diff options
| -rw-r--r-- | sysdeps/sh/sh4/fpu/fedisblxcpt.c | 39 | ||||
| -rw-r--r-- | sysdeps/sh/sh4/fpu/feenablxcpt.c | 38 | ||||
| -rw-r--r-- | sysdeps/sh/sh4/fpu/fegetexcept.c | 35 | ||||
| -rw-r--r-- | sysdeps/sh/sh4/fpu/feupdateenv.c | 39 |
4 files changed, 151 insertions, 0 deletions
diff --git a/sysdeps/sh/sh4/fpu/fedisblxcpt.c b/sysdeps/sh/sh4/fpu/fedisblxcpt.c new file mode 100644 index 0000000000..029fcc386a --- /dev/null +++ b/sysdeps/sh/sh4/fpu/fedisblxcpt.c @@ -0,0 +1,39 @@ +/* Disable floating-point exceptions. + Copyright (C) 2012 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Nobuhiro Iwamatsu <iwamatsu@nigauri.org>, 2012. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <fenv.h> +#include <fpu_control.h> + +int +fedisableexcept (int excepts) +{ + unsigned int temp, old_exc; + + /* Get the current control register contents. */ + _FPU_GETCW (temp); + + old_exc = (temp >> 5) & FE_ALL_EXCEPT; + + excepts &= FE_ALL_EXCEPT; + + temp &= ~(excepts << 5); + _FPU_SETCW (temp); + + return old_exc; +} diff --git a/sysdeps/sh/sh4/fpu/feenablxcpt.c b/sysdeps/sh/sh4/fpu/feenablxcpt.c new file mode 100644 index 0000000000..93fa7498e5 --- /dev/null +++ b/sysdeps/sh/sh4/fpu/feenablxcpt.c @@ -0,0 +1,38 @@ +/* Enable floating-point exceptions. + Copyright (C) 2012 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Nobuhiro Iwamatsu <iwamatsu@nigauri.org>, 2012. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <fenv.h> +#include <fpu_control.h> + +int +feenableexcept (int excepts) +{ + unsigned int temp, old_flag; + + /* Get current exceptions. */ + _FPU_GETCW (temp); + + old_flag = (temp >> 5) & FE_ALL_EXCEPT; + excepts &= FE_ALL_EXCEPT; + + temp |= excepts << 5; + _FPU_SETCW (temp); + + return old_flag; +} diff --git a/sysdeps/sh/sh4/fpu/fegetexcept.c b/sysdeps/sh/sh4/fpu/fegetexcept.c new file mode 100644 index 0000000000..a849a17756 --- /dev/null +++ b/sysdeps/sh/sh4/fpu/fegetexcept.c @@ -0,0 +1,35 @@ +/* Get enabled floating-point exceptions. + Copyright (C) 2012 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Nobuhiro Iwamatsu <iwamatsu@nigauri.org>, 2012. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <fenv.h> +#include <fpu_control.h> + +int +fegetexcept (void) +{ + unsigned int temp; + + /* Get current exceptions. */ + _FPU_GETCW (temp); + /* When read fpscr, this was initialized. + We need to rewrite value of temp. */ + _FPU_SETCW (temp); + + return (temp >> 5) & FE_ALL_EXCEPT; +} diff --git a/sysdeps/sh/sh4/fpu/feupdateenv.c b/sysdeps/sh/sh4/fpu/feupdateenv.c new file mode 100644 index 0000000000..96a6979141 --- /dev/null +++ b/sysdeps/sh/sh4/fpu/feupdateenv.c @@ -0,0 +1,39 @@ +/* Install given floating-point environment and raise exceptions. + Copyright (C) 2012 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Nobuhiro Iwamatsu <iwamatsu@nigauri.org>, 2012. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <fenv.h> +#include <fpu_control.h> + +int +feupdateenv (const fenv_t *envp) +{ + unsigned int temp; + + _FPU_GETCW (temp); + temp = (temp & FE_ALL_EXCEPT); + + /* Raise the saved exception. Incidently for us the implementation + defined format of the values in objects of type fexcept_t is the + same as the ones specified using the FE_* constants. */ + fesetenv (envp); + feraiseexcept ((int) temp); + + return 0; +} +libm_hidden_def (feupdateenv) |