docs(amiga): add Tier 4 content — AHI, cross-compilation, RTG, demoscene section

- New: 11_libraries/ahi_programming.md — AHI retargetable audio API
- New: 13_toolchain/cross_compilation_guide.md — cross-compiling for Amiga
- New: 08_graphics/rtg_programming.md — RTG Picasso96/CyberGraphX programming
- New: 17_demoscene/ — full demoscene techniques section:
  - copper_effects.md (6 techniques, 10 Pouet screenshots, antipatterns)
  - sprite_techniques.md (5 techniques, antipatterns)
  - pixel_tricks.md (5 techniques, antipatterns)
  - 3d_rendering.md (fixed-point math, 4 techniques, antipatterns)
  - timing_optimization.md (7 techniques, instruction timing tables)
  - README.md (section index with Mermaid diagrams)
  - images/ (10 authentic Amiga screenshots from Pouet.net)
- New: 05_reversing/games/ (4 copper-analysis screenshots)
- Updated: README index, TODO status (30/30 complete)
- Added external references: Pouet/Demozoo links, Scoopex YouTube
  tutorial series, Amiga Graphics Archive, coppershade.org
This commit is contained in:
Ilia Sharin 2026-05-13 17:49:28 -04:00
parent 7e327e6640
commit f8f8d1c834
31 changed files with 5433 additions and 15 deletions

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@ -318,3 +318,4 @@ Reposition sprites mid-frame to display more than 8 sprites:
- [copper.md](../01_hardware/ocs_a500/copper.md) — register-level reference
- [copper.md](copper.md) — graphics.library UCopList API
- [Video Signal & Timing](../01_hardware/common/video_timing.md) — beam counters, scanline anatomy, clock tree
- **Scoopex Amiga Hardware Programming** (Photon) — [YouTube: Copper tutorials](https://www.youtube.com/playlist?list=PLc3ltHgmiidpK-s0eP5hTKJnjdTHz0_bW) — Video walkthroughs of copper list construction, copper bars, and raster effects. Companion articles: [coppershade.org](http://coppershade.org/articles/)