Initial revision

lib/float/sbf8.c

@@ -0,0 +1,27 @@
+/*
+  (c) copyright 1988 by the Vrije Universiteit, Amsterdam, The Netherlands.
+  See the copyright notice in the ACK home directory, in the file "Copyright".
+*/
+
+/* $Header$ */
+
+/*
+	SUBTRACT TWO FLOATS - DOUBLE Precision (SBF 8)
+*/
+
+#include	"FP_types.h"
+
+void
+sbf8(s2,s1)
+DOUBLE	s1,s2;
+{
+	EXTEND e1, e2;
+
+	if (s2.d[0] == 0 && s2.d[1] == 0) {
+		return;
+	}
+	extend(&s1.d[0],&e1,sizeof(DOUBLE));
+	extend(&s2.d[0],&e2,sizeof(DOUBLE));
+	sub_ext(&e1,&e2);
+	compact(&e1,&s1.d[0],sizeof(DOUBLE));
+}