dsp.asm

linux下的任天堂模拟器代码。供大家参考。

;Copyright (C) 1997-2007 ZSNES Team ( zsKnight, _Demo_, pagefault, Nach )
;
;http://www.zsnes.com
;http://sourceforge.net/projects/zsnes
;https://zsnes.bountysource.com
;
;This program is free software; you can redistribute it and/or
;modify it under the terms of the GNU General Public License
;version 2 as published by the Free Software Foundation.
;
;This program is distributed in the hope that it will be useful,
;but WITHOUT ANY WARRANTY; without even the implied warranty of
;MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;GNU General Public License for more details.
;
;You should have received a copy of the GNU General Public License
;along with this program; if not, write to the Free Software
;Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

%include "macros.mac"

EXTSYM Decrease,DecreaseRateExp,EchoFB,EchoRate,EchoVL,EchoVR
EXTSYM FIRTAPVal0,FIRTAPVal1,FIRTAPVal2,FIRTAPVal3,FIRTAPVal4,FIRTAPVal5
EXTSYM FIRTAPVal6,FIRTAPVal7,GlobalVL,GlobalVR,Increase
EXTSYM MaxEcho,MusicVol,NoiseInc,NoiseSpeeds,dspPAdj,Voice0EnvInc
EXTSYM Voice0IncNumber,Voice0State,Voice0Time
EXTSYM Voice0Start,Voice1Start,Voice2Start,Voice3Start
EXTSYM Voice4Start,Voice5Start,Voice6Start,Voice7Start
EXTSYM Voice0Noise,Voice1Noise,Voice2Noise,Voice3Noise
EXTSYM Voice4Noise,Voice5Noise,Voice6Noise,Voice7Noise
EXTSYM VolumeConvTable,VolumeTableb
EXTSYM Voice0Status,Voice1Status,Voice2Status,Voice3Status
EXTSYM Voice4Status,Voice5Status,Voice6Status,Voice7Status
EXTSYM GainDecBendDataPos,GainDecBendDataTime,GainDecBendDataDat
EXTSYM AdsrSustLevLoc,AdsrBlocksLeft,AdsrNextTimeDepth
EXTSYM MuteVoiceF,VoiceStarter,DecayRate,SustainRate
EXTSYM KeyOnStA,KeyOnStB,SoundTest,keyonsn

SECTION .data
identcode db 255,1,78,78
SECTION .text

; Digital Sound Processor of the SPC700 By _Demo_

%macro initrevsthelp 1
    mov al,[DSPMem+01h+%1]
    mov ah,[DSPMem+00h+%1]
    mov [DSPMem+01h+%1],ah
    mov [DSPMem+00h+%1],al
%endmacro

SECTION .data
ALIGN32
NEWSYM DSPMem, times 256 db 0
SECTION .text

;Read DSP Registers functions

NEWSYM RDSPReg00       ; Voice  0  Volume Left
      mov al,[DSPMem+00h]
      ret

NEWSYM RDSPReg01       ; Voice  0  Volume Right
      mov al,[DSPMem+01h]
      ret

NEWSYM RDSPReg02       ; Voice  0  Pitch Low
      mov al,[DSPMem+02h]
      ret

NEWSYM RDSPReg03       ; Voice  0  Pitch High
      mov al,[DSPMem+03h]
      ret

NEWSYM RDSPReg04       ; Voice  0  SCRN
      mov al,[DSPMem+04h]
      ret

NEWSYM RDSPReg05       ; Voice  0  ADSR (1)
      mov al,[DSPMem+05h]
      ret

NEWSYM RDSPReg06       ; Voice  0  ADSR (2)
      mov al,[DSPMem+06h]
      ret

NEWSYM RDSPReg07       ; Voice  0  GAIN
      mov al,[DSPMem+07h]
      ret

NEWSYM RDSPReg08       ; Voice  0  ENVX
      mov al,[DSPMem+08h]
      and al,7Fh
      ret

