OpenCores
URL https://opencores.org/ocsvn/zipcpu/zipcpu/trunk

Subversion Repositories zipcpu

[/] [zipcpu/] [trunk/] [sw/] [gcc-zippatch.patch] - Blame information for rev 127

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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
49 117 dgisselq
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/cfgexpand.c gcc-5.3.0-zip/gcc/cfgexpand.c
50
--- gcc-5.3.0-original/gcc/cfgexpand.c  2015-07-23 06:39:26.000000000 -0400
51
+++ gcc-5.3.0-zip/gcc/cfgexpand.c       2016-04-01 06:40:17.288326711 -0400
52
@@ -108,6 +108,14 @@
53
 #include "tree-chkp.h"
54
 #include "rtl-chkp.h"
55
 
56
+#ifdef DO_ZIP_DEBUGS
57
+#include <stdio.h>
58
+#define ZIP_DEBUG_LINE(STR,RTX) do{fprintf(stderr,"%s:%d/%s\n",__FILE__,__LINE__,STR); zip_debug_rtx(RTX);} while(0)
59
+extern void    zip_debug_rtx(const_rtx);
60
+#else
61
+#define        ZIP_DEBUG_LINE(STR,RTX)
62
+#endif
63
+
64
 /* Some systems use __main in a way incompatible with its use in gcc, in these
65
    cases use the macros NAME__MAIN to give a quoted symbol and SYMBOL__MAIN to
66
    give the same symbol without quotes for an alternative entry point.  You
67 111 dgisselq
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/cgraphbuild.c gcc-5.3.0-zip/gcc/cgraphbuild.c
68
--- gcc-5.3.0-original/gcc/cgraphbuild.c        2015-01-09 15:18:42.000000000 -0500
69
+++ gcc-5.3.0-zip/gcc/cgraphbuild.c     2016-03-24 22:13:24.815287808 -0400
70
@@ -62,6 +62,13 @@
71
 #include "ipa-prop.h"
72
 #include "ipa-inline.h"
73
 
74
+#ifdef DO_ZIP_DEBUGS
75
+extern void zip_debug_rtx(const_rtx);
76
+#define        ZIP_DEBUG_LINE(STR,RTX) do { fprintf(stderr, "%s:%d/%s\n", __FILE__,__LINE__,STR); zip_debug_rtx(RTX); } while(0)
77
+#else
78
+#define        ZIP_DEBUG_LINE(STR,RTX)
79
+#endif
80
+
81
 /* Context of record_reference.  */
82
 struct record_reference_ctx
83
 {
84 102 dgisselq
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
85
--- gcc-5.3.0-original/gcc/common/config/zip/zip-common.c       1969-12-31 19:00:00.000000000 -0500
86
+++ gcc-5.3.0-zip/gcc/common/config/zip/zip-common.c    2016-02-14 00:54:31.821055716 -0500
87
@@ -0,0 +1,52 @@
88
+////////////////////////////////////////////////////////////////////////////////
89
+//
90
+// Filename:   common/config/zip/zip-common.c
91
+//
92
+// Project:    Zip CPU backend for the GNU Compiler Collection
93
+//
94
+// Purpose:    To eliminate the frame register automatically.
95
+//
96
+// Creator:    Dan Gisselquist, Ph.D.
97
+//             Gisselquist Technology, LLC
98
+//
99
+////////////////////////////////////////////////////////////////////////////////
100
+//
101
+// Copyright (C) 2016, Gisselquist Technology, LLC
102
+//
103
+// This program is free software (firmware): you can redistribute it and/or
104
+// modify it under the terms of  the GNU General Public License as published
105
+// by the Free Software Foundation, either version 3 of the License, or (at
106
+// your option) any later version.
107
+//
108
+// This program is distributed in the hope that it will be useful, but WITHOUT
109
+// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
110
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
111
+// for more details.
112
+//
113
+// You should have received a copy of the GNU General Public License along
114
+// with this program.  (It's in the $(ROOT)/doc directory, run make with no
115
+// target there if the PDF file isn't present.)  If not, see
116
+// <http://www.gnu.org/licenses/> for a copy.
117
+//
118
+// License:    GPL, v3, as defined and found on www.gnu.org,
119
+//             http://www.gnu.org/licenses/gpl.html
120
+//
121
+//
122
+////////////////////////////////////////////////////////////////////////////////
123
+#include "config.h"
124
+#include "system.h"
125
+#include "coretypes.h"
126
+#include "tm.h"
127
+#include "common/common-target.h"
128
+#include "common/common-target-def.h"
129
+
130
+static const struct default_options zip_option_optimization_table[] =
131
+  {
132
+    { OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 },
133
+    { OPT_LEVELS_NONE, 0, NULL, 0 }
134
+  };
135
+
136
+#undef TARGET_OPTION_OPTIMIZATION_TABLE
137
+#define        TARGET_OPTION_OPTIMIZATION_TABLE        zip_option_optimization_table
138
+
139
+struct gcc_targetm_common      targetm_common = TARGETM_COMMON_INITIALIZER;
140
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
141 127 dgisselq
--- gcc-5.3.0-original/gcc/config/aarch64/aarch64-linux.h       2016-04-21 20:04:11.745606740 -0400
142 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/aarch64/aarch64-linux.h    2015-07-24 12:00:26.000000000 -0400
143
@@ -21,7 +21,7 @@
144
 #ifndef GCC_AARCH64_LINUX_H
145
 #define GCC_AARCH64_LINUX_H
146
 
147
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld-linux-aarch64%{mbig-endian:_be}%{mabi=ilp32:_ilp32}.so.1"
148
+#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-aarch64%{mbig-endian:_be}%{mabi=ilp32:_ilp32}.so.1"
149
 
150
 #undef  ASAN_CC1_SPEC
151
 #define ASAN_CC1_SPEC "%{%:sanitize(address):-funwind-tables}"
152
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
153 127 dgisselq
--- gcc-5.3.0-original/gcc/config/alpha/linux-elf.h     2016-04-21 20:04:11.761606648 -0400
154 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/alpha/linux-elf.h  2015-01-05 07:33:28.000000000 -0500
155
@@ -23,8 +23,8 @@
156
 #define EXTRA_SPECS \
157
 { "elf_dynamic_linker", ELF_DYNAMIC_LINKER },
158
 
159
-#define GLIBC_DYNAMIC_LINKER   "/tools/lib/ld-linux.so.2"
160
-#define UCLIBC_DYNAMIC_LINKER "/tools/lib/ld-uClibc.so.0"
161
+#define GLIBC_DYNAMIC_LINKER   "/lib/ld-linux.so.2"
162
+#define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
163
 #if DEFAULT_LIBC == LIBC_UCLIBC
164
 #define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}"
165
 #elif DEFAULT_LIBC == LIBC_GLIBC
166
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
167 127 dgisselq
--- gcc-5.3.0-original/gcc/config/arm/linux-eabi.h      2016-04-21 20:04:11.761606648 -0400
168 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/arm/linux-eabi.h   2015-01-05 07:33:28.000000000 -0500
169
@@ -68,8 +68,8 @@
170
    GLIBC_DYNAMIC_LINKER_DEFAULT and TARGET_DEFAULT_FLOAT_ABI.  */
171
 
172
 #undef  GLIBC_DYNAMIC_LINKER
173
-#define GLIBC_DYNAMIC_LINKER_SOFT_FLOAT "/tools/lib/ld-linux.so.3"
174
-#define GLIBC_DYNAMIC_LINKER_HARD_FLOAT "/tools/lib/ld-linux-armhf.so.3"
175
+#define GLIBC_DYNAMIC_LINKER_SOFT_FLOAT "/lib/ld-linux.so.3"
176
+#define GLIBC_DYNAMIC_LINKER_HARD_FLOAT "/lib/ld-linux-armhf.so.3"
177
 #define GLIBC_DYNAMIC_LINKER_DEFAULT GLIBC_DYNAMIC_LINKER_SOFT_FLOAT
178
 
179
 #define GLIBC_DYNAMIC_LINKER \
180
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
181 127 dgisselq
--- gcc-5.3.0-original/gcc/config/arm/linux-elf.h       2016-04-21 20:04:11.761606648 -0400
182 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/arm/linux-elf.h    2015-06-23 05:26:54.000000000 -0400
183
@@ -62,7 +62,7 @@
184
 
185
 #define LIBGCC_SPEC "%{mfloat-abi=soft*:-lfloat} -lgcc"
186
 
187
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld-linux.so.2"
188
+#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
189
 
190
 #define LINUX_TARGET_LINK_SPEC  "%{h*} \
191
    %{static:-Bstatic} \
192
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/bfin/linux.h gcc-5.3.0-zip/gcc/config/bfin/linux.h
193 127 dgisselq
--- gcc-5.3.0-original/gcc/config/bfin/linux.h  2016-04-21 20:04:11.761606648 -0400
194 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/bfin/linux.h       2015-01-05 07:33:28.000000000 -0500
195
@@ -45,7 +45,7 @@
196
   %{shared:-G -Bdynamic} \
197
   %{!shared: %{!static: \
198
    %{rdynamic:-export-dynamic} \
199
-   -dynamic-linker /tools/lib/ld-uClibc.so.0} \
200
+   -dynamic-linker /lib/ld-uClibc.so.0} \
201
    %{static}} -init __init -fini __fini"
202
 
203
 #undef TARGET_SUPPORTS_SYNC_CALLS
204
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/cris/linux.h gcc-5.3.0-zip/gcc/config/cris/linux.h
205 127 dgisselq
--- gcc-5.3.0-original/gcc/config/cris/linux.h  2016-04-21 20:04:11.761606648 -0400
206 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/cris/linux.h       2015-01-05 07:33:28.000000000 -0500
207
@@ -102,7 +102,7 @@
208
 #undef CRIS_DEFAULT_CPU_VERSION
209
 #define CRIS_DEFAULT_CPU_VERSION CRIS_CPU_NG
210
 
211
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld.so.1"
212
+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
213
 
214
 #undef CRIS_LINK_SUBTARGET_SPEC
215
 #define CRIS_LINK_SUBTARGET_SPEC \
216
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/freebsd-spec.h gcc-5.3.0-zip/gcc/config/freebsd-spec.h
217 127 dgisselq
--- gcc-5.3.0-original/gcc/config/freebsd-spec.h        2016-04-21 20:04:11.761606648 -0400
218 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/freebsd-spec.h     2015-06-25 13:53:14.000000000 -0400
219
@@ -129,9 +129,9 @@
220
 #endif
221
 
222
 #if FBSD_MAJOR < 6
223
-#define FBSD_DYNAMIC_LINKER "/tools/libexec/ld-elf.so.1"
224
+#define FBSD_DYNAMIC_LINKER "/usr/libexec/ld-elf.so.1"
225
 #else
226
-#define FBSD_DYNAMIC_LINKER "/tools/libexec/ld-elf.so.1"
227
+#define FBSD_DYNAMIC_LINKER "/libexec/ld-elf.so.1"
228
 #endif
229
 
230
 /* NOTE: The freebsd-spec.h header is included also for various
231
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/frv/linux.h gcc-5.3.0-zip/gcc/config/frv/linux.h
232 127 dgisselq
--- gcc-5.3.0-original/gcc/config/frv/linux.h   2016-04-21 20:04:11.761606648 -0400
233 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/frv/linux.h        2015-01-05 07:33:28.000000000 -0500
234
@@ -34,7 +34,7 @@
235
 #define ENDFILE_SPEC \
236
   "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
237
 
238
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld.so.1"
239
+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
240
 
241
 #undef LINK_SPEC
242
 #define LINK_SPEC "\
243
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/i386/gnu.h gcc-5.3.0-zip/gcc/config/i386/gnu.h
244 127 dgisselq
--- gcc-5.3.0-original/gcc/config/i386/gnu.h    2016-04-21 20:04:11.761606648 -0400
245 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/i386/gnu.h 2015-01-05 07:33:28.000000000 -0500
246
@@ -22,7 +22,7 @@
247
 #define GNU_USER_LINK_EMULATION "elf_i386"
248
 
249
 #undef GNU_USER_DYNAMIC_LINKER
250
-#define GNU_USER_DYNAMIC_LINKER "/tools/lib/ld.so"
251
+#define GNU_USER_DYNAMIC_LINKER "/lib/ld.so"
252
 
253
 #undef STARTFILE_SPEC
254
 #if defined HAVE_LD_PIE
255
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
256 127 dgisselq
--- gcc-5.3.0-original/gcc/config/i386/kfreebsd-gnu64.h 2016-04-21 20:04:11.761606648 -0400
257 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/i386/kfreebsd-gnu64.h      2015-01-05 07:33:28.000000000 -0500
258
@@ -22,6 +22,6 @@
259
 #define GNU_USER_LINK_EMULATION64 "elf_x86_64_fbsd"
260
 #define GNU_USER_LINK_EMULATIONX32 "elf32_x86_64_fbsd"
261
 
262
-#define GLIBC_DYNAMIC_LINKER32 "/tools/lib/ld.so.1"
263
-#define GLIBC_DYNAMIC_LINKER64 "/tools/lib/ld-kfreebsd-x86-64.so.1"
264
-#define GLIBC_DYNAMIC_LINKERX32 "/tools/lib/ld-kfreebsd-x32.so.1"
265
+#define GLIBC_DYNAMIC_LINKER32 "/lib/ld.so.1"
266
+#define GLIBC_DYNAMIC_LINKER64 "/lib/ld-kfreebsd-x86-64.so.1"
267
+#define GLIBC_DYNAMIC_LINKERX32 "/lib/ld-kfreebsd-x32.so.1"
268
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
269 127 dgisselq
--- gcc-5.3.0-original/gcc/config/i386/kfreebsd-gnu.h   2016-04-21 20:04:11.761606648 -0400
270 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/i386/kfreebsd-gnu.h        2015-01-05 07:33:28.000000000 -0500
271
@@ -19,4 +19,4 @@
272
 <http://www.gnu.org/licenses/>.  */
273
 
274
 #define GNU_USER_LINK_EMULATION "elf_i386_fbsd"
275
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld.so.1"
276
+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
277
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/i386/linux64.h gcc-5.3.0-zip/gcc/config/i386/linux64.h
278 127 dgisselq
--- gcc-5.3.0-original/gcc/config/i386/linux64.h        2016-04-21 20:04:11.761606648 -0400
279 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/i386/linux64.h     2015-01-05 07:33:28.000000000 -0500
280
@@ -27,6 +27,6 @@
281
 #define GNU_USER_LINK_EMULATION64 "elf_x86_64"
282
 #define GNU_USER_LINK_EMULATIONX32 "elf32_x86_64"
283
 
284
-#define GLIBC_DYNAMIC_LINKER32 "/tools/lib/ld-linux.so.2"
285
-#define GLIBC_DYNAMIC_LINKER64 "/tools/lib64/ld-linux-x86-64.so.2"
286
-#define GLIBC_DYNAMIC_LINKERX32 "/tools/libx32/ld-linux-x32.so.2"
287
+#define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"
288
+#define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux-x86-64.so.2"
289
+#define GLIBC_DYNAMIC_LINKERX32 "/libx32/ld-linux-x32.so.2"
290
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/i386/linux.h gcc-5.3.0-zip/gcc/config/i386/linux.h
291 127 dgisselq
--- gcc-5.3.0-original/gcc/config/i386/linux.h  2016-04-21 20:04:11.761606648 -0400
292 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/i386/linux.h       2015-01-05 07:33:28.000000000 -0500
293
@@ -20,4 +20,4 @@
294
 <http://www.gnu.org/licenses/>.  */
295
 
296
 #define GNU_USER_LINK_EMULATION "elf_i386"
297
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld-linux.so.2"
298
+#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
299
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/ia64/linux.h gcc-5.3.0-zip/gcc/config/ia64/linux.h
300 127 dgisselq
--- gcc-5.3.0-original/gcc/config/ia64/linux.h  2016-04-21 20:04:11.761606648 -0400
301 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/ia64/linux.h       2015-01-05 07:33:28.000000000 -0500
302
@@ -55,7 +55,7 @@
303
 /* Define this for shared library support because it isn't in the main
304
    linux.h file.  */
305
 
306
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld-linux-ia64.so.2"
307
+#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-ia64.so.2"
308
 
309
 #undef LINK_SPEC
310
 #define LINK_SPEC "\
311
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/knetbsd-gnu.h gcc-5.3.0-zip/gcc/config/knetbsd-gnu.h
312 127 dgisselq
--- gcc-5.3.0-original/gcc/config/knetbsd-gnu.h 2016-04-21 20:04:11.761606648 -0400
313 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/knetbsd-gnu.h      2015-01-05 07:33:28.000000000 -0500
314
@@ -32,4 +32,4 @@
315
 
316
 
317
 #undef GNU_USER_DYNAMIC_LINKER
318
-#define GNU_USER_DYNAMIC_LINKER "/tools/lib/ld.so.1"
319
+#define GNU_USER_DYNAMIC_LINKER "/lib/ld.so.1"
320
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/kopensolaris-gnu.h gcc-5.3.0-zip/gcc/config/kopensolaris-gnu.h
321 127 dgisselq
--- gcc-5.3.0-original/gcc/config/kopensolaris-gnu.h    2016-04-21 20:04:11.761606648 -0400
322 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/kopensolaris-gnu.h 2015-01-05 07:33:28.000000000 -0500
323
@@ -31,5 +31,4 @@
324
   while (0)
325
 
326
 #undef GNU_USER_DYNAMIC_LINKER
327
-#define GNU_USER_DYNAMIC_LINKER "/tools/lib/ld.so.1"
328
-
329
+#define GNU_USER_DYNAMIC_LINKER "/lib/ld.so.1"
330
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/linux.h gcc-5.3.0-zip/gcc/config/linux.h
331 127 dgisselq
--- gcc-5.3.0-original/gcc/config/linux.h       2016-04-21 20:04:11.761606648 -0400
332 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/linux.h    2015-01-05 07:33:28.000000000 -0500
333
@@ -73,10 +73,10 @@
334
    GLIBC_DYNAMIC_LINKER must be defined for each target using them, or
335
    GLIBC_DYNAMIC_LINKER32 and GLIBC_DYNAMIC_LINKER64 for targets
336
    supporting both 32-bit and 64-bit compilation.  */
337
-#define UCLIBC_DYNAMIC_LINKER "/tools/lib/ld-uClibc.so.0"
338
-#define UCLIBC_DYNAMIC_LINKER32 "/tools/lib/ld-uClibc.so.0"
339
-#define UCLIBC_DYNAMIC_LINKER64 "/tools/lib/ld64-uClibc.so.0"
340
-#define UCLIBC_DYNAMIC_LINKERX32 "/tools/lib/ldx32-uClibc.so.0"
341
+#define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
342
+#define UCLIBC_DYNAMIC_LINKER32 "/lib/ld-uClibc.so.0"
343
+#define UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0"
344
+#define UCLIBC_DYNAMIC_LINKERX32 "/lib/ldx32-uClibc.so.0"
345
 #define BIONIC_DYNAMIC_LINKER "/system/bin/linker"
346
 #define BIONIC_DYNAMIC_LINKER32 "/system/bin/linker"
347
 #define BIONIC_DYNAMIC_LINKER64 "/system/bin/linker64"
348
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
349 127 dgisselq
--- gcc-5.3.0-original/gcc/config/lm32/uclinux-elf.h    2016-04-21 20:04:11.761606648 -0400
350 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/lm32/uclinux-elf.h 2015-01-05 07:33:28.000000000 -0500
351
@@ -67,7 +67,7 @@
352
    %{shared:-shared} \
353
    %{symbolic:-Bsymbolic} \
354
    %{rdynamic:-export-dynamic} \
355
-   -dynamic-linker /tools/lib/ld-linux.so.2"
356
+   -dynamic-linker /lib/ld-linux.so.2"
357
 
358
 #define TARGET_OS_CPP_BUILTINS() GNU_USER_TARGET_OS_CPP_BUILTINS()
359
 
360
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/m68k/linux.h gcc-5.3.0-zip/gcc/config/m68k/linux.h
361 127 dgisselq
--- gcc-5.3.0-original/gcc/config/m68k/linux.h  2016-04-21 20:04:11.761606648 -0400
362 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/m68k/linux.h       2015-01-05 07:33:28.000000000 -0500
363
@@ -71,7 +71,7 @@
364
    When the -shared link option is used a final link is not being
365
    done.  */
366
 
367
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld.so.1"
368
+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
369
 
370
 #undef LINK_SPEC
371
 #define LINK_SPEC "-m m68kelf %{shared} \
372
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/microblaze/linux.h gcc-5.3.0-zip/gcc/config/microblaze/linux.h
373 127 dgisselq
--- gcc-5.3.0-original/gcc/config/microblaze/linux.h    2016-04-21 20:04:11.761606648 -0400
374 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/microblaze/linux.h 2015-05-28 10:08:19.000000000 -0400
375
@@ -28,7 +28,7 @@
376
 #undef TLS_NEEDS_GOT
377
 #define TLS_NEEDS_GOT 1
378
 
379
-#define DYNAMIC_LINKER "/tools/lib/ld.so.1"
380
+#define DYNAMIC_LINKER "/lib/ld.so.1"
381
 #undef  SUBTARGET_EXTRA_SPECS
382
 #define SUBTARGET_EXTRA_SPECS \
383
   { "dynamic_linker", DYNAMIC_LINKER }
384
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/mips/linux.h gcc-5.3.0-zip/gcc/config/mips/linux.h
385 127 dgisselq
--- gcc-5.3.0-original/gcc/config/mips/linux.h  2016-04-21 20:04:11.761606648 -0400
386 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/mips/linux.h       2015-01-05 07:33:28.000000000 -0500
387
@@ -22,20 +22,20 @@
388
 #define GNU_USER_LINK_EMULATIONN32 "elf32%{EB:b}%{EL:l}tsmipn32"
389
 
390
 #define GLIBC_DYNAMIC_LINKER32 \
391
-  "%{mnan=2008:/tools/lib/ld-linux-mipsn8.so.1;:/tools/lib/ld.so.1}"
392
+  "%{mnan=2008:/lib/ld-linux-mipsn8.so.1;:/lib/ld.so.1}"
393
 #define GLIBC_DYNAMIC_LINKER64 \
394
-  "%{mnan=2008:/tools/lib64/ld-linux-mipsn8.so.1;:/tools/lib64/ld.so.1}"
395
+  "%{mnan=2008:/lib64/ld-linux-mipsn8.so.1;:/lib64/ld.so.1}"
396
 #define GLIBC_DYNAMIC_LINKERN32 \
397
-  "%{mnan=2008:/tools/lib32/ld-linux-mipsn8.so.1;:/tools/lib32/ld.so.1}"
398
+  "%{mnan=2008:/lib32/ld-linux-mipsn8.so.1;:/lib32/ld.so.1}"
399
 
400
 #undef UCLIBC_DYNAMIC_LINKER32
401
 #define UCLIBC_DYNAMIC_LINKER32 \
402
-  "%{mnan=2008:/tools/lib/ld-uClibc-mipsn8.so.0;:/tools/lib/ld-uClibc.so.0}"
403
+  "%{mnan=2008:/lib/ld-uClibc-mipsn8.so.0;:/lib/ld-uClibc.so.0}"
404
 #undef UCLIBC_DYNAMIC_LINKER64
405
 #define UCLIBC_DYNAMIC_LINKER64 \
406
-  "%{mnan=2008:/tools/lib/ld64-uClibc-mipsn8.so.0;:/tools/lib/ld64-uClibc.so.0}"
407
+  "%{mnan=2008:/lib/ld64-uClibc-mipsn8.so.0;:/lib/ld64-uClibc.so.0}"
408
 #define UCLIBC_DYNAMIC_LINKERN32 \
409
-  "%{mnan=2008:/tools/lib32/ld-uClibc-mipsn8.so.0;:/tools/lib32/ld-uClibc.so.0}"
410
+  "%{mnan=2008:/lib32/ld-uClibc-mipsn8.so.0;:/lib32/ld-uClibc.so.0}"
411
 
412
 #define BIONIC_DYNAMIC_LINKERN32 "/system/bin/linker32"
413
 #define GNU_USER_DYNAMIC_LINKERN32 \
414
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/mn10300/linux.h gcc-5.3.0-zip/gcc/config/mn10300/linux.h
415 127 dgisselq
--- gcc-5.3.0-original/gcc/config/mn10300/linux.h       2016-04-21 20:04:11.761606648 -0400
416 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/mn10300/linux.h    2015-01-05 07:33:28.000000000 -0500
417
@@ -32,7 +32,7 @@
418
 #undef  ASM_SPEC
419
 #define ASM_SPEC ""
420
 
421
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld.so.1"
422
+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
423
 
424
 #undef  LINK_SPEC
425
 #define LINK_SPEC "%{mrelax:--relax} %{shared:-shared} \
426
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
427 127 dgisselq
--- gcc-5.3.0-original/gcc/config/pa/pa-linux.h 2016-04-21 20:04:11.761606648 -0400
428 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/pa/pa-linux.h      2015-09-24 20:04:26.000000000 -0400
429
@@ -37,7 +37,7 @@
430
 /* Define this for shared library support because it isn't in the main
431
    linux.h file.  */
432
 
433
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld.so.1"
434
+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
435
 
436
 #undef LINK_SPEC
437
 #define LINK_SPEC "\
438
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/rs6000/linux64.h gcc-5.3.0-zip/gcc/config/rs6000/linux64.h
439 127 dgisselq
--- gcc-5.3.0-original/gcc/config/rs6000/linux64.h      2016-04-21 20:04:11.761606648 -0400
440 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/rs6000/linux64.h   2015-03-09 19:18:57.000000000 -0400
441
@@ -357,14 +357,14 @@
442
 #undef LINK_OS_DEFAULT_SPEC
443
 #define LINK_OS_DEFAULT_SPEC "%(link_os_linux)"
444
 
445
-#define GLIBC_DYNAMIC_LINKER32 "/tools/lib/ld.so.1"
446
+#define GLIBC_DYNAMIC_LINKER32 "/lib/ld.so.1"
447
 #ifdef LINUX64_DEFAULT_ABI_ELFv2
448
-#define GLIBC_DYNAMIC_LINKER64 "%{mabi=elfv1:/tools/lib64/ld64.so.1;:/tools/lib64/ld64.so.2}"
449
+#define GLIBC_DYNAMIC_LINKER64 "%{mabi=elfv1:/lib64/ld64.so.1;:/lib64/ld64.so.2}"
450
 #else
451
-#define GLIBC_DYNAMIC_LINKER64 "%{mabi=elfv2:/tools/lib64/ld64.so.2;:/tools/lib64/ld64.so.1}"
452
+#define GLIBC_DYNAMIC_LINKER64 "%{mabi=elfv2:/lib64/ld64.so.2;:/lib64/ld64.so.1}"
453
 #endif
454
-#define UCLIBC_DYNAMIC_LINKER32 "/tools/lib/ld-uClibc.so.0"
455
-#define UCLIBC_DYNAMIC_LINKER64 "/tools/lib/ld64-uClibc.so.0"
456
+#define UCLIBC_DYNAMIC_LINKER32 "/lib/ld-uClibc.so.0"
457
+#define UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0"
458
 #if DEFAULT_LIBC == LIBC_UCLIBC
459
 #define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}"
460
 #elif DEFAULT_LIBC == LIBC_GLIBC
461
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/rs6000/sysv4.h gcc-5.3.0-zip/gcc/config/rs6000/sysv4.h
462 127 dgisselq
--- gcc-5.3.0-original/gcc/config/rs6000/sysv4.h        2016-04-21 20:04:11.761606648 -0400
463 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/rs6000/sysv4.h     2015-09-24 09:46:45.000000000 -0400
464
@@ -757,8 +757,8 @@
465
 
466
 #define LINK_START_LINUX_SPEC ""
467
 
468
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld.so.1"
469
-#define UCLIBC_DYNAMIC_LINKER "/tools/lib/ld-uClibc.so.0"
470
+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
471
+#define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
472
 #if DEFAULT_LIBC == LIBC_UCLIBC
473
 #define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}"
474
 #elif !defined (DEFAULT_LIBC) || DEFAULT_LIBC == LIBC_GLIBC
475
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/s390/linux.h gcc-5.3.0-zip/gcc/config/s390/linux.h
476 127 dgisselq
--- gcc-5.3.0-original/gcc/config/s390/linux.h  2016-04-21 20:04:11.761606648 -0400
477 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/s390/linux.h       2015-05-11 03:14:10.000000000 -0400
478
@@ -60,8 +60,8 @@
479
 #define MULTILIB_DEFAULTS { "m31" }
480
 #endif
481
 
482
-#define GLIBC_DYNAMIC_LINKER32 "/tools/lib/ld.so.1"
483
-#define GLIBC_DYNAMIC_LINKER64 "/tools/lib/ld64.so.1"
484
+#define GLIBC_DYNAMIC_LINKER32 "/lib/ld.so.1"
485
+#define GLIBC_DYNAMIC_LINKER64 "/lib/ld64.so.1"
486
 
487
 #undef  LINK_SPEC
488
 #define LINK_SPEC \
489
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/sh/linux.h gcc-5.3.0-zip/gcc/config/sh/linux.h
490 127 dgisselq
--- gcc-5.3.0-original/gcc/config/sh/linux.h    2016-04-21 20:04:11.761606648 -0400
491 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/sh/linux.h 2015-01-05 07:33:28.000000000 -0500
492
@@ -43,7 +43,7 @@
493
 
