project64/Source/Project64/N64 System/Recompiler/Loop Analysis.h

#pragma once

class CCodeSection;
class CCodeBlock;

class LoopAnalysis
{
	enum { MAX_TESTCHANGED = 1000 };
public:
	LoopAnalysis(CCodeBlock * CodeBlock, CCodeSection * Section);
	~LoopAnalysis();

	bool SetupRegisterForLoop ( void );

private:
	LoopAnalysis(void);								// Disable default constructor
	LoopAnalysis(const LoopAnalysis&);				// Disable copy constructor
	LoopAnalysis& operator=(const LoopAnalysis&);	// Disable assignment

	bool SetupEnterSection ( CCodeSection * Section );
	bool CheckLoopRegisterUsage ( CCodeSection * Section );
	bool SyncRegState ( CRegInfo & RegSet, const CRegInfo SyncReg );
	void SetJumpRegSet ( CCodeSection * Section, const CRegInfo &Reg );
	void SetContinueRegSet ( CCodeSection * Section, const CRegInfo &Reg );

	/********************** R4300i OpCodes: Special **********************/
	void SPECIAL_SLL     ( void );
	void SPECIAL_SRL     ( void );
	void SPECIAL_SRA     ( void );
	void SPECIAL_SLLV    ( void );
	void SPECIAL_SRLV    ( void );
	void SPECIAL_SRAV    ( void );
	void SPECIAL_JR      ( void );
	void SPECIAL_JALR    ( void );
	void SPECIAL_SYSCALL ( void );
	void SPECIAL_BREAK   ( void );
	void SPECIAL_MFHI    ( void );
	void SPECIAL_MTHI    ( void );
	void SPECIAL_MFLO    ( void );
	void SPECIAL_MTLO    ( void );
	void SPECIAL_DSLLV   ( void );
	void SPECIAL_DSRLV   ( void );
	void SPECIAL_DSRAV   ( void );
	void SPECIAL_ADD     ( void );
	void SPECIAL_ADDU    ( void );
	void SPECIAL_SUB     ( void );
	void SPECIAL_SUBU    ( void );
	void SPECIAL_AND     ( void );
	void SPECIAL_OR      ( void );
	void SPECIAL_XOR     ( void );
	void SPECIAL_NOR     ( void );
	void SPECIAL_SLT     ( void );
	void SPECIAL_SLTU    ( void );
	void SPECIAL_DADD    ( void );
	void SPECIAL_DADDU   ( void );
	void SPECIAL_DSUB    ( void );
	void SPECIAL_DSUBU   ( void );
	void SPECIAL_DSLL    ( void );
	void SPECIAL_DSRL    ( void );
	void SPECIAL_DSRA    ( void );
	void SPECIAL_DSLL32  ( void );
	void SPECIAL_DSRL32  ( void );
	void SPECIAL_DSRA32  ( void );

	typedef std::map<int,CRegInfo *> RegisterMap;

	RegisterMap    m_EnterRegisters;
	RegisterMap    m_ContinueRegisters;
	RegisterMap    m_JumpRegisters;
	CCodeSection * m_EnterSection;
	CCodeBlock   * m_BlockInfo;
	DWORD          m_PC;
	CRegInfo	   m_Reg;
	STEP_TYPE      m_NextInstruction;
	OPCODE         m_Command;
	DWORD          m_Test;
	DWORD          m_TestChanged;
};