ORG 0000H
LJMP MAIN
ORG 000BH
LJMP T0ISR
ORG 0030H
MAIN:
MOV TMOD,#01H
MOV TH0,#HIGH(65536-50000)
MOV TL0,#LOW(65536-50000)
SETB TR0
SETB ET0
SETB EA
MOV A,#0FEH
SETB 00H
LOOP:
JB P1.0,LOOP1
SETB 00H
SJMP LOOP
LOOP1:
JB P1.1,LOOP
CLR 00H
SJMP LOOP
T0ISR:
CLR TR0
MOV TH0,#HIGH(65536-50000)
MOV TL0,#LOW(65536-50000)
SETB TR0
JNB 00H,T01
RL A
MOV P0,A
RETI
T01:
RR A
MOV P0,A
RETI
END
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