494
 #define TARGET_ASM_FILE_END file_end_indicate_exec_stack
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 SUBTARGET_LINK_EMUL_SUFFIX
500
 #define SUBTARGET_LINK_EMUL_SUFFIX "_linux"
501
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/sparc/linux64.h gcc-5.3.0-zip/gcc/config/sparc/linux64.h
502 127 dgisselq
--- gcc-5.3.0-original/gcc/config/sparc/linux64.h       2016-04-21 20:04:11.761606648 -0400
503 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/sparc/linux64.h    2015-01-05 07:33:28.000000000 -0500
504
@@ -84,8 +84,8 @@
505
    When the -shared link option is used a final link is not being
506
    done.  */
507
 
508
-#define GLIBC_DYNAMIC_LINKER32 "/tools/lib/ld-linux.so.2"
509
-#define GLIBC_DYNAMIC_LINKER64 "/tools/lib64/ld-linux.so.2"
510
+#define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"
511
+#define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux.so.2"
512
 
513
 #ifdef SPARC_BI_ARCH
514
 
515
@@ -193,7 +193,7 @@
516
 #else /* !SPARC_BI_ARCH */
517
 
518
 #undef LINK_SPEC
519
-#define LINK_SPEC "-m elf64_sparc -Y P,%R/tools/lib64 %{shared:-shared} \
520
+#define LINK_SPEC "-m elf64_sparc -Y P,%R/usr/lib64 %{shared:-shared} \
521
   %{!shared: \
522
     %{!static: \
523
       %{rdynamic:-export-dynamic} \
524
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/sparc/linux.h gcc-5.3.0-zip/gcc/config/sparc/linux.h
525 127 dgisselq
--- gcc-5.3.0-original/gcc/config/sparc/linux.h 2016-04-21 20:04:11.761606648 -0400
526 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/sparc/linux.h      2015-01-05 07:33:28.000000000 -0500
527
@@ -83,7 +83,7 @@
528
    When the -shared link option is used a final link is not being
529
    done.  */
530
 
531
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld-linux.so.2"
532
+#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
533
 
534
 #undef  LINK_SPEC
535
 #define LINK_SPEC "-m elf32_sparc %{shared:-shared} \
536
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/vax/linux.h gcc-5.3.0-zip/gcc/config/vax/linux.h
537 127 dgisselq
--- gcc-5.3.0-original/gcc/config/vax/linux.h   2016-04-21 20:04:11.761606648 -0400
538 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/vax/linux.h        2015-01-05 07:33:28.000000000 -0500
539
@@ -41,7 +41,7 @@
540
   %{!shared: \
541
     %{!static: \
542
       %{rdynamic:-export-dynamic} \
543
-      -dynamic-linker /tools/lib/ld.so.1} \
544
+      -dynamic-linker /lib/ld.so.1} \
545
     %{static:-static}}"
546
 
547
 #undef  WCHAR_TYPE
548
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/xtensa/linux.h gcc-5.3.0-zip/gcc/config/xtensa/linux.h
549 127 dgisselq
--- gcc-5.3.0-original/gcc/config/xtensa/linux.h        2016-04-21 20:04:11.761606648 -0400
550 102 dgisselq
+++ gcc-5.3.0-zip/gcc/config/xtensa/linux.h     2015-01-05 07:33:28.000000000 -0500
551
@@ -44,7 +44,7 @@
552
   %{mlongcalls:--longcalls} \
553
   %{mno-longcalls:--no-longcalls}"
554
 
555
-#define GLIBC_DYNAMIC_LINKER "/tools/lib/ld.so.1"
556
+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
557
 
