businterfaceunit.h

ppc750 system design simulator using system c

/***************************************************************************
                          Memory.h  -  description
                             -------------------
    begin                : Thu May 10 2001
    copyright            : (C) 2001 Universite Paris Sud and CEA
    author               : Gilles Mouchard
    email                : [e-mail], gilles.mouchard@.cea.fr
 ***************************************************************************/

#ifndef __BUSINTERFACEUNIT_H__
#define __BUSINTERFACEUNIT_H__

#include <systemc.h>
#include <common.h>

/* Note : This is not really a bus interface. It simulate only memory accesses ! */

const int PrimaryMemoryHashTableSize = 4096;
const int SecondaryMemoryHashTableSize = 4;
const UInt32 MemoryPageSize = 4096;

struct MemoryPageTableEntry
{
	UInt32 addr;
	struct MemoryPageTableEntry *next;
	UInt8 *storage;
};

struct SecondaryMemoryHashTable
{
	MemoryPageTableEntry *pte[SecondaryMemoryHashTableSize];
};

SC_MODULE(BusInterfaceUnit)
{
	sc_in<bool> inClock;
	
	/* From Data Cache */
	sc_in<bool> inDCacheReq; // Requ阾e du cache de donnee
	sc_in<bool> inDCacheWrite; // Ecriture/Lecture
	sc_in<UInt32> inDCacheAddr; // Adresse de la donn閑