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* sysdeps/mips/fpu/fesetenv.c (__fesetenv): Flush fpu pipeline

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	* sysdeps/mips/fpu/feholdexcpt.c: New file.

	* sysdeps/mips/fpu/fraiseexcpt.c: New file.
This commit is contained in:
Andreas Jaeger 2000-06-20 13:05:21 +00:00
parent c92d72a8fe
commit d9560fca3d
3 changed files with 90 additions and 0 deletions
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38
sysdeps/mips/fpu/feholdexcpt.c Normal file
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@ -0,0 +1,38 @@
/* Store current floating-point environment and clear exceptions.
Copyright (C) 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Andreas Jaeger <aj@suse.de>, 2000.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <fenv.h>
#include <fpu_control.h>
int
feholdexcept (fenv_t *envp)
{
fpu_control_t cw;
/* Save the current state. */
_FPU_GETCW (cw);
envp->__fp_control_register = cw;
/* Clear all exception enable bits and flags. */
cw &= ~(_FPU_MASK_V|_FPU_MASK_Z|_FPU_MASK_O|_FPU_MASK_U|_FPU_MASK_I|FE_ALL_EXCEPT);
_FPU_SETCW (cw);
return 0;
}

6
sysdeps/mips/fpu/fesetenv.c
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@ -25,6 +25,11 @@
int
__fesetenv (const fenv_t *envp)
{
fpu_control_t cw;
/* Read first current state to flush fpu pipeline. */
_FPU_GETCW (cw);
if (envp == FE_DFL_ENV)
_FPU_SETCW (_FPU_DEFAULT);
else
@ -33,6 +38,7 @@ __fesetenv (const fenv_t *envp)
/* Success. */
return 0;
}
#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
strong_alias (__fesetenv, __old_fesetenv)
compat_symbol (libm, __old_fesetenv, fesetenv, GLIBC_2_1);

46
sysdeps/mips/fpu/fraiseexcpt.c Normal file
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/* Raise given exceptions.
Copyright (C) 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Andreas Jaeger <aj@suse.de>, 2000.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <fenv.h>
#include <fpu_control.h>
#include <shlib-compat.h>
int
__feraiseexcept (int excepts)
{
fpu_control_t cw;
/* Get current state. */
_FPU_GETCW (cw);
/* Set exceptions bits. */
cw |= (excepts & FE_ALL_EXCEPT);
/* Set new state. */
_FPU_SETCW (cw);
return 0;
}
#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
strong_alias (__feraiseexcept, __old_feraiseexcept)
compat_symbol (libm, __old_feraiseexcept, feraiseexcept, GLIBC_2_1);
#endif
versioned_symbol (libm, __feraiseexcept, feraiseexcept, GLIBC_2_2);