6.asm

在显示器上显示九九表 有二进制转换十进制的显示子程序

code segment
main proc far
    assume cs:code
    push ds
    mov ax,0
    push ax
    mov bl,1
lop2:   mov bh,1
lop1: mov al,bh
      mul bl
      aam             
      add bh,30h            
     add bl,30h
      mov cx,ax
      mov dl,bh        
      mov ah,2
      int 21h
      mov dl,'*'      
      mov ah,2
      int 21h
      mov dl,bl          
      mov ah,2
      int 21h
      mov dl,'='       
      mov ah,2
      int 21h
      cmp ch,0        
      je diwei
      add ch,30h              
      mov dl,ch
      mov ah,2
      int 21h
diwei:add cl,30h          
      mov dl,cl
      mov ah,2
      int 21h
      mov dl,' '          
      mov ah,2
      int 21h
      sub bh,30h         
      sub bl,30h
      inc bh           
      cmp bh,bl        
      jna lop1
      mov dl,0ah        
      mov ah,2
      int 21h
      mov dl,0dh
      mov ah,2
      int 21h
      inc bl
      cmp bl,9           
      jna lop2
      mov ah,4ch          
      int 21h
      main endp
      code ends
         end main