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Routines |
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Used by the routine at HandlerPlayerAppearing.
Plays a tone of 16 cycles. The half period is made from the seventh byte of the entity (flipped, rotated left once and limited to the range 64 to 127), so it changes as the byte does.
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| SoundsAppear | 42079 | LD A,(IX+6) | Fetch offset 6 of the entity. | |||||
| 42082 | CPL | Flip the bits. | ||||||
| 42083 | RLCA | Rotate left once. | ||||||
| 42084 | AND %00111111 | Keep only bits 0-5. | ||||||
| 42086 | OR %01000000 | Set bit 6. | ||||||
| 42088 | LD B,A | Keep the half period in B. | ||||||
| 42089 | LD C,16 | C=16 (the number of cycles). | ||||||
| 42091 | JP SoundsBeep | Jump to SoundsBeep to play the tone. | ||||||
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