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Make sound processing use less CPU cycles.

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This commit is contained in:
n-a-c-h
2005-11-26 17:11:07 +00:00
parent db6aa710f7
commit b80ce23ef6
1 changed files with 3 additions and 7 deletions
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10
zsnes/src/linux/sdlintrf.asm
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@@ -1074,24 +1074,20 @@ NEWSYM StartSound
call JoyRead call JoyRead
ret ret
NEWSYM SoundProcess ; This function is called ~60 times/s at full speed NEWSYM SoundProcess ; This function is called ~60 times/s at full speed
pushad
cmp byte[soundon],0 cmp byte[soundon],0
je .nosound je .nosound
cmp byte[DSPDisable],1 cmp byte[DSPDisable],1
je .nosound je .nosound
mov eax,256 ; Size mov dword[BufferSizeB],256
mov [BufferSizeB],eax mov dword[BufferSizeW],512
add eax,eax
mov [BufferSizeW],eax
pushad pushad
call ProcessSoundBuffer call ProcessSoundBuffer
popad popad
; DSPBuffer should contain the processed buffer in the specified size ; DSPBuffer should contain the processed buffer in the specified size
; You will have to convert/clip it to 16-bit for actual sound process ; You will have to convert/clip it to 16-bit for actual sound process
.nosound .nosound
popad
ret ret
NEWSYM delay NEWSYM delay