Linux/HPPA specific fesetexceptflag implementation.

sysdeps/hppa/fpu/fsetexcptflg.c

@@ -0,0 +1,41 @@
+/* Set floating-point environment exception handling.
+   Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by David Huggins-Daines <dhd@debian.org>, 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 <math.h>
+
+int
+fesetexceptflag (const fexcept_t *flagp, int excepts)
+{
+  unsigned int sw[2];
+
+  /* Get the current status word. */
+  __asm__ ("fstd %%fr0,0(%1)" : "=m" (*sw) : "r" (sw));
+
+  /* Install the new exception flags bits.  */
+  sw[0] &= ~(excepts & (FE_ALL_EXCEPT >> 27));
+  sw[0] |= (*flagp & excepts & FE_ALL_EXCEPT) << 27;
+
+  /* Store the new status word.  */
+  __asm__ ("fldd 0(%0),%%fr0" : : "r" (sw));
+
+  /* Success.  */
+  return 0;
+}