org $917d
call $f820
org $bec2
db $80
org $f820
ld a,($af57) ; IF PEEK ($af56)<>2 OR PEEK($af57)<>17 THEN RETURN
cp $11
ld a,($af56)
ret nz
cp $02
ret nz
pop af ; (remove return address from stack)
jp $918b ; ELSE GOTO $918b
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