eg0411a.lst

宏汇编器

Microsoft (R) Macro Assembler Version 6.15.8803		    08/18/07 18:08:26
eg0411a.asm						     Page 1 - 1


				;eg0411a.asm
					include io32.inc
			      C .nolist
			      C .list
			      C 
 00000000				.data
 00000000 EA			key	byte 234
 00000001 C4 E3 C4 DC BF	buffer	byte '你能看见我吗？Can you see me?',0	
	   B4 BC FB CE D2
	   C2 F0 A3 BF 43
	   61 6E 20 79 6F
	   75 20 73 65 65
	   20 6D 65 3F 00
 0000001F 45 6E 63 72 79	msg2	byte 'Encrypted message: ',0
	   70 74 65 64 20
	   6D 65 73 73 61
	   67 65 3A 20 00
 00000033 0D 0A 4F 72 69	msg3	byte 13,10,'Original messge: ',0
	   67 69 6E 61 6C
	   20 6D 65 73 73
	   67 65 3A 20 00
 00000000				.code
 00000000			start:
 00000000  B8 0000001D			mov eax,lengthof buffer-1
 00000005  50				push eax	; 字符个数保存进入堆栈
 00000006  8B C8			mov ecx,eax	; ECX＝实际输入的字符个数，作为循环的次数
 00000008  33 DB			xor ebx,ebx	; EBX指向输入字符
 0000000A  A0 00000000 R	encrypt:	mov al,key	; AL＝加密关键字
 0000000F  30 83 00000001 R		xor buffer[ebx],al	; 异或加密
 00000015  43				inc ebx
 00000016  49				dec ecx	; 等同于指令：loop encrypt
 00000017  75 F1			jnz encrypt	; 处理下一个字符
 00000019  B8 0000001F R		mov eax,offset msg2
 0000001E  E8 00000000 E		call dispmsg
 00000023  B8 00000001 R		mov eax,offset buffer	; 显示加密后的密文
 00000028  E8 00000000 E		call dispmsg
					;
 0000002D  59				pop ecx	; 从堆栈弹出字符个数，作为循环的次数
 0000002E  33 DB			xor ebx,ebx	; EBX指向输入字符
 00000030  A0 00000000 R	decrypt:	mov al,key	; AL＝解密关键字
 00000035  30 83 00000001 R		xor buffer[ebx],al	; 异或解密
 0000003B  43				inc ebx
 0000003C  49				dec ecx
 0000003D  75 F1			jnz decrypt	; 处理下一个字符
 0000003F  B8 00000033 R		mov eax,offset msg3
 00000044  E8 00000000 E		call dispmsg
 00000049  B8 00000001 R		mov eax,offset buffer	; 显示解密后的明文
 0000004E  E8 00000000 E		call dispmsg

					exit 0
					end start
Microsoft (R) Macro Assembler Version 6.15.8803		    08/18/07 18:08:26
eg0411a.asm						     Symbols 2 - 1




Macros:

                N a m e                 Type

exit . . . . . . . . . . . . . .	Proc


Segments and Groups:

                N a m e                 Size     Length   Align   Combine Class

FLAT . . . . . . . . . . . . . .	GROUP
_DATA  . . . . . . . . . . . . .	32 Bit	 00000047 Para	  Public  'DATA'	
_TEXT  . . . . . . . . . . . . .	32 Bit	 0000005A Para	  Public  'CODE'	


Procedures,  parameters and locals:

                N a m e                 Type     Value    Attr

ExitProcess  . . . . . . . . . .	P Near	 00000000 FLAT	Length= 00000000 External STDCALL


Symbols:

                N a m e                 Type     Value    Attr

@CodeSize  . . . . . . . . . . .	Number	 00000000h   
@DataSize  . . . . . . . . . . .	Number	 00000000h   
@Interface . . . . . . . . . . .	Number	 00000003h   
@Model . . . . . . . . . . . . .	Number	 00000007h   
@code  . . . . . . . . . . . . .	Text   	 _TEXT
@data  . . . . . . . . . . . . .	Text   	 FLAT
@fardata?  . . . . . . . . . . .	Text   	 FLAT
@fardata . . . . . . . . . . . .	Text   	 FLAT
@stack . . . . . . . . . . . . .	Text   	 FLAT
buffer . . . . . . . . . . . . .	Byte	 00000001 _DATA	
decrypt  . . . . . . . . . . . .	L Near	 00000030 _TEXT	
dispbb . . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
dispbd . . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
dispbw . . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
dispcrlf . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
dispc  . . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
disphb . . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
disphd . . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
disphw . . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
dispmsg  . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
disprb . . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
disprd . . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
disprf . . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
disprw . . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
dispsib  . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
dispsid  . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
dispsiw  . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
dispuib  . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
dispuid  . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
dispuiw  . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
encrypt  . . . . . . . . . . . .	L Near	 0000000A _TEXT	
key  . . . . . . . . . . . . . .	Byte	 00000000 _DATA	
msg2 . . . . . . . . . . . . . .	Byte	 0000001F _DATA	
msg3 . . . . . . . . . . . . . .	Byte	 00000033 _DATA	
readbb . . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
readbd . . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
readbw . . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
readc  . . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
readhb . . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
readhd . . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
readhw . . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
readmsg  . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
readsib  . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
readsid  . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
readsiw  . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
readuib  . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
readuid  . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
readuiw  . . . . . . . . . . . .	L Near	 00000000 FLAT	External STDCALL
start  . . . . . . . . . . . . .	L Near	 00000000 _TEXT	Public STDCALL

	   0 Warnings
	   0 Errors