */
+
+/* TARGET_MD_ASM_ADJUST
+ */
+/* MATH_LIBRARY ... Define this macro as a C constant ... you only need to
+ * define this macro if the default of "m" is wrong.
+ *
+ * ZipCPU --- as we don't have a math library yet, building one such that "m"
+ * works doesn't sound like a problem.  Let's not define this.
+ */
+
+/* LIBRARY_PATH_ENV ... Define this as a C string constant for the environment
+ * variable that specifies where the linker should look for libraries.
+ *
+ * Just in case we want to add libraries for ZipCPU, let's place them in
+ * /usr/local/zip/lib, so as not to confuse them with our local systems
+ * libraries.
+ */
+#define        LIBRARY_PATH_ENV        "/usr/local/zip/lib"
+
+/* TARGET_POSIX_IO ... Define this macro if the target supports the following
+ * POSIX file fucntions: access, mkdir, and file locking with fcntl/F_SETLKW.
+ *
+ * ZipCPU does not.
+ */
+
+/* MAX_CONDITIONAL_EXECUTE ... A C expression for the maximum number of
+ * instructions to execute via conditional execution instructions instead of a
+ * branch.  A value of BRANCH_COST+1 is the default if the machine does not use
+ * cc0 and 1 if it does use cc0.
+ *
+ * ZipCPU---This sounds good enough for the ZipCPU as well--as long as we have
+ * BRANCH_COST defined.  However, BRANCH_COST is defined as conditionally to
+ * something else, so let's keep looking into this.
+ */
+
+/* IFCVT_MODIFY_TESTS(CEINFO,TRUE,FALSE) ... Used if the target needs to
+ * perform machine-dependent modifications on the conditionals used for turning
+ * basic blocks into conditionally executed code.  CEINFO points to a data
+ * structure, struct ce_if_block, which contains information about the currently
+ * processed blocks.  TRUE and FALSE are the tests that are used for
+ * converting the then-block and the else-block, respectively.  Set either TRUE
+ * or FALSE to a null pointer if the tests cannot be converted.
+ *
+ * ZipCPU --- I need to set this to properly take advantage of our conditional
+ * execution and conditional testing capabilities.
+ */
+// #warning "Need to come back to this."
+
+/* IFCVT_MODIFY_MULTIPLE_TESTS(CEINFO, BB, TRUE, FALSE) ... Like
+ * IFCVT_MODIFY_TESTS, but used when converting more complicated if-statements
+ * into conditions combined by and and or operations.  BB contains the basic
+ * block that contains the test that is currently being processed and about to
+ * be turned into a condition.
+ *
+ *
+ * ZipCPU --- I need to set this to properly take advantage of our conditional
+ * execution and conditional testing capabilities.
+ */
+// #warning "Need to come back to this."
+
+
+/* IFCVT_MODIFY_INSN(CEINFO, PATTERN, INSN) ... A C expression to modify the
+ * PATTERN of an INSN that is to be converted to conditional execution format.
+ * CEINFO points to a data structure, struct ce_if_block, which contains
+ * information about the currently processed blocks.
+ *
+ *
+ * ZipCPU --- I need to set this to properly take advantage of our conditional
+ * execution and conditional testing capabilities.
+ */
+// #warning "Need to come back to this."
+
+
+/* IFCVT_MODIFY_FINAL(CEINFO) ... A C expression to perform any final
+ * machine dependent modifications in converting code to conditional
+ * execution.  The involved basic blocks can be found in struct ce_if_block
+ * structure pointed to be CEINFO.
+ *
+ *
+ * ZipCPU --- I need to set this to properly take advantage of our conditional
+ * execution and conditional testing capabilities.
+ */
+// #warning "Need to come back to this."
+
+
+/* IFCVT_MODIFY_CANCEL(CEINFO) ... A C expression to cancel any machine
+ * dependent modifications in converting code to conditional execution.  The
+ * involved basic blocks can be found in the struct ce_if_block structure that
+ * is pointed to by CEINFO.
+ *
+ *
+ * ZipCPU --- I need to set this to properly take advantage of our conditional
+ * execution and conditional testing capabilities.
+ */
+// #warning "Need to come back to this."
+
+
+/* IFCVT_MACHDEP_INIT(CEINFO) ... A C expression to initialize any machine
+ * specific data for if-conversion of the if-block in the CEINFO block structure
+ * that is pointed by CEINFO.
+ *
+ *
+ * ZipCPU --- I need to set this to properly take advantage of our conditional
+ * execution and conditional testing capabilities.
+ */
+// #warning "Need to come back to this."
+
+
+/* TARGET_MACHINE_DEPENDENT_REORG(VOID) ... If non-null, this hook performs a
+ * target specific pass over the instruction stream.  The compiler will run it
+ * at all optimization levels, just before the point at which it normally does
+ * delayed branch scheduling.
+ *
+ * You need not implement the hook if it has nothing to do.
+ *
+ * ZipCPU---This may be part of a later upgrade, but shouldn't be needed to
+ * just get us started.
+ */
+
+
+/* TARGET_INIT_BUILTINS(VOID) ... Define this hook if you ahve any machine
+ * specific builtin functions that need to be defined.  It should be a function
+ * that performs the necessary setup.  Machine specific builtin functions can be
+ * useful to expand special machine instructions that would otherwise not
+ * normally be generated because they have no equivalent in the source language.
+ *
+ * To create a built in function, call the function lang_hooks.builtin_function
+ * which is defined by the language front end.  You can use any type nodes
+ * set up by build_common_tree_nodes; only language front ends that use those
+ * two functions will call "TARGET_INIT_BUILTINS".
+ *
+ * ZipCPU---We need to come back to this.  We should have several built-ins
+ * defined: rtu(), wait(), halt(), save_context(cstackregno), and
+ * restore_context(cstackregno).
+ *
+ */
+#undef TARGET_INIT_BUILTINS
+#define        TARGET_INIT_BUILTINS    zip_init_builtins
+
+/* TARGET_BUILTIN_DECL(CODE,INITP) ... Define this hook if you have any
+ * machine specific builtin functions that need to be defined.  It should be a
+ * function that returns the builtin function declaration for the builtin
+ * function code code.  If there is no such builtin and it cannot be initialized
+ * at this time if INITP is true the function should return NULL_TREE.  If
+ * CODE is out of range the fucntion should return error-mark_node.
+ *
+ * ZipCPU ... needs to be done, don't know how to do it yet.
+ */
+#undef TARGET_BUILTIN_DECL
+#define        TARGET_BUILTIN_DECL     zip_builtin_decl
+
+
+/* TARGET_EXPAND_BUILTIN(TREE,TGT,SUB,MODE,IGNORE) ... Expand a call to a
+ * machine specific built-in function that was set up by TARGET_INIT_BUILTINS.
+ * TREE is the expression for the function call; the result should go to
+ * TGT if that is convenient, and have mode MODE if that is convenient.  SUB
+ * may be used as the target for computing one of EXP's operands.  IGNORE is
+ * non-zero if the value is to be ignored.  This function should return the
+ * result of the call to the built-in function.
+ *
+ * ZipCPU ... needs to do it, just to get our special intrinsic functions
+ */
+#define        TARGET_EXPAND_BUILTIN   zip_expand_builtin
+
+
+/* TARGET_BUILTIN_CHKP_FUNCTION(FCODE) ... Allows the target to redefine
+ * builtin functions used by Pointer Bounds Checker for code instrumentation.
+ *
+ * ZipCPU --- not interested.
+ */
+/* TARGET_CHKP_BOUND_TYPE
+ * TARGET_CHKP_MAKE_BOUNDS_CONSTANT
+ * TARGET_CHKP_INITIALIZE_BOUNDS
+ *
+ * ZipCPU --- Same as last one.
+ */
+
+
+/* TARGET_RESOLVE_OVERLOADED_BUILTIN(LOC, FN, ARGS) ... Select a replacement
+ * for a machine specific built-in function that was set up by
+ * TARGET_INIT_BUILTINS.
+ *
+ * ZipCPU --- If I go to the trouble to create a builtin, why would I want
+ * to then overload it?
+ */
+
+/* TARGET_FOLD_BUILTIN(FN,NARGS,ARGP,IGNORE) ... Fold a call to a machine
+ * specific built-in function that was set up by 'TARGET_INIT_BUILTINS'  FN
+ * is the declaration of the built-in function.  NARGS is the number of
+ * arguments passed to the function; the arguments themselves are pointed to by
+ * ARGP.  The result is another tree, valid for both GIMPLE and GENERIC,
+ * containing as simplified expression for the call's result.  If IGNORE is
+ * true the value will be ignored.
+ *
+ * ZipCPU --- You know, this and the previous couple sound like something
+ * whereby I might be able replace bit-reversal code with my bit reverse
+ * instruction.  That would be very useful, but not necessary to get me
+ * started.
+ */
+
+/* TARGET_GIMPLE_FOLD_BUILTIN
+ * TARGET_COMPARE_VERSION_PRIORITY
+ * TARGET_GET_FUNCTION_VERSIONS_DISPATCHER
+ * TARGET_GENERATE_VERSION_DISPATCHER_BODY
+ * TARGET_CAN_USE_DOLOOP_P
+ * TARGET_INVALID_WITHIN_DOOLOOP
+ * TARGET_LEGITIMATE_COMBINED_INSN
+ * TARGET_CAN_FOLLOW_JUMP
+ * TARGET_COMMUTATIVE_P
+ */
+
+/* TARGET_ALLOCATE_INITIAL_VALUE(REGNO)  ... When the initial value of a hard
+ * register has been copied in a pseudo register, it is often not necessary
+ * ...
+ */
+/* TARGET_UNSPEC_MAY_TRAP_P(RTX,FLAGS)  ... This target hook returns nonzero in
+ * RTX, un unspec or unspec_volatile operation, might cause a trap.  Targets
+ * can use this hook to enhance precision of analysis for unspec and
+ * unspec_volatile operations.  You may call may_trap_p_1 to analyze inner
+ * elements of RTX in which case flags should be passed along.
+ */
+
+/* TARGET_SET_CURRENT_FUNCTION(TREE)  The compiler invokes this hook whenever
+ * it changes its current function context (CFUN).  You can define this
+ * function if the back end needs to perform any initialization or reset
+ * actions on a per-function basis.  For example, it may be used to implement
+ * function attributes that affect register usage or code generation patterns.
+ */
+
+/* TARGET_OBJECT_SUFFIX ... Define this macro to be a C string representing the
+ * suffix for object files on your target machine.  If you do not define this
+ * macro, GCC will use ".o" as the suffix for object files.
+ */
+#define        TARGET_OBJECT_SUFFIX    ".o"
+
+/* TARGET_EXECUTABLE_SUFFIX
+ */
+#define        TARGET_EXECUTABLE_SUFFIX        ""
+
+/* COLLECT_EXPORT_LIST ... If defined, collect2 will scan the individual object
+ * files specified on its command line and create an export list for the linker.
+ * Define this macro for systems like AIX, where the linker discards object
+ * files that are not referenced from main and uses export lists.
+ *
+ * ZipCPU --- shoudln't need this.
+ */
+
+/* MODIFY_JNI_METHOD_CALL(MDECL)  ... Define this macro to a C expression
+ * representing a variant of the method call mdecl, if Java Native Interface
+ * (JNI) methods must be invoked differently from other methods on your
+ * target.  For example, on 32-bit MSWindows, JNI methods must be invoked
+ * using the stdcall calling convention and this macro is then ...
+ *
+ * ZipCPU----Don't need this.  (yet)
+ */
+
+
+/* TARGET_CANNOT_MODIFY_JUMPS_P ... This target hook returns true past the
+ * point in which a new jump instructions could be created.  On machines that
+ * require a register for every jump such as the SHmedia ISA of SH5, this point
+ * would typically be reload, so thiss target hook should be defined to a
+ * function such as:
+ *
+ * ZipCPU --- I don't get what this is for.
+ */
+
+/* TARGET_BRANCH_TARGET_REGISTER_CLASS ... This target hook returns a register
+ * class for which branch target register optimizations should be applied.  All
+ * registers in this class should be usable interchangably.  After reload,
+ * registers in this class will be re-allocated and loads will be hoisted out of
+ * loops and be subjected to inter-block scheduling.
+ *
+ * ZipCPU---GENERAL_REGS, but this should be a default already ...
+ */
+
+
+/* TARGET_BRANCH_TARGET_REGISTER_CALLEE_SAVED ...  Branch target register
+ * optimization will by default exclude callee-saved registers that are not
+ * already live during the current function.  If this target hook returns true,
+ * they will be included.  The target code must then make sure that all target
+ * registers in the class returned by TARGET_BRANCH_REGISTER_CLASS that might
+ * be saved are saaved.
+ *
+ * ZipCPU---
+ */
+
+
+/* TARGET_HAVE_CONDITIONAL_EXECUTION(VOID) ... This target hook returns true
+ * if the target supports conditional execution.  This target hook is required
+ * only when the target has several different modes and they have different
+ * conditional execution capability, such as ARM.
+ *
+ * ZipCPU---Yes!  All instructions may be conditionally executed (except the
+ * long version load immediate ...)
+ */
+#define        TARGET_HAVE_CONDITIONAL_EXECUTION       hook_bool_void_true
+
+/* TARGET_GEN_CCMP_FIRST(PREP,GEN,CODE,OP0,OP1) .. This function prepares to
+ * emit a comparison instruction for the first compare in a sequence of
+ * conditional comparisons.  It returns an appropriate comparison with CC for
+ * passing to gen_ccmp_next or cbranch_optab.  The instructions to prepare the
+ * compare are saved in prep_seq and the compare instructions are saved in
+ * gen_seq.  They will be emitted when all the compares in the conditional
+ * comparison are generated without error.  CODE is the rtx_code of the compare
+ * for op0 and op1.
+ *
+ *
+ * ZipCPU---???
+ */
+
+/* TARGET_GEN_CCMP_NEXT(PREP,GEN,PREV,CMP,OP0,OP1,BITCODE) ... This function
+ * prepares to emit a conditional comparison within a sequence of conditional
+ * comparisons.  It returns an appropriate comparison with CC for passing to
+ * gen_ccmp_next or cbranch_optab.  The insn to prepare the compare are saved
+ * in prep_seq and the compare instructions are saved in gen_seq.  They will be
+ * emitted when all the compares in the conditional comparison are generated
+ * without error.  The pPREV expression is the result of a prior call to either
+ * gen_ccmp_first or gen_ccmp_next.  It may return NULL if the combination of
+ * PREV and this comparison is not supported, otherwise the result must be the
+ * appropriate for passing to gen_ccmp_next or cbranch_optab.  CODE is the RTX
+ * code of the compare for op0 and op1.  BITCODE is AND or IOR, which is the op
+ * on the compares.
+ *
+ *
+ * ZipCPU --- ???
+ */
+
+/* TARGET_LOOP_UNROLL_ADJUST(NUNROLL, LOOP) ... This target hook returns a new
+ * value for the number of times loop should be unrolled.  The parameter NUNROLL
+ * is the number of times the loop is to be unrolled.  The parameter loop is a
+ * pointer to the loop, which is going to be checked for unrolling.  The target
+ * hook is required only when the target has special constraints like maximum number of memory accesses.
+ *
+ *
+ * ZipCPU -- ???
+ */
+
+
+/* POWI_MAX_MULTS ... If defined, this macro is interpreted as a signed integer
+ * C expression that specifies the maximum number of floating point
+ * multiplications that should be emitted when expanding exponentiation by an
+ * integer constant inline.  When this value is defined, exponentiation
+ * requiring more than this number of multiplications is implemented by calling
+ * the system library's pow, powf, or powl routines.  The default value
+ places no upper bound on the multiplication count.
+ *
+ * ZipCPU---As we have no system library pow() routine (yet) ... we're not
+ * ready for this macro.
+ */
+
+
+/* TARGET_EXTRA_INCLUDES(SYSROOT, PFX, STDINC) ... This target hook should
+ * register any extra include files for the target.  The parameter stdinc
+ * indicates if normal include files are present.  The parameter SYSROOT is the
+ * system root directory.  The parameter PFX is the prefix for the GCC
+ * directoiry.
+ *
+ *
+ * ZipCPU---None yet.
+ */
+
+/* TARGET_EXTRA_PRE_INCLUDES(SYSROOT, PFX, STDINC) ... This target hook should
+ * register any extrra include files for the target before any standard headers.
+ * The parameter stdinc indicates if normal include files are present.
+ *
+ * ZipCPU --- None.
+ */
+
+/* TARGET_OPTF(PATH) ... This target hook should register special include paths
+ * for the target.  The parameter path is the integer to register.  On Darwin
+ * systems, this is used for Framework includes, which have semantics that are
+ * different from -I.
+ *
+ *
+ * ZipCPU --- None.
+ */
+
+/* TARGET_USE_LOCAL_THUNK_ALIAS_P(FN) ... This target macro returns if it is
+ * safe to use a local alias for a virtual function FN when constructing
+ * thunks, false otherwise.  By default, the macro returns true for all
+ * functions, if a target supports aliases (i.e. defines ASM_OUTPUT_DEF),
+ * false otherwise.
+ *
+ *
+ * ZipCPU --- ???
+ */
+// #warning "ASM_OUTPUT_DEF's definition has not been considered"
+
+
+/* TARGET_FORMAT_TYPES ... If defined, this macro is the name of a global
+ * variable containing target-specific format checking information for the
+ * -Wformat option.  The default is to have no target-specific format checks.
+ *
+ * ZipCPU --- Default
+ */
+
+/* TARGET_N_FORMAT_TYPES
+ *
+ * ZipCPU --- Default
+ */
+
+/* TARGET_OVERRIDES_FORMAT_ATTRIBUTES ... If defined, this macro is the name of
+ * a global variable containing target-specific format overrides for the
+ * -Wformat option.  The default is to have no target specific format overrides.
+ *
+ * ZipCPU --- Default
+ */
+
+/* TARGET_OVERRIDEES_FORMAT_ATTRIBUTES
+ * TARGET_OVERRIDEES_FORMAT_ATTRIBUTES_COUNT
+ *
+ * If defined, the (first) macro is the name of a global variable containing
+ * target-specific format overrides for the -Wformat option.
+ */
+/* TARGET_OVERRIDES_FORMAT_INIT ... If defined, this macro specifies the
+ * optional initialization routine for target specific customizations of the
+* system printf and scanf formatter settings.
+ */
+
+/* TARGET_INVALID_ARG_FOR_UNPROTOTYPED_FN(TLIST,FN,VAL) ... If defined, this
+ * macro returns the diagnostic message when it is illegal to pass an argument
+ * VAL to function FN with prototype TLIST.
+ *
+ * ZipCPU---Default.
+ */
+
+/* TARGET_INVALID_CONVERSION
+ * TARGET_INVALID_UNARY_OP
+ * TARGET_INVALID_BINARY_OP
+ * TARGET_INVALID_PARAMETER_TYPE
+ * TARGET_INVALID_RETURN_TYPE
+ * TARGET_PROMOTED_TYPE
+ * TARGET_CONVERT_TO_TYPE
+ * TARGET_USE_JCR_SECTION_TYPE
+ * OBJC_JBLEN
+ * LIBGCC2_UNWIND_ATTRIBUTE
+ * TARGET_UPDATE_STACK_BOUNDARY
+ * TARGET_GET_DRAP_RTX
+ * TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS
+ */
+/* TARGET_CONST_ANCHOR ... On some architectures it can take multiple
+ * instructions to synthesize a constant. If there is another constant already
+ * in a register that is close enough in value then it is preferable that the
+ * new constant is computed from the register using immediate addition or
+ * subtraction.  We accomplish this through CSE.  Besides the value of the
+ * constant we also add a lower and an upper constant anchor to the available
+ * expressions.  These are then queried when encountering new constants.  The
+ * anchors are computed by rounding the constant up and down to a multiple of
+ * the value of TARGET_CONST_ANCHOR.  TARGET_CONST_ANCHOR should be the maximum
+ * positive value accepted by immediate-add plus one.  We currently assume that
+ * the value of TARGET_CONST_ANCHOR is a poewr of 2.  For example, on MIPS,
+ * where add-immediate takes a 16-bit signed value, TARGET_CONST_ANCHOR is set
+ * to 0x8000.  The default value is zero, which disables this optimization.
+ *
+ * ZipCPU---One of the great strengths of the ZipCPU ISA is its ability to
+ * access registers plus immediates.  To use this, we *need* this capability.
+ * So, we define it here. (to 0x20000, or 2^17 because we can handle 18-bits of
+ * signed immediate offsets)
+ *
+ * On ZipCPU---2^17
+ */
+#define        TARGET_CONST_ANCHOR     zip_const_anchor
+
+/* TARGET_ASAN_SHADOW_OFFSET ... Return the offset bitwise ored into shifted
+ * address to get corresponding Address Sanitizer shadow memory address.  NULL
+ * if address Sanitizer is not supported by the target.
+ */
+#define        TARGET_ASAN_SHADOW_OFFSET       NULL
+
+/* TARGET_MEMMODEL_CHECK
+ */
+/* TARGET_ATOMIC_TEST_AND_SET_TRUEVAL ... This value should be set if the result
+ * written by atomic test and set is not exactly 1, i.e. the bool true.
+ */
+/* TARGET_HAS_IFUNC_P ... It returns true if the target supports GNU indirect
+ * functions.  The support includes the assembler, linker, and dynamic linker.
+ * The default value of this hook is based on target's libc.
+ */
+#define        TARGET_HAS_IFUNC_P      hook_bool_void_true
+
+/* TARGET_ATOMIC_ALIGN_FOR_MODE(MODE) ... If defined, this function returns
+ * an appropriate alignment in bits for an atomic object of machine mode
+ * MODE.  If 0 is returned then the default alignment for the specified mode
+ * is used.
+ *
+ * ZipCPU---Both default and 2 would be valid.  We'll stick to the default.
+ */
+
+/* TARGET_ATOMIC_ASSIGN_EXPAND_FENV --- ISO C11 requires atomic compound
+ * assignments that may raise floating-point exceptions to raise exceptions
+ * corresponding to the arithmetic operation whose result was successfully
+ * stored in a compare-and-exchange sequence.  This requires code equivalent to
+ * calls to feholdexcept, feclearexcept and feupdateenv to be generated at
+ * appropriate points in the compare-and-exchange sequence.  This hook should
+ * set *hold to an expression equivalent
+ *
+ * ZipCPU --- ???
+ */
+
+/* TARGET_RECORD_OFFLOAD_SYMBOL ... Used when offloaded functions are seen in
+ * the compilation unit and no named sections are available.  It is called once
+ * for each symbol that must be recorded in the offload function and variable
+ * table.
+ *
+ * ZipCPU --- Offloaded functions?
+ */
+
+/* TARGET_OFFLOAD_OPTIONS
+ *
+ * ZipCPU---none defined
+ */
+
+/* TARGET_SUPPORTS_WIDE_INT ... On older ports, large integers are stored
+ * in CONST_DOUBLE rtl objects.  Newer ports define TARGET_SUPPORTS_WIDE_INT
+ * to be nonzero to indicate that large integers are stored in CONST_WIDE_INT
+ * rtl objects.  The CONST_WIDE_INT allows very large integer constants to be
+ * represented.  CONST_DOUBLE is limited to twice the size of the hosts
+ * HOST_WIDE_INT representation.
+ *
+ * ZipCPU---We don't need these yet, so this isn't yet relevant.  (These ints
+ * are wider than DImode ...)
+ */
+#define        TARGET_SUPPORTS_WIDE_INT        0
+
+
+/* Now, for the prototype functions ...*/
+// These have been moved to zip-protos.h
+
+// extern void zip_init_builtins(void);
+// extern void zip_asm_output_anchor(rtx x);
+// extern bool zip_legitimate_address_p(enum machine_mode mode, rtx x, bool string);
+// extern void zip_asm_trampoline_template(FILE *);
+// extern void zip_initial_elimination_offset(int from, int to);
+// extern void zip_print_operand(FILE *stream, rtx *x, int code);
+// extern void zip_print_operand_address(FILE *stream, rtx *x);
+// extern void zip_asm_output_def(FILE *s, const char *n, const char *v);
+// extern void zip_update_cc_notice(rtx exp, rtx_insn *insn);
+// extern      int zip_address_operand(rtx op);
+// extern      int zip_const_address_operand(rtx op);
+// extern void zip_expand_prologue(void);
+// extern void zip_expand_epilogue(void);
+// extern bool zip_gen_move_rtl(rtx, rtx);
+// extern bool zip_load_address_lod(rtx, rtx);
