*20
	CLR
	LIF 6
	JMP 20
	NDB=5
	SEG=2
	BN=0
/CLOCK INSTRUCTIONS:
	CLSK=6131
	CLLR=6132
	CLEN=6134
	CLSA=6135
	SEGMNT 6
	FIELD 1
	*20
	JMP .+5
	JMP START
	BN
	SEG
	NDB
	CLR 
	SET I 17
	3777
	LDF 4
	STA I 17
	LDF 5
	STA 17
	XSK 17
	JMP .-5
	SET I 17
	PRGEND-;