| Rev |
Log message |
Author |
Age |
Path |
| 107 |
Adding a missing file. |
dgisselq |
3563d 19h |
/zipcpu/trunk/doc/ |
| 106 |
Updated to allow building without the sources for the graphics used in the
document. |
dgisselq |
3563d 23h |
/zipcpu/trunk/doc/ |
| 92 |
Adjustments made to match the simplified early branching. |
dgisselq |
3609d 20h |
/zipcpu/trunk/doc/ |
| 85 |
Minor update/correction to operand B definition. |
dgisselq |
3635d 18h |
/zipcpu/trunk/doc/ |
| 79 |
Adjusted the opcodes for NOOP, BREAK, and LOCK. |
dgisselq |
3639d 22h |
/zipcpu/trunk/doc/ |
| 78 |
Found/corrected annoying bug in floating point documentation of the opcode
table. |
dgisselq |
3639d 22h |
/zipcpu/trunk/doc/ |
| 73 |
Documentations updates. |
dgisselq |
3640d 21h |
/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 |
3640d 21h |
/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 |
3647d 02h |
/zipcpu/trunk/doc/ |
| 68 |
Updated specification, includes well illustrated pipeline discussion. |
dgisselq |
3682d 02h |
/zipcpu/trunk/doc/ |
| 67 |
Includes timing diagrams in support of a very descriptive specification section. |
dgisselq |
3682d 02h |
/zipcpu/trunk/doc/ |
| 49 |
Final set of changes finishing the Dhrystone package. Dhrystone, as
implemented by hand in assembly, now works. |
dgisselq |
3727d 20h |
/zipcpu/trunk/doc/ |
| 47 |
Added some new graphics, includes the file for the Zip Bones system. |
dgisselq |
3727d 20h |
/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 |
3730d 23h |
/zipcpu/trunk/doc/ |
| 37 |
Fixed some minor spelling errors. |
dgisselq |
3739d 16h |
/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 |
3740d 05h |
/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 |
3756d 19h |
/zipcpu/trunk/doc/ |
| 33 |
Finally finished a first draft of the full specification! |
dgisselq |
3768d 22h |
/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 |
3769d 06h |
/zipcpu/trunk/doc/ |
| 24 |
Lots more changes to the spec. It's still not done, but it is more complete
than before. |
dgisselq |
3772d 07h |
/zipcpu/trunk/doc/ |
| 23 |
Oops -- left some portions of the RTC Clock spec in with the ZIP CPU spec.
These were quickly removed. |
dgisselq |
3774d 02h |
/zipcpu/trunk/doc/ |
| 22 |
|
dgisselq |
3774d 02h |
/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 |
3774d 02h |
/zipcpu/trunk/doc/ |
| 10 |
Here's the watchdog timer code, as well as some pictures of the register
set. |
dgisselq |
3794d 19h |
/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 |
3795d 02h |
/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 |
3795d 03h |
/zipcpu/trunk/doc/ |
| 6 |
Trying to move iset.html from gfx directory. |
dgisselq |
3795d 03h |
/zipcpu/trunk/doc/ |
| 5 |
Updated colors in the graphics. |
dgisselq |
3795d 03h |
/zipcpu/trunk/doc/ |
| 2 |
An initial load. No promises of what works or not, but this is where the
project is at. |
dgisselq |
3795d 20h |
/zipcpu/trunk/doc/ |
