汇编语言十六进制数怎么转换为asc码

比如将1A5Fh转为ascii码，程序如下：code segment assume cs:code org 100hstart: jmp bbb nopx dw 1A5Fhbuf db 10,13,0,0,0,0,'$'bbb: lea bx,x lea di,buf inc di inc di mov cx,4line1: mov ax,word ptr[bx] r