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B33D: Routine at B33D
B33D DEC (IX+$12) Decrease IX+12 by one.
B340 JR NZ,$B357
B342 LD A,(IX+$13)
B345 LD (IX+$12),A
B348 INC (IX+$06)
B34B LD A,(IX+$05)
B34E AND A
B34F JR Z,$B357
B351 JP P,$B356
B354 INC A
B355 INC A
B356 DEC A
B357 CALL $907B Call 907B.
B35A LD A,(IX+$04)
B35D ADD A,(IX+$06)
B360 CP $AF
B362 JR NC,$B37B
B364 LD (IX+$04),A
B367 LD C,A
B368 LD D,$03
B36A CALL SquareWave_Loop Call SquareWave_Loop.
B36D LD A,($5E42)
B370 RRCA
B371 AND $03
B373 ADD A,$DC
B375 LD (IX+$00),A
B378 JP $ABB4 Jump to ABB4.
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