/*
 * Project 64 - A Nintendo 64 emulator.
 *
 * (c) Copyright 2001 zilmar (zilmar@emulation64.com) and
 * Jabo (jabo@emulation64.com).
 *
 * pj64 homepage: www.pj64.net
 *
 * Permission to use, copy, modify and distribute Project64 in both binary and
 * source form, for non-commercial purposes, is hereby granted without fee,
 * providing that this license information and copyright notice appear with
 * all copies and any derived work.
 *
 * This software is provided 'as-is', without any express or implied
 * warranty. In no event shall the authors be held liable for any damages
 * arising from the use of this software.
 *
 * Project64 is freeware for PERSONAL USE only. Commercial users should
 * seek permission of the copyright holders first. Commercial use includes
 * charging money for Project64 or software derived from Project64.
 *
 * The copyright holders request that bug fixes and improvements to the code
 * should be forwarded to them so if they want them.
 *
 */
#ifndef _CPU_H_
#define _CPU_H_

#include "interpreter_cpu.h"
#include "interpreter_ops.h"
#include "registers.h"
#include "tlb.h"
#include "memory.h"
#include "dma.h"
#include "exception.h"
#include "pif.h"
#include "opcode.h"
#include "usf.h"

#define COUNT_PER_OP_DEFAULT 2

typedef struct {
	int32_t DoSomething;
	int32_t CloseCPU;
	int32_t CheckInterrupts;
	int32_t DoInterrupt;
} CPU_ACTION;

#define MaxTimers				3
#define CompareTimer			0
#define ViTimer					1
#define AiTimer					2

typedef struct {
	int32_t NextTimer[MaxTimers];
	int32_t Active[MaxTimers];
	int32_t CurrentTimerType;
	int32_t Timer;
} SYSTEM_TIMERS;

void ChangeCompareTimer ( usf_state_t * );
void ChangeTimer        ( usf_state_t *, int32_t Type, int32_t Value );
void CheckTimer         ( usf_state_t * );
void CloseCpu           ( usf_state_t * );
int32_t  DelaySlotEffectsCompare ( usf_state_t *, uint32_t PC, uint32_t Reg1, uint32_t Reg2 );
int32_t  DelaySlotEffectsJump ( usf_state_t *, uint32_t JumpPC);
void DoSomething        ( usf_state_t * );
void InPermLoop         ( usf_state_t * );
void InitiliazeCPUFlags ( usf_state_t * );
void RefreshScreen      ( usf_state_t * );
void RunRsp             ( usf_state_t * );
void StartEmulation     ( usf_state_t * );
void TimerDone          ( usf_state_t * );
void RecompileTimerDone ( usf_state_t * );

#define NORMAL					0
#define DO_DELAY_SLOT			1
#define DO_END_DELAY_SLOT		2
#define DELAY_SLOT				3
#define END_DELAY_SLOT			4
#define LIKELY_DELAY_SLOT		5
#define JUMP	 				6
#define DELAY_SLOT_DONE			7
#define LIKELY_DELAY_SLOT_DONE	8
#define END_BLOCK 				9

enum SaveType {
	Auto,
	Eeprom_4K,
	Eeprom_16K,
	Sram,
	FlashRam
};

void StartEmulationFromSave ( usf_state_t * state, void * savestate );

#endif