Emitter dropped the entry-block goto when the function entry is not the lowest-address block (Missile Command + River…

emitter_c.py emit_function emitted blocks address-sorted and jumped to the entry label only when blocks[0] was a "stale RTS" stub — otherwise execution FELL INTO blocks[0]. A 6502 control transfer (JSR, PHA/PHA/RTS dispatch, indirect trampoline) always begins at the target address, so the fall-in is never correct.

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