port1 (2).asm

来自「本人搜索的一些例子」· 汇编 代码 · 共 14 行

KEYLEFT   	BIT   P1.0                    
KEYRIGHT  	BIT   P1.1
LEDLEFT   	BIT   P1.2
LEDRIGHT  	BIT   P1.3	   	;位定义
       	ORG    00H
       	SETB   KEYLEFT		                
       	SETB   KEYRIGHT		;欲读数,先写1
LOOP:  	MOV    C,KEYLEFT
       	MOV    LEDLEFT,C
       	MOV    C,KEYRIGHT
       	MOV    LEDRIGHT,C
       	LJMP   LOOP
       	END