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git.ipfire.org Git - thirdparty/glibc.git/blob - sysdeps/hppa/fpu/fedisblxcpt.c
1 /* Disable floating-point exceptions.
2 Copyright (C) 2000-2021 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library. If not, see
17 <https://www.gnu.org/licenses/>. */
22 fedisableexcept (int excepts
)
24 union { unsigned long long l
; unsigned int sw
[2]; } s
;
27 /* Get the current status word. */
28 __asm__ ("fstd %%fr0,0(%1)" : "=m" (s
.l
) : "r" (&s
.l
) : "%r0");
30 old_exc
= s
.sw
[0] & FE_ALL_EXCEPT
;
32 s
.sw
[0] &= ~(excepts
& FE_ALL_EXCEPT
);
33 __asm__ ("fldd 0(%0),%%fr0" : : "r" (&s
.l
), "m" (s
.l
) : "%r0");