1 files changed, 50 insertions, 0 deletions
diff --git a/lib/libc/powerpcspe/gen/fpsetmask.c b/lib/libc/powerpcspe/gen/fpsetmask.c
new file mode 100644
index 000000000000..a7a2569df905
--- /dev/null
+++ b/lib/libc/powerpcspe/gen/fpsetmask.c
@@ -0,0 +1,50 @@
+/*	$NetBSD: fpsetmask.c,v 1.3 2002/01/13 21:45:48 thorpej Exp $	*/
+
+/*
+ * Copyright (c) 2016 Justin Hibbits
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Dan Winship.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``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 FOUNDATION OR CONTRIBUTORS
+ * 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 <machine/spr.h>
+#include <ieeefp.h>
+
+#ifndef _SOFT_FLOAT
+fp_except_t
+fpsetmask(fp_except_t mask)
+{
+	uint32_t fpscr;
+	fp_except_t old;
+
+	__asm__ __volatile("mfspr %0, %1" : "=r"(fpscr) : "K"(SPR_SPEFSCR));
+	old = (fp_except_t)((fpscr >> 2) & 0x1f);
+	fpscr = (fpscr & 0xffffff83) | ((mask & 0x1f) << 2);
+	__asm__ __volatile("mtspr %1,%0;isync" :: "r"(fpscr), "K"(SPR_SPEFSCR));
+	return (old);
+}
+#endif