+// extern bool zip_load_address_sto(rtx, rtx);
+// extern void zip_print_operand(FILE *fp, rtx x, int code);
+// extern void zip_print_operand_address(FILE *fp, rtx x);
+// extern bool zip_use_return_insn(void);
+
+#define        QImode  SImode
+#define        HImode  SImode
+
+#include "insn-modes.h"
+#include "zip-protos.h"
+
+#endif /* GCC_ZIP_H */
+
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/zip/zip.md gcc-5.3.0-zip/gcc/config/zip/zip.md
--- gcc-5.3.0-original/gcc/config/zip/zip.md    1969-12-31 19:00:00.000000000 -0500
+++ gcc-5.3.0-zip/gcc/config/zip/zip.md 2016-03-07 18:21:44.060561458 -0500
@@ -0,0 +1,1736 @@
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; Filename:   zip.md
+;;
+;; Project:    Zip CPU -- a small, lightweight, RISC CPU soft core
+;;
+;; Purpose:    This is the machine description of the Zip CPU as needed by the
+;;             GNU compiler collection (GCC).
+;;
+;;
+;; Creator:    Dan Gisselquist, Ph.D.
+;;             Gisselquist Technology, LLC
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; Copyright (C) 2015, Gisselquist Technology, LLC
+;;
+;; This program is free software (firmware): you can redistribute it and/or
+;; modify it under the terms of  the GNU General Public License as published
+;; by the Free Software Foundation, either version 3 of the License, or (at
+;; your option) any later version.
+;;
+;; This program is distributed in the hope that it will be useful, but WITHOUT
+;; ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
+;; FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+;; for more details.
+;;
+;; License:    GPL, v3, as defined and found on www.gnu.org,
+;;             http://www.gnu.org/licenses/gpl.html
+;;
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;;
+;; - Immediate integer operand constraints
+;;     'I'     -2^22 ... 2^22-1, or -4194304 .. 4194303        (LDI insn)
+;;     'M'     -2^12 ... 2^12-1, or -4096 ... 4095             (MOV offset)
+;;     'N'     -2^14 ... 2^14-1, or -16384 ... 16383           (OpB offset)
+;;     'O'     -2^17 ... 2^17-1, or -131072 ... 131071         (OpB Immediate)
+;;     'R'     0...31                                          (Shift value)
+;; - Memory constraints
+;;     'Q'     Op-B capable references to memory
+;;     'S'     References to constant memory
+;; - Address constraints
+;;     'P'     Op-B capable references to memory
+;;     'T'     Constant memory addresses
+(define_constraint "M"
+  "An 13-bit signed immediate such as a MOV instruction can handle"
+  (and (match_code "const_int")
+       (match_test "(ival < 0x1000) && (ival >= -0x1000)")))
+(define_constraint "N"
+  "An 14-bit signed immediate offset such as an Op-B register offset"
+  (and (match_code "const_int")
+       (match_test "(ival < 0x2000) && (ival >= -0x2000)")))
+(define_constraint "O"
+  "An 18-bit signed immediate such as an Op-B Immediate can handle"
+  (and (match_code "const_int")
+       (match_test "(ival < 0x20000) && (ival >= -0x20000)")))
+(define_constraint "R"
+  "Bits that a value may be shifted"
+  (and (match_code "const_int")
+       (match_test "(ival < 32) && (ival >= 0)")))
+;;
+;
+;
+; Our builtin functions, by identifier
+;
+(define_constants
+       [(UNSPEC_RTU            1)
+       (UNSPEC_HALT            2)
+       (UNSPEC_IDLE            3)
+       (UNSPEC_SYSCALL         4)
+       (UNSPEC_SAVE_CONTEXT    5)
+       (UNSPEC_RESTORE_CONTEXT 6)
+       (UNSPEC_BITREV          7)
+       (UNSPEC_GETCC           8)
+       (UNSPEC_LDILO           9)
+       ])
+;
+;
+; Registers by name
+(define_constants
+  [(RTN_REG            0)      ; Return address register
+   (RTNV_REG           1)      ; Subroutine return value register
+   (AP_REG             10)     ; Hopefully never used
+   (GBL_REG            11)     ; Hopefully never used, but just in case ...
+   (FP_REG             12)
+   (SP_REG             13)
+   (CC_REG             14)
+   (PC_REG             15)
+  ])
+;
+;
+;
+
+;; Predicates
+(define_predicate "zip_const_address_operand_p"
+       (match_code "symbol_ref,const,label_ref,code_label")
+{
+       return zip_const_address_operand(op);
+})
+
+(define_predicate "zip_address_operand_p"
+       (match_code "reg,plus")
+{
+       return zip_pd_address_operand(op);
+})
+
+(define_predicate "zip_mov_operand_p"
+       (match_code "reg,plus")
+{
+       return zip_pd_mov_operand(op);
+})
+
+(define_predicate "zip_memory_operand_p"
+       (match_code "mem")
+{
+       return zip_pd_address_operand(XEXP(op,0));
+})
+
+;; Constraints
+;
+(define_memory_constraint "S"
+       "Any memory referenced by a constant address, possibly unknown at compile time"
+       (and (match_code "mem")
+               (match_test "zip_ct_const_address_operand(XEXP(op,0))")))
+(define_memory_constraint "Q"
+       "Any memory addressed suitably for a load or store instruction"
+       (and (match_code "mem")
+               (match_test "zip_ct_address_operand(XEXP(op,0))")))
+(define_address_constraint "U"
+       "An address suitable for a load or store instruction"
+       (and (match_code "reg,plus")
+               (match_test "zip_ct_address_operand(op)")))
+(define_address_constraint "T"
+       "Any constant address, to include those made by symbols unknown at compile time"
+       (and (match_code "label_ref,code_label,symbol_ref,const")
+               (match_test "zip_ct_const_address_operand(op)")))
+;
+;
+;; Attributes
+;
+(define_attr "predicable"  "no,yes" (const_string "yes"))
+(define_attr "conditional" "no,yes" (const_string "no"))
+(define_attr "ccresult" "set,unknown,unchanged,validzn" (const_string "set"))
+;
+; Mode attributes
+; (define_mode_iterator ZI [QI HI SI])
+; (define_mode_attr zipa [(QI "") (HI "") (SI "")])
+(define_mode_iterator ZI [SI])
+(define_mode_attr zipa [(SI "")])
+;
+;
+;
+;; Instructions
+;
+; (define_insn
+;      optional name
+;      RTL template -- a vector of incomplete RTL expressions describing the
+;              semantics of the instruction.  It is incomplete because it may
+;              contain match_operand, match_operator, and match_dup expressions
+;      The condition --- contains a C expression, may be an empty string
+;      output template or output statement--fragment of C code returning a str
+;      Attributes --
+;      )
+;
+; (match_operand:m n predicate constraint)
+;      Placeholder for operand #n of the instruction
+;      Predicate       string that is the name of a fucntion w/ 2 arguments:
+;                              (expression, machine mode)
+;              we can build functions:
+;                      "isregister"    to describe a register
+;                      "isimmediate"   to describe an immediate
+;                      "offsetreg"     to describe a register plus offset
+;                      "anyregister"   to describe *ANY* register (uRx or Rx)
+;              But ... functions "address_operand", "immediate_operand",
+;                      "register_operand", "indirect_operand"
+;              "comparison_operatot" and "ordered_comparison_operator"
+;              are also available--be aware, they include more comparisons
+;              than Zip CPU can do.
+;
+;
+;
+;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; Move instructions: both
+;      (arbitrary) from variables to variables, but this gets
+;              expanded into:
+;      from registers to registers
+;      from immediates to registers
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;
+;
+;
+(define_expand "mov<mode>"
+       [(set (match_operand:ZI 0 "nonimmediate_operand" "") ; =r,Q,r,r")
+               (match_operand:ZI 1 "general_operand" ""))] ; r,r,Q,i"))]
+       ""
+       {/* Everything except mem=const or mem=mem can be done easily */
+       if (zip_gen_move_rtl(operands[0], operands[1]))
+               DONE;
+       else internal_error("%s", "Zip/No usable movsi expansion\n");
+       }
+       [(set_attr "ccresult" "unchanged")])
+(define_insn "mov<mode>_reg"   ; Register to register move
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (match_operand:ZI 1 "register_operand" "r"))]
+       ""
+       "MOV    %1,%0"
+       [(set_attr "ccresult" "unchanged")])
+(define_insn "mov<mode>_reg_off"       ; Register to register move
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (plus:ZI (match_operand:ZI 1 "register_operand" "r")
+                       (match_operand:ZI 2 "const_int_operand" "M")))]
+       ""
+       "MOV    %2(%1),%0"
+       [(set_attr "ccresult" "unchanged")])
+;(define_insn "mov<mode>_lod"  ; Load from memory
+;      [(set (match_operand:ZI 0 "register_operand" "=r")
+;              (match_operand:ZI 1 "zip_memory_operand_p" "Q"))]
+;      ""
+;      "LOD    %1,%0"
+;      [(set_attr "ccresult" "unchanged")])
+;(define_insn "mov<mode>_sto"  ; Store into memory
+;      [(set (match_operand:ZI 0 "zip_memory_operand_p" "=Q")
+;              (match_operand:ZI 1 "register_operand" "r"))]
+;      ""
+;      "STO    %1,%0"
+;      [(set_attr "ccresult" "unchanged")])
+(define_expand "mov<mode>_lod" ; Load from memory
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (match_operand:ZI 1 "zip_memory_operand_p" "Q"))]
+       "")
+(define_insn "*movsi_lod"
+       [(set (match_operand:SI 0 "register_operand" "=r")
+               (mem:SI (match_operand:SI 1 "register_operand" "r")))]
+       ""
+       "LOD\t%1,%0"
+       [(set_attr "predicable" "yes") (set_attr "ccresult" "unchanged")])
+(define_insn "*movsi_lod_off"
+       [(set (match_operand:SI 0 "register_operand" "=r")
+               (mem:SI (plus:SI (match_operand:SI 1 "register_operand" "r")
+                       (match_operand:SI 2 "const_int_operand" "N"))))]
+       ""
+       "LOD\t%2(%1),%0"
+       [(set_attr "predicable" "yes") (set_attr "ccresult" "unchanged")])
+(define_expand "mov<mode>_sto" ; Store into memory
+       [(set (match_operand:ZI 0 "zip_memory_operand_p" "=Q")
+               (match_operand:ZI 1 "register_operand" "r"))]
+       "")
+(define_insn "*movsi_sto"
+       [(set (mem:SI (match_operand:SI 0 "register_operand" "r"))
+               (match_operand:SI 1 "register_operand" "r"))]
+       ""
+       "STO\t%1,(%0)"
+       [(set_attr "predicable" "yes") (set_attr "ccresult" "unchanged")])
+(define_insn "*movsi_sto_off"
+       [(set (mem:SI (plus:SI
+                       (match_operand:SI 0 "register_operand" "r")
+                       (match_operand:SI 1 "const_int_operand" "N")))
+               (match_operand:SI 2 "register_operand" "r"))]
+       ""
+       "STO\t%2,%1(%0)"
+       [(set_attr "predicable" "yes") (set_attr "ccresult" "unchanged")])
+(define_insn "mov<mode>_ldi"   ; Load immediate
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (match_operand:ZI 1 "immediate_operand" "ipU"))]
+       ""
+       "LDI    %1,%0"
+       [(set_attr "ccresult" "unchanged")])
+;
+;
+;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; Load and store multiple values
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;
+; So far, from the code I've seen from GCC's output,
+; these instructions do not appear to be necessary.
+;
+;(define_insn "load_multiple"
+;      for(a=0; a<%2; a++)
+;              LOD a(%1),%0+a
+;(define_insn "store_multiple"
+;      for(a=0; a<%2; a++)
+;              STO %0+a,a(%1)
+; pushsi -- Do not define, compiler will work around it nicely w/o our help
+;
+;
+;
+;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; General arithmetic instructions
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;
+;
+;
+;
+(define_insn "add<mode>3" ; Fastest/best instruction always goes first
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (plus:ZI (match_operand:ZI 1 "register_operand" "0")
+                       (match_operand:ZI 2 "nonmemory_operand" "rO")))
+       ]
+       ""
+       "ADD    %2,%0"
+       [(set_attr "ccresult" "set")])
+(define_insn "add<mode>3_off" ; Fastest/best instruction always goes first
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (plus:ZI (match_operand:ZI 1 "register_operand" "0")
+                       (plus:ZI (match_operand:ZI 2 "register_operand" "r")
+                               (match_operand:ZI 3 "const_int_operand" "N"))))
+       ]
+       ""
+       "ADD    %3+%2,%0"
+       [(set_attr "ccresult" "set")])
+;
+;
+;
+(define_expand "sub<mode>3"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (minus:ZI (match_operand:ZI 1 "register_operand" "0")
+                       (match_operand:ZI 2 "nonmemory_operand" "")))
+       ])
+(define_insn "*subsi3"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (minus:ZI (match_operand:ZI 1 "register_operand" "0")
+                       (match_operand:ZI 2 "nonmemory_operand" "rO")))
+       ]
+       ""
+       "SUB    %2,%0"
+       [(set_attr "ccresult" "set")])
+(define_insn "sub<mode>3_off"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (minus:ZI (match_operand:ZI 1 "register_operand" "0")
+                       (plus:ZI (match_operand:ZI 2 "register_operand" "%r")
+                               (match_operand:ZI 3 "const_int_operand" "N"))))
+       ]
+       ""
+       "SUB    %3+%2,%0"
+       [(set_attr "ccresult" "set")])
+(define_insn "mul<mode>3"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (mult:ZI (match_operand:ZI 1 "register_operand" "%r")
+                       (match_operand:ZI 2 "register_operand" "r")))
+       (clobber (match_scratch:ZI 3 "=r"))]
+       ; "(R0 != R1)&&(R0 != R2)&&(R0!=R3)&&(R1!=R2)&&(R1=R3)&&(R2!=R3)"
+       ""
+       "MOV    %1,%0
+       MPYS    %2,%0
+       MOV     %1,%3
+       ROL     16,%3
+       MPYS    %2,%3
+       ROL     16,%3
+       AND     0x0ffff,%3
+       ADD     %3,%0
+       MOV     %2,%3
+       ROL     16,%3
+       MPYS    %1,%3
+       ROL     16,%3
+       AND     0x0ffff,%3
+       ADD     %3,%0"
+       [(set_attr "ccresult" "unknown")])
+
+(define_insn "div<mode>3"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (div:ZI (match_operand:ZI 1 "register_operand" "0")
+                       (match_operand:ZI 2 "nonmemory_operand" "rO")))]
+       ""
+       "DIVS   %2,%0"
+       [(set_attr "ccresult" "set")])
+(define_insn "div<mode>3_off"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (div:ZI (match_operand:ZI 1 "register_operand" "0")
+                       (plus:ZI (match_operand:ZI 2 "register_operand" "r")
+                               (match_operand:ZI 3 "const_int_operand" "N"))))]
+       ""
+       "DIVS   %3+%2,%0"
+       [(set_attr "ccresult" "set")])
+(define_insn "udiv<mode>3"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (udiv:ZI (match_operand:ZI 1 "register_operand" "0")
+                       (match_operand:ZI 2 "nonmemory_operand" "rO")))]
+       ""
+       "DIVU   %2,%0"
+       [(set_attr "ccresult" "set")])
+(define_insn "udiv<mode>3_off"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (udiv:ZI (match_operand:ZI 1 "register_operand" "0")
+                       (plus:ZI (match_operand:ZI 2 "register_operand" "r")
+                               (match_operand:ZI 3 "const_int_operand" "N"))))]
+       ""
+       "DIVU   %3+%2,%0"
+       [(set_attr "ccresult" "set")])
+;;
+;; modsi3
+;; umodsi3
+;;
+(define_insn "umin<mode>3"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (umin:ZI (match_operand:ZI 1 "register_operand" "%0")
+                       (match_operand:ZI 2 "register_operand" "r")))
+       ]
+       ""
+       "CMP    %0,%2
+       MOV.C   %2,%0"
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+(define_insn "umax<mode>3"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (umax:ZI (match_operand:ZI 1 "register_operand" "%0")
+                       (match_operand:ZI 2 "register_operand" "r")))
+       ]
+       ""
+       "CMP    %2,%0
+       MOV.C   %2,%0"
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+(define_insn "smin<mode>3"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (smin:ZI (match_operand:ZI 1 "register_operand" "%0")
+                       (match_operand:ZI 2 "register_operand" "r")))
+       ]
+       ""
+       "CMP    %2,%0
+       MOV.GT  %2,%0"
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+(define_insn "smax<mode>3"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (smax:ZI (match_operand:ZI 1 "register_operand" "%0")
+                       (match_operand:ZI 2 "register_operand" "r")))
+       ]
+       ""
+       "CMP    %0,%2
+       MOV.LT  %2,%0"
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+(define_insn "and<mode>3"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (and:ZI (match_operand:ZI 1 "register_operand" "%0")
+                       (match_operand:ZI 2 "nonmemory_operand" "rO")))
+       ]
+       ""
+       "AND    %2,%0"
+       [(set_attr "ccresult" "set")])
+(define_insn "and<mode>3_off"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (and:ZI (match_operand:ZI 1 "register_operand" "0")
+                       (plus:ZI (match_operand:ZI 2 "register_operand" "r")
+                               (match_operand:ZI 3 "const_int_operand" "N"))))
+       ]
+       ""
+       "AND    %3+%2,%0"
+       [(set_attr "ccresult" "set")])
+(define_insn "ior<mode>3"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (ior:ZI (match_operand:ZI 1 "register_operand" "%0")
+                       (match_operand:ZI 2 "nonmemory_operand" "rO")))
+       ]
+       ""
+       "OR     %2,%0"
+       [(set_attr "ccresult" "set")])
+(define_insn "ior<mode>3_off"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (ior:ZI (match_operand:ZI 1 "register_operand" "0")
+                       (plus:ZI (match_operand:ZI 2 "register_operand" "r")
+                               (match_operand:ZI 3 "nonmemory_operand" "N"))))
+       ]
+       ""
+       "OR     %3+%2,%0"
+       [(set_attr "ccresult" "set")])
+(define_insn "xor<mode>3"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (xor:ZI (match_operand:ZI 1 "register_operand" "%0")
+                       (match_operand:ZI 2 "nonmemory_operand" "rO")))
+       ]
+       ""
+       "XOR    %2,%0"
+       [(set_attr "ccresult" "set")])
+(define_insn "xor<mode>3_off"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (xor:ZI (match_operand:ZI 1 "register_operand" "0")
+                       (plus:ZI (match_operand:ZI 2 "register_operand" "r")
+                               (match_operand:ZI 3 "nonmemory_operand" "N"))))
+       ]
+       ""
+       "XOR    %3+%2,%0"
+       [(set_attr "ccresult" "set")])
+;(define_insn "addv<mode>4"
+       ;[(set (match_operand:ZI 0 "register_operand" "=r")
+               ;(plus:ZI (match_operand:ZI 1 "register_operand" "%r")
+                       ;(match_operand:ZI 2 "general_operand" "rO")))
+       ;(set (pc) (if_then_else (eq (cc0) (const_int 0))
+                       ;(label_ref (match_operand 3))
+                       ;(pc)))]
+       ;""
+       ;"MOV   %1,%0
+       ;ADD    %2,%0
+       ;BV     %3"
+       ;[(set_attr "predicable" "no") (set_attr "ccresult" "set")])
+;;(define_insn "subvsi4"
+;;     MOV     %1,%0
+;;     SUB     %2,%0
+;;     BV      %3
+;;(mulvsi4)
+;;(define_insn "uaddvsi4"
+;;     ADD     %2,%0
+;;     BC      %3
+;;(define_insn "usubvsi4"
+;;     MOV     %1,%0
+;;     SUB     %2,%0
+;;     BC      %3
+;;
+;; (define_insn "umulvsi4"
+;;     ... ???)
+;;
+(define_insn "ashr<mode>3"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (ashiftrt:ZI (match_operand:ZI 1 "register_operand" "0")
+                       (match_operand:ZI 2 "nonmemory_operand" "rR")))]
+       ""
+       "ASR    %2,%0"
+       [(set_attr "ccresult" "set")])
+(define_insn "lshr<mode>3"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (lshiftrt:ZI (match_operand:ZI 1 "register_operand" "0")
+                       (match_operand:ZI 2 "register_operand" "rR")))]
+       ""
+       "LSR    %2,%0"
+       [(set_attr "ccresult" "set")])
+(define_insn "rotl<mode>3"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (rotate:ZI (match_operand:ZI 1 "register_operand" "0")
+                       (match_operand:ZI 2 "nonmemory_operand" "rR")))]
+       ""
+       "ROL    %2,%0"
+       [(set_attr "ccresult" "set")])
+;
+(define_insn "neg<mode>2"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (neg:ZI (match_operand:ZI 1 "register_operand" "r")))
+       ]
+       ""
+       "NEG    %1,%0"
+       [(set_attr "ccresult" "validzn")])
+(define_insn "abs<mode>2"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (abs:ZI (match_operand:ZI 1 "register_operand" "0")))
+       ]
+       ""
+       "TEST   %0
+       NEG.LT  %0"
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+(define_insn "popcount<mode>2"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (popcount:ZI (match_operand:ZI 1 "register_operand" "r")))
+       ]
+       ""
+       "POPC   %1,%0"
+       [(set_attr "ccresult" "set")])
+(define_expand "parity<mode>2"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (popcount:ZI (match_operand:ZI 1 "register_operand" "r")))
+       (set (match_dup:ZI 0) (and:ZI (match_dup:ZI 0) (const_int -2)))
+       ])
+(define_insn "one_cmpl<mode>2"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (not:ZI (match_operand:ZI 1 "register_operand" "0")))
+       ]
+       ""
+       "XOR    -1,%0"
+       [(set_attr "ccresult" "set")])
+;
+;
+;
+;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; General arithmetic instructions -- double words
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;
+;
+;
+(define_insn "adddi3" ; Fastest/best instruction always goes first
+       [(set (match_operand:DI 0 "register_operand" "=r")
+               (plus:DI (match_operand:DI 1 "register_operand" "0")
+                       (match_operand:DI 2 "register_operand" "r")))
+       ]
+       ""
+       "ADD    %L2,%L0\n\tADD.C\t1,%H0\n\tADD\t%H2,%H0"
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+;
+(define_insn "subdi3"
+       [(set (match_operand:DI 0 "register_operand" "=r")
+               (minus:DI (match_operand:DI 1 "register_operand" "0")
+                       (match_operand:DI 2 "register_operand" "r")))
+       ]
+       ""
+       "SUB    %L2,%L0\n\tSUB.C\t1,%H0\n\tSUB\t%H2,%H0"
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+;
+(define_insn "anddi3"
+       [(set (match_operand:DI 0 "register_operand" "=r")
+               (and:DI (match_operand:DI 1 "register_operand" "%0")
+                       (match_operand:DI 2 "register_operand" "r")))
+       ]
+       ""
+       "AND    %L2,%L0\n\tAND\t%H2,%H0"
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+;
+(define_insn "iordi3"
+       [(set (match_operand:DI 0 "register_operand" "=r")
+               (ior:DI (match_operand:DI 1 "register_operand" "%0")
+                       (match_operand:DI 2 "register_operand" "r")))
+       ]
+       ""
+       "OR     %2,%0\n\tOR\t%H2,%H0"
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+;
+(define_insn "xordi3"
+       [(set (match_operand:DI 0 "register_operand" "=r")