NEWSYM RDSPReg09       ; Voice  0  OUTX
      mov al,[DSPMem+09h]
      ret

NEWSYM RDSPReg0A       ;
      mov al,[DSPMem+0Ah]
      ret

NEWSYM RDSPReg0B       ;
      mov al,[DSPMem+0Bh]
      ret

NEWSYM RDSPReg0C       ;
      mov al,[DSPMem+0Ch]
      ret

NEWSYM RDSPReg0D       ;
      mov al,[DSPMem+0Dh]
      ret

NEWSYM RDSPReg0E       ;
      mov al,[DSPMem+0Eh]
      ret

NEWSYM RDSPReg0F       ; Voice  0  Echo coefficient
      mov al,[DSPMem+0Fh]
      ret

NEWSYM RDSPReg10       ; Voice  1  Volume Left
      mov al,[DSPMem+10h]
      ret

NEWSYM RDSPReg11       ; Voice  1  Volume Right
      mov al,[DSPMem+11h]
      ret

NEWSYM RDSPReg12       ; Voice  1  Pitch Low
      mov al,[DSPMem+012h]
      ret

NEWSYM RDSPReg13       ; Voice  1  Pitch High
      mov al,[DSPMem+013h]
      ret

NEWSYM RDSPReg14       ; Voice  1  SCRN
      mov al,[DSPMem+014h]
      ret

NEWSYM RDSPReg15       ; Voice  1  ADSR (1)
      mov al,[DSPMem+015h]
      ret

NEWSYM RDSPReg16       ; Voice  1  ADSR (2)
      mov al,[DSPMem+016h]
      ret

NEWSYM RDSPReg17       ; Voice  1  GAIN
      mov al,[DSPMem+017h]
      ret

NEWSYM RDSPReg18       ; Voice  1  ENVX
      mov al,[DSPMem+018h]
      and al,7Fh
      ret

NEWSYM RDSPReg19       ; Voice  1  OUTX
      mov al,[DSPMem+019h]
      ret

NEWSYM RDSPReg1A       ;
      mov al,[DSPMem+01Ah]
      ret

NEWSYM RDSPReg1B       ;
      mov al,[DSPMem+01Bh]
      ret

NEWSYM RDSPReg1C       ;
      mov al,[DSPMem+01Ch]
      ret

NEWSYM RDSPReg1D       ;
      mov al,[DSPMem+01Dh]
      ret

NEWSYM RDSPReg1E       ;
      mov al,[DSPMem+01Eh]
      ret

NEWSYM RDSPReg1F       ; Voice  1  Echo coefficient
      mov al,[DSPMem+01Fh]
      ret

NEWSYM RDSPReg20       ; Voice  2  Volume Left
      mov al,[DSPMem+20h]
      ret

NEWSYM RDSPReg21       ; Voice  2  Volume Right
      mov al,[DSPMem+21h]
      ret

NEWSYM RDSPReg22       ; Voice  2  Pitch Low
      mov al,[DSPMem+022h]
      ret

NEWSYM RDSPReg23       ; Voice  2  Pitch High
      mov al,[DSPMem+023h]
      ret

NEWSYM RDSPReg24       ; Voice  2  SCRN
      mov al,[DSPMem+024h]
      ret

NEWSYM RDSPReg25       ; Voice  2  ADSR (1)
      mov al,[DSPMem+025h]
      ret

NEWSYM RDSPReg26       ; Voice  2  ADSR (2)
      mov al,[DSPMem+026h]
      ret

NEWSYM RDSPReg27       ; Voice  2  GAIN
      mov al,[DSPMem+027h]
      ret

NEWSYM RDSPReg28       ; Voice  2  ENVX
      mov al,[DSPMem+028h]
      and al,7Fh
      ret

NEWSYM RDSPReg29       ; Voice  2  OUTX
      mov al,[DSPMem+029h]
      ret

NEWSYM RDSPReg2A       ;
      mov al,[DSPMem+02Ah]
      ret

NEWSYM RDSPReg2B       ;
      mov al,[DSPMem+02Bh]
      ret

NEWSYM RDSPReg2C       ;
      mov al,[DSPMem+02Ch]
      ret

NEWSYM RDSPReg2D       ;
      mov al,[DSPMem+02Dh]
      ret

NEWSYM RDSPReg2E       ;
      mov al,[DSPMem+02Eh]
      ret

NEWSYM RDSPReg2F       ; Voice  2  Echo coefficient
      mov al,[DSPMem+02Fh]
      ret

