Routines
Prev: B4A1 Up: Map Next: B4C5
B4BA: Play the tune at DE
Used by the routines at AFTER_GAME, OILED_ROBOT and ARRIVAL_SCREEN.
Plays the whole tune and returns; nothing else happens meanwhile, since the sound is made by timing loops. Used for the start tune (AFTER_GAME), the winning tune (OILED_ROBOT) and the arrival tune (ARRIVAL_SCREEN). Knight Lore's play_audio; Pentagram's PLAY_TUNE.
Input
DE the tune
PLAY_TUNE B4BA LD A,(DE) $FF ends it; play the note, and the next
B4BB CP $FF
B4BD JR Z,PLAY_TUNE_0
B4BF CALL PLAY_NOTE
B4C2 JR PLAY_TUNE
This entry point is used by the routine at PLAY_TUNE_ONCE.
PLAY_TUNE_0 B4C4 RET DE is left pointing at the $FF
Prev: B4A1 Up: Map Next: B4C5