| Rev |
Log message |
Author |
Age |
Path |
| 107 |
Adding a missing file. |
dgisselq |
2987d 18h |
/zipcpu/trunk/doc/ |
| 106 |
Updated to allow building without the sources for the graphics used in the
document. |
dgisselq |
2987d 21h |
/zipcpu/trunk/doc/ |
| 92 |
Adjustments made to match the simplified early branching. |
dgisselq |
3033d 18h |
/zipcpu/trunk/doc/ |
| 85 |
Minor update/correction to operand B definition. |
dgisselq |
3059d 16h |
/zipcpu/trunk/doc/ |
| 79 |
Adjusted the opcodes for NOOP, BREAK, and LOCK. |
dgisselq |
3063d 20h |
/zipcpu/trunk/doc/ |
| 78 |
Found/corrected annoying bug in floating point documentation of the opcode
table. |
dgisselq |
3063d 20h |
/zipcpu/trunk/doc/ |
| 73 |
Documentations updates. |
dgisselq |
3064d 20h |
/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 |
3064d 20h |
/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 00h |
/zipcpu/trunk/doc/ |
| 68 |
Updated specification, includes well illustrated pipeline discussion. |
dgisselq |
3106d 01h |
/zipcpu/trunk/doc/ |
| 67 |
Includes timing diagrams in support of a very descriptive specification section. |
dgisselq |
3106d 01h |
/zipcpu/trunk/doc/ |
| 49 |
Final set of changes finishing the Dhrystone package. Dhrystone, as
implemented by hand in assembly, now works. |
dgisselq |
3151d 18h |
/zipcpu/trunk/doc/ |
| 47 |
Added some new graphics, includes the file for the Zip Bones system. |
dgisselq |
3151d 19h |
/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 |
3154d 22h |
/zipcpu/trunk/doc/ |
| 37 |
Fixed some minor spelling errors. |
dgisselq |
3163d 14h |
/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 03h |
/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 |
3180d 18h |
/zipcpu/trunk/doc/ |
| 33 |
Finally finished a first draft of the full specification! |
dgisselq |
3192d 20h |
/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 04h |
/zipcpu/trunk/doc/ |
| 24 |
Lots more changes to the spec. It's still not done, but it is more complete
than before. |
dgisselq |
3196d 05h |
/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 01h |
/zipcpu/trunk/doc/ |
| 22 |
|
dgisselq |
3198d 01h |
/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 01h |
/zipcpu/trunk/doc/ |
| 10 |
Here's the watchdog timer code, as well as some pictures of the register
set. |
dgisselq |
3218d 18h |
/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 00h |
/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 01h |
/zipcpu/trunk/doc/ |
| 6 |
Trying to move iset.html from gfx directory. |
dgisselq |
3219d 01h |
/zipcpu/trunk/doc/ |
| 5 |
Updated colors in the graphics. |
dgisselq |
3219d 02h |
/zipcpu/trunk/doc/ |
| 2 |
An initial load. No promises of what works or not, but this is where the
project is at. |
dgisselq |
3219d 19h |
/zipcpu/trunk/doc/ |
