Routines
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29422: Routine at 72EE
Used by the routine at MaskSprite.
29422 DEC H
29423 LD A,H
29424 AND 7
29426 CP 7
29428 RET NZ
29429 LD A,L
29430 SUB 32
29432 LD L,A
29433 AND 224
29435 CP 224
29437 RET Z
29438 LD A,H
29439 ADD A,8
29441 LD H,A
29442 RET
29443 LD A,L
29444 SUB 32
29446 LD L,A
29447 RET
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