| Rev |
Log message |
Author |
Age |
Path |
| 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 |
2953d 06h |
/zipcpu/trunk/ |
| 115 |
A bug fix, applies to when there are more than 9 interrupt lines into the CPU. |
dgisselq |
2953d 06h |
/zipcpu/trunk/ |
| 114 |
Fixes a bug that killed make binutils before the build-gas directory
was created. |
dgisselq |
2958d 07h |
/zipcpu/trunk/ |
| 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 |
2958d 10h |
/zipcpu/trunk/ |
| 112 |
Removed some debugging code from the compiler. |
dgisselq |
2961d 06h |
/zipcpu/trunk/ |
| 111 |
Bug fix compiler update! This fixes a lot of the bugs associated with the
previous compiler release. |
dgisselq |
2961d 07h |
/zipcpu/trunk/ |
| 110 |
The makefile no longer requires (or supports) building the obsolete machine
code test file optest. |
dgisselq |
2961d 07h |
/zipcpu/trunk/ |
| 109 |
This file is now marked as obsolete. |
dgisselq |
2961d 07h |
/zipcpu/trunk/ |
| 108 |
Just to clarify expectations ... this makefile hardly builds anything. |
dgisselq |
2971d 08h |
/zipcpu/trunk/ |
| 107 |
Adding a missing file. |
dgisselq |
2971d 23h |
/zipcpu/trunk/ |
| 106 |
Updated to allow building without the sources for the graphics used in the
document. |
dgisselq |
2972d 03h |
/zipcpu/trunk/ |
| 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 |
2977d 07h |
/zipcpu/trunk/ |
| 104 |
An updated build script, actually builds zip-gcc. |
dgisselq |
2978d 07h |
/zipcpu/trunk/ |
| 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 |
2978d 11h |
/zipcpu/trunk/ |
| 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 |
2980d 20h |
/zipcpu/trunk/ |
| 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 |
2982d 23h |
/zipcpu/trunk/ |
| 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 |
2982d 23h |
/zipcpu/trunk/ |
| 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 |
2982d 23h |
/zipcpu/trunk/ |
| 98 |
Added justed longjump instructions from the previous (not used, broken)
functionality to the new LOD (PC),PC functionality. |
dgisselq |
2982d 23h |
/zipcpu/trunk/ |
| 97 |
Added longjump instructions. |
dgisselq |
2982d 23h |
/zipcpu/trunk/ |
| 96 |
Added the longjump functionality, so that the assembler will properly assemble
instructions to arbitrary 32-bit addresses. |
dgisselq |
2982d 23h |
/zipcpu/trunk/ |
| 95 |
Fixed a bug whereby a mistaken code for CLR was masking a valid LDI of a large
integer value. |
dgisselq |
2985d 05h |
/zipcpu/trunk/ |
| 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 |
3010d 02h |
/zipcpu/trunk/ |
| 93 |
A BINUTILS BACKEND IS NOW AVAILABLE!!!! |
dgisselq |
3018d 00h |
/zipcpu/trunk/ |
| 92 |
Adjustments made to match the simplified early branching. |
dgisselq |
3018d 00h |
/zipcpu/trunk/ |
| 91 |
Minor updates. |
dgisselq |
3018d 00h |
/zipcpu/trunk/ |
| 90 |
Removed MOV x(PC),PC from the list of possible early branching instructions.
ADD X,PC and LDI X,PC are now the only recognized early branching instructions.
This was done to spare logic, although I don't think I spared more than a
LUT or two. |
dgisselq |
3018d 00h |
/zipcpu/trunk/ |
| 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 |
3018d 00h |
/zipcpu/trunk/ |
| 88 |
Eliminated some warnings. The div fixes were to simplify the logic, even though
the result is less readable ... |
dgisselq |
3042d 00h |
/zipcpu/trunk/ |
| 87 |
Adjusted the operator input line to reflect actual logic inputs, rather
than the registered inputs which may have been out of date. (Indeed, they
were out of date for the bug I was chasing and fixed ...) |
dgisselq |
3043d 22h |
/zipcpu/trunk/ |
