diff options
author | marcel <marcel@FreeBSD.org> | 2003-01-11 07:24:54 +0000 |
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committer | marcel <marcel@FreeBSD.org> | 2003-01-11 07:24:54 +0000 |
commit | e2486fdf1adabf06e18a78b19875589848ad3649 (patch) | |
tree | ee592364d66bbe62cd7ce749f2cf8a85512fcc15 /lib/libc | |
parent | 361d92fd5049f1a25147a1e12abd01bb3b7c9b4b (diff) | |
download | FreeBSD-src-e2486fdf1adabf06e18a78b19875589848ad3649.zip FreeBSD-src-e2486fdf1adabf06e18a78b19875589848ad3649.tar.gz |
Implement missing fpgetround() and fpsetround().
Diffstat (limited to 'lib/libc')
-rw-r--r-- | lib/libc/ia64/gen/Makefile.inc | 4 | ||||
-rw-r--r-- | lib/libc/ia64/gen/fpgetround.c | 39 | ||||
-rw-r--r-- | lib/libc/ia64/gen/fpsetround.c | 43 |
3 files changed, 84 insertions, 2 deletions
diff --git a/lib/libc/ia64/gen/Makefile.inc b/lib/libc/ia64/gen/Makefile.inc index 8521a5b..69de4ba 100644 --- a/lib/libc/ia64/gen/Makefile.inc +++ b/lib/libc/ia64/gen/Makefile.inc @@ -2,8 +2,8 @@ SRCS+= __divdf3.S __divdi3.S __divsf3.S __divsi3.S __moddi3.S __modsi3.S \ __udivdi3.S __udivsi3.S __umoddi3.S __umodsi3.S _setjmp.S fabs.S \ - fpgetmask.c fpsetmask.c frexp.c infinity.c isinf.c ldexp.c modf.c \ - setjmp.S sigsetjmp.S + fpgetmask.c fpgetround.c fpsetmask.c fpsetround.c frexp.c infinity.c \ + isinf.c ldexp.c modf.c setjmp.S sigsetjmp.S # The following may go away if function _Unwind_FindTableEntry() # will be part of GCC. diff --git a/lib/libc/ia64/gen/fpgetround.c b/lib/libc/ia64/gen/fpgetround.c new file mode 100644 index 0000000..6f5e8cc --- /dev/null +++ b/lib/libc/ia64/gen/fpgetround.c @@ -0,0 +1,39 @@ +/* + * Copyright (c) 2003 Marcel Moolenaar + * 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. + * + * 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. + * + * $FreeBSD$ + */ + +#include <sys/types.h> +#include <ieeefp.h> + +fp_rnd_t +fpgetround(void) +{ + uint64_t fpsr; + + __asm __volatile("mov %0=ar.fpsr" : "=r"(fpsr)); + return ((fp_rnd_t)((fpsr >> 10) & 3)); +} diff --git a/lib/libc/ia64/gen/fpsetround.c b/lib/libc/ia64/gen/fpsetround.c new file mode 100644 index 0000000..db2eef1 --- /dev/null +++ b/lib/libc/ia64/gen/fpsetround.c @@ -0,0 +1,43 @@ +/* + * Copyright (c) 2003 Marcel Moolenaar + * 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. + * + * 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. + * + * $FreeBSD$ + */ + +#include <sys/types.h> +#include <ieeefp.h> + +fp_rnd_t +fpsetround(fp_rnd_t rnd) +{ + uint64_t fpsr; + fp_rnd_t prev; + + __asm __volatile("mov %0=ar.fpsr" : "=r"(fpsr)); + prev = (fp_rnd_t)((fpsr >> 10) & 3); + fpsr = (fpsr & ~0xC00ULL) | ((unsigned int)rnd << 10); + __asm __volatile("mov ar.fpsr=%0" :: "r"(fpsr)); + return (prev); +} |