p132_1.asm

王爽汇编语言的课件

assume cs:codesg,ds:datasg
datasg segment
db 'BaSiC'
db 'MinIX'
datasg ends

codesg segment
start: 
	mov ax,datasg
	mov ds,ax
	mov bx,0

	mov cx,5
     s:	mov al,[bx]		;定位第一个字符串的字符
	and al,11011111b
	mov [bx],al
	mov al,[5+bx]		;定位第二个字符串的字符
	or al,00100000b
	mov [5+bx],al
	inc bx
	loop s

	mov ax,4c00h
	int 21h
codesg ends
end start