558
 #undef LINK_SPEC
559
 #define LINK_SPEC \
560
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/zip/netbsd.h gcc-5.3.0-zip/gcc/config/zip/netbsd.h
561
--- gcc-5.3.0-original/gcc/config/zip/netbsd.h  1969-12-31 19:00:00.000000000 -0500
562
+++ gcc-5.3.0-zip/gcc/config/zip/netbsd.h       2016-01-30 15:04:14.796899050 -0500
563
@@ -0,0 +1,82 @@
564
+////////////////////////////////////////////////////////////////////////////////
565
+//
566
+// Filename:   netbsd.h
567
+//
568
+// Project:    Zip CPU backend for the GNU Compiler Collection
569
+//
570
+// Purpose:
571
+//
572
+// Creator:    Dan Gisselquist, Ph.D.
573
+//             Gisselquist Technology, LLC
574
+//
575
+////////////////////////////////////////////////////////////////////////////////
576
+//
577
+// Copyright (C) 2016, Gisselquist Technology, LLC
578
+//
579
+// This program is free software (firmware): you can redistribute it and/or
580
+// modify it under the terms of  the GNU General Public License as published
581
+// by the Free Software Foundation, either version 3 of the License, or (at
582
+// your option) any later version.
583
+//
584
+// This program is distributed in the hope that it will be useful, but WITHOUT
585
+// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
586
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
587
+// for more details.
588
+//
589
+// You should have received a copy of the GNU General Public License along
590
+// with this program.  (It's in the $(ROOT)/doc directory, run make with no
591
+// target there if the PDF file isn't present.)  If not, see
592
+// <http://www.gnu.org/licenses/> for a copy.
593
+//
594
+// License:    GPL, v3, as defined and found on www.gnu.org,
595
+//             http://www.gnu.org/licenses/gpl.html
596
+//
597
+//
598
+////////////////////////////////////////////////////////////////////////////////
599
+#ifndef        ZIP_NETBSD_H
600
+#define        ZIP_NETBSD_H
601
+
602
+/* Define default target values. */
603
+
604
+#undef MACHINE_TYPE
605
+#define        MACHINE_TYPE    "NetBSD/Zip ELF"
606
+
607
+#undef TARGET_OS_CPP_BUILTINS
608
+#define        TARGET_OS_CPP_BUILTINS()        \
609
+       do { NETBSD_OS_CPP_BUILTINS_ELF();              \
610
+       builtin_define("__ZIPCPU__");                   \
611
+       builtin_assert("cpu=zip");                      \
612
+       builtin_assert("machine=zip");                  \
613
+       } while(0);
614
+
615
+#undef CPP_SPEC
616
+#define        CPP_SPEC        NETBSD_CPP_SPEC
617
+
618
+#undef STARTFILE_SPEC
619
+#define        STARTFILE_SPEC  NETBSD_STARTFILE_SPEC
620
+
621
+#undef ENDFILE_SPEC
622
+#define        ENDFILE_SPEC    NETBSD_ENDFILE_SPEC
623
+
624
+#undef LIB_SPEC
625
+#define        LIB_SPEC        NETBSD_LIB_SPEC
626
+
627
+#undef TARGET_VERSION
628
+#define        TARGET_VERSION  fprintf(stderr, " (%s)", MACHINE_TYPE);
629
+
630
+/* Make gcc agree with <machine/ansi.h> */
631
+
632
+#undef WCHAR_TYPE
633
+#define        WCHAR_TYPE      "int"
634
+
635
+#undef WCHAR_TYPE_SIZE
636
+#define        WCHAR_TYPE_SIZE 32
637
+
638
+#undef WINT_TYPE
639
+#define        WINT_TYPE       "int"
640
+
641
+/* Clean up after the generic Zip/ELF configuration. */
642
+#undef MD_EXEC_PREFIX
643
+#undef MD_STARTFILE_PREFIX
644
+
645
+#endif /* ZIP_NETBSD_H */
646
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/zip/t-zip gcc-5.3.0-zip/gcc/config/zip/t-zip
647
--- gcc-5.3.0-original/gcc/config/zip/t-zip     1969-12-31 19:00:00.000000000 -0500
648
+++ gcc-5.3.0-zip/gcc/config/zip/t-zip  2016-02-04 19:00:59.939652587 -0500
649
@@ -0,0 +1,47 @@
650
+################################################################################
651
+##
652
+## Filename:   t-zip
653
+##
654
+## Project:    Zip CPU backend for the GNU Compiler Collection
655
+##
656
+## Purpose:
657
+##
658
+## Creator:    Dan Gisselquist, Ph.D.
659
+##             Gisselquist Technology, LLC
660
+##
661
+################################################################################
662
+##
663
+## Copyright (C) 2016, Gisselquist Technology, LLC
664
+##
665
+## This program is free software (firmware): you can redistribute it and/or
666
+## modify it under the terms of  the GNU General Public License as published
667
+## by the Free Software Foundation, either version 3 of the License, or (at
668
+## your option) any later version.
669
+##
670
+## This program is distributed in the hope that it will be useful, but WITHOUT
671
+## ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
672
+## FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
673
+## for more details.
674
+##
675
+## You should have received a copy of the GNU General Public License along
676
+## with this program.  (It's in the $(ROOT)/doc directory, run make with no
677
+## target there if the PDF file isn't present.)  If not, see
678
+## <http://www.gnu.org/licenses/> for a copy.
679
+##
680
+## License:    GPL, v3, as defined and found on www.gnu.org,
681
+##             http://www.gnu.org/licenses/gpl.html
682
+##
683
+##
684
+################################################################################
685
+
686
+FPBIT = fp-bit.c
687
+DPBIT = dp-bit.c
688
+
689
+# dp-bit.c: $(srcdir)/config/fp-bit.c
690
+       # cat $(srcdir)/config/fp-bit.c > dp-bit.c
691
+#
692
+# fp-bit.c: $(srcdir)/config/fp-bit.c
693
+       # echo '#define FLOAT" > fp-bit.c
694
+       # cat $(srcdir)/config/fp-bit.c >> fp-bit.c
695
+
696
+
697
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/zip/zip.c gcc-5.3.0-zip/gcc/config/zip/zip.c
698
--- gcc-5.3.0-original/gcc/config/zip/zip.c     1969-12-31 19:00:00.000000000 -0500
699 127 dgisselq
+++ gcc-5.3.0-zip/gcc/config/zip/zip.c  2016-04-21 16:52:37.544818916 -0400
700
@@ -0,0 +1,2174 @@
701 102 dgisselq
+////////////////////////////////////////////////////////////////////////////////
702
+//
703
+// Filename:   zip.c
704
+//
705
+// Project:    Zip CPU backend for the GNU Compiler Collection
706
+//
707
+// Purpose:
708
+//
709
+// Creator:    Dan Gisselquist, Ph.D.
710
+//             Gisselquist Technology, LLC
711
+//
712
+////////////////////////////////////////////////////////////////////////////////
713
+//
714
+// Copyright (C) 2016, Gisselquist Technology, LLC
715
+//
716
+// This program is free software (firmware): you can redistribute it and/or
717
+// modify it under the terms of  the GNU General Public License as published
718
+// by the Free Software Foundation, either version 3 of the License, or (at
719
+// your option) any later version.
720
+//
721
+// This program is distributed in the hope that it will be useful, but WITHOUT
722
+// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
723
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
724
+// for more details.
725
+//
726
+// You should have received a copy of the GNU General Public License along
727
+// with this program.  (It's in the $(ROOT)/doc directory, run make with no
728
+// target there if the PDF file isn't present.)  If not, see
729
+// <http://www.gnu.org/licenses/> for a copy.
730
+//
731
+// License:    GPL, v3, as defined and found on www.gnu.org,
732
+//             http://www.gnu.org/licenses/gpl.html
733
+//
734
+//
735
+////////////////////////////////////////////////////////////////////////////////
736
+#include "config.h"
737
+#include "system.h"
738
+#include "coretypes.h"
739
+#include "tm.h"
740
+#include "rtl.h"
741
+#include "dominance.h"
742
+#include "cfg.h"
743
+#include "cfgrtl.h"
744
+#include "cfganal.h"
745
+#include "lcm.h"
746
+#include "cfgbuild.h"
747
+#include "cfgcleanup.h"
748
+#include "predict.h"
749
+#include "basic-block.h"
750
+#include "df.h"
751
+#include "hashtab.h"
752
+#include "hash-set.h"
753
+#include "machmode.h"
754
+#include "symtab.h"
755
+#include "rtlhash.h"
756
+#include "tree.h"
757
+#include "regs.h"
758
+#include "hard-reg-set.h"
759
+#include "real.h"
760
+#include "insn-config.h"
761
+#include "conditions.h"
762
+#include "output.h"
763
+#include "insn-attr.h"
764
+#include "flags.h"
765
+#include "expr.h"
766
+#include "function.h"
767
+#include "recog.h"
768
+#include "toplev.h"
769
+#include "ggc.h"
770
+#include "builtins.h"
771
+#include "calls.h"
772
+#include "langhooks.h"
773
+#include "optabs.h"
774
+#include "explow.h"
775
+#include "emit-rtl.h"
776 122 dgisselq
+#include "ifcvt.h"
777 102 dgisselq
+
778
+// #include "tmp_p.h"
779
+#include "target.h"
780
+#include "target-def.h"
781
+// #include "tm-constrs.h"
782 122 dgisselq
+#include "tm-preds.h"
783 102 dgisselq
+
784
+#include "diagnostic.h"
785
+// #include "integrate.h"
786
+
787
+// static int  zip_arg_partial_bytes(CUMULATIVE_ARGS *, enum machine_mode, tree, bool);
788
+// static      bool    zip_pass_by_reference(CUMULATIVE_ARGS *, enum machine_mode, const_tree, bool);
789
+static bool    zip_return_in_memory(const_tree, const_tree);
790
+static bool    zip_frame_pointer_required(void);
791
+
792
+static void zip_function_arg_advance(cumulative_args_t ca, enum machine_mode mode,
793
+               const_tree type, bool named);
794
+static rtx zip_function_arg(cumulative_args_t ca, enum machine_mode mode, const_tree type, bool named);
795
+
796
+static void    zip_asm_trampoline_template(FILE *);
797
+static void    zip_trampoline_init(rtx, tree, rtx);
798
+static void    zip_init_builtins(void);
799
+static tree zip_builtin_decl(unsigned, bool);
800
+// static void zip_asm_output_anchor(rtx x);
801
+       void    zip_asm_output_def(FILE *s, const char *n, const char *v);
802
+static rtx     zip_expand_builtin(tree exp, rtx target, rtx subtarget,
803
+                       enum machine_mode tmode, int    ignore);
804
+static bool    zip_scalar_mode_supported_p(enum machine_mode mode);
805
+static bool    zip_libgcc_floating_mode_supported_p(enum machine_mode mode);
806
+static int     zip_address_cost(rtx addr, enum machine_mode mode, addr_space_t as, bool spd);
807
+static bool    zip_mode_dependent_address_p(const_rtx addr, addr_space_t);
808
+static unsigned HOST_WIDE_INT  zip_const_anchor = 0x20000;
809 122 dgisselq
+static          HOST_WIDE_INT  zip_min_opb_imm = -0x20000;
810
+static          HOST_WIDE_INT  zip_max_opb_imm =  0x1ffff;
811 102 dgisselq
+static          HOST_WIDE_INT  zip_min_anchor_offset = -0x20000;
812
+static          HOST_WIDE_INT  zip_max_anchor_offset =  0x1ffff;
813
+static          HOST_WIDE_INT  zip_min_mov_offset = -0x1000;
814
+static          HOST_WIDE_INT  zip_max_mov_offset =  0x0fff;
815
+static int     zip_sched_issue_rate(void) { return 1; }
816
+static bool    zip_legitimate_address_p(machine_mode, rtx, bool);
817
+static bool    zip_legitimate_move_operand_p(machine_mode, rtx, bool);
818
+       void    zip_debug_rtx_pfx(const char *, const_rtx x);
819
+       void    zip_debug_rtx(const_rtx x);
820
+static void    zip_override_options(void);
821
+static bool    zip_can_eliminate(int from ATTRIBUTE_UNUSED, int to);
822
+static int     zip_memory_move_cost(machine_mode, reg_class_t, bool);
823 111 dgisselq
+static rtx     zip_legitimize_address(rtx x, rtx oldx, machine_mode mode);
824 117 dgisselq
+static bool    zip_cannot_modify_jumps_p(void);
825 122 dgisselq
+#ifdef HAVE_cc0
826
+       void    zip_update_cc_notice(rtx exp, rtx_insn *insn);
827
+#error "We're not supposed to have CC0 anymore"
828
+#else
829
+static bool    zip_fixed_condition_code_regs(unsigned int *a, unsigned int *b);
830
+#endif
831 102 dgisselq
+
832
+
833 103 dgisselq
+#define        ALL_DEBUG_OFF   false
834 102 dgisselq
+#define        ALL_DEBUG_ON    false
835
+
836
+enum ZIP_BUILTIN_ID_CODE {
837
+       ZIP_BUILTIN_RTU,
838
+       ZIP_BUILTIN_HALT,
839
+       ZIP_BUILTIN_IDLE,
840
+       ZIP_BUILTIN_SYSCALL,
841
+       ZIP_BUILTIN_SAVE_CONTEXT,
842
+       ZIP_BUILTIN_RESTORE_CONTEXT,
843
+       ZIP_BUILTIN_BITREV,
844
+       ZIP_BUILTIN_CC,
845 117 dgisselq
+       ZIP_BUILTIN_UCC,
846 102 dgisselq
+       ZIP_BUILTIN_MAX
847
+};
848
+
849
+static GTY (()) tree   zip_builtins[(int)ZIP_BUILTIN_MAX];
850
+static enum insn_code  zip_builtins_icode[(int)ZIP_BUILTIN_MAX];
851
+
852
+
853
+#include "gt-zip.h"
854
+
855
+/* The Global 'targetm' Variable. */
856
+struct gcc_target      targetm = TARGET_INITIALIZER;
857
+
858
+
859
+enum   reg_class zip_reg_class(int);
860
+
861
+#define        LOSE_AND_RETURN(msgid, x)               \
862
+       do {                                    \
863
+               zip_operand_lossage(msgid, x);  \
864
+               return;                         \
865
+       } while(0)
866
+
867
+/* Per-function machine data. */
868
+struct GTY(()) machine_function
869
+{
870
+       /* number of pretented arguments for varargs */
871
+       int     pretend_size;
872
+
873
+       /* Number of bytes saved on the stack for local variables. */
874
+       int     local_vars_size;
875
+
876
+       /* Number of bytes saved on stack for register save area */
877
+       int     saved_reg_size;
878
+       int     save_ret;
879
+
880
+       int     sp_fp_offset;
881
+       bool    fp_needed;
882
+       int     size_for_adjusting_sp;
883
+};
884
+
885
+/* Allocate a chunk of memory for per-function machine-dependent data. */
886
+
887
+static struct machine_function *
888
+zip_init_machine_status(void) {
889
+       return ggc_cleared_alloc<machine_function>();
890
+}
891
+
892
+static void
893
+zip_override_options(void)
894
+{
895
+       init_machine_status = zip_init_machine_status;
896
+}
897
+
898
+enum   reg_class
899
+zip_reg_class(int regno)
900
+{
901
+       if (is_ZIP_GENERAL_REG(regno)) {
902
+               return GENERAL_REGS;
903
+       } else if (is_ZIP_REG(regno)) {
904
+               return ALL_REGS;
905
+       } return NO_REGS;
906
+}
907
+
908
+/* Worker function for TARGET_RETURN_IN_MEMORY. */
909
+static bool
910
+zip_return_in_memory(const_tree type, const_tree fntype ATTRIBUTE_UNUSED) {
911
+       const   HOST_WIDE_INT size = int_size_in_bytes(type);
912
+       return (size == -1)||(size > UNITS_PER_WORD);
913
+}
914
+
915
+/* Emit an error emssage when we're in an asm, and a fatal error for "normal"
916
+ * insn.  Formatted output isn't easily implemented, since we use output operand
917
+ * lossage to output the actual message and handle the categorization of the
918
+ * error.  */
919
+
920
+static void
921
+zip_operand_lossage(const char *msgid, rtx op) {
922
+       fprintf(stderr, "Operand lossage??\n");
923
+       debug_rtx(op);
924
+       zip_debug_rtx(op);
925
+       output_operand_lossage("%s", msgid);
926
+}
927
+
928
+/* The PRINT_OPERAND_ADDRESS worker.   */
929
+void
930
+zip_print_operand_address(FILE *file, rtx x) {
931
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
932
+
933
+       if (dbg) zip_debug_rtx(x);
934
+       switch(GET_CODE(x)) {
935
+               case REG:
936 127 dgisselq
+                       gcc_assert(is_ZIP_REG(REGNO(x)));
937 102 dgisselq
+                       fprintf(file, "(%s)", reg_names[REGNO(x)]);
938
+                       break;
939
+               case SYMBOL_REF:
940
+                       fprintf(file, "%s", XSTR(x,0));
941
+                       break;
942
+               case LABEL_REF:
943
+                       x = LABEL_REF_LABEL(x);
944
+               case CODE_LABEL:
945
+                       { char buf[256];
946
+                       ASM_GENERATE_INTERNAL_LABEL(buf, "L", CODE_LABEL_NUMBER(x));
947
+#ifdef ASM_OUTPUT_LABEL_REF
948
+                       ASM_OUTPUT_LABEL_REF(file, buf);
949
+#else
950
+                       assemble_name(file, buf);
951
+#endif
952
+                       }
953
+                       break;
954
+               case PLUS:
955 111 dgisselq
+                       if (!REG_P(XEXP(x, 0))) {
956
+                               fprintf(stderr, "Unsupported address construct\n");
957
+                               zip_debug_rtx(x);
958 102 dgisselq
+                               abort();
959 127 dgisselq
+                       } gcc_assert(is_ZIP_REG(REGNO(XEXP(x,0))));
960
+                       if (CONST_INT_P(XEXP(x, 1))) {
961 102 dgisselq
+                               if (INTVAL(XEXP(x,1))!=0) {
962
+                                       fprintf(file, "%ld(%s)",
963
+                                       INTVAL(XEXP(x, 1)),
964
+                                       reg_names[REGNO(XEXP(x, 0))]);
965
+                               } else {
966
+                                       fprintf(file, "(%s)",
967
+                                       reg_names[REGNO(XEXP(x, 0))]);
968
+                               }
969
+                       } else if (GET_CODE(XEXP(x,1)) == SYMBOL_REF) {
970
+                               fprintf(file, "%s(%s)", XSTR(x,0),
971
+                                       reg_names[REGNO(XEXP(x, 0))]);
972
+                       } else if ((GET_CODE(XEXP(x, 1)) == MINUS)
973
+                               && (GET_CODE(XEXP(XEXP(x, 1), 0))==SYMBOL_REF)
974
+                               && (GET_CODE(XEXP(XEXP(x, 1), 1))==SYMBOL_REF)) {
975
+                               fprintf(file, "%s-%s(%s)",
976
+                                       XSTR(XEXP(XEXP(x, 1),0),0),
977
+                                       XSTR(XEXP(XEXP(x, 1),1),0),
978
+                                       reg_names[REGNO(XEXP(x, 0))]);
979
+                       } else
980
+                               fprintf(file, "#INVALID(%s)",
981
+                                       reg_names[REGNO(XEXP(x, 0))]);
982
+                       /*
983
+                       else if (GET_CODE(XEXP(addr, 1)) == LABEL)
984
+                               fprintf(file, "%s(%s)",
985
+                                       GET_CODE(XEXP(addr, 1)),
986
+                                       reg_names[REGNO(GET_CODE(XEXP(addr, 0)))]);
987
+                       else if ((GET_CODE(XEXP(addr, 1)) == MINUS)
988
+                               && (GET_CODE(XEXP(GET_CODE(XEXP(addr, 1)), 0))==LABEL)
989
+                               && (GET_CODE(XEXP(GET_CODE(XEXP(addr, 1)), 1))==LABEL)) {
990
+                               fprintf(file, "%s-%s(%s)",
991
+                                       reg_names[REGNO(GET_CODE(XEXP(addr, 0)))]);
992
+                                       reg_names[REGNO(GET_CODE(XEXP(addr, 0)))]);
993
+                                       reg_names[REGNO(GET_CODE(XEXP(addr, 0)))]);
994
+                       }
995
+                       */
996
+                       break;
997
+               // We don't support direct memory addressing within our
998
+               // instruction set, even though the instructions themselves
999
+               // would support direct memory addressing of the lower 18 bits
1000
+               // of memory space.
1001
+               case MEM:
1002
+                       if (dbg) zip_debug_rtx(x);
1003
+                       zip_print_operand_address(file, XEXP(x, 0));
1004
+                       break;
1005 111 dgisselq
+               case CONST_INT:
1006
+                       fprintf(file, "%ld",INTVAL(x));
1007
+                       break;
1008 102 dgisselq
+               default:
1009 111 dgisselq
+                       fprintf(stderr, "Unknown address format\n");
1010
+                       zip_debug_rtx(x);
1011 102 dgisselq
+                       abort(); break;
1012
+                       // output_addr_const(file, x);
1013
+               break;
1014
+       }
1015
+}
1016
+
1017
+/* The PRINT_OPERAND worker. */
1018
+
1019
+void
1020
+zip_print_operand(FILE *file, rtx x, int code)
1021
+{
1022
+       rtx operand = x;
1023
+       int     rgoff = 0;
1024
+
1025
+       // fprintf(file, "Print Operand!\n");
1026
+
1027
+       /* New code entries should just be added to the switch below.  If
1028
+        * handling is finished, just return.  If handling was just a
1029
+        * modification of the operand, the modified operand should be put in
1030
+        * "operand", and then do a break to let default handling
1031
+        * (zero-modifier) output the operand.
1032
+        */
1033
+       switch(code) {
1034
+               case 0:
1035
+                       /* No code, print as usual. */
1036
+                       break;
1037
+               case 'L':
1038
+                       /* Lower of two registers, print one up */
1039
+                       rgoff = 1;
1040
+                       break;
1041
+               case 'R':
1042
+               case 'H':
1043
+                       /* Higher of a register pair, print normal */
1044
+                       break;
1045
+
1046
+               default:
1047
+                       LOSE_AND_RETURN("invalid operand modifier letter", x);
1048
+       }
1049
+
1050
+       /* Print an operand as without a modifier letter. */
1051
+       switch (GET_CODE(operand)) {
1052
+       case REG:
1053
+               if (REGNO(operand)+rgoff >= FIRST_PSEUDO_REGISTER)
1054
+                       internal_error("internal error: bad register: %d", REGNO(operand));
1055
+               fprintf(file, "%s", reg_names[REGNO(operand)+rgoff]);
1056
+               return;
1057
+       case SCRATCH:
1058
+               LOSE_AND_RETURN("Need a scratch register", x);
1059
+               return;
1060
+
1061
+       case CODE_LABEL:
1062
+       case LABEL_REF:
1063
+       case SYMBOL_REF:
1064
+       case PLUS:
1065
+               PRINT_OPERAND_ADDRESS(file, operand);
1066
+               return;
1067
+       case MEM:
1068
+               PRINT_OPERAND_ADDRESS(file, XEXP(operand, 0));
1069
+               return;
1070
+
1071
+       default:
1072
+               /* No need to handle all strange variants, let
1073
+                * output_addr_const do it for us.
1074
+                */
1075
+               if (CONSTANT_P(operand)) {
1076
+                       output_addr_const(file, operand);
1077
+                       return;
1078
+               }
1079
+
1080
+               LOSE_AND_RETURN("unexpected operand", x);
1081
+       }
1082
+}
1083
+
1084
+static bool
1085
+zip_frame_pointer_required(void)
1086
+{
1087
+       // This should really depend upon whether we have variable sized
1088
+       // arguments in our frame or not.  Once this fails, let's look
1089
+       // at what the problem was and then whether or not we can detect
1090
+       // it.
1091
+       //
1092
+       // Use a GCC global to determine our answer
1093 103 dgisselq
+       if (cfun->calls_alloca)
1094
+               return true;
1095 102 dgisselq
+       return (frame_pointer_needed);
1096
+/*
1097
+*/
1098
+}
1099
+
1100
+/* Determine whether or not a register needs to be saved on the stack or not.
1101
+ */
1102
+static bool
1103
+zip_save_reg(int regno) {
1104
+       if (regno == 0)
1105
+               return ((!crtl->is_leaf)
1106
+                       ||((df_regs_ever_live_p(0))&&(!call_used_regs[0])));
1107
+       else if ((regno == zip_GOT)&&(!ZIP_PIC))
1108
+               return  ((df_regs_ever_live_p(regno))
1109
+                               &&(!call_used_regs[regno]));
1110
+       else if (regno == zip_FP)
1111
+               return((zip_frame_pointer_required())||((df_regs_ever_live_p(regno))
1112
+                               &&(!call_used_regs[regno])));
1113
+       else if (regno < zip_FP)
1114
+               return  ((df_regs_ever_live_p(regno))
1115
+                               &&(!call_used_regs[regno]));
1116
+       return false;
1117
+}
1118
+
1119
+/* Compute the size of the local area and the size to be adjusted by the
1120
+ * prologue and epilogue.
1121
+ *
1122
+ * Here's what we are looking at (top is the current, bottom is the last ...)
1123
+ *
1124
+ *     Stack Pointer ->
1125 124 dgisselq
+ *                     Outgoing arguments
1126 102 dgisselq
+ *                     Local variables (could be variable size)
1127
+ *     Frame Pointer ->        (= Stack Pointer + sp_fp_offset)
1128
+ *                     Saved return address, if saved
1129
+ *                     Other Saved registers
1130
+ *                     Saved frame pointer (if used)
1131
+ *                     Saved R12, if used
1132
+ *                     (Stack pointer is not saved)
1133
+ *     Original stack pointer ->       (= Stack_Pointer +size_for_adjusting_sp)
1134
+ *                     Called arguments (not passed in registers)
1135
+ *                     Return arguments (not R1, args.pretend_args_size)
1136
+ *             (Prior function's stack frame ... )
1137
+ *
1138
+ */
1139
+static void
1140
+zip_compute_frame(void) {
1141
+       int     regno;
1142
+       int     args_size;
1143 124 dgisselq
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
1144 102 dgisselq
+
1145 124 dgisselq
+       if (dbg) fprintf(stderr, "ZIP-COMPUTE-FRAME\n");
1146 102 dgisselq
+       // gcc_assert(crtl);
1147
+       gcc_assert(cfun);
1148
+       gcc_assert(cfun->machine);
1149
+
1150
+       args_size=(ACCUMULATE_OUTGOING_ARGS ? crtl->outgoing_args_size : 0);
1151
+
1152
+       if(crtl->args.pretend_args_size > 0) {
1153
+               args_size += crtl->args.pretend_args_size;
1154
+               // printf("%s pretend_args_size : %d\n", current_function_name(),
1155
+                       // crtl->args.pretend_args_size);
1156
+               cfun->machine->pretend_size = crtl->args.pretend_args_size;
1157
+       }
1158
+
1159
+       cfun->machine->local_vars_size = get_frame_size();
1160
+
1161
+       // Save callee-saved registers.
1162
+       cfun->machine->saved_reg_size = 0;
1163
+       for(regno=0; regno < FIRST_PSEUDO_REGISTER; regno++) {
1164
+               if (zip_save_reg(regno))
1165
+                       cfun->machine->saved_reg_size ++;
1166
+       }
1167
+
1168
+       cfun->machine->fp_needed = (zip_frame_pointer_required());
1169
+
1170
+       if ((cfun->machine->fp_needed)&&
1171
+                       (!df_regs_ever_live_p(zip_FP))) {
1172
+               cfun->machine->saved_reg_size ++;
1173
+       }
1174
+
1175
+       cfun->machine->sp_fp_offset = args_size + cfun->machine->local_vars_size;
1176
+       cfun->machine->size_for_adjusting_sp = cfun->machine->local_vars_size
1177
+                       + cfun->machine->saved_reg_size
1178
+                       + args_size;
1179 124 dgisselq
+       if(dbg) {
1180
+               fprintf(stderr, "\tFRAME-POINTR: %s\n",
1181
+                       cfun->machine->fp_needed?"Yes":"No");
1182
+               fprintf(stderr, "\tARGS-SIZE   : %d\n",
1183
+                       args_size);
1184
+               fprintf(stderr, "\tLOCALS-SIZE : %d\n",
1185
+                       cfun->machine->local_vars_size);
1186
+               fprintf(stderr, "\tREGISTERS   : %d\n",
1187
+                       cfun->machine->saved_reg_size);
1188
+               fprintf(stderr, "\tSP_FP_OFFSET: %d\n",
1189
+                       cfun->machine->sp_fp_offset);
1190
+               fprintf(stderr, "\tSP-ADJUSTMNT: %d\n",
1191
+                       cfun->machine->size_for_adjusting_sp);
1192
+       }
1193 102 dgisselq
+}
1194
+
1195
+void
1196
+zip_expand_prologue(void) {
1197
+       rtx     insn;
1198
+
1199
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
1200
+       zip_compute_frame();
1201
+
1202 124 dgisselq
+       if (dbg)  fprintf(stderr, "PROLOGUE: Computing Prologue instructions\n");
1203 127 dgisselq
+       if (dbg)  fprintf(stderr, "PROLOGUE: SP-FP offset is %d\n",
1204
+                       cfun->machine->sp_fp_offset);
1205 102 dgisselq
+       if (cfun->machine->size_for_adjusting_sp != 0) {
1206
+               insn = emit_insn(gen_subsi3(stack_pointer_rtx,
1207
+                               stack_pointer_rtx,
1208
+                       gen_int_mode(cfun->machine->size_for_adjusting_sp,
1209
+                               SImode)));
1210
+                       // cfun->machine->sp_fp_offset
1211
+
1212
+               RTX_FRAME_RELATED_P(insn) = 1;
1213
+       }
1214
+
1215
+       {
1216
+               int offset = 0, regno;
1217
+               for(regno=0; regno < FIRST_PSEUDO_REGISTER; regno++) {
1218
+                       if (zip_save_reg(regno)) {
1219 127 dgisselq
+                               if (dbg) fprintf(stderr,
1220
+                                       "PROLOGUE: Saving R%d in %d+%d(SP)\n",
1221
+                                       regno, cfun->machine->sp_fp_offset,
1222
+                                       offset);
1223 124 dgisselq
+                               insn=emit_insn(gen_movsi_sto_off(
1224
+                                       stack_pointer_rtx,
1225
+                                       GEN_INT(cfun->machine->sp_fp_offset
1226
+                                               +offset++),
1227 102 dgisselq
+                                       gen_rtx_REG(SImode, regno)));
1228
+                               RTX_FRAME_RELATED_P(insn) = 1;
1229
+                       }
1230
+               }
1231 103 dgisselq
+               if (dbg)  fprintf(stderr, "%d registers saved%s\n", offset,
1232
+                       (crtl->saves_all_registers)?", should be all of them":", less than all");
1233 102 dgisselq
+       }
1234
+
1235
+       if (cfun->machine->fp_needed) {
1236
+               if (dbg) zip_debug_rtx(stack_pointer_rtx);
1237
+               if (dbg) zip_debug_rtx(frame_pointer_rtx);
1238
+               insn = emit_insn(gen_movsi_reg_off(frame_pointer_rtx,
1239 124 dgisselq
+                               stack_pointer_rtx,
1240
+                               GEN_INT(cfun->machine->sp_fp_offset)));
1241 102 dgisselq
+               RTX_FRAME_RELATED_P(insn) = 1;
1242 103 dgisselq
+               if (dbg)  fprintf(stderr, "sp_fp_offset is %d\n", cfun->machine->sp_fp_offset);
1243 102 dgisselq
+       }
1244
+}
1245
+
1246
+bool
1247
+zip_use_return_insn(void)
1248
+{
1249
+       if ((!reload_completed)||(cfun->machine->fp_needed)
1250
+                       ||(get_frame_size()!=0)) {
1251
+               // If R0 ever gets pushed to the stack, then we cannot
1252
+               // use a master return from anywhere.  We need to clean up the
1253
+               // stack first.
1254
