| Rev |
Log message |
Author |
Age |
Path |
| 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 |
2737d 07h |
/zipcpu/trunk/sw/ |
| 112 |
Removed some debugging code from the compiler. |
dgisselq |
2740d 03h |
/zipcpu/trunk/sw/ |
| 111 |
Bug fix compiler update! This fixes a lot of the bugs associated with the
previous compiler release. |
dgisselq |
2740d 03h |
/zipcpu/trunk/sw/ |
| 110 |
The makefile no longer requires (or supports) building the obsolete machine
code test file optest. |
dgisselq |
2740d 03h |
/zipcpu/trunk/sw/ |
| 109 |
This file is now marked as obsolete. |
dgisselq |
2740d 03h |
/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 |
2756d 03h |
/zipcpu/trunk/sw/ |
| 104 |
An updated build script, actually builds zip-gcc. |
dgisselq |
2757d 03h |
/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 |
2757d 08h |
/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 |
2759d 16h |
/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 |
2761d 19h |
/zipcpu/trunk/sw/ |
| 100 |
Some changes to support early branching: branches are now ADD #x,PC instructions
instead of MOV #x(PC),PC--providing greater range to the CPU. When that range
is insufficient, ZPARSER now recognizes long jump instructions coded as
LOD (PC),PC followed by the jump address. (This change was made necessary by
the need to build an assembler/linker that could create instructions that would
jump to any address in the 32-bit address space. In short, a part of the
ongoing GCC upgrade and rework.) |
dgisselq |
2761d 19h |
/zipcpu/trunk/sw/ |
| 99 |
Added big-endian versus little-endian functionality. You can now specify which
your input file is as a command line parameter, and zdump will properly
disassemble the file. |
dgisselq |
2761d 19h |
/zipcpu/trunk/sw/ |
| 98 |
Added justed longjump instructions from the previous (not used, broken)
functionality to the new LOD (PC),PC functionality. |
dgisselq |
2761d 19h |
/zipcpu/trunk/sw/ |
| 97 |
Added longjump instructions. |
dgisselq |
2761d 19h |
/zipcpu/trunk/sw/ |
| 96 |
Added the longjump functionality, so that the assembler will properly assemble
instructions to arbitrary 32-bit addresses. |
dgisselq |
2761d 19h |
/zipcpu/trunk/sw/ |
| 95 |
Fixed a bug whereby a mistaken code for CLR was masking a valid LDI of a large
integer value. |
dgisselq |
2764d 01h |
/zipcpu/trunk/sw/ |
| 94 |
These changes make it possible to build binutils-2.25/ here in this
directory. "make binutils" should be all that is necessary to build the
entire binutils package for the Zip CPU.
The default configure script, run from gas-script.sh below, will build and
install these utilities in an install/ subdirectory made below sw/. |
dgisselq |
2788d 22h |
/zipcpu/trunk/sw/ |
| 93 |
A BINUTILS BACKEND IS NOW AVAILABLE!!!! |
dgisselq |
2796d 20h |
/zipcpu/trunk/sw/ |
| 89 |
Minor changes, to include making default branching an ADD.[condition] X,PC
instruction, rather than allowing both MOV X(PC),PC and ADD X,PC instructions.
Further zopcodes.cpp contains several bug fixes. |
dgisselq |
2796d 20h |
/zipcpu/trunk/sw/ |
| 70 |
Updated the assembler support files, zopcodes in particular, to handle
the disassembly of the new very long instruction word codes. |
dgisselq |
2827d 22h |
/zipcpu/trunk/sw/ |
