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* sysdeps/unix/sysv/linux/Makefile [$(subdir)=math] (sysdep_routines): Append setfpucw. (extra-objs): Append ieee-fpucw.o. (install-lib): Append libieee.a. (libieee.a): New target. * sysdeps/unix/sysv/linux/ieee-fpucw.c: New file. * sysdeps/unix/sysv/linux/i386/fpu_control.h (_FPU_GETCW, _FPU_SETCW): New macros. (fpu_control_t): New typedef. (__setfpucw): Use fpu_control_t for argument type. * sysdeps/unix/sysv/linux/fpu_control.c: Moved from linux/i386. * sysdeps/unix/sysv/linux/init-first.c: Moved from linux/i386. * sysdeps/unix/sysv/linux/Makefile [$(subdir)=math] (sysdep_routines): Append setfpucw. (extra-objs): Append ieee-fpucw.o. (install-lib): Append libieee.a. (libieee.a): New target. * sysdeps/unix/sysv/linux/ieee-fpucw.c: New file. * sysdeps/unix/sysv/linux/i386/fpu_control.h (_FPU_GETCW, _FPU_SETCW): New macros. (fpu_control_t): New typedef. (__setfpucw): Use fpu_control_t for argument type. * sysdeps/unix/sysv/linux/fpu_control.c: Moved from linux/i386. * sysdeps/unix/sysv/linux/init-first.c: Moved from linux/i386.
38 lines
1.3 KiB
C
38 lines
1.3 KiB
C
/* Set the FPU control word.
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Copyright (C) 1996 Free Software Foundation, Inc.
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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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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "fpu_control.h"
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void
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__setfpucw (fpu_control_t set)
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{
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fpu_control_t cw;
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/* Fetch the current control word. */
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_FPU_GETCW (cw);
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/* Preserve the reserved bits, and set the rest as the user
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specified (or the default, if the user gave zero). */
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_FPU_SETCW ((cw & _FPU_RESERVED) | ((set ?: _FPU_DEFAULT) & ~_FPU_RESERVED));
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}
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/* The startup code in init-first.c calls __setfpucw (__fpu_control). */
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fpu_control_t __fpu_control;
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