Routines
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CA7C: Routine at CA7C
Used by the routine at 9D42.
CA7C LD HL,$D500
CA7F LD DE,$0800
CA82 LD B,$08
CA84 RLC (HL)
CA86 LD A,$10
CA88 JR C,$CA8B
CA8A XOR A
CA8B OUT ($FE),A
CA8D LD C,$12
CA8F DEC C
CA90 JR NZ,$CA8F
CA92 DJNZ $CA9C
CA94 INC HL
CA95 DEC DE
CA96 LD A,D
CA97 OR E
CA98 JR NZ,$CA82
CA9A EI
CA9B RET
CA9C NOP
CA9D NOP
CA9E NOP
CA9F NOP
CAA0 NOP
CAA1 JR $CA84
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