王爽 汇编语言程序设计 实验9 （Assembly Language Study）

自己写的，可以实现练习题的要求，而且个人感觉比网上常见的答案还精炼一些。

 
  assume  
  cs: 
  codesg,  
  ds: 
  data
data segment
    db  
  ' 
  welcome to masm! 
  ' 
  
    db  
  00000010B 
  , 
  00100100B 
  , 
  01110001B 
   
    dw 0b86eh,0b878h,0b882h  
data ends
 
codesg segment
 
  start: 
    
     
  mov 
   cx,  
  3 
      
     
  s1: 
        
         
  mov 
   ax, data  
  ; 
  set data address 
  
 
           
  mov 
   ds, ax         
         
  mov 
   si, cx    
  ; 
  set line in ds 
  
 
           
  mov 
   ah,  
  data: 
  [ 
  15 
  +si]   
  ; 
  get font 00000010B,00100100B,01110001B 
  
 
           
  ADD 
   si,cx     
  ; 
   Set si to be 6,4,2 
  
 
           
  mov 
   ss,  
  data: 
  [ 
  17 
  +si]  
  ; 
  get line position of 0b86eh,0b878h,0b882h         
  push 
   cx
         
  mov 
   cx,  
  16 
  
         
  mov 
   bx,  
  0 
  
         
  mov 
   si,  
  0 
     
         
  s: 
       
             
  mov 
   al,  
  ds: 
  [bx] 
  ; 
  individual char from 'welcome to masm!'  
  
 
               
  mov 
    
  ss: 
  [si+ 
  40 
  ], ax  
  ; 
   this DX should 'line position'     
  
 
               
  inc 
   bx
             
  add 
   si,  
  2 
  
        loop s
         
  pop 
   cx 
    loop  s1
     
  mov 
   ax, 4c00h
     
  int 
   21h
codesg ends
 
 

end start