汇编编写程序完成：用查表的方法将一位十六进制数的ASCII码求出来；

assume cs:code,ds:data data segment BUF db 30h,31h,32h,33h,34h,35h,36h,37h,38h,39h,41h,42h,43h,44h,45h,46h X db 12 ;16进制数 ASC db ? ;ascii码 data ends code segment start: mov ax,data mov ds,ax lea