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Routines |
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Used by the routine at HandlerWeapon.
Plays a tone of 4 cycles. The half period is made by rotating the counter right three times. The counter is set to 64 and decreased before it is tested for zero, so the routine always carries on and plays the tone, with a half period of 231.
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| SoundsBounce | 42160 | LD D,64 | D=64. | |
| 42162 | DEC D | Decrease D by one. | ||
| 42163 | RET Z | Return if it is zero. | ||
| 42164 | LD A,D | A=D. | ||
| 42165 | RRCA | Rotate right three times. | ||
| 42166 | RRCA | |||
| 42167 | RRCA | |||
| 42168 | LD B,A | Keep the half period in B. | ||
| 42169 | LD C,4 | C=4 (the number of cycles). | ||
| 42171 | JP SoundsBeep | Jump to SoundsBeep to play the tone. | ||
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View the equivalent code in;
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