1 files changed, 48 insertions, 0 deletions
diff --git a/sysdeps/m68k/fpu/fesetenv.c b/sysdeps/m68k/fpu/fesetenv.c
new file mode 100644
index 0000000000..f6611a20e0
--- /dev/null
+++ b/sysdeps/m68k/fpu/fesetenv.c
@@ -0,0 +1,48 @@
+/* Install given floating-point environment.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   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>
+
+void
+fesetenv (const fenv_t *envp)
+{
+  fenv_t temp;
+
+  /* Install the environment specified by ENVP.  But there are a few
+     values which we do not want to come from the saved environment.
+     Therefore, we get the current environment and replace the values
+     we want to use from the environment specified by the parameter.  */
+  __asm__ ("fmovem%.l %/fpcr/%/fpsr,%0" : "=m" (*&temp));
+
+  temp.status_register &= ~FE_ALL_EXCEPT;
+  temp.control_register &= ~((FE_ALL_EXCEPT << 5) | FE_UPWARD);
+  if (envp == FE_DFL_ENV)
+    ;
+  else if (envp == FE_NOMASK_ENV)
+    temp.control_register |= FE_ALL_EXCEPT << 5;
+  else
+    {
+      temp.control_register |= (envp->control_register
+				& ((FE_ALL_EXCEPT << 5) | FE_UPWARD));
+      temp.status_register |= envp->status_register & FE_ALL_EXCEPT;
+    }
+
+  __asm__ __volatile__ ("fmovem%.l %0,%/fpcr/%/fpsr" : : "m" (temp));
+}