[求助]看看这个问题!!
假定数据定义如下:CONAME DB 'SPACE EXPLORERS INC.'
PRLINE DB 20 DUP(' ')
用串指令编写程序段完成以下功能:
从右到左把CONAME 中的字符串传送到PRLINE.
只是想请教怎样完成"从右到左"的功能就好了!
谢谢了!!!!!
2006-11-18 14:21
2006-11-19 11:39
2006-11-20 11:29
2006-11-20 13:06
2006-11-22 10:28
恩,好 .有错误请修改哦!
dseg segment
coname db 'space explorers inc.'
dseg ends
eseg segment
prline db 20 dup(' ')
eseg ends
cseg segment
assume cs:cseg,ds:dseg ,es:eseg
start: mov ax,dseg
mov ds,ax
mov ax,eseg
mov es,ax
lea ax,coname
add ax,20
lea si,ax
lea di,prline
mov cx,20
std
rep movsb
ret
cseg ends
end start
2006-11-24 18:19
2006-11-27 12:34
2006-12-01 16:07