标签:segment color blog jmp rpo tar inner push pre
assume cs:code,ds:data data segment db "Beginner‘s All-purpose Symbolic Instruction Code.",0 data ends code segment start: mov ax,data mov ds,ax mov si,0 call letterc mov ax,4c00h int 21h letterc: push cx push si s1: mov cl,[si] mov ch,0 jcxz ok cmp cl,97 jnb s2 jmp short s3 s2: cmp cl,122 ja s3 and cl,11011111b mov [si],cl s3: inc si jmp short s1 ok: pop si pop cx ret code ends end start
标签:segment color blog jmp rpo tar inner push pre
原文地址:http://www.cnblogs.com/Since-natural-ran/p/7058934.html