stc89c51 sort of led flashing

test-hex\BINCTR-16k.bin
........\BINCTR-32k.bin
........\BINCTR-62k.bin
........\BINCTR-64k.bin
........\BINCTR-8k.bin
........\BINCTR.HEX
........\nul-ffh.bin
........\PENDB-16k.bin
........\PENDB-32k.bin
........\PENDB-62k.bin
........\PENDB-64k.bin
........\PENDB-8k.bin
........\PENDB.HEX
........\STC2000.rom
........\STC516_2003.rom
........\STC58_2003.rom
........\test_p0_p1_p2_p3.hex
........\test_p0_p1_p2_p3.rar
........\TWOBALL-16k.bin
........\twoball-1k.bin
........\twoball-2k.bin
........\TWOBALL-32k.bin
........\twoball-3k.bin
........\twoball-4k.bin
........\twoball-512.bin
........\twoball-5k.bin
........\TWOBALL-62k.bin
........\TWOBALL-64k.bin
........\twoball-6k.bin
........\twoball-7k.bin
........\TWOBALL-8k.bin
........\TWOBALL.HEX
........\zero-00.bin
test-hex

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