注：原博客账号密码丢失，故将本科期间的笔记搬运至此
DATAS SEGMENT
;此处输入数据段代码
buf db 32h,29h,64h,10h,89h,99h
res dw ?
buf_size db ?
res_size db ?
DATAS ENDS
STACKS SEGMENT
;此处输入堆栈段代码
STACKS ENDS
CODES SEGMENT
ASSUME CS:CODES,DS:DATAS,SS:STACKS
START:
MOV AX,DATAS
MOV DS,AX
;此处输入代码段代码
;宏 显示一个字符
dispchar macro char
mov ah,2
mov dl,char
int 21h
endm
;宏定义完成
;宏 显示字符串
dispmsg macro message
mov ah,9
lea dx,message
int 21h
endm
;宏定义完成
;宏 显示十六进制数的四位
disphex macro hexdata
local disphex1
push ax
push bx
push cx
push dx
mov bx,hexdata
mov cx,0404h
disphex1: rol bx,cl
mov al,bl
and al,0fh
call htoasc
dispchar al
dec ch
jnz disphex1
pop dx
pop cx
pop bx
pop ax
endm
;宏定义完成
mov cx, lengthof buf
lea si,buf
lea di,res
again:
mov al,byte ptr [si]
call bcd
mov word ptr [di],ax
disphex ax
inc si
inc di
inc di
loop again
MOV AH,4CH
INT 21H
;子程序压缩BCD转非压缩BCD
BCD proc
push cx
mov ah,0h
mov cl,4
shl ax,cl
shr al,cl
pop cx
ret
BCD endp
;子程序十六进制转ASCII
HTOASC proc
push bx
mov bx,offset ASCII
and al,0fh
xlat ASCII
pop bx
ret
ASCII db 30h,31h,32h,33h,34h,35h,36h,37h,38h,39h
db 41h,42h,43h,44h,45h,46h
HTOASC endp
CODES ENDS
END START
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作者：D???
来源：CSDN
原文：https://blog.csdn.net/qq_31424383/article/details/53180368
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