| Rev |
Log message |
Author |
Age |
Path |
| 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 |
2943d 19h |
/zipcpu/trunk |
| 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 |
2947d 15h |
/zipcpu/trunk |
| 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 |
2947d 15h |
/zipcpu/trunk |
| 118 |
Fixes two bugs: 1) in the early branching code within the instruction decoder.
This prevented the early branching from working when built with Xilinx's tools,
while the code worked with Verilator. 2) The CPU was not working with the
traditional cache and early branching disabled. These two bugs masked each
other. The replacement code is simpler. |
dgisselq |
2947d 18h |
/zipcpu/trunk |
| 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 |
2948d 01h |
/zipcpu/trunk |
| 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 |
2948d 02h |
/zipcpu/trunk |
| 115 |
A bug fix, applies to when there are more than 9 interrupt lines into the CPU. |
dgisselq |
2948d 02h |
/zipcpu/trunk |
| 114 |
Fixes a bug that killed make binutils before the build-gas directory
was created. |
dgisselq |
2953d 03h |
/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 |
2953d 06h |
/zipcpu/trunk |
| 112 |
Removed some debugging code from the compiler. |
dgisselq |
2956d 02h |
/zipcpu/trunk |
| 111 |
Bug fix compiler update! This fixes a lot of the bugs associated with the
previous compiler release. |
dgisselq |
2956d 02h |
/zipcpu/trunk |
| 110 |
The makefile no longer requires (or supports) building the obsolete machine
code test file optest. |
dgisselq |
2956d 02h |
/zipcpu/trunk |
| 109 |
This file is now marked as obsolete. |
dgisselq |
2956d 02h |
/zipcpu/trunk |
| 108 |
Just to clarify expectations ... this makefile hardly builds anything. |
dgisselq |
2966d 04h |
/zipcpu/trunk |
| 107 |
Adding a missing file. |
dgisselq |
2966d 19h |
/zipcpu/trunk |
| 106 |
Updated to allow building without the sources for the graphics used in the
document. |
dgisselq |
2966d 22h |
/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 |
2972d 02h |
/zipcpu/trunk |
| 104 |
An updated build script, actually builds zip-gcc. |
dgisselq |
2973d 02h |
/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 |
2973d 07h |
/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 |
2975d 15h |
/zipcpu/trunk |