+               (xor:DI (match_operand:DI 1 "register_operand" "%0")
+                       (match_operand:DI 2 "register_operand" "r")))
+       ]
+       ""
+       "XOR    %2,%0\n\tXOR\t%H2,%H0"
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+;
+(define_insn "negdi2"
+       [(set (match_operand:DI 0 "register_operand" "=r")
+               (neg:DI (match_operand:DI 1 "register_operand" "0")))]
+       ""
+       "XOR    -1,%L0\n\tXOR\t-1,%H0\n\tADD\t1,%L0\n\tADD.C\t1,%H0"
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+;
+(define_insn "absdi2"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (abs:ZI (match_operand:ZI 1 "register_operand" "0")))
+       (clobber (match_scratch:SI 2 "=r"))]
+       ""
+       "CLR    %2
+       TEST    %H0             ; Problem, we can't tell conditions
+       LDILO.LT        1,%2
+       XOR.LT  -1,%L0
+       XOR.LT  -1,%H0
+       ADD     %2,%L0
+       ADD.C   %1,%HI"
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+(define_insn "one_cmpldi2"
+       [(set (match_operand:DI 0 "register_operand" "=r")
+               (not:DI (match_operand:DI 1 "register_operand" "0")))
+       ]
+       ""
+       "XOR    -1,%L0\n\tXOR\t-1,%H0"
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+(define_insn "umindi3"
+       [(set (match_operand:DI 0 "register_operand" "=r")
+               (umin:DI (match_operand:DI 1 "register_operand" "%0")
+                       (match_operand:DI 2 "register_operand" "r")))
+       ]
+       ""
+       "CMP    %H0,%H2
+       CMP.Z   %L0,%L2
+       MOV.C   %H2,%H0
+       MOV.C   %L2,%L0"
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+(define_insn "umaxdi3"
+       [(set (match_operand:DI 0 "register_operand" "=r")
+               (umax:DI (match_operand:DI 1 "register_operand" "%0")
+                       (match_operand:DI 2 "register_operand" "r")))
+       ]
+       ""
+       "CMP    %H2,%H0
+       CMP.Z   %L2,%L0
+       MOV.C   %H2,%H0
+       MOV.C   %L2,%L0"
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+(define_insn "popcountdi2"
+       [(set (match_operand:SI 0 "register_operand" "=r")
+               (popcount (match_operand:DI 1 "register_operand" "r")))
+       (clobber (match_scratch:SI 2 "=r"))
+       ]
+       ""
+       "POPC   %L1,%0
+       POPC    %H1,%2
+       ADD     %2,%0"
+       [(set_attr "predicable" "no") (set_attr "ccresult" "set")])
+(define_expand "paritydi2"
+       [(set (match_operand:SI 0 "register_operand" "=r")
+               (popcount (match_operand:DI 1 "register_operand" "r")))
+       (set (match_dup 0) (and:SI (match_dup 0) (const_int -2)))
+       ])
+;
+; Still missing DI instructions for smin:DI, smax:DI, movdicc, adddicc,
+;      mult:di, div:di, divu:di
+;
+;
+;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; Conditional arithmetic instructions
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;
+;
+;
+;
+(define_expand "cstore<mode>4" ; Store 0 or 1 in %0 based on cmp between %2&%3
+       [(set (cc0) (compare (match_operand:ZI 2 "register_operand" "r")
+               (match_operand:ZI 3 "nonmemory_operand" "rO")))
+       (set (match_operand:ZI 0 "register_operand" "=r") (if_then_else:ZI
+                       (match_operator 1 "ordered_comparison_operator"
+                                       [(cc0) (const_int 0)])
+                       (const_int 1) (const_int 0)))]
+       ""
+       )
+(define_insn "cstoredi4" ; Store 0 or 1 in %0 based on cmp between %2&%3
+       [(set (match_operand:SI 0 "register_operand" "=r")
+               (if_then_else:SI (match_operator 1 "ordered_comparison_operator"
+                       [(compare (match_operand:DI 2 "register_operand" "r")
+                               (match_operand:DI 3 "register_operand" "r"))])
+                       (const_int 1) (const_int 0)))]
+       ""
+       {
+               switch(GET_CODE(operands[1])) {
+               case EQ:        return "CLR\t%0\n\tCMP\t%H3,%H2\n\tCMP.Z\t%L3,%L2\n\tLDILO.Z\t1,%0\n";
+               case NE:        return "CLR\t%0\n\tCMP\t%H3,%H2\n\tCMP.NZ\t%L3,%L2\n\tLDILO.NZ\t1,%0\n";
+               case LTU:       return "CLR\t%0\n\tCMP\t%H3,%H2\n\tCMP.Z\t%L3,%L2\n\tLDILO.C\t1,%0\n";
+               case LEU:       return "CLR\t%0\n\tCMP\t%H3,%H2\n\tCMP.Z\t%L3,%L2\n\tLDILO.C\t1,%0\n\tLDILO.Z\t1,%0\n";
+               case GTU:       return "CLR\t%0\n\tCMP\t%H2,%H3\n\tCMP.Z\t%L2,%L3\n\tLDILO.C\t1,%0\n";
+               case GEU:       return "CLR\t%0\n\tCMP\t%H2,%H3\n\tCMP.Z\t%L2,%L3\n\tLDILO.C\t1,%0\n\tLDILO.Z\t1,%0\n";
+               default:
+                       gcc_unreachable();
+               }
+       }
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+;
+;
+;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; Comparison instructions, both compare and test
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;
+;
+;
+;; This will only work so well, since the direction of the compare is
+;; important in unsigned compares.
+;;
+(define_insn "cmp<mode>"
+       [(set (cc0) (compare (match_operand:ZI 0 "register_operand" "r")
+               (match_operand:ZI 1 "nonmemory_operand" "rO")))]
+       ""
+       "CMP\t%1,%0"
+       [(set_attr "ccresult" "set")])
+(define_insn "cmp<mode>_off"
+       [(set (cc0) (compare (match_operand:ZI 0 "register_operand" "r")
+               (plus:ZI (match_operand:ZI 1 "register_operand" "r")
+                       (match_operand:ZI 2 "const_int_operand" "N"))))]
+       ""
+       "CMP\t%2+%1,%0"
+       [(set_attr "ccresult" "set")])
+(define_insn "test<mode>"
+       [(set (cc0) (compare (and:ZI (match_operand:ZI 0 "register_operand" "r")
+                               (match_operand:ZI 1 "nonmemory_operand" "rO"))
+                       (const_int 0)))]
+       ""
+       "TEST   %1,%0"
+       [(set_attr "ccresult" "set")])
+(define_insn "test<mode>_off"
+       [(set (cc0) (compare (and:ZI (match_operand:ZI 0 "register_operand" "r")
+                               (plus:ZI
+                                 (match_operand:ZI 1 "register_operand" "r")
+                                 (match_operand:ZI 2 "const_int_operand" "N")))
+                       (const_int 0)))]
+       ""
+       "TEST   %2+%1,%0"
+       [(set_attr "ccresult" "set")])
+(define_insn "nop"
+       [(const_int 0)]
+       ""
+       "NOOP"
+       [(set_attr "ccresult" "unchanged")])
+;
+;
+;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; Conditional execution predicates
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;
+; Sadly, these aren't complete like they should be.  Although these are all of
+; the conditional execution prefixes that the Zip CPU supports, GCC looks for
+; other conditions then these.  That is, (cond_exec ...) is not as well
+; recognized as (if_then_else ...).  So we have to duplicate things to support
+; both methods.
+;
+(define_cond_exec
+       [(ne (cc0) (const_int 0))]
+       ""
+       "(NZ)"
+       [(set_attr "conditional" "yes")])
+(define_cond_exec
+       [(lt (cc0) (const_int 0))]
+       ""
+       "(LT)"
+       [(set_attr "conditional" "yes")])
+(define_cond_exec
+       [(eq (cc0) (const_int 0))]
+       ""
+       "(Z)"
+       [(set_attr "conditional" "yes")])
+(define_cond_exec
+       [(gt (cc0) (const_int 0))]
+       ""
+       "(GT)"
+       [(set_attr "conditional" "yes")])
+(define_cond_exec
+       [(ge (cc0) (const_int 0))]
+       ""
+       "(GE)"
+       [(set_attr "conditional" "yes")])
+(define_cond_exec
+       [(ltu (cc0) (const_int 0))]
+       ""
+       "(C)"
+       [(set_attr "conditional" "yes")])
+;
+;
+;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; Conditional move instructions, since these won't accept conditional
+;;     execution RTL
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;
+; // Look for #define HAVE_conditional_move to understand how these might be
+; // used.
+;
+(define_insn "set_zero_or_one<mode>"
+       [(set (match_operand:ZI 0 "register_operand" "=r") (if_then_else:ZI
+                       (match_operator 1 "ordered_comparison_operator"
+                                       [(cc0) (const_int 0)])
+                       (const_int 1) (const_int 0)))]
+       ""
+       { return (zip_set_zero_or_one(operands[1], operands[0]));
+       }
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unchanged")])
+(define_insn "mov<mode>cc"
+       [(set (match_operand:ZI 0 "register_operand" "=r")
+               (if_then_else:ZI (match_operator 1 "ordered_comparison_operator"
+                       [(cc0) (const_int 0)])
+                       (match_operand:ZI 2 "general_operand" "rio")
+                       (match_operand:ZI 3 "nonmemory_operand" "rio")))]
+       ""
+       {
+       return zip_movsicc(operands[0], operands[1], operands[2], operands[3]);
+       }
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unchanged")])
+(define_insn "add<mode>cc"
+       [(set (match_operand:ZI 0 "register_operand" "=r,r")
+               (if_then_else:ZI (match_operator 1 "ordered_comparison_operator"
+                       [(cc0) (const_int 0)])
+                       (plus:ZI (match_operand:ZI 2 "register_operand" "0,r")
+                               (match_operand:ZI 3 "nonmemory_operand" "rO,M"))
+                       (match_dup 0)))]
+       ""
+       {
+       return zip_addsicc(operands[0], operands[1], operands[2], operands[3]);
+       }
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unchanged")])
+;
+;
+;(define_expand "mov<mode>cc"
+;      [(set (match_operand:ZI 0 "general_operand" "=rm,rm,r,r,r"
+;              (if_then_else:ZI (match_operator 1 "ordered_comparison_operator"
+;                      [(cc0) (const_int 0)])
+;                      (match_operand:ZI 2 "general_operand" "0,r,0,m,rm")
+;                      (match_operand:ZI 3 "general_operand" "r,0,m,0,rm"))))]
+;      )
+;
+;
+;
+; While an interesting approach, the following suffers from problems when the
+; move amount is constant.  At anything less than four, moves should not require
+; the movmemSI instruction.  At anything greater, if constant, the initial tests
+; are not required and should result in a hardcoded result.  Practically,
+; though, this should really be a define_expand instruction, calling on the
+; RTX's of all the respective subinstructions found below.
+;
+;(define_insn "movmemSI"
+;      [(parallel [(set (mem:BLK (match_operand 0 "register_operand" "+r"));Dst
+;                      (mem:BLK (match_operand 1 "register_operand" "+r")));Src
+;              (use (match_operand:SI 2 "register_operand" "+r"))]); Length
+;              (match_operand 3 "" "")                 ;Alignment
+;              (clobber (match_scratch:SI 4 "=r"))
+;              (clobber (match_scratch:SI 5 "=r"))
+;              (clobber (match_scratch:SI 6 "=r"))
+;              (clobber (match_scratch:SI 7 "=r"))]
+;      ""
+;      "TEST\t1,%2
+;      LOD.NZ\t%1,%4
+;      STO.NZ\t%4,%0
+;      ADD.NZ\t1,%0
+;      ADD.NZ\t1,%1
+;      TEST\t2,%2
+;      LOD.NZ\t%1,%4
+;      LOD.NZ\t1(%1),%5
+;      STO.NZ\t%4,(%0)
+;      STO.NZ\t%4,1(%0)
+;      ADD.NZ\t2,%0
+;      ADD.NZ\t2,%1
+;      AND\t-4,%2
+;      BZ\t.Lskp%=\n.Ltop%=:
+;      LOD\t(%1),%4
+;      LOD\t1(%1),%5
+;      LOD\t2(%1,%6
+;      LOD\t3(%1),%7
+;      STO\t%4,(%1)
+;      STO\t%5,1(%1)
+;      STO\t%6,2(%1)
+;      STO\t%7,3(%1)
+;      SUB\t4,%2
+;      BZ\t%.Lskp%=
+;      BRA\t.Ltop%=\n.Lskp%=:"
+;      [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+;(define_insn "setmemsi"
+;      [(parallel
+;              [(set (mem:BLK
+;                      (match_operand 0 "register_operand" "+r")); Destination
+;                      (match_operand:SI 2 "register_operand" "r")) ; Source
+;              (use (match_operand:SI 1 "register_operand" "+r"))])  ; Length
+;              (match_operand 3 "" "")]
+;      ""
+;      "TEST\t1,%1
+;      STO.NZ\t%2,(%0)
+;      ADD.NZ\t1,%0
+;      TEST\t2,%1
+;      STO.NZ\t%2,(%0)
+;      STO.NZ\t%2,1(%0)
+;      ADD.NZ\t2,%0
+;      AND\t-4,%1
+;      BZ\t.Lskp%=\n.Ltop%=:\n
+;      STO\t%2,(%0)
+;      STO\t%2,1(%0)
+;      STO\t%2,2(%0)
+;      STO\t%2,3(%0)
+;      SUB\t%4,%0
+;      BZ\t.Lskp%=
+;      BRA\t.Ltop%=\n.Lskp%=:"
+;      [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+;;
+;
+;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; Control flow instructions
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;
+;
+;
+(define_expand "jump"
+       [(set (pc)
+               (label_ref (match_operand 0 "" "")))]); // Was general-op, "mro"
+(define_insn "jump_const"      ; Must be modeless, VOIDmode, not SI or any othr
+       [(set (pc)      ; Otherwise it won't accept jumps to labels
+               (match_operand:SI 0 "zip_const_address_operand_p" ""))]
+       ""
+       "BRA    %0"
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unchanged")])
+(define_insn "jump_label"      ; Must be modeless, VOIDmode, not SI or any othr
+       [(set (pc)      ; Otherwise it won't accept jumps to labels
+               (label_ref (match_operand 0 "" "")))]
+       ""
+       "BRA    %0"
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unchanged")])
+;
+; This is really the same thing as an indirect jump ... the big difference
+; is that the zip_address_operand_p checks for an "N" type condition, not an
+; "M" type condition ... a bug, but one that works for now.  (The assembler
+; should be able to catch and except on it ...)
+;
+; #warning "This predicate is appropriate for non-moves, but not for JMPs"
+(define_insn "jump_variable"
+       [(set (pc)
+               (match_operand:SI 0 "zip_address_operand_p" ""))]
+       ""
+       "JMP    %0"
+       [(set_attr "ccresult" "unchanged")])
+;
+; Indirect jumps ... both to registers, and registers plus offsets
+;
+(define_insn "indirect_jump"
+       [(set (pc)
+               (match_operand:SI 0 "register_operand" "r"))]
+       ""
+       "JMP    %0"
+       [(set_attr "ccresult" "unchanged")])
+(define_insn "indirect_jump_mem"
+       [(set (pc) (match_operand:SI 0 "zip_memory_operand_p" "o"))]
+       ""
+       "LOD    %0,PC"
+       [(set_attr "ccresult" "unchanged")])
+(define_insn "indirect_jump_off"
+       [(set (pc)
+               (plus:SI (match_operand:SI 0 "register_operand" "r")
+                       (match_operand:SI 1 "const_int_operand" "M")))]
+       ""
+       "JMP    %1(%0)"
+       [(set_attr "ccresult" "unchanged")])
+;;
+; cbranchsi4
+;;     Op 0 = the comparison operator (le,lt,eq,ne,gt,ge,and usgn ltu,geu,etc.)
+;;     Op 1&2 the operands of the compare instruction
+;;     Op 3 is the jump label
+;;
+;;
+;; #warning Need to adjust this so that the "LT" code doesnt get generated ...
+;;
+(define_expand "cbranch<mode>4"
+       [(set (cc0) (compare (match_operand:ZI 1 "register_operand" "r")
+               (match_operand:ZI 2 "nonmemory_operand" "rO")))
+       (set (pc) (if_then_else (match_operator 0 "ordered_comparison_operator"
+                       [(cc0) (const_int 0)])
+                       (label_ref (match_operand 3 "" ""))
+                       (pc)))]
+       ""
+       {
+               // extern void zip_debug_rtx(const_rtx);
+               //; Two branches give us no end of difficulty when implementing.
+               //; Let's check for these two branch codes, and swap the
+               //; comparison to simplify them.
+               // fprintf(stderr, "CBRANCH\n");
+               // zip_debug_rtx(operands[0]);
+               // zip_debug_rtx(operands[1]);
+               // zip_debug_rtx(operands[2]);
+               // zip_debug_rtx(operands[3]);
+               if ((GET_CODE(operands[0])==GTU)&&(REG_P(operands[2]))) {
+                       // fprintf(stderr, "CBRANCH:(GTU,?,REG,?)\n");
+                       emit_insn(gen_rtx_SET(VOIDmode, cc0_rtx,
+                               gen_rtx_COMPARE(VOIDmode, operands[2], operands[1])));
+                       emit_jump_insn(gen_cbranch_jmp_ltu(operands[3]));
+                       DONE;
+               } else if((GET_CODE(operands[0])==GEU)&&(REG_P(operands[2]))) {
+                       // fprintf(stderr, "CBRANCH:(GEU,?,REG,?)\n");
+                       emit_insn(gen_rtx_SET(VOIDmode, cc0_rtx,
+                               gen_rtx_COMPARE(VOIDmode, operands[2], operands[1])));
+                       emit_jump_insn(gen_cbranch_jmp_leu(operands[3]));
+                       DONE;
+               } // ; Otherwise ... just handle the branch normally
+
+               //; Except ... we can do better for some instructions, such as
+               //; LE.  While we could exchange CMP Rx,Ry into -1(Rx),Ry, it
+               //; would be difficult to explain to users why MIN_INT didn't
+               //; compare properly.  Hence we only adjust constant integers.
+               //;
+               if ((GET_CODE(operands[0])==LE)
+                               &&(CONST_INT_P(operands[2]))
+                               &&(INTVAL(operands[2])>(1<<17)-2)) {
+                       // fprintf(stderr, "CBRANCH:(LE,?,#,?)\n");
+                       emit_insn(gen_rtx_SET(VOIDmode, cc0_rtx,
+                               gen_rtx_COMPARE(VOIDmode, operands[1],
+                                       GEN_INT(INTVAL(operands[2])+1))));
+                       emit_insn(gen_cbranch_jmp_lt(operands[3]));
+                       DONE;
+               } else if ((GET_CODE(operands[0])==LEU)
+                               &&(CONST_INT_P(operands[2]))
+                               &&(INTVAL(operands[2])<(1<<17)-2)) {
+                       // fprintf(stderr, "CBRANCH:(LEU,?,#,?)\n");
+                       emit_insn(gen_rtx_SET(VOIDmode, cc0_rtx,
+                               gen_rtx_COMPARE(VOIDmode, operands[1],
+                                       GEN_INT(INTVAL(operands[2])+1))));
+                       emit_insn(gen_cbranch_jmp_ltu(operands[3]));
+                       DONE;
+               }
+       })
+(define_insn "cbranch_jmp_eq"
+       [(set (pc) (if_then_else (eq (cc0) (const_int 0))
+                (label_ref (match_operand 0 "" ""))
+                (pc)))]
+       ""
+       "BZ\t%0"
+       [(set_attr "predicable" "no")
+               (set_attr "conditional" "yes")
+               (set_attr "ccresult" "unchanged")])
+(define_insn "cbranch_jmp_neq"
+       [(set (pc) (if_then_else (ne (cc0) (const_int 0))
+                (label_ref (match_operand 0 "" ""))
+                (pc)))]
+       ""
+       "BNZ\t%0"
+       [(set_attr "predicable" "no")
+               (set_attr "conditional" "yes")
+               (set_attr "ccresult" "unchanged")])
+(define_insn "cbranch_jmp_lt"
+       [(set (pc) (if_then_else (lt (cc0) (const_int 0))
+                (label_ref (match_operand 0 "" ""))
+                (pc)))]
+       ""
+       "BLT\t%0"
+       [(set_attr "predicable" "no")
+               (set_attr "conditional" "yes")
+               (set_attr "ccresult" "unchanged")])
+(define_insn "cbranch_jmp_le"
+       [(set (pc) (if_then_else (le (cc0) (const_int 0))
+                (label_ref (match_operand 0 "" ""))
+                (pc)))]
+       ""
+       "BLT\t%0
+       BZ\t%0"
+       [(set_attr "predicable" "no")
+               (set_attr "conditional" "yes")
+               (set_attr "ccresult" "unchanged")])
+(define_insn "cbranch_jmp_gt"
+       [(set (pc) (if_then_else (gt (cc0) (const_int 0))
+                (label_ref (match_operand 0 "" ""))
+                (pc)))]
+       ""
+       "BGT\t%0"
+       [(set_attr "predicable" "no")
+               (set_attr "conditional" "yes")
+               (set_attr "ccresult" "unchanged")])
+(define_insn "cbranch_jmp_ge"
+       [(set (pc) (if_then_else (ge (cc0) (const_int 0))
+                (label_ref (match_operand 0 "" ""))
+                (pc)))]
+       ""
+       "BGE\t%0"
+       [(set_attr "predicable" "no")
+               (set_attr "conditional" "yes")
+               (set_attr "ccresult" "unchanged")])
+(define_insn "cbranch_jmp_ltu"
+       [(set (pc) (if_then_else (ltu (cc0) (const_int 0))
+                (label_ref (match_operand 0 "" ""))
+                (pc)))]
+       ""
+       "BC\t%0"
+       [(set_attr "predicable" "no")
+               (set_attr "conditional" "yes")
+               (set_attr "ccresult" "unchanged")])
+(define_insn "cbranch_jmp_gtu"
+       [(set (pc) (if_then_else (gtu (cc0) (const_int 0))
+                (label_ref (match_operand 0 "" ""))
+                (pc)))]
+       ""      ; Flip the condition, and then we can jump
+       "XOR\t2,CC
+       BC\t%0"
+       [(set_attr "predicable" "no")
+               (set_attr "conditional" "yes")
+               (set_attr "ccresult" "unknown")])
+(define_insn "cbranch_jmp_leu"
+       [(set (pc) (if_then_else (leu (cc0) (const_int 0))
+                (label_ref (match_operand 0 "" ""))
+                (pc)))]
+       ""      ; Need to check for both LTU (i.e. C) and Z
+       "BC\t%0
+       BZ\t%0"
+       [(set_attr "predicable" "no")
+               (set_attr "conditional" "yes")
+               (set_attr "ccresult" "unchanged")])
+(define_insn "cbranch_jmp_geu"
+       [(set (pc) (if_then_else (geu (cc0) (const_int 0))
+                (label_ref (match_operand 0 "" ""))
+                (pc)))]
+       ""      ; Flip the comparison, then check for GEU (once flipped)a
+               ; Z is naturally checked for, as C would've never been set on Z
+               ; so by flipping it, it is tantamount to saying Z or GTU.
+       "BZ\t%0
+       XOR\t2,CC
+       BC\t%0"
+       [(set_attr "predicable" "no")
+               (set_attr "conditional" "yes")
+               (set_attr "ccresult" "unknown")])
+(define_insn "cbranchdi4"
+       [(set (pc) (if_then_else
+               (match_operator 0 "ordered_comparison_operator"
+                       [(match_operand:DI 1 "register_operand" "r")
+                               (match_operand:DI 2 "nonmemory_operand" "rO")])
+                       (label_ref (match_operand 3 "" ""))
+                       (pc)))
+       (clobber (cc0))]
+       ""
+       {
+               switch(GET_CODE(operands[0])) {
+               case EQ:
+                       return "CMP\t%H2,%H1\n\tCMP.Z\t%L2,%L1\n\tBZ\t%3";
+               case NE:
+                       return "CMP\t%H2,%H1\n\tCMP.NZ\t%L2,%L1\n\tBNZ\t%3";
+               case LE:
+                       return "CMP\t%H2,%H1\n\tBLT\t%3\n\tCMP.Z\t%L2,%L1\n\tBC\t%3\n\tBZ\t%3";
+               case GT:
+                       return "CMP\t%H1,%H2\n\tBLT\t%3\n\tBNZ\t.Ldi%=\n\tCMP\t%L1,%L2\n\tBC\t%3\n.Ldi%=:";
+               case LT:
+                       return "CMP\t%H2,%H1\n\tBLT\t%3\n\tBNZ\t.Ldi%=\n\tCMP\t%L2,%L1\n\tBC\t%3\n.Ldi%=:";
+               case GE:
+                       return "CMP\t%H1,%H2\n\tBLT\t%3\n\tBNZ\t.Ldi%=\n\tCMP\t%L1,%L2\n\tBC\t%3\nBZ\t%3\n.Ldi%=:";
+               case LTU:
+                       return "CMP\t%H2,%H1\n\tCMP.Z\t%L2,%L1\n\tBC\t%3\n";
