1 files changed, 54 insertions, 0 deletions
diff --git a/ports/sysdeps/hppa/fpu/feholdexcpt.c b/ports/sysdeps/hppa/fpu/feholdexcpt.c
new file mode 100644
index 0000000000..6e3cabd88a
--- /dev/null
+++ b/ports/sysdeps/hppa/fpu/feholdexcpt.c
@@ -0,0 +1,54 @@
+/* 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 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 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 <string.h>
+
+int
+feholdexcept (fenv_t *envp)
+{
+  union { unsigned long long buf[4]; fenv_t env; } clear;
+  unsigned long long *bufptr;
+
+  /* Store the environment.  */
+  bufptr = clear.buf;
+  __asm__ (
+	   "fstd,ma %%fr0,8(%1)\n"
+	   : "=m" (clear), "+r" (bufptr) : : "%r0");
+  memcpy (envp, &clear.env, sizeof (fenv_t));
+
+  /* Clear exception queues */
+  memset (clear.env.__exception, 0, sizeof (clear.env.__exception));
+  /* And set all exceptions to non-stop.  */
+  clear.env.__status_word &= ~FE_ALL_EXCEPT;
+  /* Now clear all flags  */
+  clear.env.__status_word &= ~(FE_ALL_EXCEPT << 27);
+
+  /* Load the new environment. Note: fr0 must load last to enable T-bit 
+     Thus we start bufptr at the end and work backwards */
+  bufptr = (unsigned int)(clear.buf) + sizeof(unsigned int)*4;
+  __asm__ (
+	   "fldd,mb -8(%0),%%fr0\n"
+	   : : "r" (bufptr), "m" (clear) : "%r0");
+
+  return 0;
+}
+
+libm_hidden_def (feholdexcept)
+