| Rev |
Log message |
Author |
Age |
Path |
| 107 |
Adding a missing file. |
dgisselq |
2988d 10h |
/zipcpu/trunk/doc |
| 106 |
Updated to allow building without the sources for the graphics used in the
document. |
dgisselq |
2988d 13h |
/zipcpu/trunk/doc |
| 92 |
Adjustments made to match the simplified early branching. |
dgisselq |
3034d 10h |
/zipcpu/trunk/doc |
| 85 |
Minor update/correction to operand B definition. |
dgisselq |
3060d 08h |
/zipcpu/trunk/doc |
| 79 |
Adjusted the opcodes for NOOP, BREAK, and LOCK. |
dgisselq |
3064d 12h |
/zipcpu/trunk/doc |
| 78 |
Found/corrected annoying bug in floating point documentation of the opcode
table. |
dgisselq |
3064d 12h |
/zipcpu/trunk/doc |
| 73 |
Documentations updates. |
dgisselq |
3065d 12h |
/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 |
3065d 12h |
/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 |
3071d 16h |
/zipcpu/trunk/doc |
| 68 |
Updated specification, includes well illustrated pipeline discussion. |
dgisselq |
3106d 17h |
/zipcpu/trunk/doc |
| 67 |
Includes timing diagrams in support of a very descriptive specification section. |
dgisselq |
3106d 17h |
/zipcpu/trunk/doc |
| 49 |
Final set of changes finishing the Dhrystone package. Dhrystone, as
implemented by hand in assembly, now works. |
dgisselq |
3152d 10h |
/zipcpu/trunk/doc |
| 47 |
Added some new graphics, includes the file for the Zip Bones system. |
dgisselq |
3152d 11h |
/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 |
3155d 13h |
/zipcpu/trunk/doc |
| 37 |
Fixed some minor spelling errors. |
dgisselq |
3164d 06h |
/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 |
3164d 19h |
/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 |
3181d 10h |
/zipcpu/trunk/doc |
| 33 |
Finally finished a first draft of the full specification! |
dgisselq |
3193d 12h |
/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 |
3193d 20h |
/zipcpu/trunk/doc |
| 24 |
Lots more changes to the spec. It's still not done, but it is more complete
than before. |
dgisselq |
3196d 21h |
/zipcpu/trunk/doc |
| 23 |
Oops -- left some portions of the RTC Clock spec in with the ZIP CPU spec.
These were quickly removed. |
dgisselq |
3198d 17h |
/zipcpu/trunk/doc |
| 22 |
|
dgisselq |
3198d 17h |
/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 |
3198d 17h |
/zipcpu/trunk/doc |
| 10 |
Here's the watchdog timer code, as well as some pictures of the register
set. |
dgisselq |
3219d 10h |
/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 |
3219d 16h |
/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 |
3219d 17h |
/zipcpu/trunk/doc |
| 6 |
Trying to move iset.html from gfx directory. |
dgisselq |
3219d 17h |
/zipcpu/trunk/doc |
| 5 |
Updated colors in the graphics. |
dgisselq |
3219d 17h |
/zipcpu/trunk/doc |
| 2 |
An initial load. No promises of what works or not, but this is where the
project is at. |
dgisselq |
3220d 11h |
/zipcpu/trunk/doc |