+               case LEU:
+                       return "CMP\t%H2,%H1\n\tCMP.Z\t%L2,%L1\n\tBC\t%3\n\tBZ\t%3";
+               case GTU:
+                       return "CMP\t%H1,%H2\n\tCMP.Z\t%L1,%L2\n\tBC\t%3\n";
+               case GEU:
+                       return "CMP\t%H1,%H2\n\tCMP.Z\t%L1,%L2\n\tBC\t%3\nBZ\t%3";
+               default:
+                       gcc_unreachable();
+               }
+       }
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+;
+;
+;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; Subroutine call
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;
+;
+; There are two types of calls: "call" and "call_value".
+;
+; Each of these types of calls are then expanded into one of:
+;
+;      _const          - A call to a constant address, such as a symbol
+;                      reference or a fixed location
+;
+;      _label          - This should be the same as _const, except that for
+;                      some reason the RTL and matching rules are separate.
+;                      Hence we have a separate rule for this.
+;
+;      _mem            - The memory address we wish to jump to is stored in
+;                      memory somewhere, and we have only a pointer.  In this
+;                      case, we load that pointer straight to the PC and go.
+;
+;      _var            - The address to jump to is given as an offset to a
+;                      register, such as X+R3.  This is an indirect jump.
+;                      Although we support it, it does require different RTL
+;                      code.
+;
+(define_expand "call"
+       [(call (match_operand 0 "" "")
+               (match_operand 1 "" ""))]
+       ""
+       {
+               if (MEM_P(operands[0])) {
+                       // This should always be the case
+                       rtx addr = XEXP(operands[0],0);
+                       if (zip_const_address_operand_p(addr, SImode)) {
+                               // fprintf(stderr, "Generating gen_void_call_const()\n");
+                               emit_call_insn(gen_void_call_const(addr,
+                                               operands[1]));
+                       } else if ((MEM_P(addr))&&(zip_address_operand(
+                                                       XEXP(addr,0)))) {
+                               emit_call_insn(gen_void_call_mem(XEXP(addr,0),
+                                                                operands[1]));
+                       } else {
+                               emit_call_insn(gen_void_call_var(addr,
+                                                                operands[1]));
+                       }
+                       DONE;
+               }
+       })
+;
+;
+;
+; How do we want to do this better?
+;      Replace the RTL w/
+;              return_label= gen_label_rtx();
+;              emit_movsi(gen_rtx_REG(zip_R0),plus_constant(
+;                      gen_rtx_REG(zip_PC),return_label));
+;              emit_jump(label_rtx(
+;
+;              emit_label(return_label);
+;
+; The problem is: we can't!  GCC distinguishes between jumps and calls when
+; optimizing, and it doesn't see the need to keep the label around.  Thus, the
+; label gets removed and the call gets lost.  Hence we do it this way (below).
+; I'll probably bastardize a means of getting a new codelabel that GCC doesn't
+; recognize as such, but for now we'll use .Lcall# as our label.
+;
+(define_insn "void_call_const"
+       [(parallel [(call (mem:SI (match_operand:SI 0 "zip_const_address_operand_p" ""))
+                       (match_operand 1 "" ""))
+               (clobber (reg:SI RTN_REG))])]
+       ""
+       "MOV    .Lcall%=(PC),R0\;BRA\t%0\n.Lcall%=:"
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+;(define_insn "void_call_label"
+;      [(parallel [(call (mem:SI (label_ref (match_operand 0 "" "")))
+;                      (match_operand 1 "" ""))
+;              (clobber (reg:SI RTN_REG))])]
+;      ""
+;      "MOV    .Lcall%=(PC),R0\;BRA\t%0\n.Lcall%=:"
+;      [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+(define_insn "void_call_mem"
+       [(parallel [(call (mem:SI (mem:SI (match_operand:SI 0 "zip_address_operand_p" "")))
+                       (match_operand 1 "" ""))
+               (clobber (reg:SI RTN_REG))])]
+       ""
+       "MOV    .Lcall%=(PC),R0\;LOD\t%0,PC\n.Lcall%=:"
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+;
+; #warning "This predicate is appropriate for non-moves, but not for JMPs"
+(define_insn "void_call_var"
+       [(parallel [(call (mem:SI (match_operand:SI 0 "zip_address_operand_p" ""))
+                       (match_operand 1 "" ""))
+               (clobber (reg:SI RTN_REG))])]
+       ""
+       "MOV    .Lcall%=(PC),R0\;JMP\t%0\n.Lcall%=:"
+       ; emit_move_insn(??)
+       ;       emit_jump(where);
+       ;       emit_label(return_address);
+       ;
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+(define_expand "call_value"
+       [(set (reg:SI RTNV_REG)
+               (call (match_operand:SI 1 "" "")
+                       (match_operand 2 "" "")))
+       (set (match_operand:SI 0 "register_operand" "=r") (reg:SI RTNV_REG))]
+       ""
+       {
+               // extern void zip_debug_rtx(const_rtx);
+               // fprintf(stderr, "ZIP.MD::CALL-VALUE()\n");
+               // zip_debug_rtx(operands[1]);
+               if (MEM_P(operands[1])) {
+                       // fprintf(stderr, "ZIP.MD::CALL-VALUE() MEM_P\n");
+                       // zip_debug_rtx(operands[1]);
+                       // This should always be the case
+                       rtx addr = XEXP(operands[1],0);
+                       if (zip_const_address_operand_p(addr, SImode)) {
+                               // fprintf(stderr, "Generating gen_reg_call_const()\n");
+                               emit_call_insn(gen_reg_call_const(addr, operands[2]));
+                       } else if ((MEM_P(addr))&&(zip_address_operand(XEXP(addr,0)))) {
+                               // fprintf(stderr, "ZIP.MD::CALL-VALUE() INDIRECT\n");
+                               emit_call_insn(gen_reg_call_mem(XEXP(addr,0), operands[2]));
+                       } else {
+                               // fprintf(stderr, "ZIP.MD::CALL-VALUE() INDIRECT\n");
+                               emit_call_insn(gen_reg_call_var(addr, operands[2]));
+                       }
+                       DONE;
+               }
+       })
+(define_insn "reg_call_const"
+       [(parallel [(set (reg:SI RTNV_REG)
+               (call (mem:SI (match_operand:SI 0 "zip_const_address_operand_p" ""))
+                       (match_operand 1 "" "")))
+               (clobber (reg:SI RTN_REG))])]
+       ""
+       "MOV    .Lcall%=(PC),R0\;BRA\t%0\n.Lcall%=:"
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+;(define_insn "reg_call_label"
+;      [(parallel [(set (reg:SI RTNV_REG)
+;              (call (mem:SI (match_operand 0 "" ""))
+;                      (match_operand 1 "" "")))
+;              (clobber (reg:SI RTN_REG))])]
+;      ""
+;      "MOV    .Lcall%=(PC),R0\;BRA\t%0\n.Lcall%=:"
+;      [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+(define_insn "reg_call_mem"
+       [(set (reg:SI RTNV_REG)
+               (call (mem:SI (mem:SI (match_operand:SI 0 "zip_address_operand_p" "")))
+                       (match_operand 1 "" "")))
+               (clobber (reg:SI RTN_REG))]
+       ""
+       "MOV    .Lcall%=(PC),R0\;LOD\t%0,PC\n.Lcall%=:" ; emit_label(return_lbl);
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+; #warning "This predicate is appropriate for non-moves, but not for JMPs"
+(define_insn "reg_call_var"
+       [(parallel [(set (reg:SI RTNV_REG)
+               (call (mem:SI (match_operand:SI 0 "zip_address_operand_p" ""))
+                       (match_operand 1 "" "")))
+               (clobber (reg:SI RTN_REG))])]
+       ""
+       "MOV    .Lcall%=(PC),R0\;JMP\t%0\n.Lcall%=:"
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+;
+;
+;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; Frame manipulation RTX
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;
+;
+;
+(define_expand "prologue"
+       [(const_int 0)]
+       ""
+       "{ zip_expand_prologue(); DONE; }")
+(define_expand "epilogue"
+       [(return)]
+       ""
+       "{ zip_expand_epilogue(); DONE; }")
+(define_expand "return" ; In order to use the function predicate, this *must*
+       [(return)]      ; be a define_expand
+       "zip_use_return_insn()")
+       ; "JMP  R0"
+       ; [(set_attr "ccresult" "unchanged")])
+(define_insn "*return" ; A "*" -- means it cannot be called from C
+       [(return)]
+       ""
+       "JMP    R0"
+       [(set_attr "ccresult" "unchanged")])
+(define_insn "simple_return"   ; A "*" -- means it cannot be called from C
+       [(simple_return)]
+       ""
+       "JMP    R0"
+       [(set_attr "ccresult" "unchanged")])
+;
+;
+;
+;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; Zip Builtin Functions
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;
+;
+;
+;
+(define_insn "zip_rtu"
+       [(unspec_volatile [(reg:SI CC_REG)] UNSPEC_RTU)
+       (clobber (cc0))]
+       "(!ZIP_USER)"
+       "RTU"
+       [(set_attr "ccresult" "unknown")])
+(define_insn "zip_halt" ; Needs to be unspec_volatile, or optimizer will opt out
+       [(unspec_volatile [(reg:SI CC_REG)] UNSPEC_HALT)
+       (clobber (cc0))]
+       "(!ZIP_USER)"
+       "HALT"
+       [(set_attr "ccresult" "unknown")])
+(define_insn "zip_idle"
+       [(unspec_volatile [(reg:SI CC_REG)] UNSPEC_IDLE)
+       (clobber (cc0))]
+       ""
+       "WAIT"
+       [(set_attr "ccresult" "unknown")])
+(define_insn "zip_syscall"
+       [(unspec_volatile [(reg:SI CC_REG)] UNSPEC_SYSCALL)]
+       ""
+       "CLR\tCC"
+       [(set_attr "ccresult" "unknown")])
+;
+;
+; Operator "save_context"
+;
+;      operand 0 missing output reload ... ?
+;
+(define_insn "zip_save_context"
+       [(parallel [
+               (unspec_volatile
+                       [ (match_operand:SI 0 "register_operand" "r") ]
+                       UNSPEC_SAVE_CONTEXT)
+               (clobber (match_scratch:SI 1 "=r"))
+               (clobber (match_scratch:SI 2 "=r"))
+               (clobber (match_scratch:SI 3 "=r"))
+               (clobber (match_scratch:SI 4 "=r"))
+               (use (match_dup 0))])]
+       "(!ZIP_USER)"
+       "MOV\tuR0,%1
+       MOV\tuR1,%2
+       MOV\tuR2,%3
+       MOV\tuR3,%4
+       STO\t%1,%0
+       STO\t%2,1(%0)
+       STO\t%3,2(%0)
+       STO\t%4,3(%0)
+       MOV\tuR4,%1
+       MOV\tuR5,%2
+       MOV\tuR6,%3
+       MOV\tuR7,%4
+       STO\t%1,4(%0)
+       STO\t%2,5(%0)
+       STO\t%3,6(%0)
+       STO\t%4,7(%0)
+       MOV\tuR8,%1
+       MOV\tuR9,%2
+       MOV\tuR10,%3
+       MOV\tuR11,%4
+       STO\t%1,8(%0)
+       STO\t%2,9(%0)
+       STO\t%3,10(%0)
+       STO\t%4,11(%0)
+       MOV\tuR12,%1
+       MOV\tuSP,%2
+       MOV\tuCC,%3
+       MOV\tuPC,%4
+       STO\t%1,12(%0)
+       STO\t%2,13(%0)
+       STO\t%3,14(%0)
+       STO\t%4,15(%0)"
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+(define_insn "zip_restore_context"
+       [(unspec_volatile [
+               (match_operand:SI 0 "register_operand" "r")] UNSPEC_RESTORE_CONTEXT)
+               ; (match_scratch:SI 1 "r")
+               ; (match_scratch:SI 2 "r")
+               ; (match_scratch:SI 3 "r")
+               ; (match_scratch:SI 4 "r")] 6)
+       (clobber (match_scratch:SI 1 "=r"))
+       (clobber (match_scratch:SI 2 "=r"))
+       (clobber (match_scratch:SI 3 "=r"))
+       (clobber (match_scratch:SI 4 "=r"))
+       (use (match_dup 0))]
+       "(!ZIP_USER)"
+       "LOD\t0(%0),%1
+       LOD\t1(%0),%2
+       LOD\t2(%0),%3
+       LOD\t3(%0),%4
+       MOV\t%1,uR0
+       MOV\t%2,uR1
+       MOV\t%3,uR2
+       MOV\t%4,uR3
+       LOD\t4(%0),%1
+       LOD\t5(%0),%2
+       LOD\t6(%0),%3
+       LOD\t7(%0),%4
+       MOV\t%1,uR4
+       MOV\t%2,uR5
+       MOV\t%3,uR6
+       MOV\t%4,uR7
+       LOD\t8(%0),%1
+       LOD\t9(%0),%2
+       LOD\t10(%0),%3
+       LOD\t11(%0),%4
+       MOV\t%1,uR8
+       MOV\t%2,uR9
+       MOV\t%3,uR10
+       MOV\t%4,uR11
+       LOD\t12(%0),%1
+       LOD\t13(%0),%2
+       LOD\t14(%0),%3
+       LOD\t15(%0),%4
+       MOV\t%1,uR12
+       MOV\t%2,uSP
+       MOV\t%3,uCC
+       MOV\t%4,uPC"
+       [(set_attr "predicable" "no") (set_attr "ccresult" "unknown")])
+(define_insn "zip_bitrev"
+       [(set (match_operand:SI 0 "register_operand" "=r")
+               (unspec:SI [(match_operand:SI 1 "register_operand" "r")] UNSPEC_BITREV))
+       ]
+       ""
+       "BREV\t%1,%0"
+       [(set_attr "ccresult" "set")])
+(define_insn "zip_cc"
+       [(set (match_operand:SI 0 "register_operand" "=r")
+               (unspec:SI [(reg:SI CC_REG)] UNSPEC_GETCC))]
+       ""
+       "MOV\tCC,%0"
+       [(set_attr "ccresult" "unchanged")])
+(define_insn "ldilo"
+       [(set (match_operand:SI 0 "register_operand" "=r")
+               (unspec:SI [(match_operand:SI 1 "immediate_operand" "")] UNSPEC_LDILO))]
+       ""
+       "LDILO  %1,%0"
+       [(set_attr "predicable" "yes") (set_attr "ccresult" "unchanged")])
+
+;
+;
+;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; Floating point Op-codes
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;
+;
+;
+(define_insn "addsf3"
+       [(set (match_operand:SF 0 "register_operand" "=r")
+               (plus:SF (match_operand:SF 1 "register_operand" "0")
+                       (match_operand:SF 2 "register_operand" "r")))]
+       "(ZIP_FPU)"
+       "FPADD  %2,%0"
+       [(set_attr "ccresult" "unknown")])
+(define_insn "subsf3"
+       [(set (match_operand:SF 0 "register_operand" "=r")
+               (minus:SF (match_operand:SF 1 "register_operand" "0")
+                       (match_operand:SF 2 "register_operand" "r")))]
+       "(ZIP_FPU)"
+       "FPSUB  %2,%0"
+       [(set_attr "ccresult" "unknown")])
+(define_insn "mulsf3"
+       [(set (match_operand:SF 0 "register_operand" "=r")
+               (mult:SF (match_operand:SF 1 "register_operand" "0")
+                       (match_operand:SF 2 "register_operand" "r")))]
+       "(ZIP_FPU)"
+       "FPMUL  %2,%0"
+       [(set_attr "ccresult" "unknown")])
+(define_insn "divsf3"
+       [(set (match_operand:SF 0 "register_operand" "=r")
+               (div:SF (match_operand:SF 1 "register_operand" "0")
+                       (match_operand:SF 2 "register_operand" "r")))]
+       "(ZIP_FPU)"
+       "FPDIV  %2,%0"
+       [(set_attr "ccresult" "unknown")])
+
+;
+;
+;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; Trap Instruction
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;
+;
+; The ZipCPU doesn't really have a "trap" instruction per se.  The goal is that
+; *nothing* should ever trap, and so we should never get here.  However, the
+; compiler seems to want a trap instruction for some reason.  (It keeps us
+; from calling the abort() function, if we don't define these ...)  So let's
+; just grab onto the break instruction and declare it to be a trap instruction
+; for our purposes.  Alternatively, we might've used a syscall, but ... this
+; will work for both user and system instructions.
+;
+(define_insn "trap"
+       [(trap_if (const_int 1) (const_int 0))]
+       ""
+       "BREAK"
+       [(set_attr "predicable" "yes") (set_attr "ccresult" "unchanged")])
+;
+(define_expand "ctrap<mode>4"
+       [(set (cc0) (compare (match_operand:ZI 1 "register_operand" "r")
+               (match_operand:ZI 2 "nonmemory_operand" "rO")))
+       (trap_if (match_operator 0 "ordered_comparison_operator"
+                       [(cc0) (const_int 0)])
+                       (match_operand 3 "const_int_operand" "O"))]
+       ""
+       )
+(define_insn "trapif"
+       [(trap_if (match_operator 0 "ordered_comparison_operator"
+                       [(cc0) (const_int 0)])
+                       (match_operand 1 "const_int_operand" "O"))]
+       ""
+       "BREAK\t%1"
+       [(set_attr "predicable" "no")])
+;
+;
+;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; Unimplemented (or not yet implemented) RTL Codes
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;
+;
+;
+; The book says that add<mode>3 is used if addptr<mode>3 is undefined.
+; Hence we leave this as unimplemented.
+;
+;(define_insn "addptrsi3"
+;      [(set (match_operand:SI 0 "register_operand" "=r")
+;              (plus:SI (match_operand:SI 1 "register_operand" "r")
+;                      (match_operand:SI 2 "general_operand" "M")))]
+;      ; Addptr is not allowed to clobber condition codes, thus we *must*
+;      ; use the mov (A+B),C form of the add.
+;      ""
+;      "MOV    %2(%1),%0"
+;      [(set_attr "ccresult" "unchanged")])
+;
+; (define_insn "casesi"
+;      "LDI    %4,R0
+;      SUB     %2,%1
+;      BLT     %5
+;      CMP     %3,%1
+;      BGT     %5
+;      ADD     %1,R0
+;      LOD     (R0),pc"
+;      "")
+; (define_insn "decrement_and_branch_until_zero"
+       ; [(parallel [
+               ; (set (match_operand:SI 0 "regiser_operand" "r")
+                       ; (minus:SI (match_dup 0) (const_int 1)))
+               ; (set (pc) (if_then_else
+                               ; (ge (minus:SI (match_dup 0) (const_int 1)))
+                               ; (label_ref (match_operand 1 "" ""))
+                               ; (pc)))])]
+       ; ""
+; ;    SUB     1,%0
+; ;    BNZ     %1
+; ;     .vice the faster (optimize for speed)
+       ; "SUB  1,%0
+       ; BZ    %=
+       ; BRA   %1
+       ; %=:"
+       ; [(set_attr "predicable" "no") (set_attr "ccresult" "set")])
+; doloop_end - do not define--would require cost of an unopt register to use
+; allocate_stack       - do not define ...
+; nonlocal_goto - do not define
+;(define_insn "ctrapmm4"
+;      CMP     %1,%2
+;      MOV.%0  %3,R0
+;      LDILO.%0 0,(CC)
+;
+;(define_insn "sync_compare_and_swapsi"
+;      [(set ...
+;              )]
+;      "(ZIP_ATMOC)"
+;      LOCK            (alu)           // Hmmm ... need to modify if I will
+;      LOD     %1,%0   OP-VALID        // operate on the value before the store
+;      CMP     %0,%2   DCD-valid
+;      STO.Z   %2,%1   PF-valid
+;
+;(define_insn "sync_lock_test_and_setsi"
+;      LOCK
+;      LOD     %1,%0
+;      STO     %0,%1
+;
+;(define_insn "sync_lock_releasesi"
+;      STO     %1,%0
+;
+;
+;(define_insn "negvsi3"
+;      "MOV    %1,%0
+;      XOR     -1,%0
+;      ADD     1,%0
+;      BV      %2"
+;      "")
+
+;
+; STILL MISSING:
+;      SYSCALL(ID)
+;              MOV %ID,R0
+;              CLR     CC
+;      cmove   ... the conditional move, created from a
+;      (set (match_op 0 "" "r") (if_then_else (condition) (a) (reg X))))
+;      pattern
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/zip/zip-modes.def gcc-5.3.0-zip/gcc/config/zip/zip-modes.def
--- gcc-5.3.0-original/gcc/config/zip/zip-modes.def     1969-12-31 19:00:00.000000000 -0500
+++ gcc-5.3.0-zip/gcc/config/zip/zip-modes.def  2016-03-04 17:13:26.438204784 -0500
@@ -0,0 +1,21 @@
+/*
+ * Commends in C-long comment form
+ * class
+ *     Mode = "SI"
+ *     PRECISION, BYTESIZE, COUNT ??
+ *     FORMAT
+ *     EXPR
+ */
+// INT_MODE(QI, 1);
+// INT_MODE(HI, 1);
+// INT_MODE(SI, 1);
+// INT_MODE(DI, 2);
+
+// FLOAT_MODE(SF, 1, ieee_single_format);
+// FLOAT_MODE(DF, 2, ieee_single_format);
+
+// We cannot override machmodes.def from here.  Thus, even though our QI,
+// HI, and SI modes are all 1-byte, we cant set them that way here.  The
+// change needed to be made in machmodes.def.  Hence, here is a target
+// configuration change--in machmodes.def--that properly belonged in the
+// config directory.
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/zip/zip-protos.h gcc-5.3.0-zip/gcc/config/zip/zip-protos.h
--- gcc-5.3.0-original/gcc/config/zip/zip-protos.h      1969-12-31 19:00:00.000000000 -0500
+++ gcc-5.3.0-zip/gcc/config/zip/zip-protos.h   2016-03-02 10:35:53.661426308 -0500
@@ -0,0 +1,69 @@
+////////////////////////////////////////////////////////////////////////////////
+//
+// Filename:   zip-protos.h
+//
+// Project:    Zip CPU backend for the GNU Compiler Collection
+//
+// Purpose:
+//
+// Creator:    Dan Gisselquist, Ph.D.
+//             Gisselquist Technology, LLC
+//
+////////////////////////////////////////////////////////////////////////////////
+//
+// Copyright (C) 2016, Gisselquist Technology, LLC
+//
+// This program is free software (firmware): you can redistribute it and/or
+// modify it under the terms of  the GNU General Public License as published
+// by the Free Software Foundation, either version 3 of the License, or (at
+// your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+// for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program.  (It's in the $(ROOT)/doc directory, run make with no
+// target there if the PDF file isn't present.)  If not, see
+// <http://www.gnu.org/licenses/> for a copy.
+//
+// License:    GPL, v3, as defined and found on www.gnu.org,
+//             http://www.gnu.org/licenses/gpl.html
+//
+//
+////////////////////////////////////////////////////////////////////////////////
+#ifndef        ZIP_PROTOS_H
+#define        ZIP_PROTOS_H
+
+extern void    zip_expand_prologue(void);
+extern void    zip_expand_epilogue(void);
+extern int     zip_initial_elimination_offset(int, int);
+extern void    zip_print_operand(FILE *, rtx, int);
+extern void    zip_print_operand_address(FILE *, rtx);
+extern enum    reg_class       zip_reg_class(int);
+extern rtx     zip_return_addr_rtx(int, rtx);
+extern int     zip_num_arg_regs(enum machine_mode, tree);
+
+extern void    zip_asm_output_def(FILE *s, const char *n, const char *v);
+extern void    zip_update_cc_notice(rtx exp, rtx_insn *insn);
+extern int     zip_address_operand(rtx op);
+extern int     zip_const_address_operand(rtx op);
+extern bool    zip_gen_move_rtl(rtx, rtx);
+// extern      bool    zip_load_address_lod(rtx, rtx);
+// extern      bool    zip_load_address_sto(rtx, rtx);
+extern bool    zip_use_return_insn(void);
+extern const char *zip_set_zero_or_one(rtx, rtx);
+extern const char *zip_movsicc(rtx, rtx, rtx, rtx);
+
+extern int     zip_ct_address_operand(rtx op);
+extern int     zip_pd_address_operand(rtx op);
+extern int     zip_pd_mov_operand(rtx op);
+extern int     zip_ct_const_address_operand(rtx op);
+extern int     zip_pd_const_address_operand(rtx op);
+extern const char *zip_movsicc(rtx, rtx, rtx, rtx);
+extern const char *zip_addsicc(rtx, rtx, rtx, rtx);
+// extern      void    zip_canonicalize_comparison(int *, rtx *, rtx *, bool);
+
+#endif
+
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config.gcc gcc-5.3.0-zip/gcc/config.gcc
--- gcc-5.3.0-original/gcc/config.gcc   2015-09-10 10:17:53.000000000 -0400
+++ gcc-5.3.0-zip/gcc/config.gcc        2016-02-14 00:53:37.389411987 -0500
@@ -479,6 +479,10 @@
 tilepro*-*-*)
        cpu_type=tilepro
        ;;
+zip*)
+       cpu_type=zip
+       tmake_file=zip/t-zip
+       ;;
 esac
 
