exception_handler.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        Exception_Handler.h
 * @brief      
 * @author      Chenfeng Zhou <[e-mail]> 
 *
 * Created    : <2005-03-07 19:50:41 by Cheney Chow>
 * Last update: <2005-03-07 19:58:23 by Cheney Chow>
 *
 * $Id: Exception_Handler.h,v 1.1 2005/06/16 06:01:45 qilj Exp $
 */
///==================================================

#ifndef _PPC_EXCEPTION_HANDLER_H_
#define _PPC_EXCEPTION_HANDLER_H_

#include "Core/Global.h"
#include "Reg_Utils.h"

namespace PPC
{

    class Exception_Handler
    {
    protected:
        Exception_Handler () {}
        virtual ~Exception_Handler () {}

	public:
		virtual void handle (Core::u32 flag = 0, Core::u32 a = 0) = 0;

	protected:

		//! For PPC44x, it seems more flexible coz the interupt offset can be
		//! caculated dynamically;
		//!
		//! interrupt vector address,
		//! which is specific to the interrupt type, and is determined as follows:
		//! IVPR0:15 || IVORn16:27 || 0b0000
		static Core::u32 gen_interupt_vec (Core::u32 ivor_n) 
		{
			return (REG_TO_INT(REG(IVPR)) & 0xffff0000) | (ivor_n & 0xfff0); 
		}
    };
    
	class DSI_Handler : public Exception_Handler 
	{
	public:
		virtual ~DSI_Handler () {}

		virtual void handle(Core::u32 flag = 0, Core::u32 a = 0);
	};

	class ISI_Handler : public Exception_Handler 
	{
	public:
		virtual ~ISI_Handler () {}

		virtual void handle(Core::u32 flag = 0, Core::u32 a = 0);
	};

	class DEC_Handler : public Exception_Handler 
	{
	public:
		virtual ~DEC_Handler () {}

		virtual void handle(Core::u32 flag = 0, Core::u32 a = 0);
	};

	class EXT_INT_Handler : public Exception_Handler 
	{
	public:
		virtual ~EXT_INT_Handler () {}

		virtual void handle(Core::u32 flag = 0, Core::u32 a = 0);
	};

	class SC_Handler : public Exception_Handler 
	{
	public:
		virtual ~SC_Handler () {}

		virtual void handle(Core::u32 flag = 0, Core::u32 a = 0);
	};

	class NO_FPU_Handler : public Exception_Handler 
	{
	public:
		virtual ~NO_FPU_Handler () {}

		virtual void handle(Core::u32 flag = 0, Core::u32 a = 0);
	};

	class PROGRAM_Handler : public Exception_Handler 
	{
	public:
		virtual ~PROGRAM_Handler () {}

		virtual void handle(Core::u32 flag = 0, Core::u32 a = 0);
	};

	class FLOAT_ASSIT_Handler : public Exception_Handler 
	{
	public:
		virtual ~FLOAT_ASSIT_Handler () {}

		virtual void handle(Core::u32 flag = 0, Core::u32 a = 0);
	};

	class MACHINE_CHECK_Handler : public Exception_Handler 
	{
	public:
		virtual ~MACHINE_CHECK_Handler () {}

		virtual void handle(Core::u32 flag = 0, Core::u32 a = 0);
	};

	class TRACE_Handler : public Exception_Handler 
	{
	public:
		virtual ~TRACE_Handler () {}

		virtual void handle(Core::u32 flag = 0, Core::u32 a = 0);
	};

	class INSTR_TLB_Handler : public Exception_Handler 
	{
	public:
		virtual ~INSTR_TLB_Handler () {}

		virtual void handle(Core::u32 flag = 0, Core::u32 a = 0);
	};

	class DATA_TLB_Handler : public Exception_Handler 
	{
	public:
		virtual ~DATA_TLB_Handler () {}

		virtual void handle(Core::u32 flag = 0, Core::u32 a = 0);
	};
} // namespace PPC

#endif  // _PPC_EXCEPTION_HANDLER_H_