paint_bench.py renders the full bench frame: (1) the SMPTE bars via the
background program's own mechanism -- bar colours are ALGORITHMIC, the binary
bits of the bar index (111 110 011 010 101 100 001) copied into the R/G/B
planes by the program's IGC_CPY loops (the 0x8016000 block's decrementing
src/dst copy windows), bar geometry calibrated to the reference card; (2) the
196 exact triangles of the 3D test model (solved edge equations) composited on
top, shaded by their decoded texture-ramp scalars (placeholder ramp). Readout
§06 now shows the painted frame (14KB embedded PNG). Remaining to pixel-exact:
the firmware's baked ramp LUT + the middle/PLUGE sections from the program's
2nd/3rd copy sections rather than reference calibration.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>