 tm_file=${cpu_type}/${cpu_type}.h
@@ -2972,6 +2976,15 @@
        c_target_objs="m32c-pragma.o"
        cxx_target_objs="m32c-pragma.o"
        ;;
+zip-*-netbsd*)
+       tm_file="${tm_file} elfos.h netbsd.h netbsd-elf.h zip/netbsd.h"
+       tmake_file="${tmake_file} zip/t-zip"
+       ;;
+zip*)
+       target_has_targetm_common=yes
+       tm_file="elfos.h newlib-stdint.h ${tm_file}"
+       tmake_file="${tmake_file} zip/t-zip"
+       ;;
 *)
        echo "*** Configuration ${target} not supported" 1>&2
        exit 1
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/cse.c gcc-5.3.0-zip/gcc/cse.c
--- gcc-5.3.0-original/gcc/cse.c        2015-02-03 15:41:38.000000000 -0500
+++ gcc-5.3.0-zip/gcc/cse.c     2016-03-05 20:34:50.226907590 -0500
@@ -634,6 +634,14 @@
 
 /* Nonzero if X has the form (PLUS frame-pointer integer).  */
 
+#ifdef DO_ZIP_DEBUGS
+#include <stdio.h>
+extern void zip_debug_rtx(const_rtx);
+#define        ZIP_DEBUG_LINE(STR,RTX) do { fprintf(stderr, "%s\n", STR); zip_debug_rtx(RTX); } while(0)
+#else
+#define        ZIP_DEBUG_LINE(STR,RTX)
+#endif
+
 static bool
 fixed_base_plus_p (rtx x)
 {
@@ -2843,6 +2851,7 @@
   enum rtx_code code;
   const char *fmt;
 
+       ZIP_DEBUG_LINE("CANON-REG", insn);
   if (x == 0)
     return x;
 
@@ -2898,6 +2907,7 @@
          validate_canon_reg (&XVECEXP (x, i, j), insn);
     }
 
+       ZIP_DEBUG_LINE("CANON-REG-RTN", x);
   return x;
 }
 
@@ -3144,14 +3154,16 @@
   if (x == 0)
     return x;
 
+       ZIP_DEBUG_LINE("FOLD-RTX", x);
   /* Try to perform some initial simplifications on X.  */
   code = GET_CODE (x);
   switch (code)
     {
     case MEM:
     case SUBREG:
-      if ((new_rtx = equiv_constant (x)) != NULL_RTX)
-        return new_rtx;
+      if ((new_rtx = equiv_constant (x)) != NULL_RTX) {
+       ZIP_DEBUG_LINE("FOLD-RTX-NEW", new_rtx);
+        return new_rtx; }
       return x;
 
     case CONST:
@@ -3208,6 +3220,8 @@
        rtx folded_arg = XEXP (x, i), const_arg;
        machine_mode mode_arg = GET_MODE (folded_arg);
 
+       ZIP_DEBUG_LINE("FOLD-RTX-ARG = ", folded_arg);
+
        switch (GET_CODE (folded_arg))
          {
          case MEM:
@@ -3317,6 +3331,7 @@
        }
 
       apply_change_group ();
+       ZIP_DEBUG_LINE("FOLD-RTX-CANONICALIZED = ", insn);
     }
 
   /* If X is an arithmetic operation, see if we can simplify it.  */
@@ -4203,6 +4218,7 @@
 {
   rtx dest = SET_DEST (set);
   rtx src = SET_SRC (set);
+       ZIP_DEBUG_LINE("TRY-BACK-SUBSTITUTE-REG", insn);
 
   if (REG_P (dest)
       && REG_P (src) && ! HARD_REGISTER_P (src)
@@ -4258,6 +4274,7 @@
            }
        }
     }
+       ZIP_DEBUG_LINE("TRY-BACK-SUBSTITUTE-REG, done", insn);
 }
 
 /* Record all the SETs in this instruction into SETS_PTR,
@@ -4351,6 +4368,7 @@
   rtx tem;
   rtx x = PATTERN (insn);
   int i;
+       ZIP_DEBUG_LINE("CANONICALIZE-INSN", insn);
 
   if (CALL_P (insn))
     {
@@ -4364,6 +4382,7 @@
       canon_reg (SET_SRC (x), insn);
       apply_change_group ();
       fold_rtx (SET_SRC (x), insn);
+       ZIP_DEBUG_LINE("CANONICALIZE-INSN, was set:", insn);
     }
   else if (GET_CODE (x) == CLOBBER)
     {
@@ -4400,6 +4419,7 @@
     canon_reg (PATTERN (insn), insn);
   else if (GET_CODE (x) == PARALLEL)
     {
+       ZIP_DEBUG_LINE("CANONICALIZE-INSN/parallel", insn);
       for (i = XVECLEN (x, 0) - 1; i >= 0; i--)
        {
          rtx y = XVECEXP (x, 0, i);
@@ -4491,6 +4511,7 @@
 
      The result of apply_change_group can be ignored; see canon_reg.  */
 
+       ZIP_DEBUG_LINE("CANONICALIZE-INSN/done", insn);
   apply_change_group ();
 }
 
