汇编语言: 试编制一个程序，把BX寄存器内的二进制数以十六进制数的形式在屏幕上显示出来

data segment
N dw 0111111100001101b
data ends

stack segment stack
dw 20h dup(?)
top label word
stack ends

code segment
assume ds:data,cs:code,ss:stack
p proc far

mov ax,data
mov ds,ax

mov ax,stack
mov ss,ax
lea sp,top

mov bx,n

mov cx,4
l1: push cx
mov cl,4

rol bx,cl
mov dl,bl
and dl,1111b

add dl,30h

cmp dl,39h
jbe input
add dl,7
input:
mov ah,02h
int 21h
pop cx
loop l1

mov ah,4ch
int 21h

p endp
code ends
end p