ORG 0000HLJMP MAINORG 000BHLJMP T0ISRORG 0030HMAIN: MOV TMOD,#01H MOV TH0,#HIGH(65536-10000) MOV TL0,#LOW(65536-10000) SETB ET0 SETB EA MOV R0,#9 MOV R1,#9 MOV R2,#0 MOV R3,#9 CLR 00H CLR 01HLOOP: JB P1.0,LP01 JNB P1.0,$ SETB TR0 CLR 01H SJMP LOOP0LP01: JB P1.1,LP02 JNB P1.1,$ SETB 01H SJMP LOOP0LP02: JB P1.2,LOOP0 JNB P1.1,$ CLR TR0 MOV P3,#0FDH M