capemit.py records every emitter-range write plus the DMA stream during trek
draws; analyze_emit.py decodes it. Findings: TILE ids = a 13x4 grid (row<<5|col,
832/64 x 512/128); the famous SENDE block at 0x8015020 is byte-identical across
captures = the fixed BACKGROUND-CLEAR program (not scene coeffs); trek's scene
content lives in further payload blocks (0x8015800..0x80168c8+, many primitives)
with a readable per-scanline span structure: row ids (0x39f,0x3a0,... = rows
415..422 observed), place-value indices, and edge constants in x2 chains. A
first-guess parser already extracts 8 consecutive spans forming a leaning
polygon edge -- rasterized geometry read directly from the compiled micro-code.
Full multi-block decode + scene assembly = next session (see memory).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
CydandClaude Opus 4.8
a7a59af9b4
