prog0-2.asm

来自「本文件包包括8051彻底研究书籍各章的实例源代码」· 汇编 代码 · 共 16 行

        ORG     0000H
START   MOV     R1,#00H
$1      DJNZ    R1,$1
        MOV     SP,#60H
LOOP  	MOV     P1,#00H
        CALL    DELAY
        MOV     P1,#FFH
        CALL    DELAY
        SJMP    LOOP

DELAY   MOV     R0,#00H
$1      MOV     R1,#00H
$2      DJNZ    R1,$2
        DJNZ    R0,$1
        RET