tan.asm

汇编有关十六进制的显示到屏幕上 针对的是一个字节的转换

data segment
     X db 10011010b
data ends
code segment
     assume   ds:data,cs:code
start: mov ax,data
       mov ds,ax
       mov dl,x
       mov cl,4
       shr dl,cl
       call disp
       mov dl,x
       and dl,0fh
       call disp
       mov ah,4ch
       int 21h
disp   proc near
       push dx
       push ax
       add dl,30h
       cmp dl,'9'
       jbe next
       add dl,7
next:  mov ah,2
       int 21h
       pop ax
       pop dx
       ret
disp   endp
code   ends
       end start