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Routines |
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Used by the routine at HandlerWeapon.
Plays a tone of 04 cycles. The half period is made by rotating the counter right three times. The counter is set to 40 and decreased before it is tested for zero, so the routine always carries on and plays the tone, with a half period of E7.
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| SoundsBounce | A4B0 | LD D,$40 | D=40. | |
| A4B2 | DEC D | Decrease D by one. | ||
| A4B3 | RET Z | Return if it is zero. | ||
| A4B4 | LD A,D | A=D. | ||
| A4B5 | RRCA | Rotate right three times. | ||
| A4B6 | RRCA | |||
| A4B7 | RRCA | |||
| A4B8 | LD B,A | Keep the half period in B. | ||
| A4B9 | LD C,$04 | C=04 (the number of cycles). | ||
| A4BB | JP SoundsBeep | Jump to SoundsBeep to play the tone. | ||
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View the equivalent code in;
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