Mem



ʾйطڴ򡢿ڴ͵ǰ MS-DOS ϵͳмؽڴĳϢ벻 mem ʾ MS-DOS ϵͳʹúͿڴ״̬


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mem [{/program | /debug | /classify}]






	/program

	ʾؽڴĳ״̬

	/debug

	ʾǰسڲ״̬ԼϢ

	/classify

	ʾصڴ͸߶ڴ (UMA) ĳ״̬

/?ʾʾ



ע


XOX
	 XOX
	
 ʹ /program
	
ʹô /debug  classify  /programԽ /program дΪ /p
    
 ʹ /debug
	
ʹô /program  /classify  /debugԽ /debug дΪ /d
    
 ʹ /classify

/classify ʮƺʮƱгÿĴСṩڴʹժҪг˿õڴ顣ʹô /program  /debug  /classifyԽ /classify дΪ /c
	
	 ʾڴ״̬
	
ֻҪڴ泬 1 MBMS-DOS ϵͳͻʾչڴ״̬
	








 ٶ MS-DOS ϵͳչڴ档Ҫʾϵͳڴ棨ڴ桢չڴڴ棩״̬Լǰصڴĳб룺 

 mem /program 

 ƣ 

 
Address       name         size       type

000000                   000400     Interrupt Vector
000400                   000100     ROM Communication Area
000500                   000200     DOS Communication Area

 000700      IO           000310     System Data

 000A10      MSDOS        0014D0     Syetem Data

 001EE0      IO           0018D0     System Data
KBD        000800      System Program
HIMEM      000420      DEVICE=
000340      FILES=
000090      FCBS=
000170      LASTDRIVE=
000710      STACKS=
0037C0      COMMAND      000A40     Program
004210      MSDOS        000070     - Free -
004290      COMMAND      0001F0     Environment
004490      MEM          0001D0     Environment
004670      MEM          017550     Program
01BBD0      MSDOS        084410     - Free -
09FFF0      SYSTEM       028000     System Program

 0C8000      IO           0083D0     System Data
MOUSE      0083C0      System Program
0D03E0      MSDOS        000050     - Free -
0D0440      REDIR        0009F0     Program
0D0E40      DOSX         007CA0     Program
0D8AF0      DOSX         001030     Data
0D9B30      MSDOS        0164C0     - Free -

 
655360 bytes total conventional memory
655360 bytes available to MS-DOS
637296 largest executable program size

 1048576 bytes total contiguous extended memory
0 bytes available contiguous extended memory
405504 bytes available XMS memory
MS-DOS resident in High Memory Area


 Total conventional memory ָ MS-DOS ϵͳɴһ 640KB ڴС
 Available MS-DOS ָĳڴС Cmd.exe Ҫڴ档
 Largest executable program size ǳõĳڴ顣
 Total EMS memory δʾָΪ MS-DOS ϵͳõչڴС
 Free EMS memory(淶ûʾ)ָõչڴ
 Total contiguous extended ָ 1 MB ϵڴ
 Available contiguous extended memory ָж 15h ӿڵչڴ档ڴ治չڴ Himem.sysĳЩĳʹֲͬչڴ淽 Available XMS memory ָչڴ Himem.sysҳʹõڴ档


XOX



 