NEWSYM RDSPReg30       ; Voice  3  Volume Left
      mov al,[DSPMem+30h]
      ret

NEWSYM RDSPReg31       ; Voice  3  Volume Right
      mov al,[DSPMem+31h]
      ret

NEWSYM RDSPReg32       ; Voice  3  Pitch Low
      mov al,[DSPMem+032h]
      ret

NEWSYM RDSPReg33       ; Voice  3  Pitch High
      mov al,[DSPMem+033h]
      ret

NEWSYM RDSPReg34       ; Voice  3  SCRN
      mov al,[DSPMem+034h]
      ret

NEWSYM RDSPReg35       ; Voice  3  ADSR (1)
      mov al,[DSPMem+035h]
      ret

NEWSYM RDSPReg36       ; Voice  3  ADSR (2)
      mov al,[DSPMem+036h]
      ret

NEWSYM RDSPReg37       ; Voice  3  GAIN
      mov al,[DSPMem+037h]
      ret

NEWSYM RDSPReg38       ; Voice  3  ENVX
      mov al,[DSPMem+038h]
      and al,7Fh
      ret

NEWSYM RDSPReg39       ; Voice  3  OUTX
      mov al,[DSPMem+039h]
      ret

NEWSYM RDSPReg3A       ;
      mov al,[DSPMem+03Ah]
      ret

NEWSYM RDSPReg3B       ;
      mov al,[DSPMem+03Bh]
      ret

NEWSYM RDSPReg3C       ;
      mov al,[DSPMem+03Ch]
      ret

NEWSYM RDSPReg3D       ;
      mov al,[DSPMem+03Dh]
      ret

NEWSYM RDSPReg3E       ;
      mov al,[DSPMem+03Eh]
      ret

NEWSYM RDSPReg3F       ; Voice  3  Echo coefficient
      mov al,[DSPMem+03Fh]
      ret

NEWSYM RDSPReg40       ; Voice  4  Volume Left
      mov al,[DSPMem+40h]
      ret

NEWSYM RDSPReg41       ; Voice  4  Volume Right
      mov al,[DSPMem+41h]
      ret

NEWSYM RDSPReg42       ; Voice  4  Pitch Low
      mov al,[DSPMem+042h]
      ret

NEWSYM RDSPReg43       ; Voice  4  Pitch High
      mov al,[DSPMem+043h]
      ret

NEWSYM RDSPReg44       ; Voice  4  SCRN
      mov al,[DSPMem+044h]
      ret

NEWSYM RDSPReg45       ; Voice  4  ADSR (1)
      mov al,[DSPMem+045h]
      ret

NEWSYM RDSPReg46       ; Voice  4  ADSR (2)
      mov al,[DSPMem+046h]
      ret

NEWSYM RDSPReg47       ; Voice  4  GAIN
      mov al,[DSPMem+047h]
      ret

NEWSYM RDSPReg48       ; Voice  4  ENVX
      mov al,[DSPMem+048h]
      and al,7Fh
      ret

NEWSYM RDSPReg49       ; Voice  4  OUTX
      mov al,[DSPMem+049h]
      ret

NEWSYM RDSPReg4A       ;
      mov al,[DSPMem+04Ah]
      ret

NEWSYM RDSPReg4B       ;
      mov al,[DSPMem+04Bh]
      ret

NEWSYM RDSPReg4C       ;
      mov al,[DSPMem+04Ch]
      ret

NEWSYM RDSPReg4D       ;
      mov al,[DSPMem+04Dh]
      ret

NEWSYM RDSPReg4E       ;
      mov al,[DSPMem+04Eh]
      ret

NEWSYM RDSPReg4F       ; Voice  4  Echo coefficient
      mov al,[DSPMem+04Fh]
      ret

NEWSYM RDSPReg50       ; Voice  5  Volume Left
      mov al,[DSPMem+50h]
      ret

NEWSYM RDSPReg51       ; Voice  5  Volume Right
      mov al,[DSPMem+51h]
      ret

NEWSYM RDSPReg52       ; Voice  5  Pitch Low
      mov al,[DSPMem+052h]
      ret

