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author | nwhitehorn <nwhitehorn@FreeBSD.org> | 2010-07-10 14:45:03 +0000 |
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committer | nwhitehorn <nwhitehorn@FreeBSD.org> | 2010-07-10 14:45:03 +0000 |
commit | a1ab13ffb6886a17aa1e1be328219d1d34b9d68a (patch) | |
tree | 838c4a97263bbcdc2d8e8728ecd744e5a9c73c03 /lib/libc/powerpc64/gen/fpsetmask.c | |
parent | 8c6113bcffdd4be4e178fd6d72c3b9c4fb7d6639 (diff) | |
download | FreeBSD-src-a1ab13ffb6886a17aa1e1be328219d1d34b9d68a.zip FreeBSD-src-a1ab13ffb6886a17aa1e1be328219d1d34b9d68a.tar.gz |
Provide 64-bit PowerPC support in libc.
Obtained from: projects/ppc64
Diffstat (limited to 'lib/libc/powerpc64/gen/fpsetmask.c')
-rw-r--r-- | lib/libc/powerpc64/gen/fpsetmask.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/lib/libc/powerpc64/gen/fpsetmask.c b/lib/libc/powerpc64/gen/fpsetmask.c new file mode 100644 index 0000000..e1433a5 --- /dev/null +++ b/lib/libc/powerpc64/gen/fpsetmask.c @@ -0,0 +1,59 @@ +/* $NetBSD: fpsetmask.c,v 1.3 2002/01/13 21:45:48 thorpej Exp $ */ + +/* + * Copyright (c) 1999 The NetBSD Foundation, Inc. + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 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/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/types.h> +#include <ieeefp.h> + +#ifndef _SOFT_FLOAT +fp_except_t +fpsetmask(fp_except_t mask) +{ + u_int64_t fpscr; + fp_rnd_t old; + + __asm__("mffs %0" : "=f"(fpscr)); + old = (fp_rnd_t)((fpscr >> 3) & 0x1f); + fpscr = (fpscr & 0xffffff07) | (mask << 3); + __asm__ __volatile("mtfsf 0xff,%0" :: "f"(fpscr)); + return (old); +} +#endif |