/
/ VERSION 5A 4-27-77  PT
/
	SECT	DABS
	BASE	0
	DPCHK
DPABS,	FLDA	0		/GET RETURN ADDRESS
	STARTD
	FSTA	RETRN
	FADD	TWO		/GET ADDRESS OF ARG P7S
	FSTA	3
	FLDA%	3
	FSTA	3
	STARTE
	FLDA%	3
	JGE	RETRN		/POSITIVE, SKIP NEGATE
	FNEG
RETRN,	0;0
TWO,	0;2
	END