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SIDEmu.h
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SIDEmu.h
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// SIDEmu.h: Schnittstelle für die Klasse CSIDEmu.
//
//////////////////////////////////////////////////////////////////////
// Quick cut'n paste from TinySID sources
//
// The c64-emulation and the synth-renderer was written by Tammo Hinrichs (kb)
//
// Combining of the emulation and the renderer as well as improvements and bugfixes
// by Rainer Sinsch ([email protected])
//
// spreading of the source code is FORBIDDEN!!!
#if !defined(AFX_SIDEMU_H__32219DE5_C202_440C_991E_44A7A8136E44__INCLUDED_)
#define AFX_SIDEMU_H__32219DE5_C202_440C_991E_44A7A8136E44__INCLUDED_
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#include "Pseudofloat.h"
typedef unsigned char byte;
typedef unsigned short word;
typedef unsigned long dword;
class CSIDEmu
{
enum {
adc, and, asl, bcc, bcs, beq, bit, bmi, bne, bpl, brk, bvc, bvs, clc,
cld, cli, clv, cmp, cpx, cpy, dec, dex, dey, eor, inc, inx, iny, jmp,
jsr, lda, ldx, ldy, lsr, nop, ora, pha, php, pla, plp, rol, ror, rti,
rts, sbc, sec, sed, sei, sta, stx, sty, tax, tay, tsx, txa, txs, tya,
xxx};
// SID register definition
struct s6581 {
struct sidvoice {
word freq;
word pulse;
byte wave;
byte ad;
byte sr;
} v[3];
byte ffreqlo;
byte ffreqhi;
byte res_ftv;
byte ftp_vol;
};
// internal oscillator def
struct sidosc {
dword freq;
dword pulse;
byte wave;
byte filter;
dword attack;
dword decay;
dword sustain;
dword release;
dword counter; // Variablen
signed long envval;
byte envphase;
dword noisepos;
dword noiseval;
byte noiseout;
};
// internal filter def
struct sidflt {
int freq;
byte l_ena;
byte b_ena;
byte h_ena;
byte v3ena;
int vol;
int rez;
int h;
int b;
int l;
};
static float attackTimes[16];
static float decayReleaseTimes[16];
static int opcodes[256];
static int modes[256];
// --------------------------- pseudo-constants (depending on mixing freq)
dword freqmul;
int filtmul;
dword attacks [16];
dword releases[16];
// --------------------------------------------------------------- globals
struct s6581 sid;
struct sidosc osc[3];
struct sidflt filter;
// ------------------------------------------------ postprocessing filters
float filterl1,filterb1,freq,filterrez;
// --------------------------------------------------------- C64 Emu Stuff
int cycles;
byte bval;
word wval;
// -------------------------------------------------------------- Register
byte a,x,y,s,p;
word pc;
byte memory[65536];
byte memory_backup[65536];
byte get_bit(dword val, byte b);
byte getmem(word addr);
void setmem(word addr, byte value);
void sidPoke(int reg, unsigned char val);
void sidReset(void);
byte getaddr(int mode);
void setaddr(int mode, byte val);
void putaddr(int mode, byte val);
void setflags(int flag, int cond);
void push(byte val);
byte pop();
void branch(int flag);
void cpuReset();
void cpuResetTo(word npc, byte na=0, byte nx=0, byte ny=0);
int cpuParse();
public:
CSIDEmu();
virtual ~CSIDEmu();
int cpuJSR(word npc, byte na, byte nx=0, byte ny=0);
void c64Init(void);
word LoadSID(
char *filename, word *load_addr, word *init_addr,
word *play_addr);
void synth_init(dword mixfrq);
void synth_render(word *buffer, dword len);
static CSIDEmu& Instance();
};
#endif // !defined(AFX_SIDEMU_H__32219DE5_C202_440C_991E_44A7A8136E44__INCLUDED_)