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authorAndreas Jaeger <aj@suse.de>2000-06-20 13:05:21 +0000
committerAndreas Jaeger <aj@suse.de>2000-06-20 13:05:21 +0000
commit763f7e8ba7c381aee73e0536bb1f7732bb644ff1 (patch)
tree5baeac7db647af6425b8a9336e0a7b0a507cfbf9 /sysdeps/mips/fpu
parente5874a42333f64ccbd6fde6f0c1fe4a2a5279a4a (diff)
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* sysdeps/mips/fpu/fesetenv.c (__fesetenv): Flush fpu pipeline
first. * sysdeps/mips/fpu/feholdexcpt.c: New file. * sysdeps/mips/fpu/fraiseexcpt.c: New file.
Diffstat (limited to 'sysdeps/mips/fpu')
-rw-r--r--sysdeps/mips/fpu/feholdexcpt.c38
-rw-r--r--sysdeps/mips/fpu/fesetenv.c6
-rw-r--r--sysdeps/mips/fpu/fraiseexcpt.c46
3 files changed, 90 insertions, 0 deletions
diff --git a/sysdeps/mips/fpu/feholdexcpt.c b/sysdeps/mips/fpu/feholdexcpt.c
new file mode 100644
index 0000000000..ab92a71e0d
--- /dev/null
+++ b/sysdeps/mips/fpu/feholdexcpt.c
@@ -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;
+}
diff --git a/sysdeps/mips/fpu/fesetenv.c b/sysdeps/mips/fpu/fesetenv.c
index 7ae688a6b1..ab90e4d022 100644
--- a/sysdeps/mips/fpu/fesetenv.c
+++ b/sysdeps/mips/fpu/fesetenv.c
@@ -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);
diff --git a/sysdeps/mips/fpu/fraiseexcpt.c b/sysdeps/mips/fpu/fraiseexcpt.c
new file mode 100644
index 0000000000..25c09e3912
--- /dev/null
+++ b/sysdeps/mips/fpu/fraiseexcpt.c
@@ -0,0 +1,46 @@
+/* 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);