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Routines |
| Prev: C048 | Up: Map | Next: C05B |
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Used by the routine at FireWeaponB.
Makes the sound of a shot. Plays 28 tones, each with a pitch worked out from a counter that counts down, so the sound falls in pitch.
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Play 28 pulses of different lengths.
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| PlayNoiseSound | C04E | LD C,$28 | Use 28 cycles. | |
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This entry point is used by the routine at EnterInitials.
This entry point takes the number of pulses in C.
Play the next pulse.
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| PlayNoiseSound_Counter | C050 | LD A,C | Fetch the number of the pulse. | |
| C051 | XOR %00111111 | Change it. | ||
| C053 | LD B,A | Use it as the length of the pulse. | ||
| C054 | CALL PlaySquareWave | Make a single cycle using PlaySquareWave. | ||
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Loop back until all of the cycles have been made.
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| C057 | DEC C | Count down the pulses. | ||
| C058 | JR NZ,PlayNoiseSound_Counter | Loop back until all of the pulses have been played. | ||
| C05A | RET | Return. | ||
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View the equivalent code in;
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| Prev: C048 | Up: Map | Next: C05B |