BOTTON EQU P3.7
ZERO EQU P1.1
A_PHASE EQU P1.2
B_PHASE EQU P1.3
RE_LED EQU P1.4
GE_LED EQU P1.5
FEELER EQU P1.0
ORG 0000H
AJMP MAIN
org 000BH
AJMP TIM0
;**********...