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Routines |
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Used by the routine at MakeBulletHole.
Plays a burst of noise by using the first 128 bytes of the ROM as the length of each pulse.
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Use the first 128 bytes of the ROM as pulse lengths.
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| PlayStatic | 44696 | LD HL,0 | Point HL at the start of the ROM. | |
| 44699 | LD C,128 | Set the number of pulses. | ||
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Play each pulse.
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| PlayStatic_Loop | 44701 | LD A,(HL) | Fetch a byte of the ROM. | |
| 44702 | INC HL | Move on to the next byte. | ||
| 44703 | AND %00111111 | Keep the bottom six bits. | ||
| 44705 | LD B,A | Use them as the length of the pulse. | ||
| 44706 | CALL PlaySquareWave | Play the pulse. | ||
| 44709 | DEC C | Count down the pulses. | ||
| 44710 | JR NZ,PlayStatic_Loop | Loop back until all of the pulses have been played. | ||
| 44712 | RET | Return. | ||
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