diff options
Diffstat (limited to 'lib/libc/arch/powerpc/gen/flt_rounds.c')
| -rw-r--r-- | lib/libc/arch/powerpc/gen/flt_rounds.c | 41 |
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 } |