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authorDale Rahn <drahn@cvs.openbsd.org>2002-05-08 20:36:17 +0000
committerDale Rahn <drahn@cvs.openbsd.org>2002-05-08 20:36:17 +0000
commitb7c6bea9cb1bb821b08a2edb260b22e8c030779b (patch)
tree499325dc2ae903fadac4c8b63b82dadf9a087b27 /lib/libc/arch
parent3a2b1c8e7a2926d2bb753c93b2ab615d54fb5eb8 (diff)
Sync with netbsd version, adds SOFTFLOAT (not supported) and copyright.
Diffstat (limited to 'lib/libc/arch')
-rw-r--r--lib/libc/arch/powerpc/gen/flt_rounds.c41
1 files changed, 39 insertions, 2 deletions
diff --git a/lib/libc/arch/powerpc/gen/flt_rounds.c b/lib/libc/arch/powerpc/gen/flt_rounds.c
index 759516534db..1d1b0a1153e 100644
--- a/lib/libc/arch/powerpc/gen/flt_rounds.c
+++ b/lib/libc/arch/powerpc/gen/flt_rounds.c
@@ -1,8 +1,41 @@
-/* $OpenBSD: flt_rounds.c,v 1.2 1997/08/01 21:36:32 deraadt Exp $ */
+/* $OpenBSD: flt_rounds.c,v 1.3 2002/05/08 20:36:16 drahn Exp $ */
+/* $NetBSD: flt_rounds.c,v 1.5 2001/05/25 12:14:05 simonb Exp $ */
+
+/*
+ * Copyright (c) 1996 Mark Brinicombe
+ * 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 Mark Brinicombe
+ * 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 <machine/float.h>
+
static const int map[] = {
1, /* round to nearest */
0, /* round to zero */
@@ -13,9 +46,13 @@ static const int map[] = {
int
__flt_rounds()
{
+#ifdef _SOFT_FLOAT
+ return map[fpgetround()];
+#else
double tmp;
int x;
- asm("mffs %0; stfiwx %0,0,%1" : "=f"(tmp): "b"(&x));
+ __asm__ __volatile("mffs %0; stfiwx %0,0,%1" : "=f"(tmp): "b"(&x));
return map[x & 0x03];
+#endif
}