Hojun-Cho 52d15ae92d w6a/asm: Jcc if-pyramid -> switch (Wave-2 structural) ...

Fold the 13-arm Jcc else-if pyramid in encode() to a single switch (op)
with the terminal else (isjcc=false) as the empty-label default case.
Pure op->cc value mapping, so a switch expresses it exactly.

Not byte-id-neutral (if-chain -> switch dispatch changes the asm). The
ladder<->switch byte-emission equivalence is pinned by 991_w6a_ww, whose
corpus (wwdump/w6l/w6a main.s) emits all 13 Jcc conditions, and was
independently reproduced at landing (all 13 mnemonics assemble
byte-identical C-w6a vs w6a_ww).

Regenerates the w6a combined.ww amalgamation (Jcc region only).

2026-06-02 22:33:06 +09:00

164 KiB

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