OpenCores
URL https://opencores.org/ocsvn/zipcpu/zipcpu/trunk

Subversion Repositories zipcpu

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

Rev

Go to most recent revision

Filtering Options

Clear current filter

Rev Log message Author Age Path
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 2474d 08h /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 2490d 23h /zipcpu/trunk/doc/
33 Finally finished a first draft of the full specification! dgisselq 2503d 01h /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 2503d 09h /zipcpu/trunk/doc/
24 Lots more changes to the spec. It's still not done, but it is more complete
than before.
dgisselq 2506d 10h /zipcpu/trunk/doc/
23 Oops -- left some portions of the RTC Clock spec in with the ZIP CPU spec.
These were quickly removed.
dgisselq 2508d 06h /zipcpu/trunk/doc/
22 dgisselq 2508d 06h /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 2508d 06h /zipcpu/trunk/doc/
10 Here's the watchdog timer code, as well as some pictures of the register
set.
dgisselq 2528d 23h /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 2529d 05h /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 2529d 06h /zipcpu/trunk/doc/
6 Trying to move iset.html from gfx directory. dgisselq 2529d 06h /zipcpu/trunk/doc/
5 Updated colors in the graphics. dgisselq 2529d 06h /zipcpu/trunk/doc/
2 An initial load. No promises of what works or not, but this is where the
project is at.
dgisselq 2530d 00h /zipcpu/trunk/doc/

powered by: WebSVN 2.1.0

© copyright 1999-2022 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.