a_dinosaur/ZSNES
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pagefault
2003-03-16 23:40:07 +00:00
parent 2d67154926
commit 0480456f7d
25 changed files with 3225 additions and 3539 deletions
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39
zsnes/src/cpu/dsp.asm
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@@ -21,7 +21,7 @@ EXTSYM BRRPlace0,BRRPlace1,BRRPlace2,BRRPlace3,BRRPlace4,BRRPlace5,BRRPlace6
EXTSYM BRRPlace7,Decrease,DecreaseRateExp,EchoFB,EchoRate,EchoVL,EchoVR
EXTSYM FIRTAPVal0,FIRTAPVal1,FIRTAPVal2,FIRTAPVal3,FIRTAPVal4,FIRTAPVal5
EXTSYM FIRTAPVal6,FIRTAPVal7,GlobalVL,GlobalVR,Increase,IncreaseBent
EXTSYM MaxEcho,MusicVol,NoiseInc,NoiseSpeeds,SBToSPC,Voice0End,Voice0EnvInc
EXTSYM MaxEcho,MusicVol,NoiseInc,NoiseSpeeds,dspPAdj,Voice0End,Voice0EnvInc
EXTSYM Voice0IncNumber,Voice0Loop,Voice0Noise,Voice0Prev0,Voice0Prev1
EXTSYM Voice0Start,Voice0State,Voice0Status,Voice0Time,Voice1End,Voice1Noise
EXTSYM Voice1Prev0,Voice1Prev1,Voice1Start,Voice2End,Voice2Noise,Voice2Prev0
@@ -47,7 +47,9 @@ NEWSYM DspAsmStart
;none times 256 db 0
SECTION .data
identcode db 255,1,78,78
SECTION .text
;sardcode db 234,76,80,128,65,65 ; 6
;efxcode db 17,47,62,97,26,126,98 ; 7
;zopcode db 54,39,21,0,0,8,14,12,18 ; 9
@@ -67,9 +69,10 @@ identcode db 255,1,78,78
mov [DSPMem+00h+%1],al
%endmacro
ALIGN32
NEWSYM DSPMem, times 256 db 0
SECTION .bss ;ALIGN=32
alignb 32
NEWSYM DSPMem, resb 256
SECTION .text
;Read DSP Registers functions
@@ -1114,7 +1117,7 @@ NEWSYM RDSPRegFF ;
test byte [DSPMem+07h+%1*10h],40h
jnz near %%Increase
test byte [DSPMem+07h+%1*10h],20h
jz near %%LinearDec
jz %%LinearDec
xor eax,eax
mov al,[DSPMem+07h+%1*10h]
and al,1Fh
@@ -1216,7 +1219,7 @@ NEWSYM RDSPRegFF ;
test byte [DSPMem+07h+%1*10h],40h
jnz near %%Increase
test byte [DSPMem+07h+%1*10h],20h
jz near %%LinearDec
jz %%LinearDec
xor eax,eax
mov al,[DSPMem+07h+%1*10h]
and al,1Fh
@@ -1524,11 +1527,11 @@ NEWSYM RDSPRegFF ;
%macro VoiceGain 1
test byte[MuteVoiceF],1 << %1
jnz near .nogain
jnz .nogain
cmp byte[Voice0State+%1],200
je near .nogain
je .nogain
cmp [DSPMem+07h+%1*10h],al
je near .nogain
je .nogain
mov [DSPMem+07h+%1*10h],al
cmp byte[Voice0Status+%1],1
jne .nogain
@@ -1550,7 +1553,9 @@ NEWSYM RDSPRegFF ;
ProcessGain2 %1
%endmacro
NEWSYM ADSRGAINSwitch, db 0
SECTION .bss
NEWSYM ADSRGAINSwitch, resb 1
SECTION .text
;Write DSP Registers functions
@@ -1584,7 +1589,9 @@ NEWSYM WDSPReg04 ; Voice 0 SCRN
mov [DSPMem+04h],al
ret
NEWSYM TempValueSnd, db 0
SECTION .bss
NEWSYM TempValueSnd, resb 1
SECTION .text
NEWSYM WDSPReg05 ; Voice 0 ADSR (1)
inc byte[TempValueSnd]
@@ -2231,7 +2238,9 @@ NEWSYM WDSPReg6B ; Voice 6
mov [DSPMem+06Bh],al
ret
spcres db 0
SECTION .bss
spcres resb 1
SECTION .text
NEWSYM WDSPReg6C ; Voice 6
mov [DSPMem+06Ch],al
@@ -2258,10 +2267,8 @@ NEWSYM WDSPReg6C ; Voice 6
and eax,1Fh
xor edx,edx
mov eax,[NoiseSpeeds+eax*4]
mov ebx,[SBToSPC]
shl eax,16
div ebx
shl eax,2
Mul dword [dspPAdj]
ShrD EAX, EDX, 17
mov [NoiseInc],eax
pop edx
pop ecx