globalvar.cpp

一款国产的8051模拟器（全部源代码） 本软件是一款8051模拟器

// GlobalVar.cpp: implementation of the GlobalVar class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"

//#include "8051class.h"
#include "GlobalVar.h"
#include "..\DeviceManager.h"
#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif
GlobalVar * var8051[CPUNUM];
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

//BYTE  xdata[65536];//外部数据内存
//BYTE  code[65536];//外部代码内存

GlobalVar::GlobalVar()
{
	isready=0;
}

GlobalVar::~GlobalVar()
{
#if OS!=1
	delete IPC;
	delete inst;
	delete KMsg;
	delete mem;
	delete pTIMER;
#endif
#if OS==1
	VirtualFree(IPC,sizeof(InterruptController),MEM_DECOMMIT);
	VirtualFree(inst,sizeof(instruction),MEM_DECOMMIT);
	VirtualFree(KMsg,sizeof(kernelMsg),MEM_DECOMMIT);
	VirtualFree(mem,sizeof(memory),MEM_DECOMMIT);
	VirtualFree(pTIMER,sizeof(TIMER),MEM_DECOMMIT);
#endif
}
//5个小时就为了找这个BUG.............VirtualAlloc方式产生C++实例必须构造，否则一些情况下会产生错误
//因为有些内存是需要初始化的，比如虚拟函数表，只有调用了构造函数才可以初始化虚拟函数表

int GlobalVar::init()
{
	memset(NAME,0,512);
#if OS!=1
	mem=new memory;//初始化内存类
#endif
#if OS==1
	mem=(memory *)VirtualAlloc(NULL,sizeof(memory),MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
	mem->memory::memory();
#endif
	//mem->pcode=code;
	//mem->pxdata=xdata;
	mem->init();
	mem->MemReset();

#if OS!=1
	inst=new instruction;
#endif
#if OS==1
	inst=(instruction *)VirtualAlloc(NULL,sizeof(instruction),MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
	inst->instruction::instruction();
#endif	
	inst->mem=mem;//初始化指令类
	inst->CreateMap();	

#if OS!=1
	KMsg=new kernelMsg;
#endif
#if OS==1
	KMsg=(kernelMsg *)VirtualAlloc(NULL,sizeof(kernelMsg),MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
	KMsg->kernelMsg::kernelMsg();
#endif
	KMsg->mem=mem;
	KMsg->init();
	inst->pKMsg=KMsg;
	inst->init();
#if OS!=1
	IPC=new InterruptController;
#endif
#if OS==1
	IPC=(InterruptController *)VirtualAlloc(NULL,sizeof(InterruptController),MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
	IPC->InterruptController::InterruptController();
#endif
	IPC->SetMem(inst);
	IPC->pKMsg=KMsg;
	IPC->init();

#if OS!=1
	pTIMER=new TIMER;
#endif
#if OS==1
	pTIMER=(TIMER *)VirtualAlloc(NULL,sizeof(TIMER),MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
	pTIMER->TIMER::TIMER();
#endif
	
	pTIMER->pKMsg=KMsg;
	pTIMER->mem=mem;
	pTIMER->init();

#if OS!=1
	PS=new Serial;
#endif
#if OS==1
	PS=(Serial *)VirtualAlloc(NULL,sizeof(Serial),MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
	PS->Serial::Serial();//kao,基础太差产生的BUG
#endif
	
	PS->pKMsg=KMsg;
	PS->mem=mem;
	PS->init();
	isready|=ID_INIT_READY;
	return true;
}

void GlobalVar::SetFqy(unsigned int f=22118400)
{
	fqy=f;
}


int GlobalVar::SetMem(BYTE *pcodemem, BYTE *pxdatamem)
{
	mem->pcode=pcodemem;
	mem->pxdata=pxdatamem;
	isready|=ID_MEM_READY;
	return 1;
}