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

Subversion Repositories zipcpu

[/] [zipcpu/] [trunk/] - Rev 120

Rev

Go to most recent revision

Filtering Options

Clear current filter

Rev Log message Author Age Path
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 2368d 07h /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 2368d 08h /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 2368d 10h /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 2368d 18h /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 2368d 18h /zipcpu/trunk/
115 A bug fix, applies to when there are more than 9 interrupt lines into the CPU. dgisselq 2368d 18h /zipcpu/trunk/
114 Fixes a bug that killed make binutils before the build-gas directory
was created.
dgisselq 2373d 19h /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 2373d 22h /zipcpu/trunk/
112 Removed some debugging code from the compiler. dgisselq 2376d 18h /zipcpu/trunk/
111 Bug fix compiler update! This fixes a lot of the bugs associated with the
previous compiler release.
dgisselq 2376d 18h /zipcpu/trunk/
110 The makefile no longer requires (or supports) building the obsolete machine
code test file optest.
dgisselq 2376d 18h /zipcpu/trunk/
109 This file is now marked as obsolete. dgisselq 2376d 18h /zipcpu/trunk/
108 Just to clarify expectations ... this makefile hardly builds anything. dgisselq 2386d 20h /zipcpu/trunk/
107 Adding a missing file. dgisselq 2387d 11h /zipcpu/trunk/
106 Updated to allow building without the sources for the graphics used in the
document.
dgisselq 2387d 15h /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 2392d 18h /zipcpu/trunk/
104 An updated build script, actually builds zip-gcc. dgisselq 2393d 19h /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 2393d 23h /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 2396d 07h /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 2398d 10h /zipcpu/trunk/

1 2 Next >

Show All

powered by: WebSVN 2.1.0

© copyright 1999-2022 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.