+               if ((!crtl->is_leaf)||((df_regs_ever_live_p(0))
1255
+                                               &&(!call_used_regs[0]))) {
1256
+                       return false;
1257
+               }
1258
+       }
1259
+       zip_compute_frame();
1260
+       return (cfun->machine->size_for_adjusting_sp == 0);
1261
+}
1262
+
1263
+/* As per the notes in M68k.c, quote the function epilogue should not depend
1264
+ * upon the current stack pointer.  It should use the frame poitner only,
1265
+ * if there is a frame pointer.  This is mandatory because of alloca; we also
1266
+ * take advantage of it to omit stack adjustments before returning ...
1267
+ *
1268
+ * Let's see if we can use their approach here.
1269
+ *
1270
+ * We can't.  Consider our choices:
1271
+ *     LOD (FP),R0
1272
+ *     LOD 1(FP),R4
1273
+ *     LOD 2(FP),R5
1274
+ *     LOD 3(FP),R6
1275
+ *     LOD 4(FP),FP
1276
+ *     ... Then what is the stack pointer?
1277
+ * or
1278
+ *     LOD (FP),R0
1279
+ *     LOD 1(FP),R4
1280
+ *     LOD 2(FP),R5
1281
+ *     LOD 3(FP),R6
1282
+ *     MOV FP,SP
1283
+ *     LOD 4(SP),FP
1284
+ *     ... Which suffers unnecessary pipeline stalls, and certainly doesn't
1285
+ *     exploit our pipeline memory function
1286
+ * or
1287
+ *     MOV FP,SP
1288
+ *     LOD (SP),R0
1289
+ *     LOD 1(SP),R4
1290
+ *     LOD 2(SP),R5
1291
+ *     LOD 3(SP),R6
1292
+ *     LOD 4(SP),FP
1293
+ * Which will be our choice.  Note that we do use the stack pointer, eventually.
1294
+ *
1295
+ */
1296
+void
1297
+zip_expand_epilogue(void) {
1298
+       int     regno, offset;
1299
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
1300
+
1301
+       zip_compute_frame();
1302
+
1303
+       if (dbg) fprintf(stderr, "EPILOG::\n");
1304
+       if (cfun->machine->fp_needed) {
1305 124 dgisselq
+               // This is done special--if you can't trust the stack pointer
1306
+               // enough so that you must have a frame pointer, then you can't
1307
+               // trust its offset enough to restore from it.  Hence, we start
1308
+               // by moving the frame pointer to the stack pointer to recover
1309
+               // the stack pointer back to a usable value.
1310 102 dgisselq
+               if (dbg) fprintf(stderr, "EPILOG::Moving frame pointer to stack register\n");
1311
+               emit_insn(gen_movsi_reg(stack_pointer_rtx, frame_pointer_rtx));
1312
+       }
1313
+
1314
+       if (cfun->machine->saved_reg_size != 0) {
1315 124 dgisselq
+               if (cfun->machine->fp_needed)
1316
+                       offset = 0;
1317
+               else
1318
+                       offset = cfun->machine->sp_fp_offset;
1319 102 dgisselq
+               if (dbg) fprintf(stderr, "EPILOG::Saved_REG_Size = %d\n", cfun->machine->saved_reg_size);
1320
+               for(regno=0; regno < FIRST_PSEUDO_REGISTER; regno++) {
1321
+                       if (zip_save_reg(regno)) {
1322
+                               if (dbg) fprintf(stderr, "EPILOG::RESTORING R%d\n", regno);
1323 124 dgisselq
+                               emit_insn(gen_movsi_lod_off(
1324 102 dgisselq
+                                               gen_rtx_REG(SImode, regno),
1325 124 dgisselq
+                                               stack_pointer_rtx,
1326
+                                               GEN_INT(offset++)));
1327 102 dgisselq
+                       }
1328
+               }
1329
+       }
1330
+
1331 124 dgisselq
+       if (cfun->machine->fp_needed) {
1332
+               // Restore the stack pointer back to the original, the
1333
+               // difference being the difference from the frame pointer
1334
+               // to the original stack
1335
+               emit_insn(gen_addsi3(stack_pointer_rtx, stack_pointer_rtx,
1336
+                       GEN_INT(cfun->machine->size_for_adjusting_sp
1337
+                               -cfun->machine->sp_fp_offset)));
1338
+       } else {
1339
+               // else now the difference is between the stack pointer and
1340
+               // the original stack pointer.
1341 102 dgisselq
+               if (dbg) fprintf(stderr, "EPILOG::ADDSI3(StackPtr, %d)\n",
1342
+                               cfun->machine->size_for_adjusting_sp);
1343
+               emit_insn(gen_addsi3(stack_pointer_rtx, stack_pointer_rtx,
1344 124 dgisselq
+                       GEN_INT(cfun->machine->size_for_adjusting_sp)));
1345 102 dgisselq
+       }
1346
+       if (dbg) fprintf(stderr, "EPILOG::EMITTING-RETURN\n");
1347
+
1348
+       emit_jump_insn(ret_rtx);
1349
+}
1350
+
1351
+/* Implement RETURN_ADDR_RTX(COUNT, FRAMEADDR).
1352
+ *
1353
+ * We currently only support calculating the return address for the current
1354
+ * frame.
1355
+ */
1356
+
1357
+/*
1358
+rtx
1359
+zip_return_addr_rtx(int count, rtx frame ATTRIBUTE_UNUSED)
1360
+{
1361
+       if (count)
1362
+               return NULL_RTX;
1363
+
1364
+       zip_compute_frame();
1365
+
1366
+       // saved return address for current function is at fp - 1
1367
+       if (cfun->machine->save_ret)
1368
+               return gen_rtx_MEM(Pmode, plus_constant(frame_pointer_rtx,
1369
+                               -UNITS_PER_WORD));
1370
+       return get_hard_reg_initial_val(Pmode, RETURN_ADDRESS_REGNUM);
1371
+}
1372
+*/
1373
+
1374
+/* Implements the macro INITIAL_ELIMINATION_OFFSET,
1375
+ * return the OFFSET.
1376
+ */
1377
+int
1378
+zip_initial_elimination_offset(int from, int to) {
1379
+       int     ret = 0;
1380
+       zip_compute_frame();
1381
+
1382
+       if (((from) == FRAME_POINTER_REGNUM)&&((to) == STACK_POINTER_REGNUM)) {
1383
+               ret = cfun->machine->sp_fp_offset;
1384 117 dgisselq
+       } else if (((from)=ARG_POINTER_REGNUM)&&((to)==STACK_POINTER_REGNUM)) {
1385
+               ret = cfun->machine->sp_fp_offset;
1386 102 dgisselq
+       } else if (((from)=ARG_POINTER_REGNUM)&&((to)==FRAME_POINTER_REGNUM)) {
1387 117 dgisselq
+               // ret = cfun->machine->local_vars_size;
1388
+               ret = 0;
1389 102 dgisselq
+       } else {
1390
+               abort();
1391
+       }
1392
+
1393
+       return ret;
1394
+}
1395
+
1396
+/*
1397
+ * Code taken from m68k ...
1398
+ */
1399
+static bool
1400
+zip_can_eliminate(int from, int to)
1401
+{
1402
+       // fprintf(stderr, "CAN_ELIMINATE::QUERYING(%d,%d)\n", from, to);
1403
+       if ((from == zip_FP)&&(to == zip_SP))
1404
+               return !cfun->machine->fp_needed;
1405
+       return true;
1406
+}
1407
+
1408
+/*
1409
+static void
1410
+zip_basic_check(void)
1411
+{
1412
+       gcc_assert(mode_base_align[SImode]==4);
1413
+       if ((BITS_PER_UNIT != 32)
1414
+                       ||(GET_MODE_SIZE(SImode)!=1)
1415
+                       ||(GET_MODE_SIZE(DImode)!=1)
1416
+                       ||(HARD_REGNO_NREGS(0,SImode)!=1)) {
1417
+               printf("SIZEOF(SIMode) == %d\n", GET_MODE_SIZE(SImode));
1418
+               printf("BITS_PER_UNIT  == %d\n", BITS_PER_UNIT);
1419
+               gcc_assert(BITS_PER_UNIT==32);
1420
+               gcc_assert(GET_MODE_SIZE(SImode)==1);
1421
+               gcc_assert(HARD_REGNO_NREGS(0,SImode)==1);
1422
+       }
1423
+}
1424
+*/
1425
+
1426
+#define        zip_basic_check()
1427
+
1428
+/* Compute the number of word sized regiters needed to hold a function
1429
+ * argument of mode INT_MODE and tree type TYPE.
1430
+ */
1431
+int
1432
+zip_num_arg_regs(enum machine_mode mode, const_tree type) {
1433
+       int     size;
1434
+
1435
+       zip_basic_check();
1436
+
1437
+       if (targetm.calls.must_pass_in_stack(mode, type))
1438
+               return 0;
1439
+
1440
+       if ((type)&&(mode == BLKmode))
1441
+               size = int_size_in_bytes(type);
1442
+       else
1443
+               size = GET_MODE_SIZE(mode);
1444
+
1445
+       return (size + UNITS_PER_WORD - 1)/UNITS_PER_WORD;
1446
+}
1447
+
1448
+/* pushed in function prologue */
1449
+/*
1450
+static int
1451
+zip_arg_partial_bytes(CUMULATIVE_ARGS *cum, enum machine_mode mode,
1452
+               tree type, bool name ATTRIBUTE_UNUSED) {
1453
+       int     words;
1454
+       unsigned int    regs = zip_num_arg_regs(mode, type);
1455
+
1456
+       if (*cum >= ZIP_LAST_ARG_REGNO + 1)
1457
+               words = 0;
1458
+       else if ((*cum + regs) > ZIP_LAST_ARG_REGNO + 1)
1459
+               words = (*cum + regs) - ZIP_LAST_ARG_REGNO + 1;
1460
+       else
1461
+               words = 0;
1462
+
1463
+       return words * UNITS_PER_WORD;
1464
+}
1465
+*/
1466
+
1467
+static void
1468
+zip_function_arg_advance(cumulative_args_t ca, machine_mode mode,
1469
+               const_tree type, bool named ATTRIBUTE_UNUSED) {
1470
+       CUMULATIVE_ARGS *cum;
1471
+       int     nreg;
1472
+
1473
+       zip_basic_check();
1474
+
1475
+       cum = get_cumulative_args(ca);
1476
+       nreg = zip_num_arg_regs(mode, type);
1477
+       if (((*cum)+nreg) > NUM_ARG_REGS)
1478
+               (*cum) = NUM_ARG_REGS;
1479
+       else
1480
+               (*cum) += nreg;
1481
+}
1482
+
1483
+static rtx
1484
+zip_function_arg(cumulative_args_t ca, machine_mode mode,
1485
+               const_tree type ATTRIBUTE_UNUSED, bool named) {
1486
+       CUMULATIVE_ARGS *cum;
1487
+
1488
+       zip_basic_check();
1489
+
1490
+
1491
+       if (!named)
1492
+               return NULL_RTX;
1493
+       //if (targetm.calls.must_pass_in_stack(mode, type))
1494
+               //return NULL_RTX;
1495
+       cum = get_cumulative_args(ca);
1496
+
1497
+       if ((*cum) >= NUM_ARG_REGS)
1498
+               return NULL_RTX;
1499
+       return
1500
+               gen_rtx_REG(mode, (*cum)+1);
1501
+}
1502
+
1503 122 dgisselq
+#ifdef HAVE_cc0
1504 102 dgisselq
+/* NOTICE_UPDATE_CC sends us here
1505
+ */
1506
+void
1507
+zip_update_cc_notice(rtx exp, rtx_insn *insn)
1508
+{
1509 122 dgisselq
+#error "The CC0 code was supposed to be removed"
1510 102 dgisselq
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
1511
+       enum    attr_ccresult  ccr;
1512
+       enum    attr_conditional  conditionally_executed;
1513
+
1514
+       // The default is that nothing has changed.
1515
+       // cc_status = cc_status_prev;
1516
+       rtx     src, dest;
1517
+
1518
+       if (dbg) fprintf(stderr, "CC-NOTICE ...\n");
1519
+       if (dbg) zip_debug_rtx_pfx("CC :", exp);
1520
+       if (dbg) debug_rtx(exp);
1521
+
1522
+       ccr = get_attr_ccresult(insn);
1523
+       if (ccr == CCRESULT_UNKNOWN) {
1524
+               CC_STATUS_INIT;
1525
+               if (dbg) fprintf(stderr, "\tINIT-CC\n");
1526
+               return;
1527
+       }
1528
+
1529
+       if ((GET_CODE(exp) == PARALLEL)&&(GET_CODE(XVECEXP(exp, 0, 0))==SET)) {
1530
+               // This works up and until we add cc0 parallel instructions
1531
+               // to our instruction set.
1532
+               dest = SET_DEST(XVECEXP(exp, 0, 0));
1533
+               src  = SET_SRC (XVECEXP(exp, 0, 0));
1534
+       } else if (GET_CODE(exp) == SET) {
1535
+               dest = SET_DEST(exp);
1536
+               src  = SET_SRC (exp);
1537
+       } else {
1538
+               // First, do nothing if we haven't touched the condition codes.
1539
+               // Condition codes can only be changed as a result of a set
1540
+               // expression ...?
1541
+               if (dbg) fprintf(stderr, "Non-set expression, doesn\'t touch condition codes\n");
1542
+               return;
1543
+       }
1544
+
1545 111 dgisselq
+
1546
+       if (ccr == CCRESULT_UNCHANGED) {
1547
+               if (dbg) fprintf(stderr, "\tUnchanged CC\n");
1548
+
1549
+               // We can't just run away here ... even though the CC result
1550
+               // hasn't changed, GCC's ability to recognize it as a valid
1551
+               // result has changed.  In other words, if we just 'set' a
1552
+               // value contained within either value1 or value2, then we'll
1553
+               // need to update those values so that they are no longer looked
1554
+               // upon as potentially containing the current CC values.
1555
+
1556
+               if (dest) {
1557
+                       if (dest == cc0_rtx)
1558
+                               CC_STATUS_INIT;
1559
+                       else if ((REG_P(dest))&&(dest != pc_rtx)) {
1560
+                               // An example here might be a load instruction
1561
+                               if (reg_mentioned_p(dest, cc_status.value1))
1562
+                                       cc_status.value1 = NULL_RTX;
1563
+                               if (reg_mentioned_p(dest, cc_status.value2))
1564
+                                       cc_status.value2 = NULL_RTX;
1565
+                       }
1566
+               }
1567
+               return;
1568
+       }
1569
+
1570 102 dgisselq
+       // Gotta wait on this test, until we know whether or not the
1571
+       // conditionally executed instruction was designed to set the
1572
+       // CC0 register.
1573
+       conditionally_executed = get_attr_conditional(insn);
1574
+       if ((conditionally_executed == CONDITIONAL_YES)&&(dest != cc0_rtx)) {
1575
+               // cc_status is unchanged
1576 111 dgisselq
+               // However, GCC's vision of it may have changed
1577
+               //
1578
+               // Initialize CC_STATUS
1579 102 dgisselq
+               if (dbg) fprintf(stderr, "\tCC -- unchanged (conditional exec)\n");
1580 111 dgisselq
+               CC_STATUS_INIT;
1581 102 dgisselq
+               return;
1582 111 dgisselq
+       } else if (GET_CODE(src)==IF_THEN_ELSE) {
1583
+               // Same thing as above
1584
+               CC_STATUS_INIT;
1585
+               return;
1586 102 dgisselq
+       }
1587
+
1588
+       if (ccr == CCRESULT_VALIDZN)
1589
+               cc_status.flags = CC_NO_OVERFLOW;
1590
+       else
1591
+               cc_status.flags = 0;
1592
+       cc_status.value1 = dest;
1593
+       if (dest == cc0_rtx)
1594
+               cc_status.value2 = src;
1595
+       else if((REG_P(dest))&&(!reg_mentioned_p(dest, src)))
1596
+               cc_status.value2 = src;
1597
+       else if((SUBREG_P(dest))&&(!reg_mentioned_p(XEXP(dest,0), src)))
1598
+               cc_status.value2 = src;
1599
+       else
1600
+               cc_status.value2 = 0;
1601
+       if (dbg) fprintf(stderr, "\tCC -- Set flags for\n");
1602
+       if (dbg) zip_debug_rtx_pfx("V1: ", dest);
1603
+       if ((dbg)&&(cc_status.value2)) zip_debug_rtx_pfx("V2: ", src);
1604
+       else if (dbg)   fprintf(stderr, "V2: (No SRC)\n");
1605
+       if ((dbg)&&(REG_P(dest))) fprintf(stderr, "src refers to dest ?? %s\n",
1606
+               refers_to_regno_p(REGNO(dest),REGNO(dest),src,NULL)?"Yes":"No");
1607
+       if ((dbg)&&(REG_P(dest))) fprintf(stderr, "Occurrs %d times\n",
1608
+               count_occurrences(dest,src,0));
1609
+       if ((dbg)&&(REG_P(dest))) fprintf(stderr, "%s mentioned\n",
1610
+               reg_mentioned_p(dest,src)?"Is":"Is not");
1611
+       if ((dbg)&&(REG_P(dest))) fprintf(stderr, "%s referenced\n",
1612
+               reg_referenced_p(dest,src)?"Is":"Is not");
1613
+
1614
+//
1615
+// These results are only used in final.c, where they are used to remove
1616
+// compare instructions if the optimizer is on.  If I produce nothing, no
1617
+// compare instructions will be removed.  If I produce something, a smart
1618
+// decision may be made to remove compare instructions.
1619
+//
1620
+// cc_status will be compared  with subsequent
1621
+//     (set (cc0) (something)) (i.e. compare only) instructions
1622
+//
1623
+//     (set (cc0) (compare (x) (y)))
1624
+//     dst = cc0 -- the destination of the set is ignored, save that it must be
1625
+//             cc0
1626
+//     src1 = (compare (x) (y))
1627
+//     if (src1 == compare)&&(y == (const_int 0))
1628
+//             src2 = (x)
1629
+//     else
1630
+//             src2 = null
1631
+//
1632
+//     Four conditions:
1633
+//     1. if (val1)&&(src1 == val1)
1634
+//             This would be true if I had seen a (set (val1) (src1)) insn
1635
+//             If I have seen a (set (val1) (src1))
1636
+//                     or equivalently a (set (val1) (compare (x) (y)))
1637
+//     or
1638
+//     2. if (val2)&&(src1 == val2)
1639
+//             This would be true if I had seen a (set (val1) (src1)) insn,
1640
+//             and only if val2 was still valid.
1641
+//     or
1642
+//     3. if (src2)&&(value1)&&(src2 == value1)
1643
+//             This would be true if we are comparing against zero, and the
1644
+//             number we are comparing against zero is value 1
1645
+//     or
1646
+//     4. if (src2)&&(value2)&&(src2 == value2)
1647
+//             ... or value2.  This is the common ZipCPU case.
1648
+//
1649
+//             then delete the compare.
1650
+//
1651
+}
1652 122 dgisselq
+#else
1653 102 dgisselq
+
1654 122 dgisselq
+void   zip_canonicalize_comparison(int *code, rtx *op0, rtx *op1,
1655
+               bool preserve_op0)
1656
+{
1657
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
1658 102 dgisselq
+
1659 122 dgisselq
+       if (dbg) fprintf(stderr, "CANONICALIZE ...%s\n", (preserve_op0)?"(Preserve Op0)":"");
1660
+       if (dbg) zip_debug_rtx_pfx("CODE", gen_rtx_fmt_ee((rtx_code)*code, VOIDmode, gen_rtx_REG(CCmode,zip_CC), const0_rtx));
1661
+       if (dbg) zip_debug_rtx_pfx("OP0 ", *op0);
1662
+       if (dbg) zip_debug_rtx_pfx("OP1 ", *op1);
1663
+
1664
+       if ((!preserve_op0)&&((*code == LE)||(*code == GTU)||(*code == GEU))) {
1665
+               rtx tem = *op0;
1666
+               *op0 = *op1;
1667
+               *op1 = tem;
1668
+               *code = (int)swap_condition((enum rtx_code)*code);
1669
+       }
1670
+
1671
+       if ((*code == LE)||(*code == LEU)||(*code == GTU)) {
1672
+               int offset = 1; // (*code == GTU) ? 1 : -1;
1673
+               bool    swap = false;
1674
+
1675
+               if (CONST_INT_P(*op1)) {
1676
+                       *op1 = GEN_INT(INTVAL(*op1)+offset);
1677
+                       swap = true;
1678
+               } else if (REG_P(*op1)) {
1679
+                       *op1 = plus_constant(SImode, *op1, offset, true);
1680
+                       swap = true;
1681
+               } else if ((GET_CODE(*op1)==PLUS)&&(CONST_INT_P(XEXP(*op1,1)))){
1682
+                       *op1 = plus_constant(GET_MODE(*op1),XEXP(*op1,0),
1683
+                               INTVAL(XEXP(*op1,1))+offset);
1684
+                       swap = true;
1685
+               } if (swap) {
1686
+                       if (*code == LE)
1687
+                               (*code)= LT;
1688
+                       else if (*code == LEU)
1689
+                               (*code)= LTU;
1690
+                       else // (*code == GTU)
1691
+                               (*code) = GEU;
1692
+               }
1693
+       }
1694
+}
1695
+
1696
+static bool
1697
+zip_fixed_condition_code_regs(unsigned int *a, unsigned int *b) {
1698
+       *a = zip_CC;
1699
+       *b = INVALID_REGNUM;
1700
+       return true;
1701
+}
1702
+
1703
+#endif
1704
+
1705
+
1706 102 dgisselq
+/* totally buggy - we can't return pointers to nested functions */
1707
+static void
1708
+zip_asm_trampoline_template(FILE *f) {
1709
+       // Whereas at one time I thought I wouldn't need it, now I know I
1710
+       // need this trampoline function, although it is for a completely
1711
+       // different purpose than the one I was familiar with.
1712
+       fprintf(f, "\tldihi 0,r1\n");
1713
+       fprintf(f, "\tldilo 0,r1\n");
1714
+       fprintf(f, "\tjmp r1\n");
1715
+}
1716
+
1717
+/* Worker function for TARGET_TRAMPOLINE_INIT. */
1718
+static void
1719
+zip_trampoline_init(rtx m_tramp ATTRIBUTE_UNUSED,
1720
+       tree fndecl ATTRIBUTE_UNUSED,
1721
+       rtx chain_value ATTRIBUTE_UNUSED) {
1722
+// #warning "This needs to be filled out"
1723
+       abort();
1724
+}
1725
+
1726
+static tree
1727
+def_builtin(const char *name, enum insn_code icode, enum ZIP_BUILTIN_ID_CODE code,
1728
+       tree type)
1729
+{
1730
+       tree t = add_builtin_function(name,type,code,BUILT_IN_MD, NULL, NULL_TREE);
1731
+       zip_basic_check();
1732
+
1733
+       if(t) {
1734
+               zip_builtins[code] = t;
1735
+               zip_builtins_icode[code] = icode;
1736
+       }
1737
+
1738
+       return t;
1739
+
1740
+}
1741
+
1742
+void   zip_init_builtins(void) {
1743
+       zip_basic_check();
1744
+
1745
+  tree void_ftype_void = build_function_type_list(void_type_node, NULL_TREE);
1746
+#ifdef HAVE_zip_rtu
1747
+  def_builtin("zip_rtu", CODE_FOR_zip_rtu, ZIP_BUILTIN_RTU, void_ftype_void);
1748
+#endif
1749
+#ifdef HAVE_zip_halt
1750
+  def_builtin("zip_halt",  CODE_FOR_zip_halt,  ZIP_BUILTIN_HALT, void_ftype_void);
1751
+#endif
1752
+#ifdef HAVE_zip_idle
1753
+  def_builtin("zip_idle", CODE_FOR_zip_idle, ZIP_BUILTIN_IDLE, void_ftype_void);
1754
+#endif
1755
+
1756
+#ifdef HAVE_zip_syscall
1757
+// Support int SYSCALL(callID, int a, int b, int c);
1758
+  def_builtin("zip_syscall", CODE_FOR_zip_syscall, ZIP_BUILTIN_SYSCALL,
1759
+                       build_function_type_list(void_type_node, NULL_TREE));
1760
+#endif
1761
+
1762
+#ifdef HAVE_zip_save_context
1763
+  def_builtin("zip_save_context", CODE_FOR_zip_save_context, ZIP_BUILTIN_SAVE_CONTEXT,
1764
+               build_function_type_list(void_type_node, ptr_type_node, 0));
1765
+#endif
1766
+
1767
+#ifdef HAVE_zip_restore_context
1768
+  def_builtin("zip_restore_context", CODE_FOR_zip_restore_context, ZIP_BUILTIN_RESTORE_CONTEXT,
1769
+       build_function_type_list(void_type_node, ptr_type_node, 0));
1770
+#endif
1771
+
1772
+#ifdef HAVE_zip_bitrev
1773
+  def_builtin("zip_bitrev", CODE_FOR_zip_bitrev, ZIP_BUILTIN_BITREV,
1774
+       build_function_type_list(unsigned_type_node, unsigned_type_node,
1775
+               NULL_TREE));
1776
+#endif
1777
+
1778
+#ifdef HAVE_zip_cc
1779
+  def_builtin("zip_cc", CODE_FOR_zip_cc, ZIP_BUILTIN_CC,
1780
+       build_function_type_list(unsigned_type_node, NULL_TREE));
1781
+#endif
1782
+
1783 117 dgisselq
+#ifdef HAVE_zip_ucc
1784
+  def_builtin("zip_ucc", CODE_FOR_zip_ucc, ZIP_BUILTIN_UCC,
1785
+       build_function_type_list(unsigned_type_node, NULL_TREE));
1786
+#endif
1787
+
1788 102 dgisselq
+}
1789
+
1790
+static tree
1791
+zip_builtin_decl(unsigned zip_builtin_code, bool initialize_p ATTRIBUTE_UNUSED)
1792
+{
1793
+  if (zip_builtin_code >= ZIP_BUILTIN_MAX)
1794
+    return error_mark_node;
1795
+
1796
+  return zip_builtins[zip_builtin_code];
1797
+}
1798
+
1799
+static rtx
1800
+zip_expand_builtin(tree exp, rtx target,
1801
+               rtx subtarget ATTRIBUTE_UNUSED,
1802
+               machine_mode tmode ATTRIBUTE_UNUSED,
1803
+               int     ignore ATTRIBUTE_UNUSED) {
1804
+
1805
+       tree    fndecl = TREE_OPERAND(CALL_EXPR_FN(exp), 0);
1806
+       bool    nonvoid = (TREE_TYPE(TREE_TYPE(fndecl)) != void_type_node);
1807
+       enum    ZIP_BUILTIN_ID_CODE code=(enum ZIP_BUILTIN_ID_CODE)DECL_FUNCTION_CODE(fndecl);
1808
+       enum    insn_code icode = zip_builtins_icode[code];
1809
+       rtx     pat, op[5];
1810
+       call_expr_arg_iterator  iter;
1811
+       tree    arg;
1812
+
1813
+       if ((code == ZIP_BUILTIN_SAVE_CONTEXT)
1814
+                       ||(code == ZIP_BUILTIN_RESTORE_CONTEXT)) {
1815
+               arg = first_call_expr_arg(exp, &iter);
1816
+               if (arg == error_mark_node)
1817
+                       return NULL_RTX;
1818
+               op[0] = expand_normal(arg);
1819
+               if (GET_CODE(op[0]) != REG)
1820
+                       op[0] = force_reg(Pmode, op[0]);
1821
+               pat = GEN_FCN(icode)(op[0]);
1822
+       } else if (code == ZIP_BUILTIN_BITREV) {
1823
+               arg = first_call_expr_arg(exp, &iter);
1824
+               if (arg == error_mark_node) {
1825
+                       return NULL_RTX;
1826
+               }
1827
+               op[0] = expand_normal(arg);
1828
+               if (!target)
1829
+                       target = gen_reg_rtx(SImode);
1830
+               pat = GEN_FCN(icode)(target, op[0]);
1831 117 dgisselq
+       } else if ((code == ZIP_BUILTIN_CC)||(code == ZIP_BUILTIN_UCC)) {
1832 102 dgisselq
+               if (!target)
1833
+                       target = gen_reg_rtx(SImode);
1834
+               pat = GEN_FCN(icode)(target);
1835
+       } else // RTU, HALT, IDLE
1836
+               pat = GEN_FCN(icode)();
1837
+       if (!pat)
1838
+               return NULL_RTX;
1839
+       emit_insn(pat);
1840
+       return (nonvoid ? target : const0_rtx);
1841
+}
1842
+
1843
+static bool
1844
+zip_scalar_mode_supported_p(enum machine_mode mode) {
1845
+       zip_basic_check();
1846
+
1847
+       return ((mode)==SImode)||((mode)==DImode); // ||((mode)==SFmode);
1848
+}
1849
+
1850
+static bool
1851
+zip_libgcc_floating_mode_supported_p(enum machine_mode mode) {
1852
+       return ((mode)==SFmode)||((mode)==DFmode);
1853
+}
1854
+
1855
+static int
1856
+zip_address_cost(rtx addr ATTRIBUTE_UNUSED,
1857
+       enum machine_mode mode ATTRIBUTE_UNUSED,
1858
+       addr_space_t as ATTRIBUTE_UNUSED, bool spd ATTRIBUTE_UNUSED) {
1859
+       return 1;
1860
+}
1861
+
1862
+static bool
1863
+zip_mode_dependent_address_p(const_rtx addr ATTRIBUTE_UNUSED,
1864
+       addr_space_t as ATTRIBUTE_UNUSED) {
1865
+       return false;
1866
+}
1867
+
1868
+/*
1869
+static void
1870
+zip_asm_output_anchor(rtx x) {
1871
+       printf("ANCHOR: OP(%d)\n", GET_CODE(x));
1872
+}
1873
+*/
1874
+
1875
+static void
1876
+zip_debug_print(const char *pfx, int lvl, const char *str) {
1877
+       int     i;
1878
+       i = lvl;
1879
+       if ((true)||(lvl == 0))
1880
+               fprintf(stderr, "%s", pfx);
1881
+       else
1882
+               i += strlen(pfx);
1883
+       while(i-->0)
1884
+               fprintf(stderr, "  ");
1885
+       fprintf(stderr, "%s\n", str);
1886
+}
1887
+
1888
+static void
1889
+zip_debug_print_m(const char *pfx, int lvl, const char *str, enum machine_mode m) {
1890
+       int     i;
1891
+
1892
+       i = lvl;
1893
+       if ((true)||(lvl == 0))
1894
+               fprintf(stderr, "%s", pfx);
1895
+       else
1896
+               i = lvl+strlen(pfx);
1897
+       while(i-->0)
1898
+               fprintf(stderr, "  ");
1899
+       switch(m) {
1900
+               case VOIDmode:
1901
+                       fprintf(stderr, "%s:V\n", str);
1902
+                       break;
1903
+               case BLKmode:
1904
+                       fprintf(stderr, "%s:BLK\n", str);
1905
+                       break;
1906
+               case BImode:
1907
+                       fprintf(stderr, "%s:BI\n", str);
1908
+                       break;
1909
+#ifdef HAVE_QImode
1910
+               case QImode:
1911
+                       fprintf(stderr, "%s:QI\n", str);
1912
+                       break;
1913
+#endif
1914
+#ifdef HAVE_HImode
1915
+               case HImode:
1916
+                       fprintf(stderr, "%s:HI\n", str);
1917
+                       break;
1918
+#endif
1919
+               case SImode:
1920
+                       fprintf(stderr, "%s:SI\n", str);
1921
+                       break;
1922 122 dgisselq
+               case CCmode:
1923
+                       fprintf(stderr, "%s:CC\n", str);
1924
+                       break;
1925 102 dgisselq
+               case DImode:
1926
+                       fprintf(stderr, "%s:DI\n", str);
1927
+                       break;
1928
+               default:
1929
+                       fprintf(stderr, "%s:?\n", str);
1930
+       }
1931
+}
1932
+
1933
+static void
1934
+zip_debug_rtx_1(const char *pfx, const_rtx x, int lvl) {
1935
+       if (x == NULL_RTX) {
1936
+               zip_debug_print(pfx, lvl, "(NULL-RTX)");
1937
+               return;
1938
+       } else if (GET_CODE(x) > NUM_RTX_CODE) {
1939
+               char    buf[64];
1940
+               sprintf(buf, "(BAD-RTX-CODE %d)", GET_CODE(x));
1941
+               zip_debug_print(pfx, lvl, buf);
1942 117 dgisselq
+               gcc_assert(0 && "Bad RTX Code");
1943 102 dgisselq
+               return;
1944
+       } switch(GET_CODE(x)) { // rtl.def
1945 122 dgisselq
+       case PARALLEL:
1946
+               zip_debug_print(pfx, lvl, "(PARALLEL");
1947
+               for(int j=0; j<XVECLEN(x,0);j++)
1948
+                       zip_debug_rtx_1(pfx, XVECEXP(x,0,j), lvl+1);
1949
+               zip_debug_print(pfx, lvl, ")");
1950
+               debug_rtx(x);
1951
+               break;
1952 102 dgisselq
+       case INT_LIST: zip_debug_print(pfx, lvl, "(INT-LIST"); break;
1953 122 dgisselq
+       case SEQUENCE:
1954
+               zip_debug_print(pfx, lvl, "(SEQUENCE");
1955
+               for(int j=0; j<XVECLEN(x,0);j++)
1956
+                       zip_debug_rtx_1(pfx, XVECEXP(x,0,j), lvl+1);
1957
+               zip_debug_print(pfx, lvl, ")");
1958
+               debug_rtx(x);
1959
+               break;
1960 102 dgisselq
+       case ADDRESS: zip_debug_print(pfx, lvl, "(ADDRESS"); break;
1961
+       case DEBUG_INSN: zip_debug_print(pfx, lvl, "(DEBUG-INSN"); break;
1962
+       case INSN:
1963
+               zip_debug_print(pfx, lvl, "(INSN");
1964
+               /*
1965
+               { const rtx_insn *tmp_rtx;
1966
+               for(tmp_rtx = as_a <const rtx_insn *>(x); tmp_rtx != 0; tmp_rtx = NEXT_INSN(tmp_rtx)) {
1967
+                       zip_debug_rtx_1(tmp_rtx, lvl+1);
1968
+               }}
1969
+               */
1970
+               zip_debug_rtx_1(pfx, PATTERN(x), lvl+1);
1971
+               zip_debug_print(pfx, lvl, ")");
1972 117 dgisselq
+               debug_rtx(x);
1973 102 dgisselq
+               break;
1974
+       case JUMP_INSN: zip_debug_print(pfx, lvl, "(JUMP-INSN");
1975 111 dgisselq
+               zip_debug_rtx_1(pfx, PATTERN(x), lvl+1);
1976
+               zip_debug_print(pfx, lvl, ")");
1977
+               /*
1978 102 dgisselq
+               if (JUMP_LABEL(x)) {
1979 111 dgisselq
+                       if (GET_CODE(JUMP_LABEL(x)) == LABEL_REF) {
1980
+                               char    buf[64];
