比较两个字符串的实现
datarea segment
string1 db 'move the cursor backward.'
string2 db 'move the cursor backward.'
mess1 db 'Match..',13,10,'$'
mess2 db 'No match!..',13,10,'$'
datarea ends
prognam segment
main proc far
assume cs:prognam,ds:datarea,es:datarea
start:
push ds
sub ax,ax
push ax
mov ax,datarea
mov ds,ax
mov es,ax
lea si,string1
lea di,string2
cld
mov cx,25
repz cmpsb
jz match
lea dx,mess2
jmp short disp
match:
lea dx, mess1
disp:
mov ah,09
int 21h
ret
main endp
prognam ends
end start
汇编循环程序的实现
使用15行X16列的表格，输出10H到100H的ASCⅡ码的代码
DATAS SEGMENT
;此处输入数据段代码
DATAS ENDS
STACKS SEGMENT
;此处输入堆栈段代码
STACKS ENDS
CODES SEGMENT
ASSUME CS:CODES,DS:DATAS,SS:STACKS
START:
MOV AX,DATAS
MOV DS,AX
sub dx,dx
mov ah,02h
mov dl,10h
rep11:
cmp dx,0ffh
ja exit
mov cx,16
start_loop:
int 21h
push dx
mov dx,0
int 21h
pop dx
inc dx
loop start_loop
push dx
mov dx,0dh
int 21h
mov dx,0ah
int 21h
pop dx
jmp rep11
exit:
;此处输入代码段代码
MOV AH,4CH
INT 21H
CODES ENDS
END START