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audio fixes for overdrive demo

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This commit is contained in:
kub 2020-01-26 20:12:18 +01:00
parent 43e1401008
commit 7aab476859
5 changed files with 15 additions and 11 deletions
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3
pico/sound/ym2612_arm.S
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@ -206,8 +206,9 @@
.macro update_ssg_eg
ldrh r0, [r5,#0x30] @ ssg+ssgn
ldrb r2, [r5,#0x17] @ state
and r3, r0, #0x08
cmp r3, #0x08 @ ssg enabled &&
ldrh r3, [r5,#0x1a] @ volume
cmp r0, #0x08 @ ssg enabled &&
cmpge r2, #EG_REL+1 @ state > EG_REL &&
cmpge r3, #0x200 @ volume >= 0x200?
blt 9f