| Rev |
Log message |
Author |
Age |
Path |
| 155 |
Improved debug trace quality, for finding bugs after the fact. |
dgisselq |
3234d 04h |
/zipcpu/ |
| 154 |
Added timing checks on the busy and valid signals: either one of the two is
valid, or the whole is idle. |
dgisselq |
3234d 04h |
/zipcpu/ |
| 153 |
Adds internal link functionality to the specification document format. |
dgisselq |
3234d 04h |
/zipcpu/ |
| 152 |
Updated to match the new/updated multiply instructions. Of course, this is
still hand optimized and not compiled--so it's not really a true and proper
test (yet), but ... it's what I have. |
dgisselq |
3267d 02h |
/zipcpu/ |
| 151 |
Minor formatting change. |
dgisselq |
3267d 02h |
/zipcpu/ |
| 150 |
Minor changes. |
dgisselq |
3267d 02h |
/zipcpu/ |
| 149 |
Updated the Makefile documentation and the all target. |
dgisselq |
3267d 02h |
/zipcpu/ |
| 148 |
Minor changes to get LONG_MPY working, and adjust the documentation. |
dgisselq |
3267d 02h |
/zipcpu/ |
| 147 |
Cleans up div_tb a bit, causing it to write SUCCESS out if successful and
abort if not. |
dgisselq |
3267d 02h |
/zipcpu/ |
| 146 |
Fixes a problem where the assembler complained the compiler was trying to
move .org backwards. This is now fixed. |
dgisselq |
3267d 02h |
/zipcpu/ |
| 145 |
This fixes the pipelined memory problem that was introduced a while back to
fix ... pipelined memory conflicts. This appears to maintain the success
of the fix, while recovering the pipeline memory performance that was had
before. |
dgisselq |
3267d 02h |
/zipcpu/ |
| 144 |
Makes the auto-reload capability a configuration option, and fills out the
reset so that it is properly implemented. |
dgisselq |
3267d 03h |
/zipcpu/ |
| 143 |
This section belatedly adjusts the zasm assembler so that it can handle
the LONG_MPY changes that have taken place. However, the test.S assembler
test script is still not properly testing the multiplies--at least it will
succeed on everything else. |
dgisselq |
3267d 03h |
/zipcpu/ |
| 142 |
Bug fix--fixes some problems with conditional execution, as well as removing
an unnecessary peephole optimization. |
dgisselq |
3268d 03h |
/zipcpu/ |
| 141 |
Fixes two bugs: one causing merged strings in the read only string section to
be referenced at the wrong address, and the second which caused the assembler
to fail at SYMBOL-OFFSET references. |
dgisselq |
3268d 03h |
/zipcpu/ |
| 140 |
Minor changes, but fixes build of zippy_tb.cpp. |
dgisselq |
3270d 16h |
/zipcpu/ |
| 139 |
Changes necessary to document the changed instruction set: LDIHI became MPY,
and MPYU and MPYS became MPYUHI and MPYSHI respectively. See the specification
for more details. |
dgisselq |
3273d 13h |
/zipcpu/ |
| 138 |
This updates the CPU multiply instruction into a set of three instructions.
MPY is a 32x32-bit multiply instruction, returning the low 32-bit result,
MPYUHI returns the upper 32-bits assuming the result was unsigned and MPYSHI
returns the upper 32-bits assuming the result was signed. |
dgisselq |
3273d 13h |
/zipcpu/ |
| 137 |
This should (again) fix the bug of trying to build optest.cpp. |
dgisselq |
3287d 07h |
/zipcpu/ |
| 136 |
Oops --- missed a couple HOST_WIDE_INT values in a printf. This casts them
to (long), so that we can work on both PC's and ARMs. |
dgisselq |
3287d 07h |
/zipcpu/ |
| 135 |
Replaced all occurrences of INTVAL(...) on printf lines with (long)INTVAL(...).
This should fix the problems zip-gcc was having while running on the ARM. |
dgisselq |
3287d 07h |
/zipcpu/ |
| 134 |
Working updates, to keep this up to date with the RTL code. |
dgisselq |
3288d 04h |
/zipcpu/ |
| 133 |
Changes preceding an instruction set update, which will change the multiply
operation from a 16x16 bit multiply to three types of 32x32-bit multiplies. |
dgisselq |
3288d 04h |
/zipcpu/ |
| 132 |
Lots of minor bug fixes. |
dgisselq |
3288d 04h |
/zipcpu/ |
| 131 |
Fixed a variable use before declaration error. |
dgisselq |
3288d 04h |
/zipcpu/ |
| 130 |
Simplified the lock logic, and removed it when pipelining was not defined. This
also means the file is now dependent upon cpudefs.v. In another change, brev
was modified so as not to update the flags. This makes it useable with GCC
as a potential move or load immediate instruction. |
dgisselq |
3288d 04h |
/zipcpu/ |
| 129 |
Bug fix. Fixes some ugly race conditions that would cause code from the wrong
address to be executed. |
dgisselq |
3288d 04h |
/zipcpu/ |
| 128 |
Cleaned up some comments. |
dgisselq |
3288d 04h |
/zipcpu/ |
| 127 |
Lots of changes and bugfixes. The disassembler produces more readable output.
The assembler and linker will no longer automatically use LDIHI--in preparation
for switching to LONG_MPY. LDIHI/LDILO pairs have been changed to BREV/LDILO
pairs. Within the compiler, conditional moves have been rebuilt. They're not
perfect yet, but they are better. Lots of peephole optimizations, etc. |
dgisselq |
3288d 04h |
/zipcpu/ |
| 126 |
Lots of changes preparing the assembly for an instruction set change. While
implemented, they are still commented out via #ifdef LONG_MPY. By defining
LONG_MPY, this new change set will take place. |
dgisselq |
3288d 04h |
/zipcpu/ |
