|
Routines |
| Prev: FD40 | Up: Map | Next: FD99 |
|
Used by the routine at Play_MenuMusicTick.
Continue a music tick when Play_MenuMusicTick takes the carry path: build a delay via Build_MusicDelayCount, then either pulse the speaker, play the table-driven coda, or return.
|
||||
| Continue_MenuMusicTick | FD76 | PUSH AF | Stash AF, load stream-two's byte from FC85 into D, then restore AF. | |
| FD77 | LD A,($FC85) | |||
| FD7A | LD D,A | |||
| FD7B | POP AF | |||
| FD7C | CALL Build_MusicDelayCount | Call Build_MusicDelayCount to build the delay count. | ||
| FD7F | CP $FF | Jump to Pulse_MenuMusicSpeaker if A is FF (pulse the speaker). | ||
| FD81 | JR Z,Pulse_MenuMusicSpeaker | |||
| FD83 | CP $C0 | Jump to Play_MenuMusicCoda if A is C0 (play the coda). | ||
| FD85 | JP Z,Play_MenuMusicCoda | |||
| FD88 | LD B,$04 | Load B with 04 step bits. | ||
| FD8A | LD C,E | Copy the delay into C. | ||
| FD8B | RLA | Rotate A left through carry four times to walk the step mask. | ||
| FD8C | RLA | |||
| FD8D | RLA | |||
| FD8E | RLA | |||
|
Apply the current step bit: pulse, hold, then loop.
|
||||
| Continue_MenuMusicTick_StepBit | FD8F | RLA | Rotate A left through carry once more for this step. | |
| FD90 | CALL C,Pulse_MenuMusicSpeaker | If carry is set, call Pulse_MenuMusicSpeaker to pulse the speaker. | ||
| FD93 | CALL NC,Hold_MenuMusicSilence_Loop | If carry is clear, call Hold_MenuMusicSilence_Loop for a silent hold. | ||
| FD96 | DJNZ Continue_MenuMusicTick_StepBit | Decrease B and loop to Continue_MenuMusicTick_StepBit while steps remain. | ||
| FD98 | RET | Return. | ||
| Prev: FD40 | Up: Map | Next: FD99 |