| Rev |
Log message |
Author |
Age |
Path |
| 164 |
Updated with inputs from Hellwig Geisse regarding the details of the ECO32
CPU. |
dgisselq |
2856d 18h |
/zipcpu/ |
| 163 |
Trimmed OR1K instruction set down from 219 instructions, to the minimum number
of 48. Thanks to Olof for helping identify the minimal set! |
dgisselq |
2864d 20h |
/zipcpu/ |
| 162 |
Noted 64-bit integers are by extension, as are vector instructions. |
dgisselq |
2864d 21h |
/zipcpu/ |
| 161 |
Initial version of the ORConf slides, showing only the initial CPU survey. |
dgisselq |
2864d 21h |
/zipcpu/ |
| 160 |
Logic updates, and bug fix corrections to bring this in line with the current
XuLA2-LX25 SoC version. (i.e., the XuLA version was debugged and improved,
this update pushes those improvements to the mainline.) |
dgisselq |
2880d 08h |
/zipcpu/ |
| 159 |
Now supports building a simulator that can load ELF files, such as GCC and/or
binutils will produce. |
dgisselq |
2880d 08h |
/zipcpu/ |
| 158 |
Now automatically builds the toolchain by default. |
dgisselq |
2880d 08h |
/zipcpu/ |
| 157 |
Added the divide unit to the list of ZipCPU dependencies. |
dgisselq |
2880d 08h |
/zipcpu/ |
| 156 |
Fixed a compiler warning for an unused result. |
dgisselq |
2880d 09h |
/zipcpu/ |
| 155 |
Improved debug trace quality, for finding bugs after the fact. |
dgisselq |
2880d 09h |
/zipcpu/ |
| 154 |
Added timing checks on the busy and valid signals: either one of the two is
valid, or the whole is idle. |
dgisselq |
2880d 09h |
/zipcpu/ |
| 153 |
Adds internal link functionality to the specification document format. |
dgisselq |
2880d 09h |
/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 |
2913d 07h |
/zipcpu/ |
| 151 |
Minor formatting change. |
dgisselq |
2913d 07h |
/zipcpu/ |
| 150 |
Minor changes. |
dgisselq |
2913d 07h |
/zipcpu/ |
| 149 |
Updated the Makefile documentation and the all target. |
dgisselq |
2913d 07h |
/zipcpu/ |
| 148 |
Minor changes to get LONG_MPY working, and adjust the documentation. |
dgisselq |
2913d 07h |
/zipcpu/ |
| 147 |
Cleans up div_tb a bit, causing it to write SUCCESS out if successful and
abort if not. |
dgisselq |
2913d 07h |
/zipcpu/ |
| 146 |
Fixes a problem where the assembler complained the compiler was trying to
move .org backwards. This is now fixed. |
dgisselq |
2913d 07h |
/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 |
2913d 07h |
/zipcpu/ |
| 144 |
Makes the auto-reload capability a configuration option, and fills out the
reset so that it is properly implemented. |
dgisselq |
2913d 07h |
/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 |
2913d 07h |
/zipcpu/ |
| 142 |
Bug fix--fixes some problems with conditional execution, as well as removing
an unnecessary peephole optimization. |
dgisselq |
2914d 08h |
/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 |
2914d 08h |
/zipcpu/ |
| 140 |
Minor changes, but fixes build of zippy_tb.cpp. |
dgisselq |
2916d 21h |
/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 |
2919d 18h |
/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 |
2919d 18h |
/zipcpu/ |
| 137 |
This should (again) fix the bug of trying to build optest.cpp. |
dgisselq |
2933d 11h |
/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 |
2933d 12h |
/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 |
2933d 12h |
/zipcpu/ |
