Unused |
Prev: F66C | Up: Map | Next: F6B5 |
|
||||||||||
PlayWave3 | F68F | PUSH BC | Stash the delay counter on the stack twice. | |||||||
F690 | PUSH BC | |||||||||
F691 | CALL Delay_Loop | Call Delay_Loop. | ||||||||
F694 | LD BC,$FFFE | Send *Active_BorderColour to the speaker port. | ||||||||
F697 | LD A,($5BD0) | |||||||||
F69A | OUT (C),A | |||||||||
F69C | POP BC | Restore the delay counter from the stack. | ||||||||
F69D | CALL Delay_Loop | Call Delay_Loop. | ||||||||
F6A0 | LD BC,($FFFE) | BC=*FFFE (C points to the speaker port). | ||||||||
F6A4 | LD A,($5BD0) | A=*Active_BorderColour. | ||||||||
F6A7 | OR %00010000 | Turn on the speaker (set bit 4). | ||||||||
F6A9 | OUT (C),A | Send A to the speaker port. | ||||||||
F6AB | POP BC | Restore the delay counter from the stack. | ||||||||
F6AC | DEC BC | Decrease the delay counter by three. | ||||||||
F6AD | DEC BC | |||||||||
F6AE | DEC BC | |||||||||
F6AF | DEC DE | Decrease the duration counter by one. | ||||||||
F6B0 | LD A,D | Keep looping back to PlayWave3 until the duration counter is zero. | ||||||||
F6B1 | OR E | |||||||||
F6B2 | JR NZ,$F68F | |||||||||
F6B4 | RET | Return. |
Prev: F66C | Up: Map | Next: F6B5 |