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Document that `farcall` returns `c` in `a` for some code (#937)

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Colton G. Rushton 2022-06-17 23:30:53 -03:00 committed by GitHub
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commit 84a3b335aa
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4
engine/overworld/events.asm
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@ -1085,9 +1085,13 @@ TryTileCollisionEvent::
call GetFacingTileCoord
ld [wFacingTileID], a
ld c, a
; CheckFacingTileForStdScript preserves c, and
; farcall copies c back into a.
farcall CheckFacingTileForStdScript
jr c, .done
; CheckCutTreeTile expects a == [wFacingTileID], which
; it still is after the previous farcall.
call CheckCutTreeTile
jr nz, .whirlpool
farcall TryCutOW