Routines
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C136: Sounds: Play Wave
Used by the routines at C122, C143 and C159.
Input
B Play duration
D Delay duration
Flip speaker on (set bit 4).
Sounds_PlayWave C136 LD A,%00010000 A=10 (speaker on = bit 4).
C138 OUT ($FE),A
Sounds_PlayWave_Loop C13A DJNZ Sounds_PlayWave_Loop Decrease counter by one and loop back to Sounds_PlayWave_Loop until counter is zero.
Flip speaker off (unset bit 4).
C13C XOR A Speaker off.
C13D OUT ($FE),A
C13F LD B,D B=D.
PlayWave_Silence_Loop C140 DJNZ PlayWave_Silence_Loop Decrease counter by one and loop back to PlayWave_Silence_Loop until counter is zero.
C142 RET Return.
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