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Update sound driver

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git-svn-id: svn://svn.cc65.org/cc65/trunk@5974 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
karri 2013-01-28 17:42:18 +00:00
parent 8a7b84247c
commit 0137681d77
1 changed files with 123 additions and 120 deletions
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41
libsrc/lynx/lynx-snd.s
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@ -1101,7 +1101,6 @@ set0: ldy SndOffsets,x
_ENDIF
rts
_lynx_snd_play:
sta ptr1
stx ptr1+1
@ -1123,8 +1122,8 @@ start0: lda SndActive,x
SndStartSoundx:
php
pha
start1: sei
start1:
sei
pla
sta SndPtrLo,x
tya
@ -1140,12 +1139,12 @@ start1: sei
rts
SndStartSound2:
pha
lda SndActive,x ; check default
beq start20 ; inactive => ok
phx
ldx #3 ; search free channel
start21: lda SndActive,x
start21:
lda SndActive,x
beq start22 ; found =>
dex
bpl start21
@ -1153,18 +1152,19 @@ start21: lda SndActive,x
dec SndReqStop,x ; stop default-channel
lda #1
sta SndDelay,x
start23: lda SndActive,x
start23:
lda SndActive,x
bne start23
bra start20
start22: pla ; clear stack
start20: pla
start22:
pla ; clear stack
start20:
pla
phx
jsr SndStartSoundx ; launch new sound
plx
rts
_lynx_snd_stop:
ldx #3
lda SndActive,x
@ -1179,7 +1179,7 @@ stop1: lda SndActive,x
bpl stop0
rts
SndStopChannel:
_lynx_snd_stop_channel:
lda SndActive,x
_IFNE
dec SndReqStop,x
@ -1190,7 +1190,7 @@ stopc1: lda SndActive,x
_ENDIF
rts
SndChannelsActive:
_lynx_snd_active:
ldx #3
lda #0
act0: ldy SndActive,x
@ -1201,8 +1201,8 @@ act0: ldy SndActive,x
bpl act0
rts
_lynx_snd_pause: php
_lynx_snd_pause:
php
sei
lda STIMCTLA
sta SndPauseOff1+1
@ -1219,12 +1219,14 @@ _lynx_snd_pause: php
plp
rts
_lynx_snd_continue: php
_lynx_snd_continue:
php
sei
SndPauseOff1: lda #0 ; Selbsmodifizierter Code!!!
SndPauseOff1:
lda #0 ; Selbsmodifizierter Code!!!
sta STIMCTLA
SndPauseOff2: lda #0 ; Selbsmodifizierter Code!!!
SndPauseOff2:
lda #0 ; Selbsmodifizierter Code!!!
sta MSTEREO
lda #$18
@ -1238,7 +1240,8 @@ SndPauseOff2: lda #0 ; Selbsmodifizierter Code!!!
.rodata
SndMask: .byte 1,2,4,8
SndMask:
.byte 1,2,4,8
SndPrescaler:
.byte $00,$06,$06,$06,$06,$05,$05,$05,$05,$05,$05,$05,$04,$04,$04,$04