| Rev |
Log message |
Author |
Age |
Path |
| 107 |
Adding a missing file. |
dgisselq |
3126d 04h |
/zipcpu/trunk/doc/ |
| 106 |
Updated to allow building without the sources for the graphics used in the
document. |
dgisselq |
3126d 08h |
/zipcpu/trunk/doc/ |
| 92 |
Adjustments made to match the simplified early branching. |
dgisselq |
3172d 04h |
/zipcpu/trunk/doc/ |
| 85 |
Minor update/correction to operand B definition. |
dgisselq |
3198d 03h |
/zipcpu/trunk/doc/ |
| 79 |
Adjusted the opcodes for NOOP, BREAK, and LOCK. |
dgisselq |
3202d 07h |
/zipcpu/trunk/doc/ |
| 78 |
Found/corrected annoying bug in floating point documentation of the opcode
table. |
dgisselq |
3202d 07h |
/zipcpu/trunk/doc/ |
| 73 |
Documentations updates. |
dgisselq |
3203d 06h |
/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 |
3203d 06h |
/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 |
3209d 11h |
/zipcpu/trunk/doc/ |
| 68 |
Updated specification, includes well illustrated pipeline discussion. |
dgisselq |
3244d 11h |
/zipcpu/trunk/doc/ |
| 67 |
Includes timing diagrams in support of a very descriptive specification section. |
dgisselq |
3244d 11h |
/zipcpu/trunk/doc/ |
| 49 |
Final set of changes finishing the Dhrystone package. Dhrystone, as
implemented by hand in assembly, now works. |
dgisselq |
3290d 05h |
/zipcpu/trunk/doc/ |
| 47 |
Added some new graphics, includes the file for the Zip Bones system. |
dgisselq |
3290d 05h |
/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 |
3293d 08h |
/zipcpu/trunk/doc/ |
| 37 |
Fixed some minor spelling errors. |
dgisselq |
3302d 01h |
/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 |
3302d 13h |
/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 |
3319d 04h |
/zipcpu/trunk/doc/ |
| 33 |
Finally finished a first draft of the full specification! |
dgisselq |
3331d 07h |
/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 |
3331d 14h |
/zipcpu/trunk/doc/ |
| 24 |
Lots more changes to the spec. It's still not done, but it is more complete
than before. |
dgisselq |
3334d 15h |
/zipcpu/trunk/doc/ |
| 23 |
Oops -- left some portions of the RTC Clock spec in with the ZIP CPU spec.
These were quickly removed. |
dgisselq |
3336d 11h |
/zipcpu/trunk/doc/ |
| 22 |
|
dgisselq |
3336d 11h |
/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 |
3336d 11h |
/zipcpu/trunk/doc/ |
| 10 |
Here's the watchdog timer code, as well as some pictures of the register
set. |
dgisselq |
3357d 04h |
/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 |
3357d 11h |
/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 |
3357d 12h |
/zipcpu/trunk/doc/ |
| 6 |
Trying to move iset.html from gfx directory. |
dgisselq |
3357d 12h |
/zipcpu/trunk/doc/ |
| 5 |
Updated colors in the graphics. |
dgisselq |
3357d 12h |
/zipcpu/trunk/doc/ |
| 2 |
An initial load. No promises of what works or not, but this is where the
project is at. |
dgisselq |
3358d 05h |
/zipcpu/trunk/doc/ |
