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[/] [zipcpu/] [trunk/] [doc/] - Rev 42

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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 2626d 12h /zipcpu/trunk/doc/
37 Fixed some minor spelling errors. dgisselq 2635d 05h /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 2635d 17h /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 2652d 08h /zipcpu/trunk/doc/
33 Finally finished a first draft of the full specification! dgisselq 2664d 11h /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 2664d 18h /zipcpu/trunk/doc/
24 Lots more changes to the spec. It's still not done, but it is more complete
than before.
dgisselq 2667d 19h /zipcpu/trunk/doc/
23 Oops -- left some portions of the RTC Clock spec in with the ZIP CPU spec.
These were quickly removed.
dgisselq 2669d 15h /zipcpu/trunk/doc/
22 dgisselq 2669d 15h /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 2669d 15h /zipcpu/trunk/doc/
10 Here's the watchdog timer code, as well as some pictures of the register
set.
dgisselq 2690d 08h /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 2690d 15h /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 2690d 16h /zipcpu/trunk/doc/
6 Trying to move iset.html from gfx directory. dgisselq 2690d 16h /zipcpu/trunk/doc/
5 Updated colors in the graphics. dgisselq 2690d 16h /zipcpu/trunk/doc/
2 An initial load. No promises of what works or not, but this is where the
project is at.
dgisselq 2691d 09h /zipcpu/trunk/doc/

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