https://github.com/biged/digiac-mac-iii

Disassembly and supporting info for this 6502 trainer board
https://github.com/biged/digiac-mac-iii

Last synced: about 1 month ago
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Disassembly and supporting info for this 6502 trainer board

• Host: GitHub
• URL: https://github.com/biged/digiac-mac-iii
• Owner: BigEd
• Created: 2024-02-06T22:06:38.000Z (11 months ago)
• Default Branch: main
• Last Pushed: 2024-05-26T17:32:55.000Z (8 months ago)
• Last Synced: 2024-10-15T20:23:48.075Z (3 months ago)
• Language: Python
• Size: 27.3 KB
• Stars: 0
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Digiac-Mac-III

Disassembly and supporting info for this 6502 trainer board

It's a work in progress. Using py8dis for an initial disassembly.

To run the disassembly and check the results against the original ROM:

```

env PYTHONPATH=../py8dis/py8dis python3 digiac-mac-iii.py > digiac-mac-iii.asm

../beebasm/beebasm -i digiac-mac-iii.asm -o digiac-mac-iii.beebasm.rom -v > digiac-mac-iii.lst

cmp digiac-mac-iii.rom digiac-mac-iii.beebasm.rom 

shasum digiac-mac-iii.rom digiac-mac-iii.beebasm.rom

```

Some resources:

- http://retro.hansotten.nl/6502-sbc/emma-by-l-j-technical-systems/digiac-6502-systems/

- https://www.nxp.com/docs/en/data-sheet/SCC2681.pdf

- http://archive.6502.org/datasheets/mos_6522_preliminary_nov_1977.pdf

- http://forum.6502.org/viewtopic.php?f=3&t=6780

- https://github.com/ZornsLemma/py8dis

- https://github.com/stardot/beebasm