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/defaults.h gcc-5.3.0-zip/gcc/defaults.h
--- gcc-5.3.0-original/gcc/defaults.h   2015-03-03 10:04:02.000000000 -0500
+++ gcc-5.3.0-zip/gcc/defaults.h        2016-02-06 16:57:53.939410173 -0500
@@ -480,6 +480,8 @@
 #define LOG2_BITS_PER_UNIT 3
 #elif BITS_PER_UNIT == 16
 #define LOG2_BITS_PER_UNIT 4
+#elif BITS_PER_UNIT == 32
+#define LOG2_BITS_PER_UNIT 5
 #else
 #error Unknown BITS_PER_UNIT
 #endif
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/doc/gcc.log gcc-5.3.0-zip/gcc/doc/gcc.log
--- gcc-5.3.0-original/gcc/doc/gcc.log  1969-12-31 19:00:00.000000000 -0500
+++ gcc-5.3.0-zip/gcc/doc/gcc.log       2016-01-30 15:18:43.262724969 -0500
@@ -0,0 +1,214 @@
+This is pdfTeX, Version 3.1415926-2.5-1.40.14 (TeX Live 2013/Debian) (format=pdfetex 2014.5.7)  30 JAN 2016 15:17
+entering extended mode
+ restricted \write18 enabled.
+ file:line:error style messages enabled.
+ %&-line parsing enabled.
+**\catcode126=12 \def\normaltilde{~}\catcode126=13 \let~\normaltilde  \input ./
+gcc.texi
+(./gcc.texi (/usr/share/texmf/tex/texinfo/texinfo.tex
+Loading texinfo [version 2013-09-11.11]:
+\bindingoffset=\dimen16
+\normaloffset=\dimen17
+\pagewidth=\dimen18
+\pageheight=\dimen19
+\outerhsize=\dimen20
+\outervsize=\dimen21
+\cornerlong=\dimen22
+\cornerthick=\dimen23
+\topandbottommargin=\dimen24
+\headlinebox=\box16
+\footlinebox=\box17
+\margin=\insert252
+\EMsimple=\toks13
+\groupbox=\box18
+\groupinvalidhelp=\toks14
+\mil=\dimen25
+\exdentamount=\skip18
+\inmarginspacing=\skip19
+\centerpenalty=\count27
+ pdf,
+\tempnum=\count28
+\lnkcount=\count29
+\filename=\toks15
+\filenamelength=\count30
+\pgn=\count31
+\toksA=\toks16
+\toksB=\toks17
+\toksC=\toks18
+\toksD=\toks19
+\boxA=\box19
+\countA=\count32
+\nopdfimagehelp=\toks20
+ fonts,
+\sffam=\fam8
+\textleading=\dimen26
+ markup,
+\fontdepth=\count33
+ glyphs,
+\errorbox=\box20
+
+page headings,
+\titlepagetopglue=\skip20
+\titlepagebottomglue=\skip21
+\evenheadline=\toks21
+\oddheadline=\toks22
+\evenfootline=\toks23
+\oddfootline=\toks24
+ tables,
+\tableindent=\dimen27
+\itemindent=\dimen28
+\itemmargin=\dimen29
+\itemmax=\dimen30
+\itemno=\count34
+\multitableparskip=\skip22
+\multitableparindent=\skip23
+\multitablecolspace=\dimen31
+\multitablelinespace=\skip24
+\colcount=\count35
+\everytab=\toks25
+ conditionals,
+\doignorecount=\count36
+ indexing,
+\whatsitskip=\skip25
+\whatsitpenalty=\count37
+\secondaryindent=\skip26
+\partialpage=\box21
+\doublecolumnhsize=\dimen32
+ sectioning,
+\unnumberedno=\count38
+\chapno=\count39
+\secno=\count40
+\subsecno=\count41
+\subsubsecno=\count42
+\appendixno=\count43
+\absseclevel=\count44
+\secbase=\count45
+\chapheadingskip=\skip27
+\secheadingskip=\skip28
+\subsecheadingskip=\skip29
+ toc,
+\tocfile=\write0
+\contentsrightmargin=\skip30
+\savepageno=\count46
+\lastnegativepageno=\count47
+\tocindent=\dimen33
+ environments,
+\lispnarrowing=\skip31
+\envskipamount=\skip32
+\circthick=\dimen34
+\cartouter=\dimen35
+\cartinner=\dimen36
+\normbskip=\skip33
+\normpskip=\skip34
+\normlskip=\skip35
+\lskip=\skip36
+\rskip=\skip37
+\nonfillparindent=\dimen37
+\tabw=\dimen38
+\verbbox=\box22
+
+defuns,
+\defbodyindent=\skip38
+\defargsindent=\skip39
+\deflastargmargin=\skip40
+\defunpenalty=\count48
+\parencount=\count49
+\brackcount=\count50
+ macros,
+\paramno=\count51
+\macname=\toks26
+ cross references,
+\auxfile=\write1
+\savesfregister=\count52
+\toprefbox=\box23
+\printedrefnamebox=\box24
+\infofilenamebox=\box25
+\printedmanualbox=\box26
+ insertions,
+\footnoteno=\count53
+\SAVEfootins=\box27
+\SAVEmargin=\box28
+
+(/usr/share/texlive/texmf-dist/tex/generic/epsf/epsf.tex
+This is `epsf.tex' v2.7.4 <14 February 2011>
+\epsffilein=\read1
+\epsfframemargin=\dimen39
+\epsfframethickness=\dimen40
+\epsfrsize=\dimen41
+\epsftmp=\dimen42
+\epsftsize=\dimen43
+\epsfxsize=\dimen44
+\epsfysize=\dimen45
+\pspoints=\dimen46
+)
+\noepsfhelp=\toks27
+ localization,
+\nolanghelp=\toks28
+\countUTFx=\count54
+\countUTFy=\count55
+\countUTFz=\count56
+ formatting,
+\defaultparindent=\dimen47
+ and turning on texinfo input format.)
+\openout1 = `gcc.aux'.
+
+@cpindfile=@write2
+@fnindfile=@write3
+@vrindfile=@write4
+@tpindfile=@write5
+@kyindfile=@write6
+@pgindfile=@write7
+texinfo.tex: doing @include of gcc-common.texi
+
+
+./gcc.texi:25: I can't find file `gcc-common.texi'.
+@temp ->@input gcc-common.texi
+
+@includezzz ...and @input #1 }@expandafter }@temp
+                                                  @popthisfilestack
+l.25 @include gcc-common.texi
+
+(Press Enter to retry, or Control-D to exit)
+Please type another input file name: include/gcc-common.texi
+(./include/gcc-common.texi
+texinfo.tex: doing @include of gcc-vers.texi
+
+
+./include/gcc-common.texi:11: I can't find file `gcc-vers.texi'.
+@temp ->@input gcc-vers.texi
+
+@includezzz ...and @input #1 }@expandafter }@temp
+                                                  @popthisfilestack
+l.11 @include gcc-vers.texi
+
+(Press Enter to retry, or Control-D to exit)
+Please type another input file name: include/gcc-vers.texi
+./include/gcc-common.texi:11: I can't find file `include/gcc-vers.texi'.
+@temp ->@input gcc-vers.texi
+
+@includezzz ...and @input #1 }@expandafter }@temp
+                                                  @popthisfilestack
+l.11 @include gcc-vers.texi
+
+(Press Enter to retry, or Control-D to exit)
+Please type another input file name:
+./include/gcc-common.texi:11: I can't find file `include/gcc-vers.texi'.
+@temp ->@input gcc-vers.texi
+
+@includezzz ...and @input #1 }@expandafter }@temp
+                                                  @popthisfilestack
+l.11 @include gcc-vers.texi
+
+(Press Enter to retry, or Control-D to exit)
+Please type another input file name:
+./include/gcc-common.texi:11: Emergency stop.
+@temp ->@input gcc-vers.texi
+
+@includezzz ...and @input #1 }@expandafter }@temp
+                                                  @popthisfilestack
+l.11 @include gcc-vers.texi
+
+End of file on the terminal!
+
+./include/gcc-common.texi:11:  ==> Fatal error occurred, no output PDF file pro
+duced!
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/expr.c gcc-5.3.0-zip/gcc/expr.c
--- gcc-5.3.0-original/gcc/expr.c       2015-04-07 10:34:06.000000000 -0400
+++ gcc-5.3.0-zip/gcc/expr.c    2016-03-08 04:07:01.426335724 -0500
@@ -7999,6 +7999,8 @@
    the back of the caller.
    The normal operating mode is to pass FALSE for this parameter.  */
 
+#include "print-tree.h"
+
 rtx
 expand_expr_real (tree exp, rtx target, machine_mode tmode,
                  enum expand_modifier modifier, rtx *alt_rtl,
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/genmodes.c gcc-5.3.0-zip/gcc/genmodes.c
--- gcc-5.3.0-original/gcc/genmodes.c   2015-01-05 07:33:28.000000000 -0500
+++ gcc-5.3.0-zip/gcc/genmodes.c        2016-03-04 21:27:49.669147699 -0500
@@ -330,7 +330,8 @@
         the size of a CC mode is four units.  */
       validate_mode (m, UNSET, UNSET, UNSET, UNSET, UNSET);
 
-      m->bytesize = 4;
+       /* For the ZipCPU, however, it is only one unit */
+      m->bytesize = 1;
       m->ncomponents = 1;
       m->component = 0;
       break;
@@ -766,11 +767,12 @@
 
   /* So put the default value unless the target needs a non standard
      value. */
-#ifdef BITS_PER_UNIT
-  bits_per_unit = BITS_PER_UNIT;
-#else
-  bits_per_unit = 8;
-#endif
+// #ifdef BITS_PER_UNIT
+  // bits_per_unit = BITS_PER_UNIT;
+// #else
+  bits_per_unit = 32;
+#warning "Is there a more automated way to set bits per unit?"
+// #endif
 
 #ifdef MAX_BITSIZE_MODE_ANY_INT
   max_bitsize_mode_any_int = MAX_BITSIZE_MODE_ANY_INT;
@@ -1083,7 +1085,7 @@
       first = modes[c];
       last = 0;
       for (m = first; m; last = m, m = m->next)
-       ;
+       if ((m->next)&&(m->next->bytesize == m->bytesize)) first = m;
 
       /* Don't use BImode for MIN_MODE_INT, since otherwise the middle
         end will try to use it for bitfields in structures and the
@@ -1268,7 +1270,7 @@
            continue;
          if (m->precision != (unsigned int) -1)
            {
-             if (m2->precision != 2 * m->precision)
+             if (m2->precision < 2 * m->precision)
                continue;
            }
          else
@@ -1323,7 +1325,6 @@
       tagged_printf ("MODE_MASK (%u)", m->precision, m->name);
     else
       tagged_printf ("MODE_MASK (%u*BITS_PER_UNIT)", m->bytesize, m->name);
-
   puts ("#undef MODE_MASK");
   print_closer ();
 }
@@ -1351,12 +1352,23 @@
   int c;
   struct mode_data *m;
 
+  puts(
+"\n\n/* This is a rather strange conundrum.  Alignment is used by the host in\n"
+" * the assembly file, whereas the size is used by the target.  Thus, for\n"
+" * now, to align to a single target word means to align to 4 8-bit bytes in\n"
+" * assembly.  If you get it wrong, the assembler will try to help.  Thus,\n"
+" * aligning to anything less than 4 (1 target word) will cause an alignment\n"
+" * of the target word in size.  However, this tries to do a little something\n"
+" * teach our compiler what we are doing.\n"
+" */\n");
   print_maybe_const_decl ("%sunsigned char",
                          "mode_base_align", "NUM_MACHINE_MODES",
                          alignment);
 
   for_all_modes (c, m)
-    tagged_printf ("%u", m->alignment, m->name);
+    tagged_printf ("%u", 4*m->bytesize,
+               // m->alignment,
+               m->name);
 
   print_closer ();
 }
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/machmode.def gcc-5.3.0-zip/gcc/machmode.def
--- gcc-5.3.0-original/gcc/machmode.def 2015-01-05 07:33:28.000000000 -0500
+++ gcc-5.3.0-zip/gcc/machmode.def      2016-03-04 22:47:59.406632941 -0500
@@ -184,11 +184,11 @@
    larger types, then corresponding modes must be added here.  The
    name OI is reserved for a 256-bit type (needed by some back ends).
     */
-INT_MODE (QI, 1);
-INT_MODE (HI, 2);
-INT_MODE (SI, 4);
-INT_MODE (DI, 8);
-INT_MODE (TI, 16);
+// INT_MODE (QI, 1);
+// INT_MODE (HI, 1);
+INT_MODE (SI, 1);
+INT_MODE (DI, 2);
+INT_MODE (TI, 4);
 
 /* No partial integer modes are defined by default.  */
 
@@ -206,8 +206,8 @@
    These are the IEEE mappings.  They can be overridden with
    RESET_FLOAT_FORMAT or at runtime (in TARGET_OPTION_OVERRIDE).  */
 
-FLOAT_MODE (SF, 4, ieee_single_format);
-FLOAT_MODE (DF, 8, ieee_double_format);
+FLOAT_MODE (SF, 1, ieee_single_format);
+FLOAT_MODE (DF, 2, ieee_double_format);
 
 /* Basic CC modes.
    FIXME define this only for targets that need it.  */
@@ -215,16 +215,16 @@
 
 /* Fixed-point modes.  */
 FRACT_MODE (QQ, 1, 7); /* s.7 */
-FRACT_MODE (HQ, 2, 15); /* s.15 */
-FRACT_MODE (SQ, 4, 31); /* s.31 */
-FRACT_MODE (DQ, 8, 63); /* s.63 */
-FRACT_MODE (TQ, 16, 127); /* s.127 */
+FRACT_MODE (HQ, 1, 15); /* s.15 */
+FRACT_MODE (SQ, 1, 31); /* s.31 */
+FRACT_MODE (DQ, 2, 63); /* s.63 */
+FRACT_MODE (TQ, 4, 127); /* s.127 */
 
 UFRACT_MODE (UQQ, 1, 8); /* .8 */
-UFRACT_MODE (UHQ, 2, 16); /* .16 */
-UFRACT_MODE (USQ, 4, 32); /* .32 */
-UFRACT_MODE (UDQ, 8, 64); /* .64 */
-UFRACT_MODE (UTQ, 16, 128); /* .128 */
+UFRACT_MODE (UHQ, 1, 16); /* .16 */
+UFRACT_MODE (USQ, 1, 32); /* .32 */
+UFRACT_MODE (UDQ, 2, 64); /* .64 */
+UFRACT_MODE (UTQ, 4, 128); /* .128 */
 
 ACCUM_MODE (HA, 2, 8, 7); /* s8.7 */
 ACCUM_MODE (SA, 4, 16, 15); /* s16.15 */
@@ -246,9 +246,9 @@
 COMPLEX_MODES (FLOAT);
 
 /* Decimal floating point modes.  */
-DECIMAL_FLOAT_MODE (SD, 4, decimal_single_format);
-DECIMAL_FLOAT_MODE (DD, 8, decimal_double_format);
-DECIMAL_FLOAT_MODE (TD, 16, decimal_quad_format);
+DECIMAL_FLOAT_MODE (SD, 1, decimal_single_format);
+DECIMAL_FLOAT_MODE (DD, 2, decimal_double_format);
+DECIMAL_FLOAT_MODE (TD, 4, decimal_quad_format);
 
 /* The symbol Pmode stands for one of the above machine modes (usually SImode).
    The tm.h file specifies which one.  It is not a distinct mode.  */
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/machmode.h gcc-5.3.0-zip/gcc/machmode.h
--- gcc-5.3.0-original/gcc/machmode.h   2015-01-05 07:33:28.000000000 -0500
+++ gcc-5.3.0-zip/gcc/machmode.h        2016-02-06 17:21:49.592924065 -0500
@@ -180,13 +180,7 @@
 /* Get the size in bytes and bits of an object of mode MODE.  */
 
 extern CONST_MODE_SIZE unsigned char mode_size[NUM_MACHINE_MODES];
-#if GCC_VERSION >= 4001
-#define GET_MODE_SIZE(MODE) \
-  ((unsigned short) (__builtin_constant_p (MODE) \
-                    ? mode_size_inline (MODE) : mode_size[MODE]))
-#else
 #define GET_MODE_SIZE(MODE)    ((unsigned short) mode_size[MODE])
-#endif
 #define GET_MODE_BITSIZE(MODE) \
   ((unsigned short) (GET_MODE_SIZE (MODE) * BITS_PER_UNIT))
 
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/objc/objc-encoding.c gcc-5.3.0-zip/gcc/objc/objc-encoding.c
--- gcc-5.3.0-original/gcc/objc/objc-encoding.c 2015-01-09 15:18:42.000000000 -0500
+++ gcc-5.3.0-zip/gcc/objc/objc-encoding.c      2016-03-04 22:53:40.431902505 -0500
@@ -765,10 +765,14 @@
        {
          switch (TYPE_MODE (type))
            {
+#ifdef HAVE_QImode
            case QImode:
              charType = 'C'; break;
+#endif
+#ifdef HAVE_HImode
            case HImode:
              charType = 'S'; break;
+#endif
            case SImode:
              {
                if (type == long_unsigned_type_node)
@@ -788,10 +792,14 @@
        {
          switch (TYPE_MODE (type))
            {
+#ifdef HAVE_QImode
            case QImode:
              charType = 'c'; break;
+#endif
+#ifdef HAVE_HImode
            case HImode:
              charType = 's'; break;
+#endif
            case SImode:
              {
                if (type == long_integer_type_node)
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/postreload.c gcc-5.3.0-zip/gcc/postreload.c
--- gcc-5.3.0-original/gcc/postreload.c 2015-07-17 09:50:38.000000000 -0400
+++ gcc-5.3.0-zip/gcc/postreload.c      2016-03-07 18:24:22.263499116 -0500
@@ -71,6 +71,13 @@
 #include "df.h"
 #include "dbgcnt.h"
 
+#ifdef DO_ZIP_DEBUGS
+extern void zip_debug_rtx(const_rtx);
+#define        ZIP_DEBUG_LINE(STR,RTX) do { fprintf(stderr, "%s:%d/%s\n", __FILE__,__LINE__,STR); zip_debug_rtx(RTX); } while(0)
+#else
+#define        ZIP_DEBUG_LINE(STR,RTX)
+#endif
+
 static int reload_cse_noop_set_p (rtx);
 static bool reload_cse_simplify (rtx_insn *, rtx);
 static void reload_cse_regs_1 (void);
@@ -120,6 +127,8 @@
   basic_block insn_bb = BLOCK_FOR_INSN (insn);
   unsigned insn_bb_succs = EDGE_COUNT (insn_bb->succs);
 
+       ZIP_DEBUG_LINE("RELOAD-CSE-SIMPLIFY:",insn);
+
   if (GET_CODE (body) == SET)
     {
       int count = 0;
@@ -147,6 +156,7 @@
        apply_change_group ();
       else
        reload_cse_simplify_operands (insn, testreg);
+       ZIP_DEBUG_LINE("End of reload_cse_simplify_operands", insn);
     }
   else if (GET_CODE (body) == PARALLEL)
     {
@@ -205,6 +215,7 @@
        apply_change_group ();
       else
        reload_cse_simplify_operands (insn, testreg);
+       ZIP_DEBUG_LINE("End of reload_cse_simplify_operands", insn);
     }
 
 done:
@@ -246,6 +257,7 @@
          cfg_changed |= reload_cse_simplify (insn, testreg);
 
        cselib_process_insn (insn);
+       ZIP_DEBUG_LINE("End-CSE-REGS-1:",insn);
       }
 
   /* Clean up.  */
@@ -276,6 +288,8 @@
 #endif
   bool speed = optimize_bb_for_speed_p (BLOCK_FOR_INSN (insn));
 
+
+       ZIP_DEBUG_LINE("RELOAD:Attempting to simplify set",set);
   dreg = true_regnum (SET_DEST (set));
   if (dreg < 0)
     return 0;
@@ -427,6 +441,7 @@
   /* Array of alternatives, sorted in order of decreasing desirability.  */
   int *alternative_order;
 
+       ZIP_DEBUG_LINE("Simplify-Operands", insn);
   extract_constrain_insn (insn);
 
   if (recog_data.n_alternatives == 0 || recog_data.n_operands == 0)
@@ -519,6 +534,7 @@
          SET_HARD_REG_BIT (equiv_regs[i], REGNO (l->loc));
     }
 
+       ZIP_DEBUG_LINE("Simplify-Operands - A", insn);
   alternative_mask preferred = get_preferred_alternatives (insn);
   for (i = 0; i < recog_data.n_operands; i++)
     {
@@ -617,6 +633,7 @@
            }
        }
     }
+       ZIP_DEBUG_LINE("Simplify-Operands - B", insn);
 
   /* Record all alternatives which are better or equal to the currently
      matching one in the alternative_order array.  */
@@ -666,6 +683,7 @@
       validate_change (insn, recog_data.operand_loc[i],
                       gen_rtx_REG (mode, op_alt_regno[i][j]), 1);
     }
+       ZIP_DEBUG_LINE("Simplify-Operands - C", insn);
 
   for (i = recog_data.n_dups - 1; i >= 0; i--)
     {
@@ -679,6 +697,7 @@
                       gen_rtx_REG (mode, op_alt_regno[op][j]), 1);
     }
 
+       ZIP_DEBUG_LINE("Simplify-Operands - C", insn);
   return apply_change_group ();
 }
 
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/reload1.c gcc-5.3.0-zip/gcc/reload1.c
--- gcc-5.3.0-original/gcc/reload1.c    2015-01-15 08:28:42.000000000 -0500
+++ gcc-5.3.0-zip/gcc/reload1.c 2016-03-07 18:25:12.311162959 -0500
@@ -2271,11 +2271,11 @@
               && spill_stack_slot_width[from_reg] >= total_size
               && (GET_MODE_SIZE (GET_MODE (spill_stack_slot[from_reg]))
                   >= inherent_size)
-              && MEM_ALIGN (spill_stack_slot[from_reg]) >= min_align)
+              && MEM_ALIGN (spill_stack_slot[from_reg]) >= min_align) {
        x = spill_stack_slot[from_reg];
 
       /* Allocate a bigger slot.  */
-      else
+      } else
        {
          /* Compute maximum size needed, both for inherent size
             and for total size.  */
@@ -3477,11 +3477,14 @@
   /* Eliminate all eliminable registers occurring in operands that
      can be handled by reload.  */
   extract_insn (insn);
+
   for (i = 0; i < recog_data.n_operands; i++)
     {
       orig_operand[i] = recog_data.operand[i];
       substed_operand[i] = recog_data.operand[i];
 
+       if (insn_data[icode].operand[i].eliminable)
+
       /* For an asm statement, every operand is eliminable.  */
       if (insn_is_asm || insn_data[icode].operand[i].eliminable)
        {
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/reload.c gcc-5.3.0-zip/gcc/reload.c
--- gcc-5.3.0-original/gcc/reload.c     2015-01-15 08:28:42.000000000 -0500
+++ gcc-5.3.0-zip/gcc/reload.c  2016-02-19 08:15:17.546189655 -0500
@@ -2707,8 +2707,17 @@
     no_output_reloads = 1;
 
