ls_instruction.h

浙江大学的悟空嵌入式系统模拟器

/*
 *  Copyright (c) 2005 Zhejiang University, P.R.China
 *
 *  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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */ 

//=============================================================================
/**
 *  \file    ARM/LS_Instruction.h
 *
 *  $Id: LS_Instruction.h,v 1.2 2005/06/16 05:49:36 chenj Exp $
 *
 *  \author  Jie Chen <[e-mail]> 
 */
//=============================================================================
#ifndef ARM__LS_INSTRUCTION_H_INCLUDED
#define ARM__LS_INSTRUCTION_H_INCLUDED

#include "Instruction.h"

namespace ARM { 

//!the class simulates the memory access instructions
class LS_Instruction: public ARM::Instruction
{
protected:

//	virtual bool test_and_parse(Core::Instruction_Unit & binary);

	virtual void execute(Core::Instruction_Unit  binary);
	
	//!addressing mode of word or unsigned byte loading
	void get_address(Core::Instruction_Unit & binary,u32 & addr);

	//!addressing mode of half word or signed byte loading
	void get_sh_address(Core::Instruction_Unit & binary,u32 & addr);

	//!shift the value of register Rm
	void shft_rm(Core::Instruction_Unit & binary,u32 & index);

	//!addressing mode of word or unsigned byte loading with forcing usermode
	void get_usermode_address(Core::Instruction_Unit & binary,u32 & addr);

	//!execution of LDR
	void LDR(Core::Instruction_Unit & binary);

	//!execution of LDRB
	void LDRB(Core::Instruction_Unit & binary);

	//!execution of LDRBT
	void LDRBT(Core::Instruction_Unit & binary);

	//!execution of LDRH
	void LDRH(Core::Instruction_Unit & binary);

	//!execution of LDRSB
	void LDRSB(Core::Instruction_Unit & binary);

	//!execution of LDRSH
	void LDRSH(Core::Instruction_Unit & binary);

	//!execution of LDRT
	void LDRT(Core::Instruction_Unit & binary);

	//!execution of STR
	void STR(Core::Instruction_Unit & binary);

	//!execution of STRB
	void STRB(Core::Instruction_Unit & binary);

	//!execution of STRBT
	void STRBT(Core::Instruction_Unit & binary);

	//!execution of STRH
	void STRH(Core::Instruction_Unit & binary);

	//!execution of STRT
	void STRT(Core::Instruction_Unit & binary);

	DECLARE_SINGLETON(LS_Instruction)
};

} //namespace




#endif