16位汇编使用word ptr和byte ptr的寻址方式

使用word ptr和byte ptr的寻址方式, 修改data段的数值

assume cs:code, ds:data  
  
data segment  
    db 60h dup(0)  
    db 'DEC'  
    db 'Ken Oslen'  
    dw 137h  
    dw 40h  
    db 'PDP'  
data ends  
  
code segment  
      
start:  
    mov ax,data  
    mov ds,ax  
    mov bx,60h  
    mov word ptr [bx+0ch],38h  
    mov word ptr [bx+0eh],70h  
      
    mov si,0  
    mov byte ptr [bx+10h],'V'  
    mov byte ptr [bx+11h],'A'  
    mov byte ptr [bx+12h],'X'  
      
    mov ax,4c00h  
    int 21h  
  
code ends  
  
end start  
  
end

assume cs:code, ds:data

data segment

db 60h dup(0)

db 'DEC'

db 'Ken Oslen'

dw 137h

dw 40h

db 'PDP'

data ends

code segment

start:

mov ax,data

mov ds,ax

mov bx,60h

mov word ptr [bx+0ch],38h

mov word ptr [bx+0eh],70h

mov si,0

mov byte ptr [bx+10h],'V'

mov byte ptr [bx+11h],'A'

mov byte ptr [bx+12h],'X'

mov ax,4c00h

int 21h

code ends

end start

end

执行之后的效果

转载请注明：exchen's blog » 16位汇编使用word ptr和byte ptr的寻址方式

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