 #ifdef HAVE_cc0
+  // If the instruction depends upon cc0, such as a branch, if_then_else, or
+  // cond_exec instruction, we cannot change the input so that the instruction
+  // relies on another register--cc0 is specific.  This requries that the
+  // references be only cc0 and (const_int 0), rather than allowing other
+  // registers here as well.
   if (reg_referenced_p (cc0_rtx, PATTERN (insn)))
     no_input_reloads = 1;
+  // If the result of an instruction is the cc0 register, that cannot
+  // be changed, therefore no output reloading is allowed.  This only
+  // works if instructions *only* set the cc0 register, and not multiple
+  // registers.
   if (reg_set_p (cc0_rtx, PATTERN (insn)))
     no_output_reloads = 1;
 #endif
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/testsuite/lib/target-supports.exp gcc-5.3.0-zip/gcc/testsuite/lib/target-supports.exp
--- gcc-5.3.0-original/gcc/testsuite/lib/target-supports.exp    2015-11-26 05:10:58.000000000 -0500
+++ gcc-5.3.0-zip/gcc/testsuite/lib/target-supports.exp 2016-01-30 15:14:21.620586694 -0500
@@ -503,6 +503,11 @@
        return 0
     }
 
+    # Zip CPU doesn't support profiling (yet)
+    if { [istarget zip*] }
+        return 0
+    }
+
     # MinGW does not support -p.
     if { [istarget *-*-mingw*] && $test_what == "-p" } {
        return 0
@@ -986,6 +991,12 @@
        }]
     }
 
+    # No real hardware FPU support for ZipCPU yet--even though the instruction
+    # set supports it, the CPU just isn't ready yet.
+    if { [istarget zip*-*-*] } {
+        return 0
+    }
+
     # This proc is actually checking the availabilty of FPU
     # support for doubles, so on the RX we must fail if the
     # 64-bit double multilib has been selected.
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/tree-ssa-math-opts.c gcc-5.3.0-zip/gcc/tree-ssa-math-opts.c
--- gcc-5.3.0-original/gcc/tree-ssa-math-opts.c 2015-08-11 03:58:07.000000000 -0400
+++ gcc-5.3.0-zip/gcc/tree-ssa-math-opts.c      2016-02-12 11:21:11.309149239 -0500
@@ -972,7 +972,7 @@
     {
       if (val & 1)
        {
-         digit = val & ((1 << POWI_WINDOW_SIZE) - 1);
+         digit = val & ((1l << POWI_WINDOW_SIZE) - 1);
          result += powi_lookup_cost (digit, cache)
                    + POWI_WINDOW_SIZE + 1;
          val >>= POWI_WINDOW_SIZE;
@@ -1012,7 +1012,7 @@
     }
   else if (n & 1)
     {
-      digit = n & ((1 << POWI_WINDOW_SIZE) - 1);
+      digit = n & ((1l << POWI_WINDOW_SIZE) - 1);
       op0 = powi_as_mults_1 (gsi, loc, type, n - digit, cache);
       op1 = powi_as_mults_1 (gsi, loc, type, digit, cache);
     }
@@ -1651,7 +1651,7 @@
 };
 
 #define BITS_PER_MARKER 8
-#define MARKER_MASK ((1 << BITS_PER_MARKER) - 1)
+#define MARKER_MASK ((1l << BITS_PER_MARKER) - 1)
 #define MARKER_BYTE_UNKNOWN MARKER_MASK
 #define HEAD_MARKER(n, size) \
   ((n) & ((uint64_t) MARKER_MASK << (((size) - 1) * BITS_PER_MARKER)))
@@ -1687,7 +1687,7 @@
   /* Zero out the extra bits of N in order to avoid them being shifted
      into the significant bits.  */
   if (size < 64 / BITS_PER_MARKER)
-    n->n &= ((uint64_t) 1 << (size * BITS_PER_MARKER)) - 1;
+    n->n &= ((uint64_t) 1l << (size * BITS_PER_MARKER)) - 1;
 
   switch (code)
     {
@@ -1714,7 +1714,7 @@
     }
   /* Zero unused bits for size.  */
   if (size < 64 / BITS_PER_MARKER)
-    n->n &= ((uint64_t) 1 << (size * BITS_PER_MARKER)) - 1;
+    n->n &= ((uint64_t) 1l << (size * BITS_PER_MARKER)) - 1;
   return true;
 }
 
@@ -1761,7 +1761,7 @@
   n->n = CMPNOP;
 
   if (size < 64 / BITS_PER_MARKER)
-    n->n &= ((uint64_t) 1 << (size * BITS_PER_MARKER)) - 1;
+    n->n &= ((uint64_t) 1l << (size * BITS_PER_MARKER)) - 1;
 
   return true;
 }
@@ -2020,7 +2020,7 @@
          {
            int i, size = TYPE_PRECISION (n->type) / BITS_PER_UNIT;
            uint64_t val = int_cst_value (rhs2), mask = 0;
-           uint64_t tmp = (1 << BITS_PER_UNIT) - 1;
+           uint64_t tmp = (1l << BITS_PER_UNIT) - 1;
 
            /* Only constants masking full bytes are allowed.  */
            for (i = 0; i < size; i++, tmp <<= BITS_PER_UNIT)
@@ -2064,7 +2064,7 @@
              {
                /* If STMT casts to a smaller type mask out the bits not
                   belonging to the target type.  */
-               n->n &= ((uint64_t) 1 << (type_size * BITS_PER_MARKER)) - 1;
+               n->n &= ((uint64_t) 1l << (type_size * BITS_PER_MARKER)) - 1;
              }
            n->type = type;
            if (!n->base_addr)
@@ -2177,7 +2177,7 @@
     {
       uint64_t mask;
 
-      mask = ((uint64_t) 1 << (n->range * BITS_PER_MARKER)) - 1;
+      mask = ((uint64_t) 1l << (n->range * BITS_PER_MARKER)) - 1;
       cmpxchg >>= (64 / BITS_PER_MARKER - n->range) * BITS_PER_MARKER;
       cmpnop &= mask;
     }
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/var-tracking.c gcc-5.3.0-zip/gcc/var-tracking.c
--- gcc-5.3.0-original/gcc/var-tracking.c       2015-03-26 09:19:00.000000000 -0400
+++ gcc-5.3.0-zip/gcc/var-tracking.c    2016-03-05 20:43:22.535221161 -0500
@@ -143,6 +143,13 @@
 #include "rtl-iter.h"
 #include "fibonacci_heap.h"
 
+#ifdef DO_ZIP_DEBUG
+#include <stdio.h>
+extern void zip_debug_rtx(const_rtx);
+#define ZIP_DEBUG_LINE(STR,RTX) do {fprintf(stderr,"%s:%d/%s\n",__FILE__,__LINE__,STR); zip_debug_rtx(RTX); } while(0)
+#else
+#define ZIP_DEBUG_LINE(STR,RTX)
+#endif
 typedef fibonacci_heap <long, basic_block_def> bb_heap_t;
 typedef fibonacci_node <long, basic_block_def> bb_heap_node_t;
 
@@ -6356,6 +6363,7 @@
                machine_mode indmode
                  = TYPE_MODE (TREE_TYPE (argtype));
                rtx mem = gen_rtx_MEM (indmode, x);
+                       ZIP_DEBUG_LINE("Var-tracking mem-ref", mem);
                cselib_val *val = cselib_lookup (mem, indmode, 0, VOIDmode);
                if (val && cselib_preserved_value_p (val))
                  {
@@ -6462,12 +6470,14 @@
       machine_mode mode
        = TYPE_MODE (TREE_TYPE (OBJ_TYPE_REF_EXPR (obj_type_ref)));
       rtx clobbered = gen_rtx_MEM (mode, this_arg);
+                       ZIP_DEBUG_LINE("Var-tracking mem-ref/clobbered", clobbered);
       HOST_WIDE_INT token
        = tree_to_shwi (OBJ_TYPE_REF_TOKEN (obj_type_ref));
       if (token)
        clobbered = plus_constant (mode, clobbered,
                                   token * GET_MODE_SIZE (mode));
       clobbered = gen_rtx_MEM (mode, clobbered);
+       ZIP_DEBUG_LINE("Var-tracking mem-ref/clobbered-2", clobbered);
       x = gen_rtx_CONCAT (mode, gen_rtx_CLOBBER (VOIDmode, pc_rtx), clobbered);
       call_arguments
        = gen_rtx_EXPR_LIST (VOIDmode, x, call_arguments);
@@ -9790,6 +9800,7 @@
              machine_mode indmode
                = TYPE_MODE (TREE_TYPE (TREE_TYPE (parm)));
              rtx mem = gen_rtx_MEM (indmode, incoming);
+       ZIP_DEBUG_LINE("Var-tracking mem-ref/incoming", incoming);
              cselib_val *val = cselib_lookup_from_insn (mem, indmode, true,
                                                         VOIDmode,
                                                         get_insns ());
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/libgcc/config.host gcc-5.3.0-zip/libgcc/config.host
--- gcc-5.3.0-original/libgcc/config.host       2015-10-01 08:01:18.000000000 -0400
+++ gcc-5.3.0-zip/libgcc/config.host    2016-01-30 15:16:00.459883558 -0500
@@ -195,6 +195,9 @@
 tic6x-*-*)
        cpu_type=c6x
        ;;
+zip*)
+       cpu_type=zip
+       ;;
 esac
 
 # Common parts for widely ported systems.
@@ -1300,6 +1303,9 @@
        echo "*** Configuration ${host} not supported" 1>&2
        exit 1
        ;;
+zip*)
+       tmake_file="${tmake_file} t-softfp-sfdf t-softfp"
+       ;;
 esac
 
 case ${host} in
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/libgomp/configure.tgt gcc-5.3.0-zip/libgomp/configure.tgt
--- gcc-5.3.0-original/libgomp/configure.tgt    2015-03-13 06:57:07.000000000 -0400
+++ gcc-5.3.0-zip/libgomp/configure.tgt 2016-01-30 15:16:51.323521641 -0500
@@ -150,6 +150,9 @@
        # Need to link with -lpthread so libgomp.so is self-contained.
        XLDFLAGS="${XLDFLAGS} -lpthread"
        ;;
+  zip*)
+        config_path="bsd posix"
+        ;;
 
