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Routines | 
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| 48919 | LD C,48 | C=48. | ||
| 48921 | LD A,C | |||
| 48922 | OR %00011000 | Set bits 3-4. | ||
| 48924 | DAA | |||
| 48925 | LD B,A | |||
| 48926 | CALL PlaySquareWave | Call PlaySquareWave. | ||
| 48929 | DEC C | |||
| 48930 | JR NZ,48921 | |||
| 48932 | RET | Return. | ||
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