Rev |
Log message |
Author |
Age |
Path |
125 |
This patch contains minor updates. Two are important to mention: 1) It turns
the compare optimizations back on within the zip.md file, and 2) it fixes an
internal compiler fault that was causing the compiler to such up all of my
memory in an infinite recursion. |
dgisselq |
2906d 16h |
/zipcpu/trunk/sw |
124 |
Lots of changes, lots of bugfixes--both to the compiler as well as to the
assembler. (Ex: the assembler will now properly execute a LDI _sym+5,R0).
Many compiler optimizations have been turned off, however. They will probably
be turned back on in the near future--once I get this version proven without
them. |
dgisselq |
2908d 06h |
/zipcpu/trunk/sw |
123 |
This test now catches and tests some of the pipeline bugs I've been chasing. |
dgisselq |
2908d 06h |
/zipcpu/trunk/sw |
122 |
This represents a major rewrite of the machine definition file, gcc/config/zip/
zip.md. In particular, the architecture has been changed from a "cc0"
architecture to one with a specific CC_REG and CCmode. Instructions in the
machine definition file must now explicitly set this register with their
results. The result is better condition code handling, better usage of the
conditional execution modes of certain instructions, and even some decent
optimizations. |
dgisselq |
2913d 10h |
/zipcpu/trunk/sw |
121 |
Fixed the bug whereby BGE instructions dissassembled as BGT instructions and
vice versa. Loads and stores of absolute addresses now show those addresses
in ($<>). The assembler also accepts integer offsets to symbols, although
it isn't clear that it does the "right" thing with them yet. |
dgisselq |
2913d 10h |
/zipcpu/trunk/sw |
120 |
Should've regression tested that last build. This one fixes what that last
fix broke: Registers with offsets (i.e. operand-B) now work (again). |
dgisselq |
2917d 05h |
/zipcpu/trunk/sw |
119 |
Fixed some limits bugs. Now LDI.Z 1 produces LDIHI.Z 0, LDOLO.Z 1 as desired
instead of the erroneous BREV.Z 0. Likewise, loading 0x80000000 no longer
produces a clear instruction, but actually loads the value of interest. |
dgisselq |
2917d 06h |
/zipcpu/trunk/sw |
117 |
Bug fixes: This adds the zip_ucc() instruction as a builtin, fixes the zip_cc()
builtin (both are now unspec_volatile) together with fixing the *_context(int*)
builtins so that they use five registers, never four. Further, this fixes the
negative stack space offset bug. Many of the GCC files now have Zip debugging
hooks within them as well, to simplify further debugging of the compiler. |
dgisselq |
2917d 16h |
/zipcpu/trunk/sw |
116 |
Updated binutils. This fixes problems with linking global variables, fixes
the map file report, adjusts the LJMP instruction disassembly to display the
resulting address, as well as in general fixing up link problems when
sizeof(byte) is 32-bits. |
dgisselq |
2917d 16h |
/zipcpu/trunk/sw |
114 |
Fixes a bug that killed make binutils before the build-gas directory
was created. |
dgisselq |
2922d 17h |
/zipcpu/trunk/sw |
113 |
Bug fix: the Makefile wasn't building gcc, and the binutils would not allocate
space for common variables or zero'd (bss) variables properly. Several binutils
bugs were fixed to get variables to be allocated properly. Those are
reflected in this updated patch. |
dgisselq |
2922d 21h |
/zipcpu/trunk/sw |
112 |
Removed some debugging code from the compiler. |
dgisselq |
2925d 16h |
/zipcpu/trunk/sw |
111 |
Bug fix compiler update! This fixes a lot of the bugs associated with the
previous compiler release. |
dgisselq |
2925d 17h |
/zipcpu/trunk/sw |
110 |
The makefile no longer requires (or supports) building the obsolete machine
code test file optest. |
dgisselq |
2925d 17h |
/zipcpu/trunk/sw |
109 |
This file is now marked as obsolete. |
dgisselq |
2925d 17h |
/zipcpu/trunk/sw |
105 |
Fixed some nasty early branching bugs. Adjusted the Makefile to declare that
cpudefs.h was automatically generated from cpudefs.v, and made sure that
zipbones included the cpudefs.v so it could get the DEBUG_SCOPE define.
In addition, the test.S was updated to test long jumps, the early branching
bug we found, and all three early branching instructions: ADD #x,PC, LOC(PC),PC,
and LDI #x,PC. |
dgisselq |
2941d 17h |
/zipcpu/trunk/sw |
104 |
An updated build script, actually builds zip-gcc. |
dgisselq |
2942d 17h |
/zipcpu/trunk/sw |
103 |
A barely functional, but somewhat working, version of GCC to check in.
If the Lord is willing, it should be accompanied by a newlib port soon.
That port should move the GCC status from barely functional but somewhat
working to functional and working, although not (yet) complete. |
dgisselq |
2942d 22h |
/zipcpu/trunk/sw |
102 |
Updated bugfix version of the binutils patch, and a first patch of GCC.
The GCC patch is undergoing ongoing and active development. It is also known to
continue to contain active bugs. (It's not done yet.) |
dgisselq |
2945d 06h |
/zipcpu/trunk/sw |
101 |
Adjusted the "BREAK" instruction so that it will now disassemble properly
with an operand. This was necessary to create a (trap_if ...) instruction
for the GCC compiler. |
dgisselq |
2947d 09h |
/zipcpu/trunk/sw |