1981
+                               sprintf(buf, "(LABEL *.L%d))", CODE_LABEL_NUMBER(LABEL_REF_LABEL(JUMP_LABEL(x))));
1982
+                               zip_debug_print(pfx, lvl+1, buf);
1983
+                       } else if (GET_CODE(JUMP_LABEL(x))==CODE_LABEL) {
1984
+                               char    buf[64];
1985
+                               sprintf(buf, "(CODE_LABEL *.L%d))", CODE_LABEL_NUMBER(JUMP_LABEL(x)));
1986
+                               zip_debug_print(pfx, lvl+1, buf);
1987
+                       } else
1988
+                       zip_debug_print(pfx, lvl+1, "(w/Label))");
1989 102 dgisselq
+               } else
1990 111 dgisselq
+                       zip_debug_print(pfx, lvl+1, "(NO label))");
1991
+               debug_rtx(x);
1992
+               */
1993 102 dgisselq
+               break;
1994
+       case CALL:
1995
+               zip_debug_print(pfx, lvl, "(CALL (Adr) (Args)");
1996
+               zip_debug_rtx_1(pfx, XEXP(x,0), lvl+1);
1997
+               zip_debug_rtx_1(pfx, XEXP(x,1), lvl+1);
1998
+               zip_debug_print(pfx, lvl, ")");
1999
+               break;
2000
+       case CALL_INSN: zip_debug_print(pfx, lvl, "(CALL-INSN");
2001
+               debug_rtx(x);
2002
+               break;
2003
+       case BARRIER: zip_debug_print(pfx, lvl, "(BARRIER)"); break;
2004
+       case RETURN: zip_debug_print(pfx, lvl, "(RETURN)"); break;
2005
+       case NOTE:
2006
+               {       char buf[128];
2007
+                       sprintf(buf, "(NOTE %s)", GET_REG_NOTE_NAME(GET_MODE(x)));
2008
+                       zip_debug_print(pfx, lvl, buf);
2009
+               }break;
2010
+       case COND_EXEC: zip_debug_print(pfx, lvl, "(COND_EXEC)");
2011
+               debug_rtx(x);
2012
+               break;
2013
+       case ASM_INPUT: zip_debug_print(pfx, lvl, "(ASM INPUT)"); break;
2014
+       case ASM_OPERANDS: zip_debug_print(pfx, lvl, "(ASM OPERANDS)"); break;
2015
+       case UNSPEC: zip_debug_print(pfx, lvl, "(UNSPEC)"); break;
2016
+       case UNSPEC_VOLATILE: zip_debug_print(pfx, lvl, "(UNSPEC_VOLATILE)"); break;
2017
+       case CODE_LABEL:
2018
+               {
2019
+                       char    buf[64];
2020 111 dgisselq
+                       sprintf(buf, "(CODE_LABEL *.L%d)", CODE_LABEL_NUMBER(x));
2021 102 dgisselq
+                       zip_debug_print_m(pfx, lvl, buf, GET_MODE(x));
2022
+               } break;
2023
+       case SET:
2024
+               zip_debug_print_m(pfx, lvl, "(SET", GET_MODE(x));
2025 117 dgisselq
+               zip_debug_rtx_1(pfx, SET_DEST(x),lvl+1);
2026
+               zip_debug_rtx_1(pfx, SET_SRC(x),lvl+1);
2027 102 dgisselq
+               zip_debug_print(pfx, lvl, ")");
2028 117 dgisselq
+               debug_rtx(x);
2029 102 dgisselq
+               break;
2030 122 dgisselq
+       case REG: {
2031 127 dgisselq
+               char buf[25], mstr[4];
2032
+               mstr[0] = '\0';
2033
+               if (GET_MODE(x) == SImode)
2034
+                       strcpy(mstr, ":SI");
2035
+               else if (GET_MODE(x) == DImode)
2036
+                       strcpy(mstr, ":DI");
2037
+               else if (GET_MODE(x) == VOIDmode)
2038
+                       strcpy(mstr, ":V");
2039 102 dgisselq
+               if (REGNO(x) == zip_PC)
2040 127 dgisselq
+                       sprintf(buf, "(PC%s)", mstr);
2041 102 dgisselq
+               else if (REGNO(x) == zip_CC)
2042 127 dgisselq
+                       sprintf(buf, "(CC%s)", mstr);
2043 102 dgisselq
+               else if (REGNO(x) == zip_SP)
2044 127 dgisselq
+                       sprintf(buf, "(SP%s)", mstr);
2045 102 dgisselq
+               else if (REGNO(x) == zip_FP)
2046 127 dgisselq
+                       sprintf(buf, "(REG%s FP)", mstr);
2047 102 dgisselq
+               else if (REGNO(x) == zip_GOT)
2048 127 dgisselq
+                       sprintf(buf, "(REG%s GBL)", mstr);
2049 102 dgisselq
+               else if (FUNCTION_VALUE_REGNO_P(REGNO(x)))
2050 127 dgisselq
+                       sprintf(buf, "(REG%s RTN-VL)", mstr);
2051 102 dgisselq
+               else if (REGNO(x) == RETURN_ADDRESS_REGNUM)
2052 127 dgisselq
+                       sprintf(buf, "(REG%s RTN-AD)", mstr);
2053 122 dgisselq
+               else
2054 127 dgisselq
+                       sprintf(buf, "(REG%s %d)", mstr, REGNO(x));
2055
+               if (mstr[0])
2056
+                       zip_debug_print(pfx, lvl, buf);
2057
+               else
2058
+                       zip_debug_print_m(pfx, lvl, buf, GET_MODE(x));
2059 102 dgisselq
+               } break;
2060
+       case IF_THEN_ELSE: // 51
2061
+               zip_debug_print(pfx, lvl, "(IF-THEN-ELSE");
2062
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2063
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
2064
+               zip_debug_rtx_1(pfx, XEXP(x,2),lvl+1);
2065
+               zip_debug_print(pfx, lvl, ")");
2066
+               break;
2067
+       case PC:
2068
+               zip_debug_print(pfx, lvl, "(PC)");
2069
+               break;
2070
+       case CC0:
2071
+               zip_debug_print(pfx, lvl, "(CC0)");
2072
+               break;
2073
+       case COMPARE:
2074 127 dgisselq
+               zip_debug_print_m(pfx, lvl, "(COMPARE", GET_MODE(x));
2075 102 dgisselq
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2076
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
2077
+               zip_debug_print(pfx, lvl, ")");
2078
+               break;
2079 111 dgisselq
+       case CONST:
2080
+               zip_debug_print_m(pfx, lvl, "(CONST", GET_MODE(x));
2081
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2082
+               zip_debug_print(pfx, lvl, ")");
2083
+               break;
2084 102 dgisselq
+       case CONST_INT:
2085
+               { char buf[25];
2086
+               if (GET_MODE(x)==SImode)
2087 111 dgisselq
+                       sprintf(buf, "(CONST_INT:SI %ld)", INTVAL(x));
2088 102 dgisselq
+               else if (GET_MODE(x)==VOIDmode)
2089 111 dgisselq
+                       sprintf(buf, "(CONST_INT:V %ld)", INTVAL(x));
2090 102 dgisselq
+               else
2091 111 dgisselq
+                       sprintf(buf, "(CONST_INT:? %ld)", INTVAL(x));
2092 102 dgisselq
+               zip_debug_print(pfx, lvl, buf);
2093
+               } break;
2094
+       case LABEL_REF:
2095 122 dgisselq
+               { char buf[256];
2096 111 dgisselq
+               sprintf(buf, "(LABEL *.L%d)", CODE_LABEL_NUMBER(LABEL_REF_LABEL(x)));
2097
+               zip_debug_print(pfx, lvl, buf);
2098
+               }
2099 102 dgisselq
+               break;
2100
+       case SYMBOL_REF:
2101
+               {
2102
+                       char buf[64];
2103
+                       sprintf(buf, "(SYMBOL: %s)", XSTR(x,0));
2104
+                       // fprintf(file, "%s", XSTR(x,0));
2105
+                       zip_debug_print(pfx, lvl, buf);
2106
+               }
2107
+               break;
2108
+       case MEM:
2109
+               zip_debug_print_m(pfx, lvl, "(MEM", GET_MODE(x));
2110
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2111
+               zip_debug_print(pfx, lvl, ")");
2112
+               break;
2113
+       /*
2114
+       case VALUE:
2115
+               {
2116
+                       char buf[64];
2117
+                       sprintf(buf, "(VALUE: %d)", INTVAL(XEXP,0));
2118
+                       zip_debug_print_m(pfx, lvl, "buf", GET_MODE(x));
2119
+               }
2120
+               break;
2121
+       */
2122
+       case PLUS:
2123
+               zip_debug_print_m(pfx, lvl, "(PLUS", GET_MODE(x));
2124
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2125
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
2126
+               zip_debug_print(pfx, lvl, ")");
2127
+               break;
2128
+       case MINUS:
2129
+               zip_debug_print_m(pfx, lvl, "(MINUS", GET_MODE(x));
2130
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2131
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
2132
+               zip_debug_print(pfx, lvl, ")");
2133
+               break;
2134
+       case AND:
2135
+               zip_debug_print_m(pfx, lvl, "(AND", GET_MODE(x));
2136
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2137
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
2138
+               zip_debug_print(pfx, lvl, ")");
2139
+               break;
2140
+       case IOR:
2141
+               zip_debug_print_m(pfx, lvl, "(OR", GET_MODE(x));
2142
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2143
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
2144
+               zip_debug_print(pfx, lvl, ")");
2145
+               break;
2146
+       case XOR:
2147
+               zip_debug_print_m(pfx, lvl, "(XOR", GET_MODE(x));
2148
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2149
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
2150
+               zip_debug_print(pfx, lvl, ")");
2151
+               break;
2152
+       case MULT:
2153
+               zip_debug_print_m(pfx, lvl, "(MULT", GET_MODE(x));
2154
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2155
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
2156
+               zip_debug_print(pfx, lvl, ")");
2157
+               break;
2158
+       case EQ:        //
2159
+               zip_debug_print_m(pfx, lvl, "(EQ", GET_MODE(x));
2160
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2161
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
2162
+               zip_debug_print(pfx, lvl, ")");
2163
+               break;
2164
+       case NE:        //
2165
+               zip_debug_print_m(pfx, lvl, "(NE", GET_MODE(x));
2166
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2167
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
2168
+               zip_debug_print(pfx, lvl, ")");
2169
+               break;
2170
+       case GE:        //
2171
+               zip_debug_print_m(pfx, lvl, "(GE", GET_MODE(x));
2172
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2173
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
2174
+               zip_debug_print(pfx, lvl, ")");
2175
+               break;
2176
+       case GT:        //
2177
+               zip_debug_print_m(pfx, lvl, "(GT", GET_MODE(x));
2178
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2179
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
2180
+               zip_debug_print(pfx, lvl, ")");
2181
+               break;
2182
+       case LE:        //
2183
+               zip_debug_print_m(pfx, lvl, "(LE", GET_MODE(x));
2184
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2185
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
2186
+               zip_debug_print(pfx, lvl, ")");
2187
+               break;
2188
+       case LT:        //
2189
+               zip_debug_print_m(pfx, lvl, "(LT", GET_MODE(x));
2190
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2191
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
2192
+               zip_debug_print(pfx, lvl, ")");
2193
+               break;
2194
+       case GEU:       //
2195
+               zip_debug_print_m(pfx, lvl, "(GEU", GET_MODE(x));
2196
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2197
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
2198
+               zip_debug_print(pfx, lvl, ")");
2199
+               break;
2200
+       case GTU:       //
2201
+               zip_debug_print_m(pfx, lvl, "(GTU", GET_MODE(x));
2202
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2203
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
2204
+               zip_debug_print(pfx, lvl, ")");
2205
+               break;
2206
+       case LEU:       //
2207
+               zip_debug_print_m(pfx, lvl, "(LEU", GET_MODE(x));
2208
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2209
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
2210
+               zip_debug_print(pfx, lvl, ")");
2211
+               break;
2212
+       case LTU:       //
2213
+               zip_debug_print_m(pfx, lvl, "(LTU", GET_MODE(x));
2214
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2215
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
2216
+               zip_debug_print(pfx, lvl, ")");
2217
+               break;
2218
+       case SCRATCH:   //
2219
+               zip_debug_print_m(pfx, lvl, "(SCRATCH)", GET_MODE(x));
2220
+               break;
2221
+       case SUBREG:
2222
+               { char buf[25];
2223 111 dgisselq
+               if (REG_P(XEXP(x,0))) {
2224
+                       sprintf(buf, "(SUBREG %d/%d)", REGNO(XEXP(x,0)),
2225
+                               SUBREG_BYTE(x));
2226
+                       zip_debug_print(pfx, lvl, buf);
2227
+               } else if (MEM_P(XEXP(x,0))) {
2228
+                       sprintf(buf, "(SUBREG /%d", SUBREG_BYTE(x));
2229
+                       zip_debug_print(pfx, lvl, buf);
2230
+                       zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2231
+                       zip_debug_print(pfx, lvl, ")");
2232
+               } else {
2233
+                       sprintf(buf, "(SUBREG UNK /%d", SUBREG_BYTE(x));
2234
+                       zip_debug_print(pfx, lvl, buf);
2235
+                       zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2236
+                       zip_debug_print(pfx, lvl, ")");
2237
+               }}
2238
+               break;
2239 127 dgisselq
+       case ASHIFT:
2240
+               zip_debug_print_m(pfx, lvl, "(ASHIFT", GET_MODE(x));
2241
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2242
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
2243
+               zip_debug_print(pfx, lvl, ")");
2244
+               break;
2245
+       case ASHIFTRT:
2246
+               zip_debug_print_m(pfx, lvl, "(ASHIFTRT", GET_MODE(x));
2247
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2248
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
2249
+               zip_debug_print(pfx, lvl, ")");
2250
+               break;
2251
+       case LSHIFTRT:
2252
+               zip_debug_print_m(pfx, lvl, "(LSHIFTRT", GET_MODE(x));
2253
+               zip_debug_rtx_1(pfx, XEXP(x,0),lvl+1);
2254
+               zip_debug_rtx_1(pfx, XEXP(x,1),lvl+1);
2255
+               zip_debug_print(pfx, lvl, ")");
2256
+               break;
2257 102 dgisselq
+       default:
2258 111 dgisselq
+               { char buf[128];
2259 102 dgisselq
+               sprintf(buf, "(? = %d) -- calling DEBUG-RTX", GET_CODE(x));
2260
+               zip_debug_print(pfx, lvl, buf);
2261
+               debug_rtx(x);
2262
+               } break;
2263
+       }
2264
+}
2265
+
2266
+void
2267
+zip_debug_rtx_pfx(const char *pfx, const_rtx x) {
2268
+       zip_debug_rtx_1(pfx, x, 0);
2269
+}
2270
+
2271
+void
2272
+zip_debug_rtx(const_rtx x) {
2273
+       zip_debug_rtx_pfx("", x);
2274
+}
2275
+
2276
+void
2277
+zip_debug_insn(rtx_insn *insn ATTRIBUTE_UNUSED) {
2278
+}
2279
+
2280
+void
2281
+zip_debug_bb(basic_block bb) {
2282
+       rtx_insn        *insn;
2283
+
2284
+       fprintf(stderr, "************ BASIC-BLOCK ***************\n");
2285
+       FOR_BB_INSNS(bb, insn)
2286
+       {
2287
+               zip_debug_rtx(insn);
2288
+       }
2289
+}
2290
+
2291
+
2292
+static bool
2293 122 dgisselq
+zip_legitimate_opb(rtx x, bool strict)
2294 102 dgisselq
+{
2295 103 dgisselq
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
2296 102 dgisselq
+
2297 111 dgisselq
+       if (dbg) fprintf(stderr, "ZIP-LEGITIMATE-OPB\n");
2298 102 dgisselq
+       if (dbg) zip_debug_rtx_pfx("Test: ", x);
2299
+
2300
+       if (NULL_RTX == x)
2301
+               return false;
2302 122 dgisselq
+       else if ((GET_MODE(x) != SImode)&&(GET_MODE(x) != VOIDmode)) {
2303
+               if (dbg) fprintf(stderr, "ZIP-LEGITIMATE-OPB -> Mode failure\n");
2304 102 dgisselq
+               return false;
2305 122 dgisselq
+       } else if ((strict)&&(REG_P(x))) {
2306
+               if (REGNO(x)<zip_CC) {
2307
+                       if (dbg) fprintf(stderr, "ZIP-LEGITIMATE-OPB -> (Reg)\n");
2308
+                       return true;
2309
+               } else return false;
2310
+       } else if (register_operand(x, GET_MODE(x))) {
2311
+               // This also handles subregs
2312
+               if (dbg) fprintf(stderr, "ZIP-LEGITIMATE-OPB -> (Reg)\n");
2313
+               return true;
2314 111 dgisselq
+       } else if ((CONST_INT_P(x))
2315
+               &&(INTVAL(x) >= zip_min_opb_imm)
2316
+               &&(INTVAL(x) <= zip_max_opb_imm)) {
2317 122 dgisselq
+               if (dbg) fprintf(stderr, "ZIP-LEGITIMATE-OPB -> YES! (Const) %ld <= %ld <= %ld\n", zip_min_opb_imm, INTVAL(x), zip_max_opb_imm);
2318 111 dgisselq
+               return true;
2319 122 dgisselq
+       // } else if ((GET_CODE(x) == LABEL_REF)||(GET_CODE(x)==CODE_LABEL)) {
2320
+               // return true;
2321 102 dgisselq
+       } else if (GET_CODE(x) == PLUS) {
2322
+               // Is it a valid register?
2323 122 dgisselq
+               if ((!strict)&&(!register_operand((rtx)XEXP((rtx)x,0), GET_MODE(x)))) {
2324 111 dgisselq
+                       if (dbg) fprintf(stderr, "ZIP-LEGITIMATE-OPB -> No (No reg in +%s)\n",
2325 102 dgisselq
+                       (GET_CODE(XEXP(x,1))==REG)?", reg in op[1]":"");
2326
+                       return false;
2327 122 dgisselq
+               } else if ((strict)&&((!REG_P(XEXP(x,0)))||(REGNO(XEXP(x,0))>=zip_CC))) {
2328 102 dgisselq
+                       return false;
2329
+               } if ((GET_CODE(XEXP(x, 1)) == CONST_INT)
2330
+                       &&(INTVAL(XEXP(x, 1)) <= zip_max_anchor_offset)
2331
+                       &&(INTVAL(XEXP(x, 1)) >= zip_min_anchor_offset)) {
2332 111 dgisselq
+                       if (dbg) fprintf(stderr, "ZIP-LEGITIMATE-OPB -> YES! (reg+int)\n");
2333 103 dgisselq
+                       // if((INTVAL(XEXP(x,1))<0)&&(REGNO(XEXP(x,0))==zip_SP))
2334
+                               // gcc_unreachable();
2335 102 dgisselq
+                       return true;
2336
+               } if ((GET_CODE(XEXP(x, 1)) == LABEL_REF)
2337 122 dgisselq
+                       ||(GET_CODE(XEXP(x, 1)) == CODE_LABEL)
2338 102 dgisselq
+                       ||(GET_CODE(XEXP(x, 1)) == SYMBOL_REF)) {
2339
+                       // While we can technically support this, the problem
2340
+                       // is that the symbol address could be anywhere, and we
2341
+                       // have no way of recovering if it's outside of our
2342
+                       // 14 allowable bits.
2343 111 dgisselq
+                       if (dbg) fprintf(stderr, "ZIP-LEGITIMATE-OPB -> No. (reg+lbl)\n");
2344 102 dgisselq
+                       return false;
2345
+               }
2346
+       }
2347
+
2348 111 dgisselq
+       if (dbg) fprintf(stderr, "ZIP-LEGITIMATE-OPB -> No\n");
2349 102 dgisselq
+       if (dbg) zip_debug_rtx(x);
2350
+       return false;
2351
+}
2352
+
2353
+static bool
2354
+zip_legitimate_move_operand_p(machine_mode mode ATTRIBUTE_UNUSED, rtx x, bool strict) {
2355
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
2356
+
2357
+       if (dbg) fprintf(stderr, "ZIP-VALID-MOVE-OPERAND\n");
2358
+       if (dbg) zip_debug_rtx_pfx("VMov?: ", x);
2359
+
2360 122 dgisselq
+       if (!zip_legitimate_opb(x, strict))
2361 102 dgisselq
+               return false;
2362 122 dgisselq
+       else if ((GET_CODE(x)==PLUS)&&(CONST_INT_P(XEXP(x,1)))) {
2363
+               if ((INTVAL(XEXP(x, 1)) > zip_max_mov_offset)
2364
+                       ||(INTVAL(XEXP(x, 1)) < zip_min_mov_offset)) {
2365 124 dgisselq
+                       if (dbg) fprintf(stderr, "ZIP-VALID-MOVE-OPERAND -> NO! (reg+int), int out of bounds: %ld\n", INTVAL(XEXP(x,1)));
2366 102 dgisselq
+                       return false;
2367
+               }
2368
+       }
2369
+
2370 122 dgisselq
+       if (dbg) fprintf(stderr, "ZIP-VALID-MOVE-OPERAND -> Yes\n");
2371 102 dgisselq
+       if (dbg) zip_debug_rtx(x);
2372 122 dgisselq
+       return true;
2373 102 dgisselq
+}
2374
+
2375
+int
2376
+zip_pd_mov_operand(rtx op)
2377
+{
2378
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
2379
+
2380
+       if (dbg) fprintf(stderr, "ZIP-VALID-MOV(predicate) for OPERAND\n");
2381
+       return zip_legitimate_move_operand_p(VOIDmode, op, !can_create_pseudo_p());
2382
+}
2383
+
2384
+int
2385 111 dgisselq
+zip_pd_mvimm_operand(rtx op)
2386
+{
2387
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
2388
+
2389
+       if (dbg) fprintf(stderr, "ZIP-VALID-MVIMM(predicate) for OPERAND\n");
2390
+       if (!CONST_INT_P(op))
2391
+               return false;
2392
+       if (INTVAL(op) > zip_max_mov_offset)
2393
+               return false;
2394
+       if (INTVAL(op) < zip_min_mov_offset)
2395
+               return false;
2396
+       return true;
2397
+}
2398
+
2399
+int
2400
+zip_pd_imm_operand(rtx op)
2401
+{
2402
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
2403
+
2404
+       if (dbg) fprintf(stderr, "ZIP-VALID-IMM(predicate) for OPERAND\n");
2405
+       if (!CONST_INT_P(op))
2406
+               return false;
2407
+       if (INTVAL(op) > zip_max_anchor_offset)
2408
+               return false;
2409
+       if (INTVAL(op) < zip_min_anchor_offset)
2410
+               return false;
2411
+       return true;
2412
+}
2413
+
2414
+int
2415 102 dgisselq
+zip_address_operand(rtx op)
2416
+{
2417
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
2418
+
2419
+       if (dbg) fprintf(stderr, "ZIP-ADDRESS for OPERAND\n");
2420 111 dgisselq
+       if ((REG_P(op))&&(REGNO(op)==zip_CC))
2421
+               return false;
2422
+       else if ((GET_CODE(op) == PLUS)&&(REG_P(XEXP(op,0)))
2423
+                       &&(REGNO(XEXP(op,0))==zip_CC))
2424
+               return false;
2425
+       else
2426
+               return zip_legitimate_opb(op, !can_create_pseudo_p());
2427 102 dgisselq
+}
2428
+
2429
+int
2430 111 dgisselq
+zip_pd_opb_operand(rtx op)
2431 102 dgisselq
+{
2432
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
2433
+
2434 111 dgisselq
+       if (dbg) fprintf(stderr, "ZIP-OPB(predicate) for OPERAND\n");
2435 122 dgisselq
+       return zip_legitimate_opb(op, false); //, !can_create_pseudo_p());
2436 102 dgisselq
+}
2437
+
2438
+int
2439
+zip_ct_address_operand(rtx op)
2440
+{
2441
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
2442
+
2443
+       if (dbg) fprintf(stderr, "ZIP-ADDRESS(constraint) for OPERAND\n");
2444 111 dgisselq
+       return zip_legitimate_opb(op, !can_create_pseudo_p());
2445 102 dgisselq
+}
2446
+
2447
+int
2448
+zip_const_address_operand(rtx x) {
2449
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
2450
+
2451
+       if (dbg) fprintf(stderr, "is ZIP-CONST-ADDRESS?\n");
2452
+       if (dbg) zip_debug_rtx(x);
2453 127 dgisselq
+       if ((GET_MODE(x) != SImode)&&(GET_MODE(x) != VOIDmode)) {
2454
+               fprintf(stderr, "is ZIP-CONST-ADDRESS? -> NO, BAD MODE\n");
2455 102 dgisselq
+               return false;
2456 127 dgisselq
+       }
2457 102 dgisselq
+       if ((GET_CODE(x) == LABEL_REF)
2458
+                       ||(GET_CODE(x) == CODE_LABEL)
2459
+                       ||(GET_CODE(x) == SYMBOL_REF)) {
2460 127 dgisselq
+               if (dbg) fprintf(stderr, "is ZIP-CONST-ADDRESS? -> YES! (LBL)\n");
2461 102 dgisselq
+               return true;
2462
+       } else if (CONST_INT_P(x)) {
2463 127 dgisselq
+               if (dbg) fprintf(stderr, "is ZIP-CONST-ADDRESS? -> YES! (INT)\n");
2464 102 dgisselq
+               return true;
2465
+       } else if (GET_CODE(x) == PLUS) {
2466
+               if (dbg) fprintf(stderr, "is ZIP-CONST-ADDRESS(PLUS)\n");
2467
+               return ((zip_const_address_operand(XEXP(x,0)))
2468
+                       &&(CONST_INT_P(XEXP(x,1))));
2469
+       } else if (GET_CODE(x) == MINUS) {
2470
+               if (dbg) fprintf(stderr, "is ZIP-CONST-ADDRESS(MINUS)\n");
2471
+               return ((zip_const_address_operand(XEXP(x,0)))
2472
+                       &&(zip_const_address_operand(XEXP(x,1))));
2473
+       }
2474
+
2475
+       if (dbg) fprintf(stderr, "is ZIP-CONST-ADDRESS? -> No\n");
2476
+       if (dbg) zip_debug_rtx(x);
2477
+       return false;
2478
+}
2479
+
2480
+int
2481
+zip_ct_const_address_operand(rtx x) {
2482
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
2483
+
2484
+       if (dbg) fprintf(stderr, "ZIP-CONST-ADDRESS(constraint)\n");
2485
+       return zip_const_address_operand(x);
2486
+}
2487
+
2488
+int
2489
+zip_pd_const_address_operand(rtx x) {
2490
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
2491
+
2492
+       if (dbg) fprintf(stderr, "ZIP-CONST-ADDRESS(predicate)\n");
2493
+       return zip_const_address_operand(x);
2494
+}
2495
+
2496
+
2497
+static bool
2498
+zip_legitimate_address_p(machine_mode mode ATTRIBUTE_UNUSED, rtx x, bool strict)
2499
+{
2500
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
2501
+
2502
+       if (dbg) fprintf(stderr, "Zip-LEGITIMATE-ADDRESS-P\n");
2503
+       if (dbg) zip_debug_rtx(x);
2504
+
2505
+       // Only insist the register be a valid register if strict is true
2506 111 dgisselq
+       if (zip_legitimate_opb(x, strict))
2507 102 dgisselq
+               return true;
2508 111 dgisselq
+       // else if (zip_const_address_operand(x))
2509
+               // return true;
2510 102 dgisselq
+
2511
+       return false;
2512
+}
2513
+
2514 111 dgisselq
+static rtx
2515
+zip_legitimize_address(rtx x, rtx oldx ATTRIBUTE_UNUSED, machine_mode mode ATTRIBUTE_UNUSED) {
2516
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
2517
+
2518
+       if (dbg) zip_debug_rtx_pfx("LEGITIMIZE: ", x);
2519
+       if (zip_legitimate_address_p(mode, x, !can_create_pseudo_p()))
2520
+               return x;
2521
+
2522
+       if (GET_CODE(x)==PLUS) {
2523
+               if (!REG_P(XEXP(x,0)))
2524
+                       XEXP(x,0) = force_reg(GET_MODE(x),XEXP(x,0));
2525
+               if ((!zip_legitimate_address_p(mode, x, !can_create_pseudo_p()))
2526
+                       &&(!CONST_INT_P(XEXP(x,1))))
2527
+                       x = force_reg(GET_MODE(x),x);
2528
+       } else if (MEM_P(x))
2529
+               x = force_reg(GET_MODE(x),x);
2530
+
2531
+       if (dbg) zip_debug_rtx_pfx("LEGITIMATE: ", x);
2532
+       return x;
2533
+}
2534
+
2535 102 dgisselq
+void
2536
+zip_asm_output_def(FILE *stream, const char *name, const char *value)
2537
+{
2538
+       assemble_name(stream, name);
2539
+       fprintf(stream, "\t.equ ");
2540
+       assemble_name(stream, value);
2541
+       fputc('\n', stream);
2542
+}
2543
+
2544 111 dgisselq
+#define        USE_SUBREG
2545
+#ifdef USE_SUBREG
2546
+#define        SREG_P(RTX) ((SUBREG_P(RTX))&&(REG_P(XEXP(RTX,0))))
2547
+#define        SMEM_P(RTX) ((SUBREG_P(RTX))&&(MEM_P(XEXP(RTX,0))))
2548
+#else
2549
+#define        SREG_P(RTX)     false
2550
+#define        SMEM_P(RTX)     false
2551
+#endif
2552 102 dgisselq
+
2553
+const char *zip_set_zero_or_one(rtx condition, rtx dst) {
2554 103 dgisselq
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
2555 102 dgisselq
+       if (dbg) fprintf(stderr, "ZIP::SET-ZERO-OR-ONE\n");
2556
+       if (dbg) zip_debug_rtx_pfx("CND", condition);
2557
+       if (dbg) zip_debug_rtx_pfx("REG", dst);
2558
+       switch(GET_CODE(condition)) {
2559
+       case EQ:        return "LDI\t0,%0\n\tLDILO.Z\t1,%0";
2560
+       case NE:        return "LDI\t0,%0\n\tLDILO.NZ\t1,%0";
2561
+       case LT:        return "LDI\t0,%0\n\tLDILO.LT\t1,%0";
2562
+       case GT:        return "LDI\t0,%0\n\tLDILO.GT\t1,%0";
2563
+       case LE:        return "LDI\t1,%0\n\tLDILO.GT\t0,%0";
2564
+       case GE:        return "LDI\t0,%0\n\tLDILO.GE\t1,%0";
2565
+       case LTU:       return "LDI\t0,%0\n\tLDILO.C\t1,%0";
2566
+       case GTU:       return "LDI\t1,%0\n\tLDILO.C\t0,%0\n\tLDILO.Z\t0,%0";
2567
+       case LEU:       return "LDI\t0,%0\n\tLDILO.C\t1,%0\n\tLDILO.Z\t1,%0";
2568
+       case GEU:       return "LDI\t1,%0\n\tLDILO.C\t0,%0";
2569
+       default:
2570
+               zip_debug_rtx(condition);
2571
+               internal_error("CSTORE Unsupported condition");
2572
+               return NULL;
2573
+       }
2574
+}
2575
+
2576 127 dgisselq
+/*
2577 102 dgisselq
+const char *zip_binary_movsicc(rtx_code condition, const char *op, const int opno) {
2578
+       static char     result[64] = "";
2579
+       switch(condition) {
2580
+               //
2581
+               // Result already exists in the iffalse register
2582
+               // Can't change it.  Therefore, on the
2583
+               // condition ... move true register to the
2584
+               // destination
2585
+               //
2586
+               case EQ:        sprintf(result, "%s.Z\t%%%d,%%0", op, opno); break;
2587
+               case NE:        sprintf(result, "%s.NZ\t%%%d,%%0", op, opno); break;
2588
+               case LT:        sprintf(result, "%s.LT\t%%%d,%%0", op, opno); break;
2589
+               case GT:        sprintf(result, "%s.GT\t%%%d,%%0", op, opno); break;
2590
+               // .LE doesn't exist on Zip CPU--turn this into two instructions
2591
+               case LE:        sprintf(result, "%s.LT\t%%%d,%%0\n\t%s.Z\t%%%d,%%0", op, opno, op, opno); break;
2592
+               case GE:        sprintf(result, "%s.GE\t%%%d,%%0", op, opno); break;
2593
+               case LTU:       sprintf(result, "%s.C\t%%%d,%%0", op, opno); break;
2594
+               //
2595
+               // .GTU doesn't exist on the Zip CPU either. We also note that
2596
+               // .C will never be set on an equal condition.  Therefore, we
2597
+               // turn this into a XOR.NZ 2,CC, which will set the .C condition
2598
+               // as long as .Z wasn't true.  We then undo this when we're
2599
+               // done.  This is possible since none of these instructions
2600
+               // (LDI/MOV/Lod conditional, nor Xor conditional) will ever set
2601
+               // the condition codes.
2602
+               //
2603
+               // This is obviously not very optimal.  Avoid this by all means
