汇编小车程序(AT89S52)

DIRECT EQU 20H.0 IN1 EQU p1.0 IN2 EQU P1.1 IN3 EQU P1.2 IN4 EQU P1.3 LED1 EQU P2.4 LED2 EQU P2.5 LED3 EQU P2.6 LED4 EQU P2.7 LED5 EQU P1.4 V1 EQU P1.5 V2 EQU P1.6 KEY EQU P1.7 buzzer EQU P2.0 ;**********************AT89S52***************** ORG 0000H JB KEY,TIAO