NEWSYM RDSPReg53       ; Voice  5  Pitch High
      mov al,[DSPMem+053h]
      ret

NEWSYM RDSPReg54       ; Voice  5  SCRN
      mov al,[DSPMem+054h]
      ret

NEWSYM RDSPReg55       ; Voice  5  ADSR (1)
      mov al,[DSPMem+055h]
      ret

NEWSYM RDSPReg56       ; Voice  5  ADSR (2)
      mov al,[DSPMem+056h]
      ret

NEWSYM RDSPReg57       ; Voice  5  GAIN
      mov al,[DSPMem+057h]
      ret

NEWSYM RDSPReg58       ; Voice  5  ENVX
      mov al,[DSPMem+058h]
      and al,7Fh
      ret

NEWSYM RDSPReg59       ; Voice  5  OUTX
      mov al,[DSPMem+059h]
      ret

NEWSYM RDSPReg5A       ;
      mov al,[DSPMem+05Ah]
      ret

NEWSYM RDSPReg5B       ;
      mov al,[DSPMem+05Bh]
      ret

NEWSYM RDSPReg5C       ;
      mov al,[DSPMem+05Ch]
      ret

NEWSYM RDSPReg5D       ;
      mov al,[DSPMem+05Dh]
      ret

NEWSYM RDSPReg5E       ;
      mov al,[DSPMem+05Eh]
      ret

NEWSYM RDSPReg5F       ; Voice  5  Echo coefficient
      mov al,[DSPMem+05Fh]
      ret

NEWSYM RDSPReg60       ; Voice  6  Volume Left
      mov al,[DSPMem+60h]
      ret

NEWSYM RDSPReg61       ; Voice  6  Volume Right
      mov al,[DSPMem+61h]
      ret

NEWSYM RDSPReg62       ; Voice  6  Pitch Low
      mov al,[DSPMem+062h]
      ret

NEWSYM RDSPReg63       ; Voice  6  Pitch High
      mov al,[DSPMem+063h]
      ret

NEWSYM RDSPReg64       ; Voice  6  SCRN
      mov al,[DSPMem+064h]
      ret

NEWSYM RDSPReg65       ; Voice  6  ADSR (1)
      mov al,[DSPMem+065h]
      ret

NEWSYM RDSPReg66       ; Voice  6  ADSR (2)
      mov al,[DSPMem+066h]
      ret

NEWSYM RDSPReg67       ; Voice  6  GAIN
      mov al,[DSPMem+067h]
      ret

NEWSYM RDSPReg68       ; Voice  6  ENVX
      mov al,[DSPMem+068h]
      and al,7Fh
      ret

NEWSYM RDSPReg69       ; Voice  6  OUTX
      mov al,[DSPMem+069h]
      ret

NEWSYM RDSPReg6A       ;
      mov al,[DSPMem+06Ah]
      ret

NEWSYM RDSPReg6B       ;
      mov al,[DSPMem+06Bh]
      ret

NEWSYM RDSPReg6C       ;
      mov al,[DSPMem+06Ch]
      ret

NEWSYM RDSPReg6D       ;
      mov al,[DSPMem+06Dh]
      ret

NEWSYM RDSPReg6E       ;
      mov al,[DSPMem+06Eh]
      ret

NEWSYM RDSPReg6F       ; Voice  6  Echo coefficient
      mov al,[DSPMem+06Fh]
      ret

NEWSYM RDSPReg70       ; Voice  7  Volume Left
      mov al,[DSPMem+70h]
      ret

NEWSYM RDSPReg71       ; Voice  7  Volume Right
      mov al,[DSPMem+71h]
      ret

NEWSYM RDSPReg72       ; Voice  7  Pitch Low
      mov al,[DSPMem+072h]
      ret

NEWSYM RDSPReg73       ; Voice  7  Pitch High
      mov al,[DSPMem+073h]
      ret

NEWSYM RDSPReg74       ; Voice  7  SCRN
      mov al,[DSPMem+074h]
      ret

NEWSYM RDSPReg75       ; Voice  7  ADSR (1)
      mov al,[DSPMem+075h]
      ret

NEWSYM RDSPReg76       ; Voice  7  ADSR (2)
      mov al,[DSPMem+076h]
      ret

NEWSYM RDSPReg77       ; Voice  7  GAIN
      mov al,[DSPMem+077h]
      ret

NEWSYM RDSPReg78       ; Voice  7  ENVX
      mov al,[DSPMem+078h]
      and al,7Fh
      ret