2604
+               // if you can
2605
+               case GTU:       sprintf(result, "XOR.NZ\t2,CC\n%s.C\t%%%d,%%0\n\tXOR.NZ\t2,CC", op, opno); break;
2606
+               // .LEU doesn't exist on Zip CPU either--turn this into another
2607
+               // two instructions
2608
+               case LEU:       sprintf(result, "%s.C\t%%%d,%%0\n\t%s.Z\t%%%d,%%0", op, opno, op, opno); break;
2609
+               //
2610
+               // .GEU doesn't exist on Zip CPU.  Implementing it her is
2611
+               // painful.  We can change the condition codes to make it so,
2612
+               // but the instruction requires the condition codes not be
2613
+               // changed.  Hence, we must change them back if we do so.
2614
+               //
2615
+               // .C will be set on less than but not equal.  Hence !.C will
2616
+               // be true on greater than or equal.
2617
+               case GEU:       sprintf(result, "XOR\t2,CC\n%s.C\t%%%d,%%0\n\tXOR\t2,CC", op, opno); break;
2618
+               default:
2619
+                       internal_error("MOVSICC(BINARY) Unsupported condition");
2620
+                       return NULL;
2621
+       } return result;
2622
+}
2623 127 dgisselq
+*/
2624 102 dgisselq
+
2625 127 dgisselq
+bool
2626
+zip_supported_condition(int c) {
2627
+       switch(c) {
2628
+       case NE: case LT: case EQ: case GT: case GE: case LTU:
2629
+               return true;
2630
+               break;
2631
+       default:
2632
+               break;
2633
+       } return false;
2634 102 dgisselq
+}
2635
+
2636 127 dgisselq
+bool
2637
+zip_signed_comparison(int c) {
2638
+       switch(c) {
2639
+       case NE: case LT: case EQ: case GT: case GE:
2640
+               return true;
2641
+       default:
2642
+               break;
2643
+       } return false;
2644
+}
2645
+
2646
+void
2647
+zip_expand_movsicc(rtx dst, rtx condition, rtx iftrue, rtx iffalse) {
2648 103 dgisselq
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
2649 102 dgisselq
+       if (dbg) fprintf(stderr, "ZIP::MOVSICC\n");
2650
+       if (dbg) zip_debug_rtx_pfx("DST", dst);
2651
+       if (dbg) zip_debug_rtx_pfx("CND", condition);
2652
+       if (dbg) zip_debug_rtx_pfx("TRU", iftrue);
2653
+       if (dbg) zip_debug_rtx_pfx("FAL", iffalse);
2654 127 dgisselq
+
2655
+       // Start with the condition
2656
+       rtx     cmpa = XEXP(condition,0), cmpb=XEXP(condition,1);
2657
+       enum rtx_code   cmpcode = GET_CODE(condition);
2658
+
2659
+       //; Do we need to swap or adjust the condition?
2660
+       if (zip_supported_condition((int)cmpcode)) {
2661
+               // Keep everything as is
2662
+       } else if ((zip_supported_condition(reverse_condition(cmpcode)))
2663
+                       &&(!MEM_P(iffalse))) {
2664
+               rtx tem = iffalse;
2665
+               iffalse = iftrue;
2666
+               iftrue = tem;
2667
+
2668
+               cmpcode = reverse_condition(cmpcode);
2669
+       } else if ((zip_supported_condition((int)swap_condition(cmpcode)))
2670
+               &&((REG_P(cmpb))||(can_create_pseudo_p()))) {
2671
+               rtx tem = cmpa;
2672
+               cmpa = cmpb;
2673
+               cmpa = tem;
2674
+               cmpcode = swap_condition(cmpcode);
2675
+
2676
+               if ((GET_CODE(cmpa)==PLUS)&&(zip_signed_comparison((int)cmpcode))
2677
+                       &&(REG_P(XEXP(cmpa,0)))
2678
+                       &&(CONST_INT_P(XEXP(cmpa,1)))
2679
+                       &&(abs(INTVAL(XEXP(cmpa,1)))<(1<<17))) {
2680
+
2681
+                       // If we were doing CMP x(Rb),Ra
2682
+                       // and we just changed it to CMP Ra,x(Rb)
2683
+                       // adjust it to CMP -x(Ra),Rb
2684
+                       cmpb = plus_constant(SImode, cmpb, -INTVAL(XEXP(cmpa,1)));
2685
+                       cmpa = XEXP(cmpa,0);
2686
+               } else if (!REG_P(cmpa)) {
2687
+                       // Otherwise, if we had anything else in Rb other than
2688
+                       // a register ... such as a constant, then load it into
2689
+                       // a register before comparing it.  So
2690
+                       //      CMP x,Ra
2691
+                       // became
2692
+                       //      CMP Ra,x
2693
+                       // now becomes
2694
+                       //      LDI x,Rt
2695
+                       //      CMP Ra,Rt
2696
+                       // (We already tested for can_create_pseudo_p() above..)
2697
+                       tem = gen_reg_rtx(SImode);
2698
+                       emit_move_insn(tem, cmpa);
2699
+                       cmpa = tem;
2700 102 dgisselq
+               }
2701 127 dgisselq
+       } else {
2702
+               // Here's our last chance.
2703
+               // This will adjust for less than equal types of stuff
2704
+               int     cod = (int)cmpcode;
2705
+               zip_canonicalize_comparison(&cod, &cmpa, &cmpb, false);
2706
+               cmpcode = (enum rtx_code)cod;
2707 102 dgisselq
+       }
2708
+
2709 127 dgisselq
+       gcc_assert(zip_supported_condition((int)cmpcode));
2710
+
2711
+       //; Always do the default move
2712
+       emit_move_insn(dst, iffalse);
2713
+
2714
+       rtx     cc_rtx = gen_rtx_REG(CCmode, zip_CC);
2715
+
2716
+       //; Now let's get our comparison right
2717
+       emit_insn(gen_rtx_SET(VOIDmode, cc_rtx,
2718
+               gen_rtx_COMPARE(CCmode, cmpa, cmpb)));
2719
+
2720
+       //; Finally, let's load the value on true
2721
+       emit_insn(gen_movsicc_bare(dst,
2722
+                       gen_rtx_fmt_ee(cmpcode, SImode, NULL_RTX, NULL_RTX),
2723
+                       iftrue, dst));
2724 102 dgisselq
+}
2725
+
2726
+const char *zip_addsicc(rtx dst, rtx condition, rtx ifsrc, rtx addv ATTRIBUTE_UNUSED) {
2727
+       // We know upon entry that REG_P(dst) must be true
2728
+       if (!REG_P(dst))
2729
+               internal_error("%s","ADDSICC into something other than register");
2730
+       if ((REG_P(ifsrc))&&(REGNO(dst)==REGNO(ifsrc))) {
2731
+               switch (GET_CODE(condition)) {
2732
+               case EQ: return "ADD.Z\t%3,%0";
2733
+               case NE: return "ADD.NZ\t%3,%0";
2734
+               case LT: return "ADD.LT\t%3,%0";
2735
+               case GT: return "ADD.GT\t%3,%0";
2736
+               case LE: return "ADD.LT\t%3,%0\n\tADD.Z\t%3,%0";
2737
+               case GE: return "ADD.GE\t%3,%0";
2738
+               case LTU: return "ADD.C\t%3,%0";
2739
+               case LEU: return "ADD.C\t%3,%0\n\tADD.Z\t%3,%0";
2740
+               case GEU: return "XOR\t2,CC\n\tADD.C\t%3,%0\n\tXOR\t2,CC";
2741
+               // Can do a GEU comparison, and then undo on the Zero condition
2742
+               case GTU: return "XOR\t2,CC\n\tADD.C\t%3,%0\n\tSUB.Z\t%3,%0\n\tXOR\t2,CC";
2743
+               default:
2744
+                       internal_error("%s", "Zip/No usable addsi expansion");
2745
+                       break;
2746
+               }
2747
+       } else {
2748
+               // MOV A+REG,REG
2749
+               switch (GET_CODE(condition)) {
2750
+               case EQ: return "MOV.Z\t%3+%2,%0";
2751
+               case NE: return "MOV.NZ\t%3+%2,%0";
2752
+               case LT: return "MOV.LT\t%3+%2,%0";
2753
+               case GT: return "MOV.GT\t%3+%2,%0";
2754
+               case LE: return "MOV.LT\t%3+%2,%0\n\tMOV.Z\t%3+%2,%0";
2755
+               case GE: return "MOV.GE\t%3+%2,%0";
2756
+               case LTU: return "MOV.C\t%3+%2,%0";
2757
+               case LEU: return "MOV.C\t%3+%2,%0\n\tMOV.Z\t%3+%2,%0";
2758
+               case GEU: return "XOR\t2,CC\n\tMOV.C\t%3+%2,%0\n\tXOR\t2,CC";
2759
+               // Can do a GEU comparison, and then undo on the Zero condition
2760
+               // EXCEPT: with a move instruction, what's there to undo?  We
2761
+               // just clobbered our register!
2762
+               // case GTU: return "XOR\t2,CC\n\tMOV.C\t%3,%0\n\tSUB.Z\t%3,%0XOR\t2,CC";
2763
+               default:
2764
+                       internal_error("%s", "Zip/No usable addsi(reg,reg) expansion");
2765
+                       break;
2766
+               }
2767
+       }
2768
+
2769
+       return "BREAK";
2770
+}
2771
+
2772 103 dgisselq
+static int     zip_memory_move_cost(machine_mode mode, reg_class_t ATTRIBUTE_UNUSED, bool in ATTRIBUTE_UNUSED) {
2773 102 dgisselq
+       int     rv = 14;
2774
+       if ((mode == DImode)||(mode == DFmode))
2775
+               rv += 2;
2776
+       return rv;
2777
+}
2778
+
2779 103 dgisselq
+// #warning "How do we tell the compiler LDI label is expensive as 2 ops"?
2780 117 dgisselq
+static bool    zip_cannot_modify_jumps_p(void) {
2781
+       // Let's try their suggested approach, keeping us from modifying jumps
2782
+       // after reload.  This should also allow our peephole2 optimizations
2783
+       // to adjust things back to what they need to be if necessary.
2784
+       return (reload_completed || reload_in_progress);
2785
+}
2786 122 dgisselq
+
2787
+rtx_insn       *zip_ifcvt_info;
2788
+
2789
+void
2790
+zip_ifcvt_modify_tests(ce_if_block *ce_info ATTRIBUTE_UNUSED, rtx *true_expr, rtx *false_expr) {
2791
+       const bool      dbg = ((ALL_DEBUG_ON)||(false))&&(!ALL_DEBUG_OFF);
2792
+       if (dbg) fprintf(stderr, "IFCVT-MODIFY-TESTS\n");
2793
+       if (*true_expr) switch(GET_CODE(*true_expr)) {
2794
+               case LE:
2795
+               case GTU:
2796
+               case GEU:
2797
+               case LEU:
2798
+                       if (dbg) fprintf(stderr, "TRUE, missing expr\n");
2799
+                       if (dbg) zip_debug_rtx(*true_expr);
2800
+                       *true_expr = NULL_RTX;
2801
+                       break;
2802
+               default: // LT, GT, GTE, LTU, NE, EQ
2803
+                       break;
2804
+       }
2805
+
2806
+       if (*false_expr) switch(GET_CODE(*false_expr)) {
2807
+               case LE:
2808
+               case GTU:
2809
+               case GEU:
2810
+               case LEU:
2811
+                       if (dbg) fprintf(stderr, "FALSE, missing expr\n");
2812
+                       if (dbg) zip_debug_rtx(*false_expr);
2813
+                       *false_expr = NULL_RTX;
2814
+               default:
2815
+                       break;
2816
+       }
2817
+       if ((dbg)&&((!*true_expr)||(!*false_expr)))
2818
+               fprintf(stderr, "IFCVT-MODIFY-TESTS -- FAIL\n");
2819
+}
2820
+
2821
+void
2822
+zip_ifcvt_modify_cancel(struct ce_if_block *ceinfo ATTRIBUTE_UNUSED) {
2823
+/*
2824
+       fprintf(stderr, "IFCVT -- CANCEL\n");
2825
+       zip_ifcvt_info = NULL;
2826
+*/
2827
+}
2828
+
2829
+void
2830
+zip_ifcvt_modify_final(struct ce_if_block *ceinfo ATTRIBUTE_UNUSED) {
2831
+/*
2832
+rtx_insn *insn;
2833
+FOR_BB_INSNS(ceinfo->test_bb, insn)
2834
+       fprintf(stderr, "IFCVT -- FINAL\n");
2835
+       zip_debug_rtx_pfx("FINAL-TEST-BB", insn);
2836
+       zip_ifcvt_info = NULL;
2837
+*/
2838
+}
2839
+
2840
+void
2841
+zip_ifcvt_machdep_init(struct ce_if_block *ceinfo ATTRIBUTE_UNUSED) {
2842
+/*
2843
+       zip_ifcvt_info = NULL;
2844
+       rtx_insn *insn, *ifinsn = NULL;
2845
+       FOR_BB_INSNS(ceinfo->test_bb, insn) {
2846
+               rtx     p;
2847
+               p = single_set(insn);
2848
+               if (!p) continue;
2849
+               if (SET_DEST(p)==pc_rtx) {
2850
+                       ifinsn = insn;
2851
+               }
2852
+               if (!REG_P(SET_DEST(p)))
2853
+                       continue;
2854
+               if (GET_MODE(SET_DEST(p))!=CCmode)
2855
+                       continue;
2856
+               if (REGNO(SET_DEST(p))!=zip_CC)
2857
+                       continue;
2858
+               zip_ifcvt_info = insn;
2859
+       }
2860
+
2861
+       if (zip_ifcvt_info)
2862
+               zip_debug_rtx_pfx("PUTATIVE-CMP",zip_ifcvt_info);
2863
+       if (ifinsn)
2864
+               zip_debug_rtx_pfx("PRIOR-JMP",ifinsn);
2865
+*/
2866
+}
2867
+
2868 127 dgisselq
+int    zip_insn_sets_cc(rtx_insn *insn) {
2869
+       return (get_attr_ccresult(insn)==CCRESULT_SET);
2870
+}
2871
+
2872
+int    zip_is_conditional(rtx_insn *insn) {
2873
+       return (get_attr_conditional(insn)==CONDITIONAL_YES);
2874
+}
2875 102 dgisselq
diff -Naur '--exclude=*.swp' gcc-5.3.0-original/gcc/config/zip/zip.h gcc-5.3.0-zip/gcc/config/zip/zip.h
2876
--- gcc-5.3.0-original/gcc/config/zip/zip.h     1969-12-31 19:00:00.000000000 -0500
2877 127 dgisselq
+++ gcc-5.3.0-zip/gcc/config/zip/zip.h  2016-04-21 16:49:43.785679680 -0400
2878
@@ -0,0 +1,4058 @@
2879 102 dgisselq
+////////////////////////////////////////////////////////////////////////////////
2880
+//
2881
+// Filename:   gcc/config/zip/zip.h
2882
+//
2883
+// Project:    Zip CPU backend for the GNU Compiler Collection
2884
+//
2885
+// Purpose:
2886
+//
2887
+// Creator:    Dan Gisselquist, Ph.D.
2888
+//             Gisselquist Technology, LLC
2889
+//
2890
+////////////////////////////////////////////////////////////////////////////////
2891
+//
2892
+// Copyright (C) 2016, Gisselquist Technology, LLC
2893
+//
2894
+// This program is free software (firmware): you can redistribute it and/or
2895
+// modify it under the terms of  the GNU General Public License as published
2896
+// by the Free Software Foundation, either version 3 of the License, or (at
2897
+// your option) any later version.
2898
+//
2899
+// This program is distributed in the hope that it will be useful, but WITHOUT
2900
+// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
2901
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
2902
+// for more details.
2903
+//
2904
+// You should have received a copy of the GNU General Public License along
2905
+// with this program.  (It's in the $(ROOT)/doc directory, run make with no
2906
+// target there if the PDF file isn't present.)  If not, see
2907
+// <http://www.gnu.org/licenses/> for a copy.
2908
+//
2909
+// License:    GPL, v3, as defined and found on www.gnu.org,
2910
+//             http://www.gnu.org/licenses/gpl.html
2911
+//
2912
+//
2913
+////////////////////////////////////////////////////////////////////////////////
2914
+#ifndef        GCC_ZIP_H
2915
+#define        GCC_ZIP_H
2916
+
2917
+
2918
+//
2919
+//
2920 127 dgisselq
+// Zip CPU configuration defines
2921 102 dgisselq
+//
2922
+//
2923
+#define        ZIP_USER        0        // Assume we are in supervisor mode
2924
+#define        ZIP_MULTIPLY    1       // Assume we have multiply instructions
2925
+#define        ZIP_DIVIDE      1       // Assume we have divide instructions
2926
+#define        ZIP_FPU         0        // Assume we have no floating point instructions
2927
+#define        ZIP_PIPELINED   1       // Assume our instructions are pipelined
2928
+#define        ZIP_VLIW        1       // Assume we have the VLIW feature
2929
+#define        ZIP_ATOMIC      ((ZIP_PIPELINED)&&(ZIP_VLIW))
2930
+#define        ZIP_PIC         0        // Attempting to produce PIC code, with GOT
2931
+#define        ZIP_HAS_DI      1
2932 127 dgisselq
+// Should we use the peephole optimizations?
2933
+#define        ZIP_PEEPHOLE    1       // 0 means no peephole optimizations.
2934 102 dgisselq
+
2935
+// Zip has 16 registers in each user mode.
2936
+//     Register 15 is the program counter (PC)
2937
+//     Register 14 is the condition codes (CC)
2938
+//     Register 13 is the stack pointer   (SP)
2939
+//     Register 12 (may be) the Global Offset Table pointer (GOT)
2940
+//     Register  0 (may be) the return address pointer
2941
+// Registers 16-31 may only be used in supervisor mode.
2942
+#define        is_ZIP_GENERAL_REG(REGNO)       ((REGNO)<13)
2943
+#define        is_ZIP_REG(REGNO)               ((REGNO)<16)
2944
+
2945 103 dgisselq
+// #define     zip_FP_PSEUDO   16
2946
+#define        zip_PC          15
2947
+#define        zip_CC          14
2948
+#define        zip_SP          13
2949
+#define        zip_FP          12
2950
+#define        zip_GOT         11
2951
+#define        zip_AP          10
2952
+#define        zip_R1          1
2953
+#define        zip_R0          0
2954 102 dgisselq
+
2955
+#define        ZIP_FIRST_ARG_REGNO     1
2956
+#define        ZIP_LAST_ARG_REGNO      5
2957 111 dgisselq
+#define        NUM_ARG_REGS            (ZIP_LAST_ARG_REGNO-ZIP_FIRST_ARG_REGNO+1)
2958
+#define        MAX_PARM_REGS           (ZIP_LAST_ARG_REGNO-ZIP_FIRST_ARG_REGNO+1)
2959 102 dgisselq
+
2960
+/* The overall framework of an assembler file */
2961
+
2962
+#define        ASM_COMMENT_START       ";"
2963
+#define        ASM_APP_ON              ""
2964
+#define        ASM_APP_OFF             ""
2965
+
2966
+#define        FILE_ASM_OP             "\t.file\n"
2967
+
2968
+/* Output and Generation of Labels */
2969
+#define        GLOBAL_ASM_OP           "\t.global\t"
2970
+
2971
+#undef BITS_PER_UNIT
2972
+#define        BITS_PER_UNIT   (32)
2973
+
2974
+/* Assembler Commands for Alignment */
2975
+#define        ASM_OUTPUT_ALIGN(STREAM,POWER)  \
2976 127 dgisselq
+       { int pwr = POWER; fprintf(STREAM, "\t.p2align %d\n", (pwr<2)?2:pwr); }
2977 102 dgisselq
+
2978
+
2979
+/* A C compound statement to output to stdio stream STREAM the assembler syntax
2980
+ * for an instruction operand X. */
2981
+#define        PRINT_OPERAND(STREAM, X, CODE)  zip_print_operand(STREAM, X, CODE)
2982
+#define        PRINT_OPERAND_ADDRESS(STREAM, X) zip_print_operand_address(STREAM, X)
2983
+
2984
+/* Passing arguments in registers */
2985
+#define        FUNCTION_VALUE_REGNO_P(REGNO)   ((REGNO)==zip_R1)
2986
+
2987
+/* Define how to find the value returned by a function.  VALTYPE is the data
2988
+ * type of the value (as a tree).  If the precise function being called is known
2989
+ * FUNC is its FUNCTION_DECL; otherwise, FUNC is 0. */
2990
+#define        FUNCTION_VALUE(VALTYPE, FUNC) gen_rtx_REG(TYPE_MODE(VALTYPE), zip_R1)
2991
+
2992
+/* Define how to find the value returned by a library function assuming the
2993
+ * value has mode MODE.
2994
+ */
2995
+#define        LIBCALL_VALUE(MODE)     gen_rtx_REG(MODE, zip_R1)
2996
+
2997
+
2998
+/* STACK AND CALLING */
2999
+
3000
+
3001
+/* Define this macro as a C expression that is nonzero for registers that are
3002
+ * used by the epilogue or the return pattern.  The stack and frame pointer
3003
+ * registers are already assumed to be used as needed.
3004
+ */
3005
+#define        EPILOGUE_USES(R)        (R == RETURN_ADDRESS_REGNUM)
3006
+
3007
+
3008
+/* The best alignment to use in cases where we have a choice. */
3009 127 dgisselq
+#define        FASTEST_ALIGNMENT       BITS_PER_WORD
3010 102 dgisselq
+
3011
+/* MAX_FIXED_MODE_SIZE -- An integer expression for the size in bits of the
3012
+ * largest integer machine mode that should actually be used.  All integer
3013
+ * machine modes of this size and smaller can be used for structures and unions
3014
+ * with the appropriate sizes.  If this macro is undefined,
3015
+ * GET_MODE_BITSIZE(DImode) is assumed.
3016
+ *
3017
+ * ZipCPU -- The default looks good enough for us.
3018
+ */
3019
+
3020
+/* Generate Code for Profiling
3021
+ */
3022
+#define        FUNCTION_PROFILER(FILE,LABELNO)         (abort(), 0)
3023
+
3024
+
3025
+/* A C expression which is nonzero if register number NUM is suitable for use
3026
+ * as an index register in operand addresses.
3027
+ */
3028
+#define        REGNO_OK_FOR_INDEX_P(NUM)       0
3029
+
3030
+
3031
+/* A C compound statement with a conditional 'goto LABEL;' executed if X
3032
+ * (an RTX) is a legitimate memory address on the target machine for a memory
3033
+ * operand of mode MODE.
3034
+ */
3035 111 dgisselq
+/* 17.03 Controlling the Compilation Driver, 'gcc' */
3036
+// DRIVER_SELF_SPECS
3037
+// OPTION_DEFAULT_SPECS
3038
+// CPP_SPEC
3039
+// CPLUSPLUS_CPP_SPEC
3040
+// CC1_SPEC
3041
+// CC1PLUS_SPEC
3042
+/* ASM_SPEC ... A C string constant that tells the GCC driver program options
3043
+ * to pass to the assembler.  It can also specify how to translate options you
3044
+ * give to GCC into options for GCC to pass to the assembler.  See the file
3045
+ * 'sun3.h' for an example of this.
3046
+ *
3047
+ * Do not define thismacro if it does not need to do anything.
3048
+ */
3049
+// #undef      ASM_SPEC
3050
+// ASM_FINAL_SPEC
3051
+// ASM_NEEDS_DASH_FOR_PIPED_INPUT
3052
+
3053
+/* LINK_SPEC ... A C string constant that tells the GCC driver program options
3054
+ * to pass to the linker.  It can also specify how to translate options you give
3055
+ * to GCC into options for GCC to pass to the linker.
3056
+ *
3057
+ * Do not define this macro if it does not need to do anything.
3058
+ */
3059
+
3060
+/* LIB_SPEC ... Another C string constant very much like LINK_SPEC.  The
3061
+ * difference between the two is that LIB_SPEC is used at the end of the
3062
+ * command given to the linker.
3063
+ *
3064
+ * If this macro is not defined, a default is provided that loads the standard
3065
+ * C library from the usual place.  See 'gcc.c'.
3066
+ */
3067
+#undef LIB_SPEC
3068
+// #define     LIB_SPEC        "%{!g:-lc} %{g:-lg} -lzip"
3069
+#define        LIB_SPEC        ""
3070
+
3071
+/* LIBGCC_SPEC ... Another C string constant that tells the GCC driver program
3072
+ * hoow and when to place a reference to 'libgcc.a' into the linker command
3073
+ * line.  This constant is placed both before and after the value of LIB_SPEC.
3074
+ *
3075
+ * If this macro is not defined, the GCC driver provides a default that passes
3076
+ * the string '-lgcc' to the linker.
3077
+ */
3078
+#undef LIBGCC_SPEC
3079
+#define        LIBGCC_SPEC     ""
3080
+
3081
+/* REAL_LIBGCC_SPEC ... By default, if ENABLE_SHARED_LIBGCC is defined, the
3082
+ * LIBGCC_SPEC is not directly used by the driver program but is instead
3083
+ * modified to refer to different versions of 'libgcc.a' depending on the
3084
+ * values of the command line flags '-static', '-shared', '-static-libgcc',
3085
+ * and '-shared-libgcc'.  On targets where these modifications are
3086
+ * inappropriate, define REAL_LIBGCC_SPEC instead.  REAL_LIBGCC_SPEC tells the
3087
+ * driver how to place a reference to 'libgcc' on the link command line, but
3088
+ * unlike LIBGCC_SPEC, it is used unmodified.
3089
+ */
3090
+#define        REAL_LIBGCC_SPEC        ""
3091
+
3092
+// USE_LD_AS_NEEDED
3093
+// LINK_EH_SPEC
3094
+
3095
+/* STARTFILE_SPEC ... Another C string constant used much like LINK_SPEC.  The
3096
+ * difference between the two is that STARTFILE_SPEC is used at the very
3097
+ * beginning of the command given to the linker.
3098
+ *
3099
+ * If this macro is not defined, a default is provided that loads the standard
3100
+ * C startup file from the usual place.  See 'gcc.c'
3101
+ */
3102
+#undef STARTFILE_SPEC
3103
+#define        STARTFILE_SPEC  ""
3104
+
3105
+/* ENDFILE_SPEC ... Another C string constant used much like LINK_SPEC.  The
3106
+ * difference between the two is that ENDFILE_SPEC is used at the very end
3107
+ * of the command given to the linker.
3108
+ *
3109
+ * Do not define this macro if it does not do anything.
3110
+ */
3111
+// #undef      ENDFILE_SPEC
3112
+// #define     ENDFILE_SPEC    ""
3113
+
3114
+// THREAD_MODEL_SPEC
3115
+// SYSROOT_SUFFIX_SPEC
3116
+// SYSROOT_HEADERS_SUFFIX_SPEC
3117
+// EXTRA_SPECS
3118
+// LINK_LIBGCC_SPECIAL_1
3119
+// LINK_GCC_C_SEQUENCE_SPEC
3120
+// LINK_COMMAND_SPEC
3121
+// TARGET_ALWAYS_STRIP_DOTDOT
3122
+// MULTILIB_DEFAULTS
3123
+// RELATIVE_PREFIX_NOT_LINKDIR
3124
+// MD_EXEC_PREFIX
3125
+// STANDARD_STARTFILE_PREFIX
3126
+// STANDARD_STARTFILE_PREFIX_1
3127
+// STANDARD_STARTFILE_PREFIX_2
3128
+// MD_STARTFILE_PREFIX
3129
+// MD_STARTFILE_PREFIX_1
3130
+// INIT_ENVIRONMENT
3131
+// LOCAL_INCLUDE_DIR
3132
+#undef LOCAL_INCLUDE_DIR
3133
+
3134
+// NATIVE_SYSTEM_HEADER_COMPONENT
3135
+// INCLUDE_DEFAULTS
3136
+
3137 102 dgisselq
+/* 17.03 Run-time Target Specification */
3138
+
3139
+/* TARGET_CPU_CPP_BUILTINS() ... This function-like macro expands to a block of
3140
+ * code that defines built-in preprocessor macros and assertions for the target
3141
+ * CPU, using the functions builtin_define, builtin_define_std, and
3142
+ * builtin_assert.  When the front end calls this macro it provides a trailing
3143
+ * semicolon, and since it has finished command line option proccessing your
3144
+ * code can use those results freely.
3145
+ *
3146
+ * ZipCPU --- We should probably capture in this macro what capabilities the
3147
+ * command line parameters we've been given indicate that our CPU has.  That
3148
+ * way, code can be adjusted depending upon the CPU's capabilities.
3149
+ */
3150
+#define        TARGET_CPU_CPP_BUILTINS()                       \
3151
+       { builtin_define("__ZIPCPU__");                 \
3152
+       if (ZIP_FPU) builtin_define("__ZIPFPU__");      \
3153
+       if (ZIP_ATOMIC) builtin_define("__ZIPATOMIC__");        \
3154
+       }
3155
+       // If (zip_param_has_fpu)  builtin_define("__ZIPFPU__");
3156
+       // If (zip_param_has_div)  builtin_define("__ZIPDIV__");
3157
+       // If (zip_param_has_mpy)  builtin_define("__ZIPMPY__");
3158
+       // If (zip_param_has_lock) builtin_define("__ZIPLOCK__");
3159
+       // If (zip_param_supervisor) builtin_define("__ZIPUREGS__");
3160
+       // If (we support int64s) builtin_define("___int64_t_defined");
3161
+
3162
+/* TARGET_OS_CPP_BUILTINS() ... Similarly to TARGET_CPU_CPP_BUILTINS but this
3163
+ * macro is optional and is used for the target operating system instead.
3164
+ */
3165
+
3166
+/* Option macros: (we need to define these eventually ... )
3167
+ *
3168
+ *     TARGET_HANDLE_OPTION
3169
+ *     TARGET_HANDLE_C_OPTION
3170
+ *     TARGET_OBJ_CONSTRUCT_STRING_OBJECT
3171
+ *     TARGET_OBJ_DECLARE_UNRESOLVED_CLASS_REFERENCE
3172
+ *     TARGET_OBJ_DECLARE_CLASS_DEFINITION
3173
+ *     TARGET_STRING_OBJECT_REF_TYPE_P
3174
+ *     TARGET_CHECK_STRING_OBJECT_FORMAT_ARG
3175
+ *     TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE(VOID)
3176
+ *     C_COMMON_OVERRIDE_OTPTIONS
3177
+ *     TARGET_OPTION_OPTIMIZATION_TABLE
3178
+ *     TARGET_OPTION_INIT_STRUCT
3179
+ *     TARGET_OPTION_DEFAULT_PARAMS
3180
+ */
3181
+
3182
+/* SWITCHABLE_TARGET
3183
+ *
3184
+ * Zip CPU doesn't need this, so it defaults to zero.  No need to change it
3185
+ * here.
3186
+ */
3187
+
3188
+/* TARGET_FLOAT_EXCEPTIONS_ROUNDING_SUPPORTED_P(VOID) ... Returns true if the
3189
+ * target supports IEEE 754 floating-point exceptions and rounding modes, false
3190
+ * otherwise.  This is intended to relate to the float and double types, but not
3191
+ * necessarily "long double".  By default, returns true if the adddf3
3192
+ * instruction pattern is available and false otherwise, on the assumption that
3193
+ * hardware floating point supports exceptions and rounding modes but software
3194
+ * floating point does not.
3195
+ *
3196
+ * ZipCPU floating point is barely going to be functional, I doubt it will
3197
+ * support all of these bells and whistles when full functionality is even
3198
+ * achieved.  Therefore, we won't support these modes.  However, we can't just
3199
+ * set this to zero, so let's come back to this.
3200
+ */
3201
+// #warning "Wrong answer encoded to date"
3202 103 dgisselq
+// #undef      TARGET_FLOAT_EXCEPTIONS_ROUNDING_SUPPORTED_P
3203 102 dgisselq
+// #define     TARGET_FLOAT_EXCEPTIONS_ROUNDING_SUPPORTED_P(X) 0
3204
+
3205
+/* 17.04 Defining data structures for per-function information */
3206
+
3207
+/* INIT_EXPANDERS ... Macro called to initialize any target specific
3208
+ * information.  This macro is called once per function, before generation of
3209
+ * any RTL has begun.  The intention is to allow the initialization of the
3210
+ * function pointer init_machine_status.
3211
+ */
3212
+// #warning "I may need to define this to handle function return addresses ..."
3213
+
3214
+/* 17.05 Storage Layout */
3215
+
3216
+/* Storage Layout */
3217
+#define        BITS_BIG_ENDIAN         0        // MSB has highest number
3218
+#define        BYTES_BIG_ENDIAN        1       // 1 if MSB is lowest number
3219
+#define        WORDS_BIG_ENDIAN        1       // 1 if MSW is lowest number
3220
+#define        FLOAT_WORDS_BIG_ENDIAN  1
3221
+#define        BITS_PER_WORD           32
3222
+// #define     MAX_BITS_PER_WORD       // defaults to BITS_PER_WORD
3223
+#define        UNITS_PER_WORD          1       // Storage units in a word, pwr of 2:1-8
3224
+#define        MIN_UNITS_PER_WORD      1       // Default is UNITS_PER_WORD
3225
+/* POINTER_SIZE ... Width of a pointer in bits.  You must specify a value no
3226
+ * wider than the width of Pmode.  If it is not equal to the width of Pmode,
3227
+ * you must define POINTERS_EXTEND_UNSIGNED. If you do not specify a value the
3228
+ * default is BITS_PER_WORD.
3229
+ *
3230
+ * ZipCPU --- All of our pointers are 32-bits, the width of our address bus.
3231
+ */
3232
+#define        POINTER_SIZE            32      // Ptr width in bits
3233
+/* POINTERS_EXTEND_UNSIGNED ... A C expression that determines how pointers
3234
+ * should be extended from ptr_mode to either Pmode or word_mode.  It is greater
3235
+ * than zero if pointers should be zero-extended, zero if they should be sign
3236
+ * extended, and negative if some other conversion is needed.  In the last case,
3237
+ * the extension is done by the target's ptr_extend instruction.
3238
+ *
3239
+ * You need not define this macro if the ptr_mode, Pmode, and word_mode are all
3240
+ * the same width.
3241
+ *
3242
+ * ZipCPU --- While we shouldn't need this, QImode and HImode have the same
3243
+ * number of bits as SImode.  Therefore, one might wish to convert between the
3244
+ * two.  Hence, we specify how we would do that here.
3245
+ */
3246 127 dgisselq
+#define        POINTERS_EXTEND_UNSIGNED        1
3247 102 dgisselq
+
3248
+/* PROMOTE_MODE(m,unsignedp,type) ... A macro to update m and unsignedp when an
3249
+ * object whose type is type and which has he specified mode and signedness is
3250
+ * to be stored in a register.  This macro is only called when type is a scalar
3251
+ * type.
3252
+ *
