汇编语言程序设计上机实验报告汇编程序的基本结构 第2页

习题2.26(1)

.model small
.data
string DB 'chenrui$'
.code
main PROC
    mov ax,@data
    mov ds,ax
    mov dh,[string+5]
    mov dl,string
    mov ah,4ch
    int 21h
main ENDP
END main

习题2.26(7)

.model small
.data
array DB 100 DUP(64h)
.code
main PROC
    mov ax,@data
    mov ds,ax
    mov cx,100
    mov si,0
NEXT:
    dec BYTE PTR [array+si]
    inc si
    loop NEXT
    mov ah,4ch
    int 21h
main ENDP
END main

习题2.26(8)

.model small
.data
string DB "sdfhdjkshkjagjkhjrkhwehgjashdfdjlfhhkwhjkeab$"
.code
main PROC
    mov ax,@data
    mov ds,ax
    mov si,OFFSET string
NEXT:
    cmp BYTE PTR [si],'$'
    jz QUIT
    inc si
    jmp NEXT
QUIT:
    inc si
    sub si,OFFSET string   
    mov ah,4ch
    int 21h
main ENDP
END main

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