| Rev |
Log message |
Author |
Age |
Path |
| 107 |
Adding a missing file. |
dgisselq |
2971d 23h |
/zipcpu/trunk/doc/ |
| 106 |
Updated to allow building without the sources for the graphics used in the
document. |
dgisselq |
2972d 03h |
/zipcpu/trunk/doc/ |
| 92 |
Adjustments made to match the simplified early branching. |
dgisselq |
3018d 00h |
/zipcpu/trunk/doc/ |
| 85 |
Minor update/correction to operand B definition. |
dgisselq |
3043d 22h |
/zipcpu/trunk/doc/ |
| 79 |
Adjusted the opcodes for NOOP, BREAK, and LOCK. |
dgisselq |
3048d 02h |
/zipcpu/trunk/doc/ |
| 78 |
Found/corrected annoying bug in floating point documentation of the opcode
table. |
dgisselq |
3048d 02h |
/zipcpu/trunk/doc/ |
| 73 |
Documentations updates. |
dgisselq |
3049d 01h |
/zipcpu/trunk/doc/ |
| 72 |
Some updated graphics, now containing images of the CPU that include the
divide and (currently non-existant) floating point unit. |
dgisselq |
3049d 01h |
/zipcpu/trunk/doc/ |
| 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 |
3055d 06h |
/zipcpu/trunk/doc/ |
| 68 |
Updated specification, includes well illustrated pipeline discussion. |
dgisselq |
3090d 06h |
/zipcpu/trunk/doc/ |
| 67 |
Includes timing diagrams in support of a very descriptive specification section. |
dgisselq |
3090d 06h |
/zipcpu/trunk/doc/ |
| 49 |
Final set of changes finishing the Dhrystone package. Dhrystone, as
implemented by hand in assembly, now works. |
dgisselq |
3136d 00h |
/zipcpu/trunk/doc/ |
| 47 |
Added some new graphics, includes the file for the Zip Bones system. |
dgisselq |
3136d 00h |
/zipcpu/trunk/doc/ |
| 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 |
3139d 03h |
/zipcpu/trunk/doc/ |
| 37 |
Fixed some minor spelling errors. |
dgisselq |
3147d 20h |
/zipcpu/trunk/doc/ |
| 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 |
3148d 09h |
/zipcpu/trunk/doc/ |
| 35 |
I updated the system diagram to reflect the new version that has a direct
memory access controller, rather than the (useless) manual cache. |
dgisselq |
3164d 23h |
/zipcpu/trunk/doc/ |
| 33 |
Finally finished a first draft of the full specification! |
dgisselq |
3177d 02h |
/zipcpu/trunk/doc/ |
| 32 |
Updated the document to match the most recent changes to the CPU. Specifically,
these include the re-instatement of the full SUB command with immediate offset,
and ... others I cannot remember.
The new document also describes what conditions create pipeline stalls,
together with how many cycles each stall condition will create. |
dgisselq |
3177d 09h |
/zipcpu/trunk/doc/ |
| 24 |
Lots more changes to the spec. It's still not done, but it is more complete
than before. |
dgisselq |
3180d 10h |
/zipcpu/trunk/doc/ |
| 23 |
Oops -- left some portions of the RTC Clock spec in with the ZIP CPU spec.
These were quickly removed. |
dgisselq |
3182d 06h |
/zipcpu/trunk/doc/ |
| 22 |
|
dgisselq |
3182d 06h |
/zipcpu/trunk/doc/ |
| 21 |
This update adds an incomplete version of the specification for the chip.
I ned to come back to this and do a lot more writing, but it is a start. |
dgisselq |
3182d 06h |
/zipcpu/trunk/doc/ |
| 10 |
Here's the watchdog timer code, as well as some pictures of the register
set. |
dgisselq |
3202d 23h |
/zipcpu/trunk/doc/ |
| 8 |
Fixed the rotate left instruction to work in the zasm parser, and to be
properly referenced in the simulator. The instruction set documentation was
also adjusted to reflect what the CPU actually does. |
dgisselq |
3203d 06h |
/zipcpu/trunk/doc/ |
| 7 |
Here's the iset.html file that was at one time in the gfx directory, but
which could not be moved due to a bad gateway error ... (Grrr). |
dgisselq |
3203d 07h |
/zipcpu/trunk/doc/ |
| 6 |
Trying to move iset.html from gfx directory. |
dgisselq |
3203d 07h |
/zipcpu/trunk/doc/ |
| 5 |
Updated colors in the graphics. |
dgisselq |
3203d 07h |
/zipcpu/trunk/doc/ |
| 2 |
An initial load. No promises of what works or not, but this is where the
project is at. |
dgisselq |
3204d 00h |
/zipcpu/trunk/doc/ |
