mirror of
https://github.com/RetroDECK/Supermodel.git
synced 2024-11-22 22:05:38 +00:00
816d541b98
- Ported MAME's implementation - Corrected FM sound for songs in VF3 that use it - Music tempo now closer to real hardware thanks to emulating two SCSP chips. - Add LegacySoundDSP config option for games with SCSP DSP glitches (ex. engine noises in Sega Rally 2, and loud garbage on Bahn's stage in Fighting Vipers 2) - Renamed SysFPS to "SoundClock" (since raising this appears to adjust the sound frequency). (Submitted by Paul Prosser)
88 lines
2.2 KiB
C
88 lines
2.2 KiB
C
/**
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** Supermodel
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** A Sega Model 3 Arcade Emulator.
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** Copyright 2011 Bart Trzynadlowski, Nik Henson
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**
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** This file is part of Supermodel.
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**
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** Supermodel is free software: you can redistribute it and/or modify it under
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** the terms of the GNU General Public License as published by the Free
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** Software Foundation, either version 3 of the License, or (at your option)
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** any later version.
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**
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** Supermodel is distributed in the hope that it will be useful, but WITHOUT
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** ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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** FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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** more details.
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**
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** You should have received a copy of the GNU General Public License along
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** with Supermodel. If not, see <http://www.gnu.org/licenses/>.
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**/
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/*
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* SCSPDSP.h
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*
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* Header file for SCSP DSP emulation. Used only by SCSP.cpp; do not use
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* externally.
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*/
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#ifndef INCLUDED_SCSPDSP_H
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#define INCLUDED_SCSPDSP_H
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//#define DYNDSP
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#define DYNOPT 1 //set to 1 to enable optimization of recompiler
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//the DSP Context
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struct _SCSPDSP
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{
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//Config
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UINT16 *SCSPRAM;
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UINT32 SCSPRAM_LENGTH;
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unsigned int RBP; //Ring buf pointer
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unsigned int RBL; //Delay ram (Ring buffer) size in words
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//context
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INT16 COEF[64]; //16 bit signed
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UINT16 MADRS[32]; //offsets (in words), 16 bit
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UINT16 MPRO[128*4]; //128 steps 64 bit
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INT32 TEMP[128]; //TEMP regs,24 bit signed
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INT32 MEMS[32]; //MEMS regs,24 bit signed
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unsigned int DEC;
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//input
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INT32 MIXS[16]; //MIXS, 24 bit signed
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INT16 EXTS[2]; //External inputs (CDDA) 16 bit signed
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//output
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INT16 EFREG[16]; //EFREG, 16 bit signed
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bool Stopped;
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int LastStep;
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#ifdef DYNDSP
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INT32 ACC; //26 bit
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INT32 SHIFTED; //24 bit
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INT32 X; //24 bit
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INT32 Y; //13 bit
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INT32 B; //26 bit
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INT32 INPUTS; //24 bit
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INT32 MEMVAL;
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INT32 FRC_REG; //13 bit
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INT32 Y_REG; //24 bit
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UINT32 ADDR;
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UINT32 ADRS_REG; //13 bit
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void (*DoSteps)();
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#endif
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};
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void SCSPDSP_Init(_SCSPDSP *DSP);
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void SCSPDSP_SetSample(_SCSPDSP *DSP,INT32 sample,int SEL,int MXL);
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void SCSPDSP_Step(_SCSPDSP *DSP);
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void SCSPDSP_Start(_SCSPDSP *DSP);
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#endif // INCLUDED_SCSPDSP_H
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