docs: clean up completed timing plans, add VIC-20 architecture plan

Remove 6 completed timing architecture phase plans (5-9 + overview).
Add comprehensive VIC-20 architecture plan covering:
- 6502 CPU family trait hierarchy (MOS 6502, WDC 65C02)
- Generic SRAM/ROM memory components
- 6560/6561 VIC video chip design
- 6522 VIA I/O chip design
- Address bus architecture for memory-mapped I/O
- Expansion port design
- GUI adaptations for multi-system support
- 6-phase implementation roadmap
This commit is contained in:
Jan-Peter von Hunnius 2026-05-14 21:21:46 +02:00
parent 08f53d68fe
commit 80ef0d4475
7 changed files with 1010 additions and 2709 deletions

1010
plans/vic20_architecture.md Normal file

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