1 files changed, 55 insertions, 0 deletions
diff --git a/lib/libc/alpha/gen/fpsetsticky.c b/lib/libc/alpha/gen/fpsetsticky.c
new file mode 100644
index 0000000..ae0d742
--- /dev/null
+++ b/lib/libc/alpha/gen/fpsetsticky.c
@@ -0,0 +1,55 @@
+/*	$NetBSD: fpsetsticky.c,v 1.1 1995/04/29 05:11:04 cgd Exp $	*/
+
+/*
+ * Copyright (c) 1995 Christopher G. Demetriou
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Christopher G. Demetriou
+ *	for the NetBSD Project.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <ieeefp.h>
+#include <machine/fpu.h>
+
+fp_except
+fpsetsticky(sticky)
+	fp_except sticky;
+{
+	double fpcrval;
+	u_int64_t old,new ;
+
+	GET_FPCR(fpcrval);
+	old = *(u_int64_t *)&fpcrval;
+	new = old & ~ (IEEE_STATUS_MASK << IEEE_STATUS_TO_FPCR_SHIFT);
+	new |= ((sticky << IEEE_STATUS_TO_EXCSUM_SHIFT) & IEEE_STATUS_MASK)
+					<< IEEE_STATUS_TO_FPCR_SHIFT;
+	*(u_int64_t *)&fpcrval = new;
+	SET_FPCR(fpcrval);
+
+	return (((old >> IEEE_STATUS_TO_FPCR_SHIFT) & IEEE_STATUS_MASK)
+					>> IEEE_STATUS_TO_EXCSUM_SHIFT);
+}