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

Subversion Repositories zipcpu

[/] [zipcpu/] [trunk/] [doc/] - Rev 111

Rev

Go to most recent revision

Filtering Options

Clear current filter

Rev Log message Author Age Path
107 Adding a missing file. dgisselq 2343d 07h /zipcpu/trunk/doc/
106 Updated to allow building without the sources for the graphics used in the
document.
dgisselq 2343d 11h /zipcpu/trunk/doc/
92 Adjustments made to match the simplified early branching. dgisselq 2389d 08h /zipcpu/trunk/doc/
85 Minor update/correction to operand B definition. dgisselq 2415d 06h /zipcpu/trunk/doc/
79 Adjusted the opcodes for NOOP, BREAK, and LOCK. dgisselq 2419d 10h /zipcpu/trunk/doc/
78 Found/corrected annoying bug in floating point documentation of the opcode
table.
dgisselq 2419d 10h /zipcpu/trunk/doc/
73 Documentations updates. dgisselq 2420d 09h /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 2420d 09h /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 2426d 14h /zipcpu/trunk/doc/
68 Updated specification, includes well illustrated pipeline discussion. dgisselq 2461d 14h /zipcpu/trunk/doc/
67 Includes timing diagrams in support of a very descriptive specification section. dgisselq 2461d 14h /zipcpu/trunk/doc/
49 Final set of changes finishing the Dhrystone package. Dhrystone, as
implemented by hand in assembly, now works.
dgisselq 2507d 08h /zipcpu/trunk/doc/
47 Added some new graphics, includes the file for the Zip Bones system. dgisselq 2507d 08h /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 2510d 11h /zipcpu/trunk/doc/
37 Fixed some minor spelling errors. dgisselq 2519d 04h /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 2519d 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 2536d 07h /zipcpu/trunk/doc/
33 Finally finished a first draft of the full specification! dgisselq 2548d 10h /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 2548d 18h /zipcpu/trunk/doc/
24 Lots more changes to the spec. It's still not done, but it is more complete
than before.
dgisselq 2551d 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 2553d 14h /zipcpu/trunk/doc/
22 dgisselq 2553d 14h /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 2553d 14h /zipcpu/trunk/doc/
10 Here's the watchdog timer code, as well as some pictures of the register
set.
dgisselq 2574d 07h /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 2574d 14h /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 2574d 15h /zipcpu/trunk/doc/
6 Trying to move iset.html from gfx directory. dgisselq 2574d 15h /zipcpu/trunk/doc/
5 Updated colors in the graphics. dgisselq 2574d 15h /zipcpu/trunk/doc/
2 An initial load. No promises of what works or not, but this is where the
project is at.
dgisselq 2575d 08h /zipcpu/trunk/doc/

powered by: WebSVN 2.1.0

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