北大 nachos 操作系統(tǒng) 實(shí)驗(yàn) 答案

1、目錄i第一章緒論....................................................................................................................1第一節(jié)NACHOS概述....................................................................................

2、...............1一、引言...................................................................................................................1二、Nachos教學(xué)用操作系統(tǒng).....................................................................

3、.................1第二節(jié)NACHOS的實(shí)驗(yàn)環(huán)境........................................................................................4一、Nachos的安裝........................................................................................

4、............4二、Nachos的目錄結(jié)構(gòu).............................................................................................4三、各個(gè)部分的編譯運(yùn)行.........................................................................................

5、.4四、應(yīng)用程序的編譯.................................................................................................5第二章機(jī)器模擬........................................................................................................

6、.....6第一節(jié)概述..............................................................................................................6第二節(jié)機(jī)器模擬的實(shí)現(xiàn)........................................................................................

7、.....101.Sysdep模塊分析（文件sysdep.ccsysdep.h）..........................................................101.1PoolFile函數(shù)..................................................................................................101.2Open

8、FWrite函數(shù)..........................................................................................101.3OpenFReadWrite函數(shù)...................................................................................101.4Read函數(shù).......

9、................................................................................................101.5ReadPartial函數(shù)..............................................................................................111.6WriteFi

10、le函數(shù).................................................................................................111.7Lseek函數(shù)......................................................................................................111.8

11、Tell函數(shù).........................................................................................................111.9Close函數(shù).................................................................................................

12、.....111.10Unlink函數(shù)...................................................................................................121.11OpenSocket函數(shù)....................................................................................

13、.......121.12CloseSocket函數(shù)...........................................................................................121.13AssignNameToSocket函數(shù).............................................................................

14、121.14DeAssignNameToSocket函數(shù).........................................................................121.15PoolSocket函數(shù)............................................................................................121.16Rea

15、dFromSocket函數(shù)....................................................................................131.17SendToSocket函數(shù)........................................................................................131.18CallOnUse

16、rAbt函數(shù)...................................................................................131.19Delay函數(shù)....................................................................................................131.20Abt函數(shù).......

17、.............................................................................................131.21Exit函數(shù).......................................................................................................141.22RomIni

18、t函數(shù)............................................................................................141.23Rom函數(shù).................................................................................................141.24AllocBounde

19、dArray函數(shù)................................................................................141.25DeallocBoundedArray函數(shù).............................................................................142.中斷模塊分析（文件interrupt.ccint

20、errupt.h）........................................................142.1PendingInterrupt類...........................................................................................162.2Interrupt類...........................

21、...........................................................................172.2.1內(nèi)部使用方法...........................................................................................172.2.2內(nèi)部使用函數(shù)............................

22、...............................................................182.2.3對外接口..................................................................................................183.時(shí)鐘中斷模塊分析（文件timer.cctimer.h）.................

23、.........................................20目錄iiiiii4.文件屬性..........................................................................................................525.文件操作.................................................

24、.........................................................52二、目錄..................................................................................................................531.目錄結(jié)構(gòu)...................................

25、.......................................................................532.多級目錄結(jié)構(gòu)...................................................................................................543.文件路徑名...............................

26、.......................................................................544.工作目錄..........................................................................................................545.目錄結(jié)構(gòu)的勾連........................

27、.......................................................................546.目錄項(xiàng).............................................................................................................55三、UNIX文件系統(tǒng)的實(shí)現(xiàn)..................

28、....................................................................551.UNIX文件系統(tǒng)中的主要結(jié)構(gòu)............................................................................552.UNIX文件系統(tǒng)存儲(chǔ)資源的分配和回收....................................

29、..........................57第二節(jié)NACHOS文件管理系統(tǒng)....................................................................................60第三節(jié)NACHOS文件系統(tǒng)的實(shí)現(xiàn)...........................................................................

30、.....621.同步磁盤分析（文件synchdisk.cc、synchdisk.h）...............................................622.位圖模塊分析（文件bitmap.cc、bitmap.h）..........................................................633.文件系統(tǒng)模塊分析（文件filesys.cc、filesys.h）....

31、................................................633.1生成方法........................................................................................................643.2Create方法..............................................

32、........................................................643.3Open方法.......................................................................................................653.4Remove方法.....................................

33、..............................................................654.文件頭模塊分析（文件filehdr.cc、filehdr.h）.......................................................655.打開文件結(jié)構(gòu)分析（文件openfile.cc、openfile.h）..............................

34、.................665.1ReadAt方法....................................................................................................665.2WriteAt方法............................................................................

35、........................666.目錄模塊分析（文件directy.ccdirecty.h）.......................................................67第四節(jié)文件管理系統(tǒng)作業(yè)..........................................................................................69第五章

36、用戶程序和虛擬內(nèi)存...........................................................................................70第一節(jié)NACHOS對內(nèi)存、寄存器以及CPU的模擬...........................................................701RaiseException方法................

37、...........................................................................732ReadMem方法..................................................................................................733WriteMem方法......................

38、............................................................................734Translate方法.....................................................................................................735Run方法.....................

39、......................................................................................74第二節(jié)NACHOS用戶進(jìn)程運(yùn)行機(jī)制................................................................................75一、用戶程序空間（文件address.ccaddress.h）..

40、.....................................................751.1生成方法........................................................................................................751.2InitRegisters方法..................................

41、...........................................................761.3SaveState方法.................................................................................................761.4ResteState方法...............................

42、..............................................................76二、系統(tǒng)調(diào)用（文件exception.ccsyscall.hstart.s）..................................................76第三節(jié)虛存管理的設(shè)計(jì)和實(shí)現(xiàn).....................................................

43、..............................78一、Nachos存儲(chǔ)管理的改進(jìn)要求..............................................................................78二、一個(gè)虛擬存儲(chǔ)管理實(shí)現(xiàn)的實(shí)例...........................................................................7