Ilia Sharin
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2283178f09
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Add Copper ISA Complete Reference Manual
New file: 08_graphics/copper/copper_reference.md
- Full instruction set reference with opcode encoding table
- Bit-level encoding for MOVE, WAIT, SKIP (7-bit masks)
- Beam position encoding: V counter (8-bit), H counter (7-bit)
- Copper control registers (COP1LC, COP2LC, COPJMP, COPCON, DMACON)
- Copper list structure, dual lists, SKIP-based double buffering
- DMA timing budget calculations per scanline
- Register reference for all copper-writable targets
- OCS/ECS/AGA differences (AGA 24-bit color via BPLCON3 LOCT)
- Programming models: bare metal, OS-friendly UCopList, self-modifying
- Common patterns: rainbow, split screen, status bar, sprite mux
- Debugging: 8 common pitfalls with symptoms and fixes
- Mermaid fetch-execute cycle diagram
Updated files:
- 08_graphics/README.md: add copper_reference.md to index
- 08_graphics/copper/copper.md: cross-reference link, fix MOVE/WAIT
encoding, fix UCopList CMOVE syntax
- 08_graphics/copper/copper_programming.md: cross-reference link, fix
horizontal resolution (2 color clocks, not 4)
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2026-06-01 14:39:43 -04:00 |
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