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[/] [zipcpu/] [trunk/] [doc/] - Rev 36

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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 3287d 06h /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 3303d 20h /zipcpu/trunk/doc/
33 Finally finished a first draft of the full specification! dgisselq 3315d 23h /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 3316d 07h /zipcpu/trunk/doc/
24 Lots more changes to the spec. It's still not done, but it is more complete
than before.		 dgisselq 3319d 08h /zipcpu/trunk/doc/
23 Oops -- left some portions of the RTC Clock spec in with the ZIP CPU spec.
These were quickly removed.		 dgisselq 3321d 04h /zipcpu/trunk/doc/
22 dgisselq 3321d 04h /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 3321d 04h /zipcpu/trunk/doc/
10 Here's the watchdog timer code, as well as some pictures of the register
set.		 dgisselq 3341d 21h /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 3342d 03h /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 3342d 04h /zipcpu/trunk/doc/
6 Trying to move iset.html from gfx directory. dgisselq 3342d 04h /zipcpu/trunk/doc/
5 Updated colors in the graphics. dgisselq 3342d 04h /zipcpu/trunk/doc/
2 An initial load. No promises of what works or not, but this is where the
project is at.		 dgisselq 3342d 21h /zipcpu/trunk/doc/

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