x6502.h

/* FCE Ultra - NES/Famicom Emulator
 *
 * Copyright notice for this file:
 *  Copyright (C) 2002 Xodnizel
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

#ifndef _X6502H
#define _X6502H

#include "x6502struct.h"

#ifdef FCEUDEF_DEBUGGER
void X6502_Debug(void (*CPUHook)(X6502 *),
				 uint8 (*ReadHook)(X6502 *, uint32),
				 void (*WriteHook)(X6502 *, uint32, uint8));

extern void (*X6502_Run)(int32 cycles);
#else
void X6502_Run(int32 cycles);
#endif

extern uint32 timestamp;
extern uint32 sound_timestamp;
extern X6502 X;

#define N_FLAG  0x80
#define V_FLAG  0x40
#define U_FLAG  0x20
#define B_FLAG  0x10
#define D_FLAG  0x08
#define I_FLAG  0x04
#define Z_FLAG  0x02
#define C_FLAG  0x01

extern void FP_FASTAPASS(1) (*MapIRQHook)(int a);

#ifndef TARGET_GNW
#define NTSC_CPU (dendy ? 1773447.467 : 1789772.7272727272727272)
#define PAL_CPU  1662607.125
#else // On G&W we want to be as close as possible to real 50 and 60Hz
#define NTSC_CPU    1786730 
#define PAL_CPU     1662375
#endif

#define FCEU_IQEXT      0x001
#define FCEU_IQEXT2     0x002
/* ... */
#define FCEU_IQRESET    0x020
#define FCEU_IQNMI2  0x040	/* Delayed NMI, gets converted to *_IQNMI */
#define FCEU_IQNMI  0x080
#define FCEU_IQDPCM     0x100
#define FCEU_IQFCOUNT   0x200
#define FCEU_IQTEMP     0x800

void X6502_Init(void);
void X6502_Reset(void);
void X6502_Power(void);

void TriggerNMI(void);
void TriggerNMI2(void);

uint8 FASTAPASS(1) X6502_DMR(uint32 A);
void FASTAPASS(2) X6502_DMW(uint32 A, uint8 V);

void FASTAPASS(1) X6502_IRQBegin(int w);
void FASTAPASS(1) X6502_IRQEnd(int w);

#endif