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Routines |
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Falling pitch played when an explosion animation ends.
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Play a falling-pitch explosion, stepping D down from 7.
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| SoundsExplosion | 47359 | LD D,7 | D=7. | |
| SoundsExplosion_Loop | 47361 | LD A,D | Copy the step into A. | |
| 47362 | DAA | Convert it to packed BCD. | ||
| 47363 | XOR %11110000 | Flip bits 4-7. | ||
| 47365 | RLCA | Rotate it left. | ||
| 47366 | LD C,A | Copy it into the pitch. | ||
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Mix two bits of GameTimer into the pitch to add noise.
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| 47367 | LD A,(24130) | Fetch GameTimer. | ||
| 47370 | RRCA | Rotate it right three times. | ||
| 47371 | RRCA | |||
| 47372 | RRCA | |||
| 47373 | AND %01100000 | Keep only bits 5-6. | ||
| 47375 | XOR C | Flip the bits from the pitch. | ||
| 47376 | LD C,A | Write the mixed pitch. | ||
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Play the note, then repeat for the next step.
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| 47377 | CALL PlaySquareWave | Call PlaySquareWave. | ||
| 47380 | DEC D | Decrease the step by one. | ||
| 47381 | JR NZ,SoundsExplosion_Loop | Jump back to SoundsExplosion_Loop until it is zero. | ||
| 47383 | RET | Return. | ||
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View the equivalent code in;
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