/* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _X6502H
#include "x6502struct.h"
extern X6502 X;
#define _PC X.PC
#define _A X.A
#define _X X.X
#define _Y X.Y
#define _S X.S
#define _P X.P
#define _PI X.mooPI
#define _DB X.DB
#define _count X.count
#define _tcount X.tcount
#define _IRQlow X.IRQlow
#define _jammed X.jammed
//the opsize table is used to quickly grab the instruction sizes (in bytes)
static const uint8 opsize[256] = {
/*0x00*/ 1,2,0,0,0,2,2,0,1,2,1,0,0,3,3,0,
/*0x10*/ 2,2,0,0,0,2,2,0,1,3,0,0,0,3,3,0,
/*0x20*/ 3,2,0,0,2,2,2,0,1,2,1,0,3,3,3,0,
/*0x30*/ 2,2,0,0,0,2,2,0,1,3,0,0,0,3,3,0,
/*0x40*/ 1,2,0,0,0,2,2,0,1,2,1,0,3,3,3,0,
/*0x50*/ 2,2,0,0,0,2,2,0,1,3,0,0,0,3,3,0,
/*0x60*/ 1,2,0,0,0,2,2,0,1,2,1,0,3,3,3,0,
/*0x70*/ 2,2,0,0,0,2,2,0,1,3,0,0,0,3,3,0,
/*0x80*/ 0,2,0,0,2,2,2,0,1,0,1,0,3,3,3,0,
/*0x90*/ 2,2,0,0,2,2,2,0,1,3,1,0,0,3,0,0,
/*0xA0*/ 2,2,2,0,2,2,2,0,1,2,1,0,3,3,3,0,
/*0xB0*/ 2,2,0,0,2,2,2,0,1,3,1,0,3,3,3,0,
/*0xC0*/ 2,2,0,0,2,2,2,0,1,2,1,0,3,3,3,0,
/*0xD0*/ 2,2,0,0,0,2,2,0,1,3,0,0,0,3,3,0,
/*0xE0*/ 2,2,0,0,2,2,2,0,1,2,1,0,3,3,3,0,
/*0xF0*/ 2,2,0,0,0,2,2,0,1,3,0,0,0,3,3,0
};
/*
the optype table is a quick way to grab the addressing mode for any 6502 opcode
0 = Implied\Accumulator\Immediate\Branch\NULL
1 = (Indirect,X)
2 = Zero Page
3 = Absolute
4 = (Indirect),Y
5 = Zero Page,X
6 = Absolute,Y
7 = Absolute,X
8 = Zero Page,Y
*/
static const uint8 optype[256] = {
/*0x00*/ 0,1,0,0,0,2,2,0,0,0,0,0,0,3,3,0,
/*0x10*/ 0,4,0,0,0,5,5,0,0,6,0,0,0,7,7,0,
/*0x20*/ 0,1,0,0,2,2,2,0,0,0,0,0,3,3,3,0,
/*0x30*/ 0,4,0,0,0,5,5,0,0,6,0,0,0,7,7,0,
/*0x40*/ 0,1,0,0,0,2,2,0,0,0,0,0,0,3,3,0,
/*0x50*/ 0,4,0,0,0,5,5,0,0,6,0,0,0,7,7,0,
/*0x60*/ 0,1,0,0,0,2,2,0,0,0,0,0,3,3,3,0,
/*0x70*/ 0,4,0,0,0,5,5,0,0,6,0,0,0,7,7,0,
/*0x80*/ 0,1,0,0,2,2,2,0,0,0,0,0,3,3,3,0,
/*0x90*/ 0,4,0,0,5,5,8,0,0,6,0,0,0,7,0,0,
/*0xA0*/ 0,1,0,0,2,2,2,0,0,0,0,0,3,3,3,0,
/*0xB0*/ 0,4,0,0,5,5,8,0,0,6,0,0,7,7,6,0,
/*0xC0*/ 0,1,0,0,2,2,2,0,0,0,0,0,3,3,3,0,
/*0xD0*/ 0,4,0,0,0,5,5,0,0,6,0,0,0,7,7,0,
/*0xE0*/ 0,1,0,0,2,2,2,0,0,0,0,0,3,3,3,0,
/*0xF0*/ 0,4,0,0,0,5,5,0,0,6,0,0,0,7,7,0
};
//-----------
//mbg 6/30/06 - some of this was removed to mimic XD
//#ifdef FCEUDEF_DEBUGGER
void X6502_Debug(void (*CPUHook)(X6502 *),
uint8 (*ReadHook)(X6502 *, unsigned int),
void (*WriteHook)(X6502 *, unsigned int, uint8));
//extern void (*X6502_Run)(int32 cycles);
//#else
//void X6502_Run(int32 cycles);
//#endif
void X6502_RunDebug(int32 cycles);
#define X6502_Run(x) X6502_RunDebug(x)
//------------
extern uint32 timestamp;
#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);
#define NTSC_CPU 1789772.7272727272727272
#define PAL_CPU 1662607.125
#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);
#define _X6502H
#endif