;zsub_E8A zSetChanVol: bit 7,(ix+1) ; a PSG track ret nz ; If so, quit! bit 2,(ix+0) ; If playback control byte "SFX is overriding this track" bit set... ret nz ; ... then quit! ld e,(ix+1Ah) ; zVolTLMaskTbl value from last voice setting (marks which specific TL operators need updating) ld a,(ix+1) ; Load current voice control byte and 3 ; Keep only bits 0-2 add a,40h ; Add 40h -- appropriate TL register ld d,(ix+6) ; Get channel volume bit 7,d ; If bit 7 (80h) is set... ret nz ; ... then quit! push hl ; Save 'hl' ld l,(ix+1Eh) ; low byte of where TL bytes begin (set during last voice setting) ld h,(ix+1Fh) ; high byte of where TL bytes begin (set during last voice setting) call zSetFMTLs ; Set the appropriate Total Levels pop hl ; Restore 'hl' ret ; End of function zSetChanVol
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