show2.asm

在汇编环境下打印成绩单

assume cs:code,ds:score,es:stack

 score segment
        dw 58,60,79,80,78,45,45,66,23,78,99,69,90,88,66,77,84,94,65,10
        db '                              '
        db 0,0,0,0,0

 score ends

 stack segment
        dw 5 dup (?)
 stack ends

code segment
start:    mov ax,score
          mov ds,ax

          mov ax,stack
          mov es,ax

          mov bx,0                   ;loop bank
          mov ah,0
          mov cx,20

    s0:    mov ax,[bx]               ;judge kind
           cmp ax,90
           jl better
           inc ah
           mov es:[0],ah
           jmp exit

    better:cmp ax,70
           jl good
           inc  ah
           mov  es:[2],ah
           jmp exit

    good:  cmp ax,80
           jl jige
           inc  ah
           mov  es:[4],ah
           jmp exit


   jige:   cmp ax,60
           inc  ah
           mov  es:[6],ah
           jmp exit

  exit:    add bx,2
           loop s0
                

           mov cx,4             ;result
           mov dh,41h
	   mov si,0
    	   mov di,0
    	   
    	    mov bh,0
 letter:   push cx

           mov cx,30
           mov bx,0
     bank: mov dl,ds:40[bx]
           mov ah,2
           int 21h
           inc bx
           loop bank

           mov dl,3                 ;heart
           mov ah,2
           int 21h
           mov dl,ds:[40h]
           mov ah,2
           int 21h
           mov dl,dh             ;letter
           mov ah,2
           int 21h
           mov dl,'='             ;deng hao
           mov ah,2
           int 21h
           inc dh                ;loop letter

	mov bx,es:[di]
	mov cx,4
neirong:	push cx	
	mov cl,4
	rol bl,cl
	mov al,bl
	and al,0fh
	cmp al,10
	jl  math
	add al,37h
	jmp disp

  math: add al,30h
  disp: mov dl,al
	mov ah,2
	int 21h
	pop cx
	inc di                            ;end result
	loop neirong
       
 
  
           mov dl,13           ;huan hang
           mov ah,2
           int 21h
           mov dl,10
           mov ah,2
           int 21h

           pop cx
           loop letter

           mov ax,4c00h
           int 21h

     code ends
     end start