2000-06-12 20:50:37 +00:00
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/* FPU control word definitions. SH version.
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2021-01-02 19:32:25 +00:00
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Copyright (C) 1999-2021 Free Software Foundation, Inc.
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2000-06-12 20:50:37 +00:00
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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2001-07-06 04:58:11 +00:00
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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2000-06-12 20:50:37 +00:00
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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2001-07-06 04:58:11 +00:00
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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2000-06-12 20:50:37 +00:00
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2001-07-06 04:58:11 +00:00
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You should have received a copy of the GNU Lesser General Public
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2012-02-09 23:18:22 +00:00
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License along with the GNU C Library; if not, see
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Prefer https to http for gnu.org and fsf.org URLs
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 05:40:42 +00:00
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<https://www.gnu.org/licenses/>. */
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2000-06-12 20:50:37 +00:00
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#ifndef _FPU_CONTROL_H
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#define _FPU_CONTROL_H
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2014-01-23 05:22:58 +00:00
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#if !defined(__SH_FPU_ANY__)
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#define _FPU_RESERVED 0xffffffff
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#define _FPU_DEFAULT 0x00000000
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typedef unsigned int fpu_control_t;
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#define _FPU_GETCW(cw) (cw) = 0
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#define _FPU_SETCW(cw) (void) (cw)
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extern fpu_control_t __fpu_control;
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#else
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2010-10-01 23:40:36 +00:00
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#include <features.h>
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2000-06-12 20:50:37 +00:00
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/* masking of interrupts */
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#define _FPU_MASK_VM 0x0800 /* Invalid operation */
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#define _FPU_MASK_ZM 0x0400 /* Division by zero */
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#define _FPU_MASK_OM 0x0200 /* Overflow */
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#define _FPU_MASK_UM 0x0100 /* Underflow */
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#define _FPU_MASK_IM 0x0080 /* Inexact operation */
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/* rounding control */
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#define _FPU_RC_NEAREST 0x0 /* RECOMMENDED */
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#define _FPU_RC_ZERO 0x1
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#define _FPU_RESERVED 0xffc00000 /* These bits are reserved. */
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/* The fdlibm code requires strict IEEE double precision arithmetic,
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and no interrupts for exceptions, rounding to nearest. */
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#define _FPU_DEFAULT 0x00080000 /* Default value. */
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#define _FPU_IEEE 0x00080f80 /* Default + exceptions enabled. */
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/* Type of the control word. */
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typedef unsigned int fpu_control_t;
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/* Macros for accessing the hardware control word. */
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#define _FPU_GETCW(cw) __asm__ ("sts fpscr,%0" : "=r" (cw))
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#if defined __GNUC__
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2010-10-01 23:40:36 +00:00
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__BEGIN_DECLS
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2009-12-13 17:42:52 +00:00
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/* GCC provides this function. */
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extern void __set_fpscr (unsigned long);
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2000-06-12 20:50:37 +00:00
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#define _FPU_SETCW(cw) __set_fpscr ((cw))
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#else
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#define _FPU_SETCW(cw) __asm__ ("lds %0,fpscr" : : "r" (cw))
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#endif
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/* Default control word set at startup. */
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extern fpu_control_t __fpu_control;
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2010-10-01 23:40:36 +00:00
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__END_DECLS
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2014-01-23 05:22:58 +00:00
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#endif /* __SH_FPU_ANY__ */
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2000-06-12 20:50:37 +00:00
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#endif /* _FPU_CONTROL_H */
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