3253
+ * On most RISC machines, which only have operations that operate on a full
3254
+ * register, define this macro to set m to word_mode if m is an integer mode
3255
+ * narrower than BITS_PER_WORD.  In most cases, only integer modes should be
3256
+ * widened because wider precision floating-point operations are usually more
3257
+ * expensive than their narrower counterparts.
3258
+ *
3259
+ * For most machines, the macro definition does not change unsigndep.  However,
3260
+ * some machines, have instructions that preferentially handle either signed or
3261
+ * unsigned quantities of certain modes.  For example, on the DEC Alpha, 32-bit
3262
+ * loads from memory and 32-bit add instructions sign-extend the result to
3263
+ * 64-bits. On such machines, set unsignedp according to which kind of extension
3264
+ * is more efficient.
3265
+ *
3266
+ * Do not define this macro if it would never modify m.
3267
+ *
3268
+ * ZipCPU --- We need to always (if possible) promote everything to SImode where
3269
+ * we can handle things.  HImode and QImode just don't make sense on this CPU.
3270
+ */
3271
+#define        PROMOTE_MODE(M,U,T)     if ((GET_MODE_CLASS(M)==MODE_INT)&&(GET_MODE_SIZE(M)<2)) (M)=SImode;
3272
+
3273
+// TARGET_PROMOTE_FUNCTION_MODE
3274
+/* PARM_BOUNDARY ... Normal alignment required for function parameters on the
3275
+ * stack, in bits.  All stack parameters receive at least this much alignment
3276
+ * regardless of data type.  On most machines, this is the same as the size of
3277
+ * an integer.
3278
+ */
3279
+#define        PARM_BOUNDARY   32
3280
+
3281
+/* STACK_BOUNDARY ... Define this macro to the minimum alignment enforced by
3282
+ * hardware for the stack pointer on this machine.  The definition is a C
3283
+ * expression for the desired alignment (measured in bits).  This value is used
3284
+ * as a default if PREFERRED_STACK_BOUNDARY is not defined.  On most machines,
3285
+ * this should be the same as PARM_BOUNDARY.
3286
+ */
3287
+#define        STACK_BOUNDARY  PARM_BOUNDARY
3288
+
3289
+/* PREFERRED_STACK_BOUNDARY ... Define this ... */
3290 127 dgisselq
+#define        PREFERRED_STACK_BOUNDARY        STACK_BOUNDARY
3291 102 dgisselq
+
3292 127 dgisselq
+/* INCOMING_STACK_BOUNDARY ... Define this macro if the incoming stack boundary
3293
+ * may be different from PREFERRED_STACK_BOUNDARY.  This macro must evaluate
3294
+ * to a value equal to or larger than STACK_BOUNDARY.
3295 102 dgisselq
+ */
3296 127 dgisselq
+#define        INCOMING_STACK_BOUNDARY STACK_BOUNDARY
3297 102 dgisselq
+
3298
+/* FUNCTION_BOUNDARY ... Alignment required for a function entry point, in bits.
3299
+ */
3300
+#define        FUNCTION_BOUNDARY       32
3301
+
3302
+/* BIGGEST_ALIGNMENT ... Biggest alignment that any data type can require on
3303
+ * this machine, in bits.  Note that this is not the biggest alignment that is
3304
+ * supported, just the biggest alignment that, when violated, may cause a fault.
3305
+ */
3306
+#define BIGGEST_ALIGNMENT      32
3307
+
3308 127 dgisselq
+/* MALLOC_ABI_ALIGNMENT
3309
+ */
3310
+
3311
+/* ATTRIBUTE_ALIGNED_VALUE
3312
+ */
3313
+
3314 102 dgisselq
+/* MINIMUM_ATOMIC_ALIGNMENT ... If defined, the smallest alignment, that can be
3315
+ * given to an object that can be referenced in one operation, without
3316
+ * disturbing any nearby object.  Normally, this is BITS_PER_UNIT, but may be
3317
+ * larger on machines that don't have byte or halfword store operations.
3318
+ */
3319
+#define        MINIMUM_ATOMIC_ALIGNMENT        BITS_PER_UNIT
3320
+
3321 127 dgisselq
+/* BIGGEST_FIELD_ALIGNMENT ... Biggest alignment that any structure or union
3322
+ * field can require on this machine, in bits.  If defined, this overrides
3323
+ * BIGGEST_ALIGNMENT for structure and union fields only, unless the field
3324
+ * alignment has been set by the __attribute__((aligned(n))) construct.
3325
+ */
3326
+#define        BIGGEST_FIELD_ALIGNMENT BITS_PER_UNIT
3327
+
3328
+/* ADJUST_FIELD_ALIGN
3329
+ */
3330
+#define        ADJUST_FIELD_ALIGN(A,B) BITS_PER_WORD
3331
+
3332
+/* MAX_STACK_ALIGNMENT
3333
+ */
3334
+#define        MAX_STACK_ALIGNMENT     BITS_PER_WORD
3335
+
3336
+/* MAX_OFILE_ALIGNMENT
3337
+ */
3338
+
3339
+/* DATA_ALIGNMENT(TYPE, BASIC-ALIGN) ... If defined, a C expression to compute
3340
+ * the alignment for a variable in the static store.  TYPE is the data type, and
3341
+ * BASIC-ALIGN is the alignment that the object would ordinarily have.  The
3342
+ * value of this macro is used instead of that alignment to align the object.
3343
+ *
3344
+ * If this macro is not defined, then BASIC-ALIGN is used.
3345
+ *
3346
+ * ZipCPU -- in hindsight, if this macro is not defined then the compiler is
3347
+ * broken.  So we define it to be our fastest alignment, or 32-bits.
3348
+ */
3349
+#define        DATA_ALIGNMENT(TYPE, ALIGN)     BITS_PER_WORD
3350
+
3351
+
3352
+/* DATA_ABI_ALIGNMENT(TYPE,BASIC-ALIGN)
3353
+ */
3354
+
3355
+/* CONSTANT_ALIGNMENT(CONST, BASIC-ALIGN) ... If defined, a C expression to
3356
+ * compute the alignment given to a constant that is being placed in memory.
3357
+ * CONST is the constant and BASIC-ALIGN is the alignment that the object
3358
+ * would ordinarily have.  The value of this macro is used instead of that
3359
+ * alignment to align the object.
3360
+ *
3361
+ * If this macro is not defined, then BASIC-ALIGN is used.
3362
+ *
3363
+ * ZipCPU -- in hindsiht, if this macro is not defined then the compiler is
3364
+ * broken.  We'll define it as above.
3365
+ *
3366
+ */
3367
+#define        CONSTANT_ALIGNMENT(EXP, ALIGN)  BITS_PER_WORD
3368
+
3369
+/* LOCAL_ALIGNMENT(TYPE,BASIC-ALIGN) ... If defined ...
3370
+ */
3371
+#define        LOCAL_ALIGNMENT(TYP,ALIGN)      BITS_PER_WORD
3372
+
3373
+/* TARGET_VECTOR_ALIGNMENT
3374
+ */
3375
+
3376
+/* STACK_SLOT_ALIGNMENT
3377
+ */
3378
+#define        STACK_SLOT_ALIGNMENT(T,M,B)     BITS_PER_WORD
3379
+
3380
+/* LOCAL_DECL_ALIGNMEN(DECL)
3381
+ */
3382
+#define        LOCAL_DECL_ALIGNMENT(DECL)      BITS_PER_WORD
3383
+
3384
+/* MINIMUM_ALIGNMENT
3385
+ */
3386
+#define        MINIMUM_ALIGNMENT(EXP,MOD,ALIGN)        BITS_PER_WORD
3387
+
3388
+/* EMPTY_FIELD_BOUNDARY
3389
+ * Alignment of field after 'int : 0' in a structure.
3390
+ */
3391
+#define        EMPTY_FIELD_BOUNDARY    BITS_PER_WORD
3392
+
3393
+/* STRUCTURE_SIE_BOUNDARY
3394
+ * ZipCPU -- Every structures size must be a multiple of 32-bits.
3395
+ */
3396
+#define        STRUCTURE_SIZE_BOUNDARY BITS_PER_WORD
3397
+
3398 102 dgisselq
+/* STRICT_ALIGNMENT ... Set this nonzero if move instructions will actually
3399
+ * fail to work when given unaligned data.  If instructions will merely go
3400
+ * slower in that case, define this macro as 0.
3401 125 dgisselq
+ *
3402
+ * ZipCPU -- Since we have defined our smallest addressable unit to be a 32-bit
3403
+ * word (one byte, on our machine), and since reading any amount of 32-bit words
3404
+ * is easy, then there really are no instructions that will ever fail.
3405 102 dgisselq
+ */
3406 125 dgisselq
+#define        STRICT_ALIGNMENT        0
3407 102 dgisselq
+
3408 127 dgisselq
+/* PCC_BITFIELD_TYPE_MATTERS -- define this if you wish to imitate the the way
3409
+ * other C compilers handle alignment of bit-fields and the structures that
3410
+ * contain them.
3411
+ *
3412
+ * The behavior is that the type written for a named bit-field (int, short, or
3413
+ * other integer type) imposes an alignment for the entire structure, as if the
3414
+ * structure really did contain an ordinary field of that type.  In addition,
3415
+ * the bit-field is placed within the structure so that it would fit within
3416
+ * such a field, not crossing a boundary for it.
3417
+ *
3418
+ * Thus, no most machines, a named bit-field whose type is written as int would
3419
+ * not cross a four-byte boundary, and would force four-byte alignment for the
3420
+ * whole structure.  (The alignment used may not be four bytes; it is controlled
3421
+ * by other alignment parameters.)
3422
+ *
3423
+ * An unnamed bit-field will not affect the alignment of the containing
3424
+ * structure.
3425
+ *
3426
+ * If the macro is defined, its definition should be a C expression, a non
3427
+ * zero value for the expression enables this behavior.
3428
+ * Look at the fundamental type that is used for a bit-field and use that to
3429
+ * impose alignment on the enclosing structure.  struct s{int a:8}; should
3430
+ * have the same alignment as 'int', not 'char'.
3431
+ */
3432
+#undef PCC_BITFIELD_TYPE_MATTERS
3433
+#define        PCC_BITFIELD_TYPE_MATTERS       0
3434
+
3435 102 dgisselq
+/* MAX_FIXED_MODE_SIZE ... An integer expression for the size in bits of the
3436
+ * largest integer machine mode that should actually be used.  All integer
3437
+ * machine modes of this size or smaller can be used for structures and unions
3438
+ * with the appropriate sizes.  If this macro is undefined,
3439
+ * GET_MODE_BITSIZE(DImode) is assumed.
3440
+ *
3441
+ * ZipCPU ... Get_MOD_BITSIZE(DImode) will be 64, and this is really not the
3442
+ * size on bits of the largest integer machine mode.  However, that's the case
3443
+ * with most DI implementations: A long is two words, spliced together.  We'd
3444
+ * like to support that eventually, but we need to get there.  Hence, let's use
3445
+ * compile time flag (ZIP_HAS_DI) that we can enable when we're ready.
3446
+ */
3447
+#if (ZIP_HAS_DI != 0)
3448
+#define        MAX_FIXED_MODE_SIZE     64
3449
+#else
3450
+#define        MAX_FIXED_MODE_SIZE     32
3451
+#endif
3452
+
3453
+
3454
+/* 17.06 Layout of Source Language Data Types */
3455
+
3456
+#undef CHAR_TYPE_SIZE
3457
+#undef SHORT_TYPE_SIZE
3458
+#undef INT_TYPE_SIZE
3459
+#undef LONG_TYPE_SIZE
3460
+#undef LONG_LONG_TYPE_SIZE
3461
+//
3462
+#define        CHAR_TYPE_SIZE  32
3463
+#define        SHORT_TYPE_SIZE 32
3464
+#define        INT_TYPE_SIZE   32
3465
+#define        LONG_TYPE_SIZE  32
3466
+#define        LONG_LONG_TYPE_SIZE     64
3467
+// BOOL_TYPE_SIZE defaults to CHAR_TYPE_SIZE
3468
+#undef FLOAT_TYPE_SIZE
3469
+#undef DOUBLE_TYPE_SIZE
3470
+#undef LONG_DOUBLE_TYPE_SIZE
3471
+#define        FLOAT_TYPE_SIZE         32
3472
+#define        DOUBLE_TYPE_SIZE        FLOAT_TYPE_SIZE // Zip CPU doesn't support dbls
3473
+#define        LONG_DOUBLE_TYPE_SIZE   64      // This'll need to be done via emulation
3474
+// SHORT_FRAC_TYPE_SIZE
3475
+// LONG_FFRACT_TYPE_SIZE
3476
+// LONG_LONG_FRACT_TIME_SIZE
3477
+#undef SHORT_ACCUM_TYPE_SIZE
3478
+#undef ACCUM_TYPE_SIZE
3479
+#undef LONG_ACCUM_TYPE_SIZE
3480
+#define        SHORT_ACCUM_TYPE_SIZE   SHORT_TYPE_SIZE
3481
+#define        ACCUM_TYPE_SIZE         INT_TYPE_SIZE
3482
+#define        LONG_ACCUM_TYPE_SIZE    LONG_TYPE_SIZE
3483
+
3484
+/* LIBGCC2_GNU_PREFIX ... This macro corresponds to the TARGET_GNU_PREFIX target
3485
+ * hook and should be defined if that hook is overriden to be true.  It causes
3486
+ * function names in libgcc to be changed to use a __gnu_ prefix for their name
3487
+ * rather than the default __.  A port which uses this macro should also arrange
3488
+ * to use t-gnu-prefix in the libgcc config.host.
3489
+ *
3490
+ * ZipCPU -- I see no reason to define and therefore change this behavior.
3491
+ */
3492
+
3493
+/* TARGET_FLT_EVAL_METHOD ... A C expression for the value for FLT_EVAL_METHOD
3494
+ * in float.h,, assuming, if applicable, that the floating-point control word
3495
+ * is in its default state.  If you do not define this macro the value of
3496
+ * FLT_EVAL_METHOD will be zero.
3497
+ *
3498
+ * ZipCPU --- ???
3499
+ */
3500
+
3501
+/* WIDEST_HARDWARE_FP_SIZE ... A C expression for the size in bits of the widest
3502
+ * floating-point format supported by the hardware.  If you define this macro,
3503
+ * you must specify a value less than or equal to the value of LONG_DOUBLE_...
3504
+ * If you do not define this macro, the value of LONG_DOUBLE_TYPE_SIZE is the
3505
+ * default.
3506
+ *
3507
+ * ZipCPU supports 32-bit IEEE floats--IF THE SUPPORT IS COMPILED IN!  This
3508
+ * really needs to be determined, then, based upon a compile time parameter
3509
+ * where the one compiling the code states whether or not the H/W even has
3510
+ * floating point support.
3511
+ *
3512
+ * For now, we'll assume it does--but once we implement GCC parameters, we'll
3513
+ * need to change this.
3514
+ */
3515
+#undef WIDEST_HARDWARE_FP_SIZE
3516
+// #warning "Definition needs to change if no FPU present"
3517
+#define        WIDEST_HARDWARE_FP_SIZE FLOAT_TYPE_SIZE
3518
+
3519
+/* DEFAULT_SIGNED_CHAR ... An expression whose value is 1 or 0, according to
3520
+ * whether the type char should be signed or unsigned by default.  The user
3521
+ * can always override this default with the options -fsigned-char and
3522
+ * -funsigned-char.
3523
+ *
3524
+ * ZipCPU--let's go with the default behavior.
3525
+ */
3526
+#define        DEFAULT_SIGNED_CHAR     1
3527
+
3528
+/* TARGET_DEFAULT_SHORT_ENUMS(VOID) ... This target hook should return true if
3529 103 dgisselq
+ * the compiler should give an enum type only as many bytes as it takes to
3530 102 dgisselq
+ * represent the range of possible values of that type.  It should return
3531
+ * false if all enum types should be allocated like int.
3532
+ *
3533
+ * The default is to return false.  This is what the ZipCPU needs, so we won't
3534
+ * override it.
3535
+ */
3536
+
3537
+/* SIZE_TYPE ... A C expression for a string describing the name of the data
3538
+ * type to use for size values.  The typedef name size_t is defined using the
3539
+ * contents of the string.
3540
+ *
3541
+ * If you don't define this macro, the default is "long unsigned int".  Since
3542
+ * on the ZipCPU this is a 32-bit number, and all ZipCPU values are 32-bits,
3543
+ * the default seems perfect for us.
3544
+ */
3545
+#define        SIZE_TYPE       "unsigned int"
3546
+
3547
+/* SIZETYPE ... GCC defines internal types () for expressions dealing with size.
3548
+ * This macro is a C expression for a string describing the name of the data
3549
+ * type from which the precision of sizetype is extracted.  The string has the
3550
+ * same restrictions as SIZE_TYPE string.  If you don't define this macro, the
3551
+ * default is SIZE_TYPE --- which seems good enough for us.
3552
+ */
3553
+
3554
+/* PTRDIFF_TYPE ... A C expression for a string describing the name of the data
3555 127 dgisselq
+ * type to use for the result of subtracting two pointers.  The typedef name
3556 102 dgisselq
+ * ptrdiff_t is defined using the contents of the string.  See SIZE_TYPE for
3557
+ * more information.
3558
+ *
3559
+ * The default is "long int" which for the ZipCPU is 32-bits---still good enough
3560
+ * for us.
3561
+ */
3562
+#define        PTRDIFF_TYPE    "int"
3563
+
3564
+/* WCHAR_TYPE ... A C expression for a string describing the name of the data
3565
+ * type to use for wide characters.  The typedef name wchar_t is defined using
3566
+ * the contents of  the string.  If you don't define this macro, the default is
3567
+ * 'int'--good enough for ZipCPU.
3568
+ */
3569
+
3570
+/* WCHAR_TYPE_SIZE ... A C expression for the size in bits of the data type for
3571
+ * wide characters.  This is used in cpp, which cannot make use of WCHAR_TYPE.
3572
+ */
3573
+#undef WCHAR_TYPE_SIZE
3574
+#define        WCHAR_TYPE_SIZE 32
3575
+
3576
+/* WINT_TYPE ... A C expression for a string describing the name of the data
3577
+ * type to use for wide characters passed to printf and returned from getwc.
3578
+ * The typedef name wint_t is defined using the contents of the string.  See
3579
+ *
3580 103 dgisselq
+ * ZipCPU -- If you don't define this macro, the default is "unsigned int"--also
3581
+ * best for us again.
3582 102 dgisselq
+ */
3583
+
3584
+/* INTMAX_TYPE ... A C expression for a string describing the name of the
3585
+ * data type that can represent any value of any standard or extended signed
3586
+ * integer type.  The typedef name intmax_t is defined using the contents of
3587
+ * the string.
3588
+ *
3589
+ * If you don't define this macro, the default is the first of "int", "long int"
3590
+ * or "long long int" that has as much precision as "long long int".
3591
+ */
3592
+
3593
+/* UINTMAX_TYPE ... same as INTMAX_TYPE, but for unsigned
3594
+ */
3595
+
3596
+#undef SIG_ATOMIC_TYPE
3597
+#if (ZIP_ATOMIC != 0)
3598
+#define        SIG_ATOMIC_TYPE "int"
3599
+#else
3600
+#define        SIG_ATOMIC_TYPE NULL    // We have no atomic types, but registers
3601
+#endif
3602
+#undef INT8_TYPE
3603
+#define        INT8_TYPE               NULL    // We have no 8-bit integer type
3604
+#undef INT16_TYPE
3605
+#define        INT16_TYPE              NULL
3606
+#undef INT32_TYPE
3607
+#define        INT32_TYPE              "int"
3608
+#undef UINT8_TYPE
3609
+#define        UINT8_TYPE              NULL
3610
+#undef UINT16_TYPE
3611
+#define        UINT16_TYPE             NULL
3612
+#undef UINT32_TYPE
3613
+#define        UINT32_TYPE             "unsigned int"
3614
+#undef INT_LEAST8_TYPE
3615
+#define        INT_LEAST8_TYPE         "int"
3616
+#undef INT_LEAST16_TYPE
3617
+#define        INT_LEAST16_TYPE        "int"
3618
+#undef INT_LEAST32_TYPE
3619
+#define        INT_LEAST32_TYPE        "int"
3620
+#undef UINT_LEAST8_TYPE
3621
+#define        UINT_LEAST8_TYPE        "unsigned int"
3622
+#undef UINT_LEAST16_TYPE
3623
+#define        UINT_LEAST16_TYPE       "unsigned int"
3624
+#undef UINT_LEAST32_TYPE
3625
+#define        UINT_LEAST32_TYPE       "unsigned int"
3626
+#undef INT_FAST8_TYPE
3627
+#define        INT_FAST8_TYPE          "int"
3628
+#undef INT_FAST16_TYPE
3629
+#define        INT_FAST16_TYPE         "int"
3630
+#undef INT_FAST32_TYPE
3631
+#define        INT_FAST32_TYPE         "int"
3632
+#undef UINT_FAST8_TYPE
3633
+#define        UINT_FAST8_TYPE         "unsigned int"
3634
+#undef UINT_FAST16_TYPE
3635
+#define        UINT_FAST16_TYPE        "unsigned int"
3636
+#undef UINT_FAST32_TYPE
3637
+#define        UINT_FAST32_TYPE        "unsigned int"
3638
+#undef INTPTR_TYPE
3639
+#define        INTPTR_TYPE             "unsigned int"
3640
+#undef UINTPTR_TYPE
3641
+#define        UINTPTR_TYPE            "unsigned int"
3642
+
3643
+#undef INT64_TYPE
3644
+#undef UINT64_TYPE
3645
+#undef INT_LEAST64_TYPE
3646
+#undef UINT_LEAST64_TYPE
3647
+#undef INT_FAST64_TYPE
3648
+#undef UINT_FAST64_TYPE
3649
+
3650
+#if (ZIP_HAS_DI != 0)
3651
+#define        INT64_TYPE              "long int"
3652
+#define        UINT64_TYPE             "long unsigned int"
3653
+#define        INT_LEAST64_TYPE        "long int"
3654
+#define        UINT_LEAST64_TYPE       "long unsigned int"
3655
+#define        INT_FAST64_TYPE         "long int"
3656
+#define        UINT_FAST64_TYPE        "long unsigned int"
3657
+#else
3658
+#define        INT64_TYPE              NULL
3659
+#define        UINT64_TYPE             NULL
3660
+#define        INT_LEAST64_TYPE        NULL
3661
+#define        UINT_LEAST64_TYPE       NULL
3662
+#define        INT_FAST64_TYPE         NULL
3663
+#define        UINT_FAST64_TYPE        NULL
3664
+#endif
3665
+
3666
+#define        TARGET_PTRMEMFUNC_VBI_LOCATION  ptrmemfunc_vbit_in_pfn
3667
+
3668
+
3669
+/* 17.07 Register Usage / Register definitions */
3670
+
3671
+/* FIRST_PSEUDO_REGISTER ... Number of hardware registers known to the compiler.
3672
+ * They receive numbers 0 through FIRST_PSEUDO_REGISTER-1; thus the first
3673
+ * pseudo register's numbrer really is assigned the number
3674
+ * FIRST_PSEUDO_REGISTER.
3675
+ *
3676
+ * ZipCPU---There are 16 registers in the ZipCPU, numbered 0-15 with the CC
3677
+ * and PC register being numbered 14 and 15 respectively.  Therefore, the
3678
+ * compiler can take register number 16 and above and do whatever it wants
3679
+ * with it.
3680
+ */
3681
+#ifdef DEFINE_USER_REGS
3682 103 dgisselq
+#  define      FIRST_PSEUDO_REGISTER   32
3683 102 dgisselq
+#else
3684 103 dgisselq
+#  ifdef       zip_FP_PSEUDO
3685
+#    define    FIRST_PSEUDO_REGISTER   (zip_FP_PSEUDO+1)
3686
+#  else
3687
+#    define    FIRST_PSEUDO_REGISTER   16
3688
+#  endif
3689 102 dgisselq
+#endif
3690
+
3691
+/* FIXED_REGISTERS ... An initializer that says which registers are used for
3692
+ * fixed purposes all throughout the compiled code and are therefore not
3693
+ * available for general allocation.  These would include the stack pointer, the
3694
+ * frame pointer (except on machines where that can be used as a general
3695
+ * register when no frame pointer is needed), the program counter on machines
3696
+ * where that is considered one of the addressable registers, and any other
3697
+ * numbered register with a standard use.
3698
+ *
3699
+ * This information is expressed as a sequence of numbers, separated by commas,
3700
+ * and surrounded by braces.  The nth number is 1 if register n is fixed, 0
3701
+ * otherwise.
3702
+ *
3703
+ * For the Zip CPU, we have three fixed registers that are not available for
3704
+ * general allocation:
3705
+ *
3706
+ *     SP      The stack pointer
3707
+ *     CC      The condition codes and CPU state register
3708
+ *     PC      The program counter
3709
+ *
3710
+ * Other registers, such as FP (the frame pointer) or GBL (the global offset
3711
+ * table pointer) are registers that we hope will not be so fixed.
3712
+ */
3713 127 dgisselq
+#ifdef DEFINE_USER_REGS
3714
+#  define      FIXED_REGISTERS         { 0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,   1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 }
3715 103 dgisselq
+#else
3716 127 dgisselq
+#  ifdef       zip_FP_PSEUDO
3717
+#    define    FIXED_REGISTERS         { 0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1 }
3718
+#  else
3719
+#    define    FIXED_REGISTERS         { 0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1 }
3720
+#  endif
3721 103 dgisselq
+#endif
3722 102 dgisselq
+
3723
+/* CALL_USED_REGISTERS ... like FIXED_REGISTERS but has 1 for each register
3724
+ * that is clobbered (in general) by function calls as well as for fixed
3725
+ * registers.  This macro therefore identifies the registers that are not
3726
+ * available for general allocation of values that must live across function
3727
+ * calls.
3728
+ *
3729
+ * If a register has 0 in CALL_USED_REGISTERS, the compiler automatically saves
3730
+ * it on function entry and restores it on function exit, if the register is
3731
+ * used within the function.
3732
+ *
3733
+ * On the Zip CPU, we must save R0 (the return address), and (let's pick) any
3734
+ * register above R5.
3735
+ */
3736 127 dgisselq
+#ifdef DEFINE_USER_REGS
3737
+#  define      CALL_USED_REGISTERS     { 0,1,1,1,1,0,0,0,0,0,0,0,0,1,1,1,1,  1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 }
3738 103 dgisselq
+#else
3739 127 dgisselq
+#  ifdef       zip_FP_PSEUDO
3740
+#    define    CALL_USED_REGISTERS     { 0,1,1,1,1,0,0,0,0,0,0,0,0,1,1,1,1 }
3741
+#  else
3742
+#    define    CALL_USED_REGISTERS     { 0,1,1,1,1,0,0,0,0,0,0,0,0,1,1,1 }
3743
+#  endif
3744 103 dgisselq
+#endif
3745 102 dgisselq
+
3746
+/* CALL_REALLY_USED_REGISTERS ...  optional macro that, if not defined, defaults
3747
+ * to the value of CALL_USED_REGISTERS.
3748
+ */
3749
+
3750
+/* HARD_REGNO_CALL_PART_CLOBBERED(REGNO,MODE) ... A C expression that is nonzero
3751
+ * if it is not permissible to store a value of mode MODE in hard register REGNO
3752
+ * across a call without some part of it being clobbbered.  For most machines,
3753
+ * this macro need not be defined.  It is only required for machines that do
3754 103 dgisselq
+ * not preserve the entire contents of a register across a call.
3755 102 dgisselq
+ *
3756 127 dgisselq
+ * ZipCPU--Always preserves the entire contents of those registers that are
3757
+ * preserved across calls, so this shouldnt need to be defined.
3758 102 dgisselq
+ */
3759 127 dgisselq
+// #define     HARD_REGNO_CALL_PART_CLOBBERED(REGNO,MODE)      (REGNO==0)
3760 102 dgisselq
+
3761
+/* TARGET_CONDITIONAL_REGISTER_USAGE(VOID) ... This hook may conditionally
3762
+ * modify five variables fixed_regs, call_used_regs, global_regs, reg_names, and
3763
+ * reg_class_contents, to take into account any dependence of these register
3764
+ * sets on target flags.  The first three of these are of type char[]
3765
+ * (interpreted as Boolean vectors).  global_regs is a const char *[] and
3766
+ * reg_class_contents is a HARD_REG_SET.  Before the macro is called,
3767
+ * fixed_regs, call_used_regs, reg_class_contents, and reg_names have been
3768
+ * initialized from FIXED_REGISTERS, CALL_USED_REGISTERS, REG_CLASS_CONTENTS,
3769
+ * and REGISTER_NAMES, respectively.  global_regs has been cleared, and any
3770
+ * -ffixed-reg, -fcall-used-reg, and -fcall-saved-reg command options have been
3771
+ * applied.
3772
+ *
3773
+ * ZipCPU -- I may need to return and define this depending upon how FP and
3774
+ * GBL register allocation go.  But for now, we'll leave this at its default
3775
+ * value.
3776
+ */
3777
+// #warning "Revisit me after FP and GBL allocation"
3778
+
3779
+/* INCOMING_REGNO(out) ... Define this macro if the target machine has register
3780
+ * windows. ...
3781
+ *
3782
+ * Zip CPU has no register windows.
3783
+ */
3784
+
3785
+/* OUTGOING_REGNO ... same thing.
3786
+ */
3787
+
3788
+/* LOCAL_REGNO ... same thing.
3789
+ */
3790
+
3791
+/* PC_REGNUM ... If the program counter has a register number, define this as
3792
+ * that register number.  Otherwise do not define it.
3793
+ */
3794
+#define        PC_REGNUM       zip_PC
3795
+
3796
+
3797
+/* REG_ALLOC_ORDER ... If defined, an initializer for a vector of integers,
3798
+ * containing the number of hard registers in the order in which GCC should
3799
+ * prefer to use them (from most preferred to least.
3800
+ *
3801 103 dgisselq
+ * If this macro is not defined, registers are used lowest numbered first (all
3802 102 dgisselq
+ * else being equal).
3803
+ *
3804
+ * Since the default is the ZipCPU desired case, we won't define this here.
3805
+ */
3806
+
3807
+/* ADJUST_REG_ALLOC_ORDER ... on most machines it is not necessary to define
3808
+ * this macro, so we won't either.
3809
+ */
3810
+
3811
+/* HONOR_REG_ALLOC_ORDER ...
3812
+ */
3813
+
3814
+/* HONOR_REG_ALLOC_ORDER ... on most machines it is not necessary to define
3815
+ * this macro, so we won't either.
3816
+ */
3817
+
3818
+/* HARD_REGNO_NREGS(REGNO, MODE) ... A C expression for the number of
3819
+ * consecutive hard registers, starting at register number REGNO, required to
3820
+ * hold a value of mode MODE.
3821
+ *
3822
+ * On a machine where all registers are exactly one word, a suitable definition
3823
+ * is given of ((GET_MODE_SIZE(MODE)+UNITS_PER_WORD-1)/UNITS_PER_WORD.
3824
+ *
3825
+ * On ZipCPU, we might do
3826
+ *     ((((MODE)==DImode)||((MODE)==DFmode))?2:1)
3827
+ * but I think the default (above) code should work as well.  Hence, let's stick
3828
+ * with the default, lest someone try to create larger modes (TImode, OImode,
3829
+ * XImode) and expect us to follow them properly some how.
3830
+ *
3831
+ * Okay, now in hind sight, we know that the default doesn't work for our
3832
+ * architecture, since GET_MODE_SIZE(SImode)=4, not 1.  Thus, let's rearrange
3833
+ * this expression to work in bits rather than in bytes and we'll know more
3834
+ * of what we are doing.
3835
+ */
3836
+#undef HARD_REGNO_NREGS
3837
+#define        HARD_REGNO_NREGS(REGNO, MODE)   ((GET_MODE_SIZE(MODE)+UNITS_PER_WORD-1)\
3838
+               / (UNITS_PER_WORD))
3839
+
3840
+/* HARD_REGNO_NREGS_HAS_PADDING(REGNO,MODE) ... A C expression that is nonzero
3841
+ * if a value of mode MODE, stored in memory, ends with padding that causes it
3842
+ * to take up more space than in registers starting at register number REGNO
3843
+ * (as determined by multiplying GCC's notion of the size of the register when
3844
+ * containing this mode by the number of registers returned by HARD_REGNO_NREGS)
3845
+ * By default this is zero.
3846
+ *
3847
+ * Zip CPU --- The default looks good enough to me.
3848
+ */
3849
+
3850
+/* HARD_REGNO_NREGS_WITH_PADDING(REGNO, MODE)
3851
+ *
3852
+ * ZipCPU ---
3853
+ */
3854
+
3855
+/* REGMODE_NATURAL_SIZE(MODE) -- Define this macro if the natural size of
3856
+ * registers that hold values of mode mode is not the word size.  It is a C
3857
+ * expression that should give the natural size in bytes for the specified mode.
3858
+ * It is used by the register allocator to try to optimize its results.
3859
+ *
3860
+ * ZipCPU ---
3861
+ */
3862
+// #define     REGMODE_NATURAL_SIZE(MODE)      (((MODE)==DImode)?2:1)
3863
+
3864
+/* HARD_REGNO_MODE_OK ... A C expression that is nonzero if it is permissible
3865 103 dgisselq
+ * to store a value of mode MODE in a hard register number REGNO (or in several
3866 102 dgisselq
+ * registers starting with that one).  For a machine where all registers are
3867
+ * equivalent, a suitable definition is '1'.  You need not include code to check
3868
+ * for the numbers of fixed registers, because the allocation mechanism
3869
+ * considered them to be always occupied.
3870
+ *
3871
+ * ZipCPU --- As long as you are already avoiding the fixed registers, the
3872
+ * suitable default definition mentioned above should be sufficient.
3873
+ */
3874
+#undef HARD_REGNO_MODE_OK
3875 103 dgisselq
+#define        HARD_REGNO_MODE_OK(R,M) (R<zip_CC)
3876 102 dgisselq
+
3877
+/* HARD_REGNO_RENAME_OK(FROM,TO) ... A C expression that is nonzero if it is
3878
+ * okay to rename a hard register FROM to another hard register TO.  One common
3879
+ * use of this macro is to prevernt renaming of a register to another register
3880
+ * that is not saved by a prologue in an interrupt handler.  The default is
3881
+ * always nonzero.
3882
+ *
3883
+ * ZipCPU --- The default looks good enough to us.
3884
+ */
3885
+#undef HARD_REGNO_RENAME_OK
3886
+#define        HARD_REGNO_RENAME_OK(FROM,TO)   ((is_ZIP_GENERAL_REG(FROM))&&(is_ZIP_GENERAL_REG(TO)))
3887
+
3888
+
3889
+/* MODES_TIABLE_P(M1, M2) ... A C expression that is nonzero if a value of mode
3890
+ * M1 is accessible in mode M2 without copying.
3891
+ *
3892
