请求页式存储管理的模拟实现_参考代码

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1、do_init(){inti,j;srand(time(NULL));for(i=0;i

2、break;case2:pageTable[i].proType=EXECUTABLE;break;case3:pageTable[i].proType=READABLEIWRITABLE;break;case4:pageTable[i].proType=READABLEIEXECUTABLE;break;case5:pageTable[i].proType=WRITABLEIEXECUTABLE;break;case6:pageTable[i].proType=READABLEIWRITABLEIEXECU

3、TABLE;break;default:break;pageTable[i].auxAddr=i*PAGE_SIZE*2;〃逻辑页的外存地址}for(j=0;j

4、e0:ptr_memAccReq.reqType=REQUEST_READ;info.Format(_T("产生请求：类型：读取t”))；out->SetSel(-l,-1);out->ReplaceSel(info);break;case1:ptr_memAccReq.reqType=REQUEST_WRITE;ptr_memAccReq.value=rand()%OxFFu;info.Format(_T("产生请求：类型：写入t值：%02xt"),ptr_memAccReq.valu

5、e);out->SetSel(-l,-1);out->ReplaceSel(info);break;case2:ptr_memAccReq.reqType=REQUEST_EXECUTE;info.Format(_T("产生请求：类型：执行t”))；out->SetSel(-l,-1);out->ReplaceSel(info);break;default:break;}}do_response(){Ptr_PageTableItemptr_pageTabIt;unsignedintpageNum^

6、offAddr;unsignedintactAddr;CStringinfo;if(ptr_memAccReq.virAddr=VIRTUAL_MEMORY_SIZE){do_error(ERROR_OVER_BOUNDARY);return;}pageNum=ptr_memAccReq.virAddr/PAGE_SIZE;offAddr=ptr_memAccReq.virAddr%PAGE_SIZE;info.Format(_T(u页号：%ut页内偏移：

7、%u"),pageNum,offAddr);out->SetSel(-l,-1);out->ReplaceSel(info);ptr_pageTabIt=&pageTable[pageNum];if(!ptr_pageTabIt->effective)do_page_fault(ptr_pageTabIt);else{info.Format(_T(”页面在内存，不用调页”))；out->SetSel(-l,-1);out->ReplaceSel(info);}actAddr=ptr_pageTab

8、It->blockNum*PAGE_SIZE+offAddr;info.Format(_T(”实地址为:%u"),actAddr);out->SetSel(-l,-1);out->ReplaceSel(info);switch(ptr_memAccReq.reqType){caseREQUEST_READ:ptr_pageTabIt->count++;if(!(ptr_pageTabIt->pr