| Rev |
Log message |
Author |
Age |
Path |
| 155 |
Improved debug trace quality, for finding bugs after the fact. |
dgisselq |
2865d 06h |
/zipcpu/ |
| 154 |
Added timing checks on the busy and valid signals: either one of the two is
valid, or the whole is idle. |
dgisselq |
2865d 06h |
/zipcpu/ |
| 153 |
Adds internal link functionality to the specification document format. |
dgisselq |
2865d 06h |
/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 |
2898d 04h |
/zipcpu/ |
| 151 |
Minor formatting change. |
dgisselq |
2898d 04h |
/zipcpu/ |
| 150 |
Minor changes. |
dgisselq |
2898d 04h |
/zipcpu/ |
| 149 |
Updated the Makefile documentation and the all target. |
dgisselq |
2898d 04h |
/zipcpu/ |
| 148 |
Minor changes to get LONG_MPY working, and adjust the documentation. |
dgisselq |
2898d 04h |
/zipcpu/ |
| 147 |
Cleans up div_tb a bit, causing it to write SUCCESS out if successful and
abort if not. |
dgisselq |
2898d 04h |
/zipcpu/ |
| 146 |
Fixes a problem where the assembler complained the compiler was trying to
move .org backwards. This is now fixed. |
dgisselq |
2898d 04h |
/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 |
2898d 04h |
/zipcpu/ |
| 144 |
Makes the auto-reload capability a configuration option, and fills out the
reset so that it is properly implemented. |
dgisselq |
2898d 04h |
/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 |
2898d 04h |
/zipcpu/ |
| 142 |
Bug fix--fixes some problems with conditional execution, as well as removing
an unnecessary peephole optimization. |
dgisselq |
2899d 05h |
/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 |
2899d 05h |
/zipcpu/ |
| 140 |
Minor changes, but fixes build of zippy_tb.cpp. |
dgisselq |
2901d 18h |
/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 |
2904d 15h |
/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 |
2904d 15h |
/zipcpu/ |
| 137 |
This should (again) fix the bug of trying to build optest.cpp. |
dgisselq |
2918d 08h |
/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 |
2918d 09h |
/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 |
2918d 09h |
/zipcpu/ |
| 134 |
Working updates, to keep this up to date with the RTL code. |
dgisselq |
2919d 05h |
/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 |
2919d 05h |
/zipcpu/ |
| 132 |
Lots of minor bug fixes. |
dgisselq |
2919d 06h |
/zipcpu/ |
| 131 |
Fixed a variable use before declaration error. |
dgisselq |
2919d 06h |
/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 |
2919d 06h |
/zipcpu/ |
| 129 |
Bug fix. Fixes some ugly race conditions that would cause code from the wrong
address to be executed. |
dgisselq |
2919d 06h |
/zipcpu/ |
| 128 |
Cleaned up some comments. |
dgisselq |
2919d 06h |
/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 |
2919d 06h |
/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 |
2919d 06h |
/zipcpu/ |