+ * ZipCPU --- well, that's true for us (although we support scant few modes) ...
3893
+ * so lets' set to one.
3894
+ */
3895
+#define        MODES_TIEABLE_P(M1,M2)  1
3896
+
3897
+/* TARGET_HARD_REGNO_SCRATCH_OK(REGNO)
3898
+ * This target hook should return true if it is OK to use a hard register
3899
+ * REGNO has a scratch register in peephole2.  One common use of this macro is
3900
+ * to prevent using of a register that is not saved by a prologue in an
3901
+ * interrupt handler.  The default version of this hook always returns true.
3902
+ *
3903
+ * ZipCPU --- the default works for us as well.  If you are in an interrupt
3904
+ * context, you have an entirely new set of registers (the supervisor set), so
3905
+ * this is a non-issue.
3906
+ */
3907
+
3908
+/* AVOID_CCMODE_COPIES ... define this macro if the compiler should avoid
3909
+ * copies to/from CCmode register(s).  You should only define this macro if
3910
+ * support for copying to/from CCmode is incomplete.
3911
+ *
3912
+ * ZipCPU --- CCmode register copies work like any other, so we'll keep with the
3913
+ * default definition.
3914
+ */
3915
+
3916
+/* STACK_REGS ... Define this if the machine has any stack-like registers.
3917
+ *
3918
+ * Zip CPU has no stack-like registers, as their definition is different from
3919
+ * the ZipCPU stack pointer register.
3920
+ */
3921
+
3922 127 dgisselq
+// #define     ZIP_REG_BYTE_SIZE       1
3923 102 dgisselq
+
3924
+/* 17.08 Register Classes */
3925
+
3926
+/* enum reg_class ... An enumerate type that must be defined with all the
3927
+ * register class names as enumerated values.  NO_REGS must be first.  ALL_REGS
3928
+ * must be the last register class, followed by one more enumerated value,
3929
+ * LIM_REG_CLASSES, which is not a register class but rather tells how many
3930
+ * classes there are.
3931
+ *
3932
+ * ZipCPU --- We'll defined register 0-13 as general registers, 14-15 in
3933
+ * all_regs, and go from there.
3934
+ */
3935
+enum   reg_class {
3936
+       NO_REGS, GENERAL_REGS,
3937
+#ifdef DEFINE_USER_REGS
3938
+       USER_REGS,
3939
+#endif
3940
+       ALL_REGS, LIM_REG_CLASSES
3941
+};
3942
+
3943
+/* N_REG_CLASSES ... the number of distinct register classes, defined as follows
3944
+ */
3945
+#define        N_REG_CLASSES   (int)LIM_REG_CLASSES
3946
+
3947
+/* REG_CLASS_NAMES ... An initializer containing the names of the register
3948
+ * classes as C string constants.  These names are used in writing some of the
3949
+ * debugging dumps.
3950
+ */
3951 127 dgisselq
+#ifdef DEFINE_USER_REGS
3952
+#  define      REG_CLASS_NAMES { "NO_REGS", "GENERAL_REGS", "USER_REGS", "ALL_REGS" }
3953
+#else
3954
+#  define      REG_CLASS_NAMES { "NO_REGS", "GENERAL_REGS", "ALL_REGS" }
3955
+#endif
3956 102 dgisselq
+
3957
+/* REG_CLASS_CONTENTS ... An initializer containing the contents of the register
3958 127 dgisselq
+ * classes, as integers which are bit masks.  The nth integer specifies the
3959 102 dgisselq
+ * contents of class n.  That way the integer mask is interpreted as that
3960
+ * register r is in the class if (mask&(1<<r)) is 1.
3961
+ *
3962
+ * When the machine has more than 32 registers ... that's not us.
3963
+ *
3964
+ * ZipCPU --- This is straight forward, three register classes, etc.
3965
+ */
3966 127 dgisselq
+#ifdef DEFINE_USER_REGS
3967
+#    define    REG_CLASS_CONTENTS { { 0x000000000}, {0x00003fff}, {0x0ffff0000l}, {0x0ffffffffl} }
3968 103 dgisselq
+#else
3969 127 dgisselq
+#  ifdef       zip_FP_PSEUDO
3970
+#    define    REG_CLASS_CONTENTS { { 0x00000}, {0x13fff}, {0x1ffff} }
3971
+#  else
3972
+#    define    REG_CLASS_CONTENTS { { 0x00000}, {0x03fff}, {0x0ffff} }
3973
+#  endif
3974 103 dgisselq
+#endif
3975 102 dgisselq
+
3976
+/* REGNO_REG_CLASS ... A C expression whose value is a register class
3977
+ * containing hard register REGNO.  In general there is more than one such
3978
+ * class;  Choose a class which is minimal, meaning that no smaller class also
3979
+ * contains the register.
3980
+ */
3981
+#undef REGNO_REG_CLASS
3982 103 dgisselq
+#ifdef zip_FP_PSEUDO
3983
+#define        REGNO_REG_CLASS(R)      (is_ZIP_REG(R)?((((R)<=13)||((R)==zip_FP_PSEUDO))?GENERAL_REGS:ALL_REGS):NO_REGS)
3984
+#else
3985 102 dgisselq
+#define        REGNO_REG_CLASS(R)      (is_ZIP_REG(R)?((R<=13)?GENERAL_REGS:ALL_REGS):NO_REGS)
3986 103 dgisselq
+#endif
3987 102 dgisselq
+
3988
+/* BASE_REG_CLASS ... A macro whose definition is the name of the class to which
3989
+ * a valid base register must belong.  A base register is one used in an address
3990
+ * which is the register value plus a displacement.
3991
+ */
3992
+#undef BASE_REG_CLASS
3993
+#define        BASE_REG_CLASS  GENERAL_REGS
3994
+
3995
+/* MODE_BASE_CLASS(MODE) ... This is a variation of the BASE_REG_CLASS macro
3996
+ * which allows the selection of a bse register in a mode dependent manner.  If
3997
+ * mode is VOIDmode then it should return the same value as BASE_REG_CLASS.
3998
+ */
3999
+#undef MODE_BASE_CLASS
4000
+#define        MODE_BASE_CLASS(MODE)   GENERAL_REGS
4001
+
4002
+/* MODE_BASE_REG_REG_CLASS(MODE) ... A C expression whose value is the register
4003
+ * class to which a valid base register must belong in order to be used in a
4004
+ * base plus index register address.  You should define this macro if base plus
4005
+ * index addresses have different requirements than other base register uses.
4006
+ *
4007
+ * Zip CPU does not support the base plus index addressing mode, thus ...
4008
+ */
4009 111 dgisselq
+// #undef      MODE_BASE_REG_REG_CLASS
4010
+// #define     MODE_BASE_REG_REG_CLASS(MODE)   NO_REGS
4011 102 dgisselq
+
4012
+/* INDEX_REG_CLASS ... A macro whose definition is the name of the class to
4013
+ * which a valid index register must belong.  An index register is one used in
4014
+ * an address where its value is either multiplied by a scale factor or added
4015
+ * to another register (as well as added to a displacement).
4016
+ *
4017
+ * ZipCPU -- Has no index registers.
4018
+ */
4019
+#undef INDEX_REG_CLASS
4020
+#define        INDEX_REG_CLASS NO_REGS
4021
+
4022
+/* REGNO_OK_FOR_BASE_P(NUM) ... A C expression which is nonzero if register
4023
+ * number num is suitable for use as a base register in operand addresses.
4024
+ */
4025
+#undef REGNO_OK_FOR_BASE_P
4026 127 dgisselq
+# define REGNO_OK_FOR_BASE_P(NUM)      ((NUM>=FIRST_PSEUDO_REGISTER)||(NUM != zip_CC))
4027 102 dgisselq
+
4028
+/* REGNO_MODE_OK_FOR_BASE_P ... A C expressison that is just like
4029
+ * REGNO_OK_FOR_BASE_P, except that that expression may examine the mode of the
4030 111 dgisselq
+ * memory reference in MODE.  You should define this macro if the mode of the
4031 102 dgisselq
+ * memory reference affects whether a register may be used as a base register.
4032
+ *
4033
+ * ZipCPU --- the mode doesn't affect anything, so we don't define this.
4034
+ */
4035
+
4036
+/* REGNO_MODE_OK_FOR_REG_BASE_P(NUM, MODE) ... base plus index operand
4037
+ * addresses, accessing memory in mode mode.
4038
+ *
4039
+ * Use of this macro is deprecated.
4040
+ */
4041
+
4042 111 dgisselq
+/* REGNO_MODE_CODE_OK_FOR_BASE_P(N,M,AS,OC,IC) ... A C expression which is
4043 102 dgisselq
+ * nonzero if a register number N is suitable for use as a base register in
4044
+ * operand addresses, accessing memory in mode M in address space AS.  This is
4045
+ * similar to REGNO_MODE_OK_FOR_BASE_P, except that the expression may examine
4046
+ * the context in which the register appears in the memory reference.
4047
+ *
4048
+ * ZipCPU---We aren't specific in how we use our registers.
4049
+ */
4050
+#define        REGNO_MODE_CODE_OK_FOR_BASE_P(N,M,AS,OC,IC) REGNO_OK_FOR_BASE_P(N)
4051
+
4052
+/* REGNO_OK_FOR_INDEX_P(REGNO) ... A C expression which is nonzero if register
4053
+ * num is suitable for use as an index register in opernad addressess.  It may
4054
+ * be either a suitable hard register or a pseudo register that has been
4055 111 dgisselq
+ * allocated such as a hard register.
4056 102 dgisselq
+ *
4057
+ * ZipCPU has no index registers, therefore we declare this to be zero.
4058
+ */
4059
+#undef REGNO_OK_FOR_INDEX_P
4060
+#define        REGNO_OK_FOR_INDEX_P(REGNO)     0
4061
+
4062
+/* TARGET_PREFERRED_RENAME_CLASS(RCLASS) ... A target hook that places
4063
+ * additional preference on the register class to use when it is necessary to
4064
+ * rename a register in class RCLASS to another class, or perhaps NO_REGS, if no
4065
+ * preferred register class is found or hook preferred_rename_class is not
4066
+ * implemented.  SOmething returning a more restrictive class makes better code.
4067
+ * For example, on ARM, thumb-2 instructions using LO_REGS may be smaller than
4068
+ * instructions using GENERIC_REGS.  By returning LO_REGS from
4069
+ * preferred_rename_class, code size can be reduced.
4070
+ */
4071
+// #undef TARGET_PREFERRED_RENAME_CLASS
4072
+// #define     TARGET_PREFERRED_RENAME_CLASS(RCLASS)   RCLASS
4073
+
4074
+/* TARGET_PREFERRED_RELOAD_CLASS(X,RC) ... A target hook that places additional
4075
+ * restri tions on the register class to use when it is necessary to copy value
4076
+ * X into a register in class RC.  The value is a register class; rehaps RC, or
4077
+ * perhaps a smaller class.
4078
+ *
4079
+ * The default fversion of this hook always returns value of RC argument, which
4080
+ * sounds quite appropriate for the ZipCPU.
4081
+ */
4082
+
4083
+/* PREFERRED_RELOAD_CLASS(X,CLASS) ... A C expression that places additional
4084
+ * restrictions on the register class to use when it is necessary to copy
4085
+ * value X into a register in class CLASS.  On many machines, the following
4086
+ * definition is safe: PREFERRED_RELOAD_CLASS(X,CLASS) (CLASS)
4087
+ * Sometimes returning a more restrictive class makes better code.  For example,
4088
+ * on the 68k, when x is an integer constant that is in range for a moveq
4089
+ * instruction, the value of this macro is always DATA_REGS as long as CLASS
4090 111 dgisselq
+ * includes the data registers.  Requiring a data register guarantees that a
4091 102 dgisselq
+ * 'moveq' will be used.
4092
+ *
4093
+ * ZipCPU --- you can't load certain values into all members of ALL_REGS.  For
4094
+ * example, loading (sleep and !gie) into the CC register could halt the CPU.
4095
+ * Hence, we only allow loads into the GENERAL_REG class.
4096
+ */
4097
+#define        PREFERRED_RELOAD_CLASS(X, CLASS)        GENERAL_REGS
4098
+
4099
+/* TARGET_PREFERRED_OUTPUT_RELOAD_CLASS(RTX,RCLASS) ... Like TARGET_PREFERRED_..
4100
+ * RELOAD_CLASS, but for output instead of input reloads.
4101
+ *
4102
+ * ZipCPU --- there's gotta be a valid default behaviour for this.
4103
+ */
4104
+
4105
+/* LIMIT_RELOAD_CLASS(MODE, CL) ...
4106
+ *
4107
+ * Don't define this macro unless the target machine has limitations which
4108
+ * require the macro to do something nontrivial.  ZipCPU doesn't, so we won't.
4109
+ */
4110
+
4111
+/* TARGET_SECONDARY_RELOAD
4112
+ * SECONDARY_ ...
4113
+ * Don't think we need these ...
4114
+ */
4115
+
4116
+/* CLASS_MAX_NREGS(CLASS,MODE) ... A C expression for the maximum number of
4117
+ * consecutive registers of class CLASS needed to hold a value of mode MODE.
4118
+ *
4119
+ * This is closely related to the macro HARD_REGNO_NREGS.  In fact, the value
4120
+ * of the macro CLASS_MAX_REGS(CL,M) should be the maximum value of
4121
+ * HARD_REGNO_NREGS(REGNO,MODE) for all REGNO values in the class CLASS.
4122
+ *
4123
+ * This macro helps control the handling of multiple word values in the reload
4124
+ * pass.
4125
+ *
4126
+ * ZipCPU --- We'll just use HARDNO_REGNO_NREGS, since CLASS is independent for
4127
+ * us.  We'll also choose register R0, since ... well, since it simply doesn't
4128
+ * matter.  (HARD_REGNO_NREGS ignores this anyway)
4129
+ */
4130
+#define        CLASS_MAX_NREGS(CLASS, MODE)    HARD_REGNO_NREGS(0,MODE)
4131
+
4132
+/* CANNOT_CHANGE_MODE_CLASS
4133
+ * ???
4134
+ */
4135
+
4136
+/* TARGET_IRA_CHANGE_PSEUDO_ALLOCNO_CLASS
4137
+ */
4138
+
4139
+/* TARRGET_LRA_P
4140
+ * Default looks good.
4141
+ */
4142
+
4143
+/* TARGET_REGISTER_PRIORITY(INT) ... A target hook which returns the register
4144 111 dgisselq
+ * priority number to which the register HARD_REGNO belongs to.  The bigger the
4145 102 dgisselq
+ * number
4146
+ *
4147
+ * The default version of this target hook returns always zero---good enough for
4148
+ * the ZipCPU.
4149
+ */
4150
+
4151
+/* TARGET_REGISTER_USAGE_LEVELING_P(VOID) ... A target hook which returns true
4152
+ * if we need register usage leveling.  That means if a few hard registers are
4153
+ * equally good for the assignment, we choose the least used hard register.  The
4154
+ * register usage leveling may be profitable for some targets.  Don't use usage
4155
+ * leveling for targets with conditional execution or targets with big register
4156
+ * files as it hurts if-conversion and cross-jumping optimizations.  The default
4157
+ * version of this target hook returns always false.
4158
+ *
4159
+ * ZipCPU --- Default is the right answer.
4160
+ */
4161
+
4162
+/* TARGET_DIFFERENT_ADDR_DISPLACEMENT_P ...
4163
+ * Default looks good.
4164
+ */
4165
+
4166
+/* TARGET_CANNOT_SUBSTITUTE_MEM_EQUIV_P ...
4167
+ * Default looks good.
4168
+ */
4169
+
4170
+/* TARGET_LEGITIMIZE_ADDRESS_DISPLACEMENT ....
4171
+ */
4172
+
4173
+/* TARGET_SPILL_CLASS
4174
+ *
4175
+ * ZipCPU --- If we were running in supervisor mode only, this might be the
4176
+ * user set of registers.  However, we're not building for that mode (now),
4177
+ * so we'll leave this at the default of NO_REGS.
4178
+ */
4179
+
4180
+/* TARGET_CSTORE_MODE(ICODE) ... Defines the machine mode to use for the
4181
+ * boolean result of conditional store patterns.  The OCIDE argument is the
4182
+ * instruction code for the cstore being performed.  Not defining this hook is
4183
+ * the same as accepting the mode encoded into operand 0 of the cstore expander
4184
+ * patterns.
4185
+ *
4186
+ * ??? ZipCPU --- I don't follow this documentation.  We'll leave this at the
4187
+ * default therefore.
4188
+ */
4189
+
4190
+/* 17.09 Stack Layout and Calling Conventions */
4191
+
4192
+
4193
+/* STACK_GROWS_DOWNWARD ... Define this macro if pushing a word onto the stack
4194
+ * moves the stack pointer to a smaller address, and false otherwise.
4195
+ *
4196
+ * ZipCPU ... well, our stack does grow downward, but it doesn't do so auto-
4197
+ * magically.  We have to move the stack pointer ourselves.  However, since this
4198
+ * is our convention, we'll define it as such.
4199
+ */
4200
+#undef STACK_GROWS_DOWNWARD
4201
+#define        STACK_GROWS_DOWNWARD    1
4202
+
4203
+/* STACK_PUSH_CODE ... This macro defines the operation used when something is
4204
+ * pushed on the stack.  In RTL, a push operation will be
4205
+ * (set (mem( STACK_PUSH_CODE(reg sp))) ...) The choiecs are PRE_DEC, POST_DEC,
4206
+ * PRE_INC, and POST_INC.  Which of these is correct depends on the stack
4207
+ * direction and on whether the stack pointer points to the last item on the
4208
+ * stack or whether it points to the space for the next item on the stack.
4209
+ * The default is PRE_DECC when STACK_GROWS_DOWNWARD is true, which is almost
4210
+ * always right, and PRE_INC otherwise, which is often wrong.
4211
+ *
4212
+ * ZipCPU --- None of these is right, so let's leave this at the default and
4213
+ * see how badly we get mangled.  In particular, ZipCPU doesn't have any of the
4214
+ * PRE_DEC, POST_DEC, PRE_INC, or POST_INC addressing modes used here.
4215
+ */
4216
+
4217
+/* FRAME_GROWS_DOWNWARD ... Define this macro to nonzero if the addresses of
4218
+ * local variable slots are at negative offsets from the frame pointer.
4219
+ *
4220
+ * ZipCPU --- If the frame pointer is defined as the stack pointer upon the
4221 103 dgisselq
+ * start of function execution, and that stack pointer grows downward, then
4222 102 dgisselq
+ * this should be the case as well.
4223
+ */
4224
+#undef FRAME_GROWS_DOWNWARD
4225
+#define        FRAME_GROWS_DOWNWARD    1
4226
+// #define     FRAME_GROWS_DOWNWARD    0        // This was ECO32's value
4227
+
4228
+
4229
+/* ARGS_GROW_DOWNWARD ... Define this macro if successive arguments to a
4230
+ * function occupy decreasing addresses on the stack.
4231
+ *
4232
+ * ZipCPU -- we can leave this up to the compiler's preferred implementation,
4233
+ * it is of no consequence to the hardware.
4234
+ */
4235
+
4236
+/* STARTING_FRAME_OFFSET ... Offset from the frame pointer to the first local
4237
+ * variable slot to be allocated.  If FRAME_GROWS_DOWNWARD, find the next slot's
4238
+ * offset by subtracting the firstt slot's length from STARTING_FRAME_OFFSET.
4239
+ * Otherwise it is found by adding the length of the first slot to the value
4240
+ * START_FRAME_OFFSET.
4241
+ *
4242
+ * ZipCPU --- I'm not certain on this, let's come back after we look at how
4243
+ * the code is getting generated.  However, the ECO32 code I am copying from
4244
+ * suggests that 0 is the right value, so we'll use that here.
4245
+ */
4246
+// #warning "Re-evaluate me"
4247
+#define        STARTING_FRAME_OFFSET   0
4248
+
4249
+/* STACK_ALIGNMENT_NEEDED ... Define to zero to disable final alignment of the
4250
+ * stack during reload.  The nonzero default for this macro is suitable for most
4251
+ * ports.
4252
+ *
4253
+ * ZipCPU --- we'll leave this at the default, although if any alignment code
4254
+ * shows up on the stack we may need to adjust it.
4255
+ */
4256
+
4257
+/* STACK_POINTER_OFFSET ... Offset from the SP register to the first location at
4258
+ * which outgoing arguments are placed.  If not specified, the default value
4259
+ * of zero is used.  This is the proper value for most machines.
4260
+ */
4261
+#define        STACK_POINTER_OFFSET    0
4262
+
4263
+/* FIRST_PARM_OFFSET ... Offset from the argument pointer register to the first
4264
+ * argument's address.  On some machines it may depend on the data type of the
4265
+ * function.
4266
+ */
4267
+#define        FIRST_PARM_OFFSET(F)    0
4268
+
4269
+/* STACK_DYNAMIC_OFFSET(F) ... Offset from the stack pointer register to an item
4270
+ * dynamically allocated on the stack, e.g., by alloca.  The default value for
4271
+ * this macro is STACK_POINTER_OFFSET plus the length of the outgoing arguments.
4272
+ * The default is correct for most machines, ...
4273
+ *
4274
+ * ZipCPU --- so we'll use it for the ZipCPU.
4275
+ */
4276
+
4277
+/* INITIAL_FRAME_ADDRESS_RTX ... A C expression whose value is RTL representing
4278
+ * the address of the initial stack frame.  This address is passed to
4279
+ * RETURN_ADDR_RTX and DYNAMIC_CHAIN_ADDRESS.  If you don't define this macro,
4280
+ * a reasonable default value will be used.  Define this macro in order to make
4281
+ * frame pointer elimination work in the presence of __builtin_frame_address(C)
4282
+ * and __builtin_return_address(C) for (C) not equal to zero.
4283
+ *
4284
+ * ZipCPU --- Let's try the reasonable default and see what happens.
4285
+ */
4286
+
4287
+/* SETUP_FRAME_ADDRESSES ... A C expression that produces the machine-specific
4288
+ * code to setup the stack so that arbitrary frames can be accessed.  For
4289
+ * example, on the SPARC, we must flush all of the register windows to the stack
4290
+ * before we can access arbitrary stack frames.  You will seldom need to define
4291
+ * this macro.  The default is to do nothing.
4292
+ *
4293
+ * ZipCPU --- which is what we shall do here.
4294
+ */
4295
+
4296
+/* TARGET_BUILTIN_SETJMP_FRAME_VALUE(VOID) ... This target hook should return
4297
+ * an RTX that is used to store the address of the current frame into the
4298
+ * builtin setjmp buffer.  The default value, virtual_stack_vars_rtx, is correct
4299
+ * for most machines.  One reason you may need to define this target hook is if
4300
+ * hard_frame_pointer_rtx is the appropriate value on your machine.
4301
+ *
4302
+ * ZipCPU --- leave this undefined, since the default value should be correct
4303
+ * for "most" machines.
4304
+ */
4305
+
4306
+/* FRAME_ADDR_RTX ... most machines do not need to define it.
4307
+ */
4308
+
4309
+/* RETURN_ADDR_RTX(COUNT,FRAMEADDR) ... A C expression whose value is RTL
4310
+ * representing the value of the return address for the frame COUNT steps up
4311
+ * from the current frame, after the prologue.  FRAMEADDR is the frame pointer
4312
+ * of the COUNT frame, or the frame pointer of the COUNT-1 frame if
4313
+ * RETURN_ADDR_IN_PREVIOUS_FRAME is nonzero.  The value of the expression must
4314
+ * always be the correct address when COUNT is nonzero, but may be NULL_RTX if
4315
+ * there is no way to determine the return address of other frames.
4316
+ *
4317
+ * ZipCPU --- I have no idea how we'd do this, so let's just return NULL_RTX.
4318
+ */
4319
+#undef RETURN_ADDR_RTX
4320
+#define        RETURN_ADDR_RTX(COUNT,FRAMEADDR)        NULL_RTX
4321
+
4322
+/* RETURN_ADDR_IN_PREVIOUS_FRAME ... Define this macro to nonzero value if the
4323
+ * return address of a particular stack frame is accessed from the frame pointer
4324
+ * of the previous stack frame.  The zero default for this macro is suitable
4325
+ * for most ports.
4326
+ *
4327
+ * ZipCPU---Default works here as well.
4328
+ */
4329
+
4330
+/* INCOMING_RETURN_ADDR_RTX ... A C expression whose value is RTL representing
4331
+ * the location of the incoming return address at the beginning of any function,
4332
+ * before the prologue.  This RTL is either a REG, indicating that the return
4333
+ * value is saved in 'REG', or a MEM representing the location in the stack.
4334
+ * If this RTL is a REG, you should define DWARF_RETURN_COLUMN to
4335
+ * DWARF_FRAME_REGNUM(REGNO).
4336
+ *
4337
+ * ZipCPU --- While our incoming return address could theoretically be in any
4338
+ * register, our machine description file is going to place it into register
4339
+ * R0, so that's what we return here.
4340
+ */
4341
+#undef INCOMING_RETURN_ADDR_RTX
4342
+#define        INCOMING_RETURN_ADDR_RTX        gen_rtx_REG(SImode, zip_R0)
4343
+
4344
+
4345
+/* DWARF_ALT_FRAME_RETURN_COLUMN
4346
+ */
4347
+
4348
+/* DWARF_ZERO_REG ... A C exrpession whose value is an integer giving a DWARF2
4349
+ * register number that is considered to always have the value zero.  This
4350
+ * should only be defined if the target has an architected zero register (ZipCPU
4351
+ * does not), and someone decided it was a good idea to use that register number
4352
+ * to terminate the stack backtrace.  New ports should avoid this (so the
4353
+ * ZipCPU port will avoid it as well).
4354
+ *
4355
+ */
4356
+
4357
+/* TARGET_DWARF_HANDLE_FRAME_UNSPEC
4358
+ */
4359
+
4360
+/* INCOMING_FRAME_SP_OFFSET
4361
+ */
4362
+#define        INCOMING_FRAME_SP_OFFSET        0
4363
+
4364
+/* ARG_POINTER_CFA_OFFSET
4365
+ */
4366
+
4367
+/* FRAME_POINTER_CFA_OFFSET
4368
+ */
4369
+
4370
+/* CFA_FRAME_BASE_OFFSET
4371
+ */
4372
+
4373
+/* 17.09.02 Exception handling support */
4374
+
4375
+/* EH_RETURN_DATA_REGNO(N) ... A C expression whose value is the Nth register
4376
+ * number used for data by exception handlers, or INVALID_REGNUM if fewer than
4377
+ * N registers are usable.  The exception handling library routines communicate
4378
+ * with the exception handlers via a set of agreed upon registers.  Ideally
4379
+ * these registers should be call clobbered; it is possible to use call-saved
4380
+ * registers, but may negatively impact code size.  The target must support at
4381
+ * least 2 data registers, but should define 4 if their are enough free
4382
+ * registers.
4383
+ *
4384
+ * You must define this macro if you want to support call frame exception
4385
+ * handling like that provided by DWARF 2.
4386
+ */
4387
+#define        EH_RETURN_DATA_REGNO(N) (((N<ZIP_FIRST_ARG_REGNO)||(N>ZIP_LAST_ARG_REGNO))?(N-1):INVALID_REGNUM)
4388
+
4389
+/* EH_RETURN_STACKADJ_RTX ... A C expression whose value is RTL representing
4390
+ * a location in which to store a stack adjustment to be applied before function
4391
+ * return.  This is used to unwind the stack to an exception handler's call
4392
+ * frame.  It will be assigned zero on code paths that return normally.
4393
+ *
4394
+ * Do not define this macro if the stack pointer is saved and restored by the
4395
+ * regular prolog and epilog code in the call frame itself (which it is for the
4396
+ * ZipCPU); in this case, the exception handling library routines will update
4397
+ * the stack location to be restored in place.  Otherwise, you must define this
4398
+ * macro if you want to support call frame exception handling like that provided
4399
+ * by DWARF 2.
4400
+ *
4401
+ */
4402
+
4403
+/* EH_RETURN_HANDLER_RTX ... A C expression whose value is RTL representing a
4404
+ * location in which to store the address of an exception handler to which we
4405
+ * should return.  It will not be assigned on code paths that return normally.
4406
+ *
4407
+ * Typcally this is the location in the call frame at which the normal return
4408
+ * address is stored.  For targets that return by popping an address of the
4409
+ * stack, this might be a memory address just below the target callf rame
4410
+ * rather than inside the current call frame.  If defined,
4411
+ * EH_RETURN_STACKADJ_RTX will have already been assigned, so it may be used
4412
+ * to calculate the location of the target call frame.
4413
+ *
4414
+ * If you want to support call frame exception handling, you must define either
4415
+ * this macro or the eh_return instruction pattern.
4416
+ */
4417
+// #warning "I don't know what to do here."
4418
+
4419
+/*
4420
+ *
4421
+ *
4422
+ *
4423
+ *   REST OF SECTION SKIPPED ...
4424
+ *
4425
+ *
4426
+ *
4427
+ */
4428
+
4429
+/* 17.09.03 Specifying how stack checking is done */
4430
+
4431
+/* STACK_CHECK_BUILTIN ... a non-zero value if stack checking is done by the
4432
+ * configuration files in a machine-dependent manner.  You should define this
4433
+ * macro if stack checking is required by the ABI of your machine or if you
4434
+ * would like to do stack checking in some more efficient way than the generic
4435
+ * appraoch.  The default value of this macro is zero.
4436
+ *
4437
+ * ZipCPU --- The default makes sense for us.
4438
+ */
4439
+// #define STACK_CHECK_BUILTIN 0
4440
+
4441
+/* STACK_CHECK_STATIC_BUILTIN ... A nonzero value if static stack checking is
4442
+ * done by the configuration files in a machine-dependent manner.  You should
4443
+ * define this macro if you would like to do static stack checking in some more
4444
+ * efficient way than the generic approach.  The default value of this macro
4445
+ * is zero.
4446
+ *
4447
+ * ZipCPU --- The default makes sense for us.
4448
+ */
4449
+
4450
+/* STACK_CHECK_PROBE_INTERVAL_EXP ...  An integer specifying the interval at
4451
+ * which GCC must generate stack probe instructions, defined as 2 raised to this
4452
+ * interval.  You will normally define this macro so that the interval is no
4453
+ * larger than the size of the "guard pages" at the end of a stack area.  The
4454
+ * default value of 12 (4096-byte interval) is suitable for most systems.
4455
+ *
4456
+ * ZipCPU --- Default.
4457
+ */
4458
+
4459
+/* STACK_CHECK_MOVING_SP ... An integer which is non-zero if GCC should move
4460
+ * the stack pointer page by page when doing probes.  This can be necessary
4461
+ * on systems where the stack pointer contains the bottom address of the memory
4462
+ * area accessible to the executing thread at any point in time.  In this
4463
+ * situation, an alternate signal stack is required in order to be able to
4464
+ * recover from a stack overflow.  The default value of this macro is zero.
4465
+ *
4466
+ * ZipCPU -- Default.
4467
+ */
4468
+
4469
+/* STACK_CHECK_PROTECT
4470
+ */
4471
+/* STACK_CHECK_MAX_FRAME_SIZE
4472
+ * ... you should normally not change the default value of this macro.
4473
+ */
4474
+/* STACK_CHECK_FIXED_FRAME_SIZE
4475
+ * ... you ... will normally use the default of four words.
4476
+ */
4477
+
4478
+/* STACK_CHECK_MAX_VAR_SIZE
4479
+ * ... you will normally not need to override that default.
4480
+ */
4481
+
4482
+/* 17.09.04 Registers that Address the Stack Frame*/
4483
+
4484
+/* STACK_POINTER_REGNUM ... The register number of the stack pointer register,
4485
+ * which must also be a fixed register according to FIXED_REGISTERS.  On most
4486
+ * machines, the hardware determines which register this is.
4487
+ */
4488
+#undef STACK_POINTER_REGNUM
4489
+#define        STACK_POINTER_REGNUM    zip_SP
4490
+
4491
+/* FRAME_POINTER_REGNUM ... The register number of the frame pointer register,
4492
+ * which is used to access certain automatic variables in the stack frame.  On
4493
+ * some machines, the hardware determines which register this is.  On other
4494
+ * machines you can choose any register you wish for this purpose.
4495
+ *
4496
+ * ZipCPU --- While I'd like to dump this pointer, since I don't really see
4497
+ * a need for it, alloca() requires it.  Therefore let's assine a register to
4498
+ * this purpose and watch what the compiler does with it.
4499
+ */
4500 103 dgisselq
+#ifdef zip_FP_PSEUDO
4501
+#define        FRAME_POINTER_REGNUM    zip_FP_PSEUDO
4502
+#else
4503 102 dgisselq
+#define        FRAME_POINTER_REGNUM    zip_FP
4504 103 dgisselq
+#endif
4505 102 dgisselq
+
4506
+/* HARD_FRAME_POINTER_REGNUM ... On some machines the offset between the frame
4507
+ * pointer and starting offset of the automatic variables is not known until
4508
+ * after register allocation has been done (for example, because the saved
4509
+ * registers are between these two locations).  On those machines, define
4510
+ * FRAME_POINTER_REGNUM the number of a special, fixed register to be used
4511
+ * internally until the offset is known, and define HARD_FRAME_POINTER_REGNUM
4512
+ * to be the actual hard register number used for the frame pointer.
4513
+ *
4514
+ * Do not define this macro if it would be the same as FRAME_POINTER_REGNUM
4515
+ *
4516
+ * ZipCPU --- we do not define this macro.
4517
+ */
4518 103 dgisselq
+#if (zip_FP == FRAME_POINTER_REGNUM)
4519
+#define HARD_FRAME_POINTER_REGNUM      zip_FP
4520
+#endif</