NEWSYM RDSPReg79       ; Voice  7  OUTX
      mov al,[DSPMem+079h]
      ret

NEWSYM RDSPReg7A       ;
      mov al,[DSPMem+07Ah]
      ret

NEWSYM RDSPReg7B       ;
      mov al,[DSPMem+07Bh]
      ret

NEWSYM RDSPReg7C       ;
      mov al,[DSPMem+07Ch]
      ret

NEWSYM RDSPReg7D       ;
      mov al,[DSPMem+07Dh]
      ret

NEWSYM RDSPReg7E       ;
      mov al,[DSPMem+07Eh]
      ret

NEWSYM RDSPReg7F       ; Voice  7  Echo coefficient
      mov al,[DSPMem+07Fh]
      ret

NEWSYM RDSPReg80       ;
      mov al,[DSPMem+080h]
      ret

NEWSYM RDSPReg81       ;
      mov al,[DSPMem+081h]
      ret

NEWSYM RDSPReg82       ;
      mov al,[DSPMem+082h]
      ret

NEWSYM RDSPReg83       ;
      mov al,[DSPMem+083h]
      ret

NEWSYM RDSPReg84       ;
      mov al,[DSPMem+084h]
      ret

NEWSYM RDSPReg85       ;
      mov al,[DSPMem+085h]
      ret

NEWSYM RDSPReg86       ;
      mov al,[DSPMem+086h]
      ret

NEWSYM RDSPReg87       ;
      mov al,[DSPMem+087h]
      ret

NEWSYM RDSPReg88       ;
      mov al,[DSPMem+088h]
      ret

NEWSYM RDSPReg89       ;
      mov al,[DSPMem+089h]
      ret

NEWSYM RDSPReg8A       ;
      mov al,[DSPMem+08Ah]
      ret

NEWSYM RDSPReg8B       ;
      mov al,[DSPMem+08Bh]
      ret

NEWSYM RDSPReg8C       ;
      mov al,[DSPMem+08Ch]
      ret

NEWSYM RDSPReg8D       ;
      mov al,[DSPMem+08Dh]
      ret

NEWSYM RDSPReg8E       ;
      mov al,[DSPMem+08Eh]
      ret

NEWSYM RDSPReg8F       ;
      mov al,[DSPMem+08Fh]
      ret

NEWSYM RDSPReg90       ;
      mov al,[DSPMem+090h]
      ret

NEWSYM RDSPReg91       ;
      mov al,[DSPMem+091h]
      ret

NEWSYM RDSPReg92       ;
      mov al,[DSPMem+092h]
      ret

NEWSYM RDSPReg93       ;
      mov al,[DSPMem+093h]
      ret

NEWSYM RDSPReg94       ;
      mov al,[DSPMem+094h]
      ret

NEWSYM RDSPReg95       ;
      mov al,[DSPMem+095h]
      ret

NEWSYM RDSPReg96       ;
      mov al,[DSPMem+096h]
      ret

NEWSYM RDSPReg97       ;
      mov al,[DSPMem+097h]
      ret

NEWSYM RDSPReg98       ;
      mov al,[DSPMem+098h]
      ret

NEWSYM RDSPReg99       ;
      mov al,[DSPMem+099h]
      ret

NEWSYM RDSPReg9A       ;
      mov al,[DSPMem+09Ah]
      ret

NEWSYM RDSPReg9B       ;
      mov al,[DSPMem+09Bh]
      ret

NEWSYM RDSPReg9C       ;
      mov al,[DSPMem+09Ch]
      ret

NEWSYM RDSPReg9D       ;
      mov al,[DSPMem+09Dh]
      ret

NEWSYM RDSPReg9E       ;
      mov al,[DSPMem+09Eh]
      ret

NEWSYM RDSPReg9F       ;
      mov al,[DSPMem+09Fh]
      ret

NEWSYM RDSPRegA0       ;
      mov al,[DSPMem+0A0h]
      ret