   *)
        ;;
Line No.	Rev	Author	Line
1	102	dgisselq	`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/config.sub gcc-5.3.0-zip/config.sub`
2			`--- gcc-5.3.0-original/config.sub 2015-01-02 04:30:21.000000000 -0500`
3			`+++ gcc-5.3.0-zip/config.sub 2016-01-30 12:27:56.023073747 -0500`
4			`@@ -316,7 +316,7 @@`
5			`\| visium \`
6			`\| we32k \`
7			`\| x86 \| xc16x \| xstormy16 \| xtensa \`
8			`- \| z8k \| z80)`
9			`+ \| z8k \| z80 \| zip)`
10			`basic_machine=$basic_machine-unknown`
11			`;;`
12			`c54x)`
13			`@@ -1547,6 +1547,9 @@`
14			`# system, and we'll never get to this point.`
15
16			`case $basic_machine in`
17			`+ zip-*)`
18			`+ os=-elf`
19			`+ ;;`
20			`score-*)`
21			`os=-elf`
22			`;;`
23			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/configure gcc-5.3.0-zip/configure`
24			`--- gcc-5.3.0-original/configure 2015-05-03 13:29:57.000000000 -0400`
25			`+++ gcc-5.3.0-zip/configure 2016-01-30 16:19:48.264867231 -0500`
26			`@@ -3927,6 +3927,8 @@`
27			`vax--)`
28			`noconfigdirs="$noconfigdirs target-newlib target-libgloss"`
29			`;;`
30			`+ zip*)`
31			`+ noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb gprof"`
32			`esac`
33
34			`# If we aren't building newlib, then don't build libgloss, since libgloss`
35			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/configure.ac gcc-5.3.0-zip/configure.ac`
36			`--- gcc-5.3.0-original/configure.ac 2015-05-03 13:29:57.000000000 -0400`
37			`+++ gcc-5.3.0-zip/configure.ac 2016-02-12 10:47:23.847194843 -0500`
38			`@@ -1274,6 +1274,10 @@`
39			`vax--)`
40			`noconfigdirs="$noconfigdirs target-newlib target-libgloss"`
41			`;;`
42			`+ zip*)`
43			`+ noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb gprof"`
44			`+ unsupported_languages="$unsupported_languages fortran java"`
45			`+ ;;`
46			`esac`
47
48			`# If we aren't building newlib, then don't build libgloss, since libgloss`
49			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/common/config/zip/zip-common.c gcc-5.3.0-zip/gcc/common/config/zip/zip-common.c`
50			`--- gcc-5.3.0-original/gcc/common/config/zip/zip-common.c 1969-12-31 19:00:00.000000000 -0500`
51			`+++ gcc-5.3.0-zip/gcc/common/config/zip/zip-common.c 2016-02-14 00:54:31.821055716 -0500`
52			`@@ -0,0 +1,52 @@`
53			`+////////////////////////////////////////////////////////////////////////////////`
54			`+//`
55			`+// Filename: common/config/zip/zip-common.c`
56			`+//`
57			`+// Project: Zip CPU backend for the GNU Compiler Collection`
58			`+//`
59			`+// Purpose: To eliminate the frame register automatically.`
60			`+//`
61			`+// Creator: Dan Gisselquist, Ph.D.`
62			`+// Gisselquist Technology, LLC`
63			`+//`
64			`+////////////////////////////////////////////////////////////////////////////////`
65			`+//`
66			`+// Copyright (C) 2016, Gisselquist Technology, LLC`
67			`+//`
68			`+// This program is free software (firmware): you can redistribute it and/or`
69			`+// modify it under the terms of the GNU General Public License as published`
70			`+// by the Free Software Foundation, either version 3 of the License, or (at`
71			`+// your option) any later version.`
72			`+//`
73			`+// This program is distributed in the hope that it will be useful, but WITHOUT`
74			`+// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or`
75			`+// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License`
76			`+// for more details.`
77			`+//`
78			`+// You should have received a copy of the GNU General Public License along`
79			`+// with this program. (It's in the $(ROOT)/doc directory, run make with no`
80			`+// target there if the PDF file isn't present.) If not, see`
81			`+// <http://www.gnu.org/licenses/> for a copy.`
82			`+//`
83			`+// License: GPL, v3, as defined and found on www.gnu.org,`
84			`+// http://www.gnu.org/licenses/gpl.html`
85			`+//`
86			`+//`
87			`+////////////////////////////////////////////////////////////////////////////////`
88			`+#include "config.h"`
89			`+#include "system.h"`
90			`+#include "coretypes.h"`
91			`+#include "tm.h"`
92			`+#include "common/common-target.h"`
93			`+#include "common/common-target-def.h"`
94			`+`
95			`+static const struct default_options zip_option_optimization_table[] =`
96			`+ {`
97			`+ { OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 },`
98			`+ { OPT_LEVELS_NONE, 0, NULL, 0 }`
99			`+ };`
100			`+`
101			`+#undef TARGET_OPTION_OPTIMIZATION_TABLE`
102			`+#define TARGET_OPTION_OPTIMIZATION_TABLE zip_option_optimization_table`
103			`+`
104			`+struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;`
105			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/aarch64/aarch64-linux.h gcc-5.3.0-zip/gcc/config/aarch64/aarch64-linux.h`
106	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/aarch64/aarch64-linux.h 2016-03-08 04:57:02.962902614 -0500`
107	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/aarch64/aarch64-linux.h 2015-07-24 12:00:26.000000000 -0400`
108			`@@ -21,7 +21,7 @@`
109			`#ifndef GCC_AARCH64_LINUX_H`
110			`#define GCC_AARCH64_LINUX_H`
111
112			`-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld-linux-aarch64%{mbig-endian:_be}%{mabi=ilp32:_ilp32}.so.1"`
113			`+#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-aarch64%{mbig-endian:_be}%{mabi=ilp32:_ilp32}.so.1"`
114
115			`#undef ASAN_CC1_SPEC`
116			`#define ASAN_CC1_SPEC "%{%:sanitize(address):-funwind-tables}"`
117			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/alpha/linux-elf.h gcc-5.3.0-zip/gcc/config/alpha/linux-elf.h`
118	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/alpha/linux-elf.h 2016-03-08 04:57:02.962902614 -0500`
119	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/alpha/linux-elf.h 2015-01-05 07:33:28.000000000 -0500`
120			`@@ -23,8 +23,8 @@`
121			`#define EXTRA_SPECS \`
122			`{ "elf_dynamic_linker", ELF_DYNAMIC_LINKER },`
123
124			`-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld-linux.so.2"`
125			`-#define UCLIBC_DYNAMIC_LINKER "/tools/lib/ld-uClibc.so.0"`
126			`+#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"`
127			`+#define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"`
128			`#if DEFAULT_LIBC == LIBC_UCLIBC`
129			`#define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}"`
130			`#elif DEFAULT_LIBC == LIBC_GLIBC`
131			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/arm/linux-eabi.h gcc-5.3.0-zip/gcc/config/arm/linux-eabi.h`
132	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/arm/linux-eabi.h 2016-03-08 04:57:02.962902614 -0500`
133	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/arm/linux-eabi.h 2015-01-05 07:33:28.000000000 -0500`
134			`@@ -68,8 +68,8 @@`
135			`GLIBC_DYNAMIC_LINKER_DEFAULT and TARGET_DEFAULT_FLOAT_ABI. */`
136
137			`#undef GLIBC_DYNAMIC_LINKER`
138			`-#define GLIBC_DYNAMIC_LINKER_SOFT_FLOAT "/tools/lib/ld-linux.so.3"`
139			`-#define GLIBC_DYNAMIC_LINKER_HARD_FLOAT "/tools/lib/ld-linux-armhf.so.3"`
140			`+#define GLIBC_DYNAMIC_LINKER_SOFT_FLOAT "/lib/ld-linux.so.3"`
141			`+#define GLIBC_DYNAMIC_LINKER_HARD_FLOAT "/lib/ld-linux-armhf.so.3"`
142			`#define GLIBC_DYNAMIC_LINKER_DEFAULT GLIBC_DYNAMIC_LINKER_SOFT_FLOAT`
143
144			`#define GLIBC_DYNAMIC_LINKER \`
145			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/arm/linux-elf.h gcc-5.3.0-zip/gcc/config/arm/linux-elf.h`
146	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/arm/linux-elf.h 2016-03-08 04:57:02.962902614 -0500`
147	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/arm/linux-elf.h 2015-06-23 05:26:54.000000000 -0400`
148			`@@ -62,7 +62,7 @@`
149
150			`#define LIBGCC_SPEC "%{mfloat-abi=soft*:-lfloat} -lgcc"`
151
152			`-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld-linux.so.2"`
153			`+#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"`
154
155			`#define LINUX_TARGET_LINK_SPEC "%{h*} \`
156			`%{static:-Bstatic} \`
157			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/bfin/linux.h gcc-5.3.0-zip/gcc/config/bfin/linux.h`
158	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/bfin/linux.h 2016-03-08 04:57:02.962902614 -0500`
159	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/bfin/linux.h 2015-01-05 07:33:28.000000000 -0500`
160			`@@ -45,7 +45,7 @@`
161			`%{shared:-G -Bdynamic} \`
162			`%{!shared: %{!static: \`
163			`%{rdynamic:-export-dynamic} \`
164			`- -dynamic-linker /tools/lib/ld-uClibc.so.0} \`
165			`+ -dynamic-linker /lib/ld-uClibc.so.0} \`
166			`%{static}} -init __init -fini __fini"`
167
168			`#undef TARGET_SUPPORTS_SYNC_CALLS`
169			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/cris/linux.h gcc-5.3.0-zip/gcc/config/cris/linux.h`
170	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/cris/linux.h 2016-03-08 04:57:02.962902614 -0500`
171	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/cris/linux.h 2015-01-05 07:33:28.000000000 -0500`
172			`@@ -102,7 +102,7 @@`
173			`#undef CRIS_DEFAULT_CPU_VERSION`
174			`#define CRIS_DEFAULT_CPU_VERSION CRIS_CPU_NG`
175
176			`-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld.so.1"`
177			`+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"`
178
179			`#undef CRIS_LINK_SUBTARGET_SPEC`
180			`#define CRIS_LINK_SUBTARGET_SPEC \`
181			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/freebsd-spec.h gcc-5.3.0-zip/gcc/config/freebsd-spec.h`
182	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/freebsd-spec.h 2016-03-08 04:57:02.962902614 -0500`
183	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/freebsd-spec.h 2015-06-25 13:53:14.000000000 -0400`
184			`@@ -129,9 +129,9 @@`
185			`#endif`
186
187			`#if FBSD_MAJOR < 6`
188			`-#define FBSD_DYNAMIC_LINKER "/tools/libexec/ld-elf.so.1"`
189			`+#define FBSD_DYNAMIC_LINKER "/usr/libexec/ld-elf.so.1"`
190			`#else`
191			`-#define FBSD_DYNAMIC_LINKER "/tools/libexec/ld-elf.so.1"`
192			`+#define FBSD_DYNAMIC_LINKER "/libexec/ld-elf.so.1"`
193			`#endif`
194
195			`/* NOTE: The freebsd-spec.h header is included also for various`
196			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/frv/linux.h gcc-5.3.0-zip/gcc/config/frv/linux.h`
197	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/frv/linux.h 2016-03-08 04:57:02.962902614 -0500`
198	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/frv/linux.h 2015-01-05 07:33:28.000000000 -0500`
199			`@@ -34,7 +34,7 @@`
200			`#define ENDFILE_SPEC \`
201			`"%{shared\|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"`
202
203			`-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld.so.1"`
204			`+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"`
205
206			`#undef LINK_SPEC`
207			`#define LINK_SPEC "\`
208			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/i386/gnu.h gcc-5.3.0-zip/gcc/config/i386/gnu.h`
209	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/i386/gnu.h 2016-03-08 04:57:02.962902614 -0500`
210	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/i386/gnu.h 2015-01-05 07:33:28.000000000 -0500`
211			`@@ -22,7 +22,7 @@`
212			`#define GNU_USER_LINK_EMULATION "elf_i386"`
213
214			`#undef GNU_USER_DYNAMIC_LINKER`
215			`-#define GNU_USER_DYNAMIC_LINKER "/tools/lib/ld.so"`
216			`+#define GNU_USER_DYNAMIC_LINKER "/lib/ld.so"`
217
218			`#undef STARTFILE_SPEC`
219			`#if defined HAVE_LD_PIE`
220			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/i386/kfreebsd-gnu64.h gcc-5.3.0-zip/gcc/config/i386/kfreebsd-gnu64.h`
221	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/i386/kfreebsd-gnu64.h 2016-03-08 04:57:02.962902614 -0500`
222	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/i386/kfreebsd-gnu64.h 2015-01-05 07:33:28.000000000 -0500`
223			`@@ -22,6 +22,6 @@`
224			`#define GNU_USER_LINK_EMULATION64 "elf_x86_64_fbsd"`
225			`#define GNU_USER_LINK_EMULATIONX32 "elf32_x86_64_fbsd"`
226
227			`-#define GLIBC_DYNAMIC_LINKER32 "/tools/lib/ld.so.1"`
228			`-#define GLIBC_DYNAMIC_LINKER64 "/tools/lib/ld-kfreebsd-x86-64.so.1"`
229			`-#define GLIBC_DYNAMIC_LINKERX32 "/tools/lib/ld-kfreebsd-x32.so.1"`
230			`+#define GLIBC_DYNAMIC_LINKER32 "/lib/ld.so.1"`
231			`+#define GLIBC_DYNAMIC_LINKER64 "/lib/ld-kfreebsd-x86-64.so.1"`
232			`+#define GLIBC_DYNAMIC_LINKERX32 "/lib/ld-kfreebsd-x32.so.1"`
233			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/i386/kfreebsd-gnu.h gcc-5.3.0-zip/gcc/config/i386/kfreebsd-gnu.h`
234	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/i386/kfreebsd-gnu.h 2016-03-08 04:57:02.962902614 -0500`
235	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/i386/kfreebsd-gnu.h 2015-01-05 07:33:28.000000000 -0500`
236			`@@ -19,4 +19,4 @@`
237			`<http://www.gnu.org/licenses/>. */`
238
239			`#define GNU_USER_LINK_EMULATION "elf_i386_fbsd"`
240			`-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld.so.1"`
241			`+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"`
242			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/i386/linux64.h gcc-5.3.0-zip/gcc/config/i386/linux64.h`
243	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/i386/linux64.h 2016-03-08 04:57:02.962902614 -0500`
244	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/i386/linux64.h 2015-01-05 07:33:28.000000000 -0500`
245			`@@ -27,6 +27,6 @@`
246			`#define GNU_USER_LINK_EMULATION64 "elf_x86_64"`
247			`#define GNU_USER_LINK_EMULATIONX32 "elf32_x86_64"`
248
249			`-#define GLIBC_DYNAMIC_LINKER32 "/tools/lib/ld-linux.so.2"`
250			`-#define GLIBC_DYNAMIC_LINKER64 "/tools/lib64/ld-linux-x86-64.so.2"`
251			`-#define GLIBC_DYNAMIC_LINKERX32 "/tools/libx32/ld-linux-x32.so.2"`
252			`+#define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"`
253			`+#define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux-x86-64.so.2"`
254			`+#define GLIBC_DYNAMIC_LINKERX32 "/libx32/ld-linux-x32.so.2"`
255			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/i386/linux.h gcc-5.3.0-zip/gcc/config/i386/linux.h`
256	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/i386/linux.h 2016-03-08 04:57:02.962902614 -0500`
257	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/i386/linux.h 2015-01-05 07:33:28.000000000 -0500`
258			`@@ -20,4 +20,4 @@`
259			`<http://www.gnu.org/licenses/>. */`
260
261			`#define GNU_USER_LINK_EMULATION "elf_i386"`
262			`-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld-linux.so.2"`
263			`+#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"`
264			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/ia64/linux.h gcc-5.3.0-zip/gcc/config/ia64/linux.h`
265	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/ia64/linux.h 2016-03-08 04:57:02.962902614 -0500`
266	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/ia64/linux.h 2015-01-05 07:33:28.000000000 -0500`
267			`@@ -55,7 +55,7 @@`
268			`/* Define this for shared library support because it isn't in the main`
269			`linux.h file. */`
270
271			`-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld-linux-ia64.so.2"`
272			`+#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-ia64.so.2"`
273
274			`#undef LINK_SPEC`
275			`#define LINK_SPEC "\`
276			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/knetbsd-gnu.h gcc-5.3.0-zip/gcc/config/knetbsd-gnu.h`
277	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/knetbsd-gnu.h 2016-03-08 04:57:02.962902614 -0500`
278	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/knetbsd-gnu.h 2015-01-05 07:33:28.000000000 -0500`
279			`@@ -32,4 +32,4 @@`
280
281
282			`#undef GNU_USER_DYNAMIC_LINKER`
283			`-#define GNU_USER_DYNAMIC_LINKER "/tools/lib/ld.so.1"`
284			`+#define GNU_USER_DYNAMIC_LINKER "/lib/ld.so.1"`
285			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/kopensolaris-gnu.h gcc-5.3.0-zip/gcc/config/kopensolaris-gnu.h`
286	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/kopensolaris-gnu.h 2016-03-08 04:57:02.962902614 -0500`
287	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/kopensolaris-gnu.h 2015-01-05 07:33:28.000000000 -0500`
288			`@@ -31,5 +31,4 @@`
289			`while (0)`
290
291			`#undef GNU_USER_DYNAMIC_LINKER`
292			`-#define GNU_USER_DYNAMIC_LINKER "/tools/lib/ld.so.1"`
293			`-`
294			`+#define GNU_USER_DYNAMIC_LINKER "/lib/ld.so.1"`
295			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/linux.h gcc-5.3.0-zip/gcc/config/linux.h`
296	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/linux.h 2016-03-08 04:57:02.962902614 -0500`
297	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/linux.h 2015-01-05 07:33:28.000000000 -0500`
298			`@@ -73,10 +73,10 @@`
299			`GLIBC_DYNAMIC_LINKER must be defined for each target using them, or`
300			`GLIBC_DYNAMIC_LINKER32 and GLIBC_DYNAMIC_LINKER64 for targets`
301			`supporting both 32-bit and 64-bit compilation. */`
302			`-#define UCLIBC_DYNAMIC_LINKER "/tools/lib/ld-uClibc.so.0"`
303			`-#define UCLIBC_DYNAMIC_LINKER32 "/tools/lib/ld-uClibc.so.0"`
304			`-#define UCLIBC_DYNAMIC_LINKER64 "/tools/lib/ld64-uClibc.so.0"`
305			`-#define UCLIBC_DYNAMIC_LINKERX32 "/tools/lib/ldx32-uClibc.so.0"`
306			`+#define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"`
307			`+#define UCLIBC_DYNAMIC_LINKER32 "/lib/ld-uClibc.so.0"`
308			`+#define UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0"`
309			`+#define UCLIBC_DYNAMIC_LINKERX32 "/lib/ldx32-uClibc.so.0"`
310			`#define BIONIC_DYNAMIC_LINKER "/system/bin/linker"`
311			`#define BIONIC_DYNAMIC_LINKER32 "/system/bin/linker"`
312			`#define BIONIC_DYNAMIC_LINKER64 "/system/bin/linker64"`
313			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/lm32/uclinux-elf.h gcc-5.3.0-zip/gcc/config/lm32/uclinux-elf.h`
314	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/lm32/uclinux-elf.h 2016-03-08 04:57:02.962902614 -0500`
315	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/lm32/uclinux-elf.h 2015-01-05 07:33:28.000000000 -0500`
316			`@@ -67,7 +67,7 @@`
317			`%{shared:-shared} \`
318			`%{symbolic:-Bsymbolic} \`
319			`%{rdynamic:-export-dynamic} \`
320			`- -dynamic-linker /tools/lib/ld-linux.so.2"`
321			`+ -dynamic-linker /lib/ld-linux.so.2"`
322
323			`#define TARGET_OS_CPP_BUILTINS() GNU_USER_TARGET_OS_CPP_BUILTINS()`
324
325			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/m68k/linux.h gcc-5.3.0-zip/gcc/config/m68k/linux.h`
326	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/m68k/linux.h 2016-03-08 04:57:02.962902614 -0500`
327	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/m68k/linux.h 2015-01-05 07:33:28.000000000 -0500`
328			`@@ -71,7 +71,7 @@`
329			`When the -shared link option is used a final link is not being`
330			`done. */`
331
332			`-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld.so.1"`
333			`+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"`
334
335			`#undef LINK_SPEC`
336			`#define LINK_SPEC "-m m68kelf %{shared} \`
337			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/microblaze/linux.h gcc-5.3.0-zip/gcc/config/microblaze/linux.h`
338	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/microblaze/linux.h 2016-03-08 04:57:02.962902614 -0500`
339	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/microblaze/linux.h 2015-05-28 10:08:19.000000000 -0400`
340			`@@ -28,7 +28,7 @@`
341			`#undef TLS_NEEDS_GOT`
342			`#define TLS_NEEDS_GOT 1`
343
344			`-#define DYNAMIC_LINKER "/tools/lib/ld.so.1"`
345			`+#define DYNAMIC_LINKER "/lib/ld.so.1"`
346			`#undef SUBTARGET_EXTRA_SPECS`
347			`#define SUBTARGET_EXTRA_SPECS \`
348			`{ "dynamic_linker", DYNAMIC_LINKER }`
349			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/mips/linux.h gcc-5.3.0-zip/gcc/config/mips/linux.h`
350	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/mips/linux.h 2016-03-08 04:57:02.962902614 -0500`
351	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/mips/linux.h 2015-01-05 07:33:28.000000000 -0500`
352			`@@ -22,20 +22,20 @@`
353			`#define GNU_USER_LINK_EMULATIONN32 "elf32%{EB:b}%{EL:l}tsmipn32"`
354
355			`#define GLIBC_DYNAMIC_LINKER32 \`
356			`- "%{mnan=2008:/tools/lib/ld-linux-mipsn8.so.1;:/tools/lib/ld.so.1}"`
357			`+ "%{mnan=2008:/lib/ld-linux-mipsn8.so.1;:/lib/ld.so.1}"`
358			`#define GLIBC_DYNAMIC_LINKER64 \`
359			`- "%{mnan=2008:/tools/lib64/ld-linux-mipsn8.so.1;:/tools/lib64/ld.so.1}"`
360			`+ "%{mnan=2008:/lib64/ld-linux-mipsn8.so.1;:/lib64/ld.so.1}"`
361			`#define GLIBC_DYNAMIC_LINKERN32 \`
362			`- "%{mnan=2008:/tools/lib32/ld-linux-mipsn8.so.1;:/tools/lib32/ld.so.1}"`
363			`+ "%{mnan=2008:/lib32/ld-linux-mipsn8.so.1;:/lib32/ld.so.1}"`
364
365			`#undef UCLIBC_DYNAMIC_LINKER32`
366			`#define UCLIBC_DYNAMIC_LINKER32 \`
367			`- "%{mnan=2008:/tools/lib/ld-uClibc-mipsn8.so.0;:/tools/lib/ld-uClibc.so.0}"`
368			`+ "%{mnan=2008:/lib/ld-uClibc-mipsn8.so.0;:/lib/ld-uClibc.so.0}"`
369			`#undef UCLIBC_DYNAMIC_LINKER64`
370			`#define UCLIBC_DYNAMIC_LINKER64 \`
371			`- "%{mnan=2008:/tools/lib/ld64-uClibc-mipsn8.so.0;:/tools/lib/ld64-uClibc.so.0}"`
372			`+ "%{mnan=2008:/lib/ld64-uClibc-mipsn8.so.0;:/lib/ld64-uClibc.so.0}"`
373			`#define UCLIBC_DYNAMIC_LINKERN32 \`
374			`- "%{mnan=2008:/tools/lib32/ld-uClibc-mipsn8.so.0;:/tools/lib32/ld-uClibc.so.0}"`
375			`+ "%{mnan=2008:/lib32/ld-uClibc-mipsn8.so.0;:/lib32/ld-uClibc.so.0}"`
376
377			`#define BIONIC_DYNAMIC_LINKERN32 "/system/bin/linker32"`
378			`#define GNU_USER_DYNAMIC_LINKERN32 \`
379			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/mn10300/linux.h gcc-5.3.0-zip/gcc/config/mn10300/linux.h`
380	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/mn10300/linux.h 2016-03-08 04:57:02.962902614 -0500`
381	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/mn10300/linux.h 2015-01-05 07:33:28.000000000 -0500`
382			`@@ -32,7 +32,7 @@`
383			`#undef ASM_SPEC`
384			`#define ASM_SPEC ""`
385
386			`-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld.so.1"`
387			`+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"`
388
389			`#undef LINK_SPEC`
390			`#define LINK_SPEC "%{mrelax:--relax} %{shared:-shared} \`
391			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/pa/pa-linux.h gcc-5.3.0-zip/gcc/config/pa/pa-linux.h`
392	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/pa/pa-linux.h 2016-03-08 04:57:02.962902614 -0500`
393	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/pa/pa-linux.h 2015-09-24 20:04:26.000000000 -0400`
394			`@@ -37,7 +37,7 @@`
395			`/* Define this for shared library support because it isn't in the main`
396			`linux.h file. */`
397
398			`-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld.so.1"`
399			`+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"`
400
401			`#undef LINK_SPEC`
402			`#define LINK_SPEC "\`
403			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/rs6000/linux64.h gcc-5.3.0-zip/gcc/config/rs6000/linux64.h`
404	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/rs6000/linux64.h 2016-03-08 04:57:02.966902587 -0500`
405	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/rs6000/linux64.h 2015-03-09 19:18:57.000000000 -0400`
406			`@@ -357,14 +357,14 @@`
407			`#undef LINK_OS_DEFAULT_SPEC`
408			`#define LINK_OS_DEFAULT_SPEC "%(link_os_linux)"`
409
410			`-#define GLIBC_DYNAMIC_LINKER32 "/tools/lib/ld.so.1"`
411			`+#define GLIBC_DYNAMIC_LINKER32 "/lib/ld.so.1"`
412			`#ifdef LINUX64_DEFAULT_ABI_ELFv2`
413			`-#define GLIBC_DYNAMIC_LINKER64 "%{mabi=elfv1:/tools/lib64/ld64.so.1;:/tools/lib64/ld64.so.2}"`
414			`+#define GLIBC_DYNAMIC_LINKER64 "%{mabi=elfv1:/lib64/ld64.so.1;:/lib64/ld64.so.2}"`
415			`#else`
416			`-#define GLIBC_DYNAMIC_LINKER64 "%{mabi=elfv2:/tools/lib64/ld64.so.2;:/tools/lib64/ld64.so.1}"`
417			`+#define GLIBC_DYNAMIC_LINKER64 "%{mabi=elfv2:/lib64/ld64.so.2;:/lib64/ld64.so.1}"`
418			`#endif`
419			`-#define UCLIBC_DYNAMIC_LINKER32 "/tools/lib/ld-uClibc.so.0"`
420			`-#define UCLIBC_DYNAMIC_LINKER64 "/tools/lib/ld64-uClibc.so.0"`
421			`+#define UCLIBC_DYNAMIC_LINKER32 "/lib/ld-uClibc.so.0"`
422			`+#define UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0"`
423			`#if DEFAULT_LIBC == LIBC_UCLIBC`
424			`#define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}"`
425			`#elif DEFAULT_LIBC == LIBC_GLIBC`
426			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/rs6000/sysv4.h gcc-5.3.0-zip/gcc/config/rs6000/sysv4.h`
427	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/rs6000/sysv4.h 2016-03-08 04:57:02.966902587 -0500`
428	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/rs6000/sysv4.h 2015-09-24 09:46:45.000000000 -0400`
429			`@@ -757,8 +757,8 @@`
430
431			`#define LINK_START_LINUX_SPEC ""`
432
433			`-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld.so.1"`
434			`-#define UCLIBC_DYNAMIC_LINKER "/tools/lib/ld-uClibc.so.0"`
435			`+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"`
436			`+#define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"`
437			`#if DEFAULT_LIBC == LIBC_UCLIBC`
438			`#define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}"`
439			`#elif !defined (DEFAULT_LIBC) \|\| DEFAULT_LIBC == LIBC_GLIBC`
440			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/s390/linux.h gcc-5.3.0-zip/gcc/config/s390/linux.h`
441	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/s390/linux.h 2016-03-08 04:57:02.966902587 -0500`
442	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/s390/linux.h 2015-05-11 03:14:10.000000000 -0400`
443			`@@ -60,8 +60,8 @@`
444			`#define MULTILIB_DEFAULTS { "m31" }`
445			`#endif`
446
447			`-#define GLIBC_DYNAMIC_LINKER32 "/tools/lib/ld.so.1"`
448			`-#define GLIBC_DYNAMIC_LINKER64 "/tools/lib/ld64.so.1"`
449			`+#define GLIBC_DYNAMIC_LINKER32 "/lib/ld.so.1"`
450			`+#define GLIBC_DYNAMIC_LINKER64 "/lib/ld64.so.1"`
451
452			`#undef LINK_SPEC`
453			`#define LINK_SPEC \`
454			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/sh/linux.h gcc-5.3.0-zip/gcc/config/sh/linux.h`
455	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/sh/linux.h 2016-03-08 04:57:02.966902587 -0500`
456	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/sh/linux.h 2015-01-05 07:33:28.000000000 -0500`
457			`@@ -43,7 +43,7 @@`
458
459			`#define TARGET_ASM_FILE_END file_end_indicate_exec_stack`
460
461			`-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld-linux.so.2"`
462			`+#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"`
463
464			`#undef SUBTARGET_LINK_EMUL_SUFFIX`
465			`#define SUBTARGET_LINK_EMUL_SUFFIX "_linux"`
466			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/sparc/linux64.h gcc-5.3.0-zip/gcc/config/sparc/linux64.h`
467	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/sparc/linux64.h 2016-03-08 04:57:02.966902587 -0500`
468	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/sparc/linux64.h 2015-01-05 07:33:28.000000000 -0500`
469			`@@ -84,8 +84,8 @@`
470			`When the -shared link option is used a final link is not being`
471			`done. */`
472
473			`-#define GLIBC_DYNAMIC_LINKER32 "/tools/lib/ld-linux.so.2"`
474			`-#define GLIBC_DYNAMIC_LINKER64 "/tools/lib64/ld-linux.so.2"`
475			`+#define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"`
476			`+#define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux.so.2"`
477
478			`#ifdef SPARC_BI_ARCH`
479
480			`@@ -193,7 +193,7 @@`
481			`#else /* !SPARC_BI_ARCH */`
482
483			`#undef LINK_SPEC`
484			`-#define LINK_SPEC "-m elf64_sparc -Y P,%R/tools/lib64 %{shared:-shared} \`
485			`+#define LINK_SPEC "-m elf64_sparc -Y P,%R/usr/lib64 %{shared:-shared} \`
486			`%{!shared: \`
487			`%{!static: \`
488			`%{rdynamic:-export-dynamic} \`
489			`diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/sparc/linux.h gcc-5.3.0-zip/gcc/config/sparc/linux.h`
490	103	dgisselq	`--- gcc-5.3.0-original/gcc/config/sparc/linux.h 2016-03-08 04:57:02.966902587 -0500`
491	102	dgisselq	`+++ gcc-5.3.0-zip/gcc/config/sparc/linux.h 2015-01-05 07:33:28.000000000 -0500`
492			`@@ -83,7 +83,7 @@`
493			`When the -shared link option is used a final link is not being`
494			`done. */`
495
496			`-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld-linux.so.2"`
497			`+#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"`
498
499			`#undef LINK_SPEC`
500			`#define LINK_SPEC "-m elf32_sparc %{shared:-shared} \`
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