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[/] [zipcpu/] [trunk/] [doc/] - Rev 156

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153 Adds internal link functionality to the specification document format. dgisselq 2884d 11h /zipcpu/trunk/doc/
139 Changes necessary to document the changed instruction set: LDIHI became MPY,
and MPYU and MPYS became MPYUHI and MPYSHI respectively. See the specification
for more details.
dgisselq 2923d 20h /zipcpu/trunk/doc/
107 Adding a missing file. dgisselq 2976d 12h /zipcpu/trunk/doc/
106 Updated to allow building without the sources for the graphics used in the
document.
dgisselq 2976d 16h /zipcpu/trunk/doc/
92 Adjustments made to match the simplified early branching. dgisselq 3022d 13h /zipcpu/trunk/doc/
85 Minor update/correction to operand B definition. dgisselq 3048d 11h /zipcpu/trunk/doc/
79 Adjusted the opcodes for NOOP, BREAK, and LOCK. dgisselq 3052d 15h /zipcpu/trunk/doc/
78 Found/corrected annoying bug in floating point documentation of the opcode
table.
dgisselq 3052d 15h /zipcpu/trunk/doc/
73 Documentations updates. dgisselq 3053d 14h /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 3053d 14h /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 3059d 19h /zipcpu/trunk/doc/
68 Updated specification, includes well illustrated pipeline discussion. dgisselq 3094d 19h /zipcpu/trunk/doc/
67 Includes timing diagrams in support of a very descriptive specification section. dgisselq 3094d 19h /zipcpu/trunk/doc/
49 Final set of changes finishing the Dhrystone package. Dhrystone, as
implemented by hand in assembly, now works.
dgisselq 3140d 13h /zipcpu/trunk/doc/
47 Added some new graphics, includes the file for the Zip Bones system. dgisselq 3140d 13h /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 3143d 16h /zipcpu/trunk/doc/
37 Fixed some minor spelling errors. dgisselq 3152d 09h /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 3152d 22h /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 3169d 12h /zipcpu/trunk/doc/
33 Finally finished a first draft of the full specification! dgisselq 3181d 15h /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 3181d 23h /zipcpu/trunk/doc/
24 Lots more changes to the spec. It's still not done, but it is more complete
than before.
dgisselq 3184d 23h /zipcpu/trunk/doc/
23 Oops -- left some portions of the RTC Clock spec in with the ZIP CPU spec.
These were quickly removed.
dgisselq 3186d 19h /zipcpu/trunk/doc/
22 dgisselq 3186d 19h /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 3186d 19h /zipcpu/trunk/doc/
10 Here's the watchdog timer code, as well as some pictures of the register
set.
dgisselq 3207d 12h /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 3207d 19h /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 3207d 20h /zipcpu/trunk/doc/
6 Trying to move iset.html from gfx directory. dgisselq 3207d 20h /zipcpu/trunk/doc/
5 Updated colors in the graphics. dgisselq 3207d 20h /zipcpu/trunk/doc/

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