REFORGE
Atari 2600 / F276
BEING VERIFIED

XAA/ANE REPRODUCES THE IMMEDIATE SILICON-PROFILE DIVERGENCE

STATUS
BEING VERIFIED
AREA
Recompiler
RECORDED
2026-07-18
PUBLIC SOURCE
Research dossier / finding 276
RECORD ID
atari2600-f276
SNAPSHOT
f114355884d03a2c

Opcode $8B XAA/ANE is also commonly described with a “magic constant.” Eight discriminating cases executed directly on pinned perfect6502 revision 09fc542877a84318291aa42dab143a3e2c3db974 perform only the opcode and immediate reads, preserve X/Y/SP, derive N/Z from A, and produce A=A&X&imm.

Raw traces, ROM material, local paths, and personal data are not part of this public record.