2006-07-18 02:53:36 +00:00
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/* FCE Ultra - NES/Famicom Emulator
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*
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* Copyright notice for this file:
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* Copyright (C) 2002 Xodnizel
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _X6502H
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#include "x6502struct.h"
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2006-07-24 04:18:46 +00:00
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extern X6502 X;
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#define _PC X.PC
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#define _A X.A
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#define _X X.X
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#define _Y X.Y
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#define _S X.S
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#define _P X.P
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#define _PI X.mooPI
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#define _DB X.DB
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#define _count X.count
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#define _tcount X.tcount
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#define _IRQlow X.IRQlow
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#define _jammed X.jammed
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//the opsize table is used to quickly grab the instruction sizes (in bytes)
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static const uint8 opsize[256] = {
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/*0x00*/ 1,2,0,0,0,2,2,0,1,2,1,0,0,3,3,0,
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/*0x10*/ 2,2,0,0,0,2,2,0,1,3,0,0,0,3,3,0,
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/*0x20*/ 3,2,0,0,2,2,2,0,1,2,1,0,3,3,3,0,
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/*0x30*/ 2,2,0,0,0,2,2,0,1,3,0,0,0,3,3,0,
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/*0x40*/ 1,2,0,0,0,2,2,0,1,2,1,0,3,3,3,0,
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/*0x50*/ 2,2,0,0,0,2,2,0,1,3,0,0,0,3,3,0,
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/*0x60*/ 1,2,0,0,0,2,2,0,1,2,1,0,3,3,3,0,
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/*0x70*/ 2,2,0,0,0,2,2,0,1,3,0,0,0,3,3,0,
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/*0x80*/ 0,2,0,0,2,2,2,0,1,0,1,0,3,3,3,0,
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/*0x90*/ 2,2,0,0,2,2,2,0,1,3,1,0,0,3,0,0,
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/*0xA0*/ 2,2,2,0,2,2,2,0,1,2,1,0,3,3,3,0,
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/*0xB0*/ 2,2,0,0,2,2,2,0,1,3,1,0,3,3,3,0,
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/*0xC0*/ 2,2,0,0,2,2,2,0,1,2,1,0,3,3,3,0,
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/*0xD0*/ 2,2,0,0,0,2,2,0,1,3,0,0,0,3,3,0,
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/*0xE0*/ 2,2,0,0,2,2,2,0,1,2,1,0,3,3,3,0,
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/*0xF0*/ 2,2,0,0,0,2,2,0,1,3,0,0,0,3,3,0
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};
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/*
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the optype table is a quick way to grab the addressing mode for any 6502 opcode
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0 = Implied\Accumulator\Immediate\Branch\NULL
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1 = (Indirect,X)
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2 = Zero Page
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3 = Absolute
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4 = (Indirect),Y
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5 = Zero Page,X
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6 = Absolute,Y
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7 = Absolute,X
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8 = Zero Page,Y
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*/
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static const uint8 optype[256] = {
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/*0x00*/ 0,1,0,0,0,2,2,0,0,0,0,0,0,3,3,0,
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/*0x10*/ 0,4,0,0,0,5,5,0,0,6,0,0,0,7,7,0,
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/*0x20*/ 0,1,0,0,2,2,2,0,0,0,0,0,3,3,3,0,
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/*0x30*/ 0,4,0,0,0,5,5,0,0,6,0,0,0,7,7,0,
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/*0x40*/ 0,1,0,0,0,2,2,0,0,0,0,0,0,3,3,0,
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/*0x50*/ 0,4,0,0,0,5,5,0,0,6,0,0,0,7,7,0,
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/*0x60*/ 0,1,0,0,0,2,2,0,0,0,0,0,3,3,3,0,
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/*0x70*/ 0,4,0,0,0,5,5,0,0,6,0,0,0,7,7,0,
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/*0x80*/ 0,1,0,0,2,2,2,0,0,0,0,0,3,3,3,0,
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/*0x90*/ 0,4,0,0,5,5,8,0,0,6,0,0,0,7,0,0,
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/*0xA0*/ 0,1,0,0,2,2,2,0,0,0,0,0,3,3,3,0,
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/*0xB0*/ 0,4,0,0,5,5,8,0,0,6,0,0,7,7,6,0,
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/*0xC0*/ 0,1,0,0,2,2,2,0,0,0,0,0,3,3,3,0,
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/*0xD0*/ 0,4,0,0,0,5,5,0,0,6,0,0,0,7,7,0,
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/*0xE0*/ 0,1,0,0,2,2,2,0,0,0,0,0,3,3,3,0,
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/*0xF0*/ 0,4,0,0,0,5,5,0,0,6,0,0,0,7,7,0
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};
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//-----------
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//mbg 6/30/06 - some of this was removed to mimic XD
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//#ifdef FCEUDEF_DEBUGGER
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void X6502_Debug(void (*CPUHook)(X6502 *),
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uint8 (*ReadHook)(X6502 *, unsigned int),
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void (*WriteHook)(X6502 *, unsigned int, uint8));
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//extern void (*X6502_Run)(int32 cycles);
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//#else
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//void X6502_Run(int32 cycles);
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//#endif
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void X6502_RunDebug(int32 cycles);
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#define X6502_Run(x) X6502_RunDebug(x)
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2006-07-23 00:08:12 +00:00
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//------------
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2006-07-18 02:53:36 +00:00
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extern uint32 timestamp;
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2006-07-24 04:18:46 +00:00
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2006-07-18 02:53:36 +00:00
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#define N_FLAG 0x80
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#define V_FLAG 0x40
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#define U_FLAG 0x20
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#define B_FLAG 0x10
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#define D_FLAG 0x08
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#define I_FLAG 0x04
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#define Z_FLAG 0x02
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#define C_FLAG 0x01
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extern void FP_FASTAPASS(1) (*MapIRQHook)(int a);
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#define NTSC_CPU 1789772.7272727272727272
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#define PAL_CPU 1662607.125
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#define FCEU_IQEXT 0x001
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#define FCEU_IQEXT2 0x002
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/* ... */
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#define FCEU_IQRESET 0x020
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#define FCEU_IQNMI2 0x040 // Delayed NMI, gets converted to *_IQNMI
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#define FCEU_IQNMI 0x080
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#define FCEU_IQDPCM 0x100
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#define FCEU_IQFCOUNT 0x200
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#define FCEU_IQTEMP 0x800
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void X6502_Init(void);
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void X6502_Reset(void);
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void X6502_Power(void);
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void TriggerNMI(void);
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void TriggerNMI2(void);
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uint8 FASTAPASS(1) X6502_DMR(uint32 A);
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void FASTAPASS(2) X6502_DMW(uint32 A, uint8 V);
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void FASTAPASS(1) X6502_IRQBegin(int w);
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void FASTAPASS(1) X6502_IRQEnd(int w);
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#define _X6502H
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#endif
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