| Rev |
Log message |
Author |
Age |
Path |
| 87 |
Adjusted the operator input line to reflect actual logic inputs, rather
than the registered inputs which may have been out of date. (Indeed, they
were out of date for the bug I was chasing and fixed ...) |
dgisselq |
3235d 09h |
/zipcpu/trunk/bench/ |
| 86 |
Removed the requirement to have the dev.scope.cpu hardware defined outside
of the Zip CPU (it was defined in another project). This was causing a bus
error in the simulator (which it should have), but taking it out fixes things
in the simulator (while removing capability from one special piece of H/W). |
dgisselq |
3235d 09h |
/zipcpu/trunk/bench/ |
| 77 |
First check-in: the test bench for the divide instruction. |
dgisselq |
3240d 12h |
/zipcpu/trunk/bench/ |
| 76 |
The biggest change here was to zippy_tb, to make it more similar to the debugger
and to make it work with VLIW-type instructions. |
dgisselq |
3240d 13h |
/zipcpu/trunk/bench/ |
| 75 |
Modified for VLIW instructions. |
dgisselq |
3240d 13h |
/zipcpu/trunk/bench/ |
| 74 |
Added a bunch of debugging code to the Dhrystone benchmark assembly file, as
well as two new testing assembly files. |
dgisselq |
3240d 13h |
/zipcpu/trunk/bench/ |
| 69 |
This implements the "new Instruction Set" architecture for the Zip CPU. It's
a massive change set, that touches just about everything but probably not
enough of everything. Please see the spec.pdf for a description of this
new architecture. |
dgisselq |
3246d 17h |
/zipcpu/trunk/bench/ |
| 58 |
Added a rudimentary profiling support to the simulator. |
dgisselq |
3307d 18h |
/zipcpu/trunk/bench/ |
| 57 |
Some bug fixes to the dhrystone benchmark, and some compile time defines for
the test bench processor. Of the most important note is the fix to detect
lockups on the debug/wishbone bus--that has been a real help in getting the
ZipCPU installed and the debugger working on the various boards I'm working
with. (i.e., it's helped me find and figure out why/when things haven't worked)
Of other note is the new 'G' key in the testbench code, to cause the test
bench to run without user interaction until the next keystroke. This is
very valuable in long programs, as it makes getting to/from breakpoints
easier (i.e. you don't have to wait as long, hit 'G', breathe, hit 'space'
and you're there). |
dgisselq |
3317d 20h |
/zipcpu/trunk/bench/ |
| 50 |
Dhrystone benchmark updates--added the copyright notice. (Oops!) |
dgisselq |
3327d 11h |
/zipcpu/trunk/bench/ |
| 43 |
Minor edits to the C++ testbench. |
dgisselq |
3327d 12h |
/zipcpu/trunk/bench/ |
| 42 |
Oops -- forgot to add the stack. |
dgisselq |
3327d 12h |
/zipcpu/trunk/bench/ |
| 41 |
Assembly file for the Dhrystone benchmark added. |
dgisselq |
3327d 12h |
/zipcpu/trunk/bench/ |
| 40 |
Quick update, updates the assembly for the new version of the assembler. |
dgisselq |
3327d 12h |
/zipcpu/trunk/bench/ |
| 39 |
Here's the documentation update to support the pipelined read/writes of
the bus from the CPU, as well as the test file that proved they worked. |
dgisselq |
3330d 15h |
/zipcpu/trunk/bench/ |
| 36 |
*Lots* of changes to increase processing speed and remove pipeline stalls.
Removed the useless flash cache, replacing it with a proper DMA controller.
"make test" in the main directory now runs a test program in Verilator and
reports on the results. |
dgisselq |
3339d 20h |
/zipcpu/trunk/bench/ |
| 34 |
Bunches of changes, although very little changed with the core itself.
Regarding the core, some bugs were fixed within zipcpu.v (the CPU part of the
core), so that the debugger can change the program counter. The debugger
can now halt the CPU and then view, examine, and modify registers to include
the program counter, although live changes to the CC register have not been
tested.
There was also a bug in the stall handling of the wishbone bus delay line. This
has now been fixed.
Moving outwards to the system, some parameters have been added to zipsystem
to make it more configurable for whatever environment you might wish to place
it within. Other minor clean ups have taken place, mostly to the internal
documentation.
Lots of changes, though, to the assembler. The big one is the implementation
of #define macros, C style. Several buggy macros were in sys.i. These have
been fixed. The Makefile has been adjusted so that the build of test.S, which
depends upon sys.i, is now properly dependent upon sys.i for make purposes.
Further, not only will zpp, the assembler preprocessor, handle #define macros,
it will also recursive #defines. The assembler expression evaluator has also
been updated to properly handle both operator precedence, as well as modulo
arithmetic.
The master system test file, test.S, found in the sw/zasm directory has been
updated to reflect these new capabilities. (I really need to move it to the
bench/asm directory, so you may expect that change sometime later.) |
dgisselq |
3365d 15h |
/zipcpu/trunk/bench/ |
| 27 |
The big change to the test bench code in this directory is the support for
non-interactive operation. The test bench will now run in non-interactive
mode until either the CPU HALT's or executes a BUSY instruction. A 'HALT'
is deemed a test success, whereas a BUSY is deemed a test failure.
A usage() statement now informs the user what commands are available while
running the test bench interactively. (It looks a lot like the debugger looks
like, should you manage to get that up and running.)
The make file now also supports interactive and non-interactive testing via
the 'make itest' and 'make test' targets respectively. |
dgisselq |
3369d 08h |
/zipcpu/trunk/bench/ |
| 12 |
Bunch of changes while trying to get a hello world program:
1. Right shifts by 32 or more now result in zero, or all of the top bit in the
case of ASRs.
2. zdump now properly includes addresses with dumped lines.
3. zparser now properly handles immediate values via the .DAT instruction. |
dgisselq |
3393d 13h |
/zipcpu/trunk/bench/ |
| 11 |
This version works on an FPGA!!!
(Or at least the wdt.S program passes ...) |
dgisselq |
3393d 21h |
/zipcpu/trunk/bench/ |
