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authorRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
committerRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
commit28f540f45bbacd939bfd07f213bcad2bf730b1bf (patch)
tree15f07c4c43d635959c6afee96bde71fb1b3614ee /sysdeps/i860
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initial import
Diffstat (limited to 'sysdeps/i860')
-rw-r--r--sysdeps/i860/memcopy.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/sysdeps/i860/memcopy.h b/sysdeps/i860/memcopy.h
new file mode 100644
index 0000000000..9f81326c97
--- /dev/null
+++ b/sysdeps/i860/memcopy.h
@@ -0,0 +1,33 @@
+/* Copyright (C) 1991 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+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., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdeps/generic/memcopy.h>
+
+#if 0
+#undef	MERGE
+/* In order to make this work properly, an 's' constraint need to be added
+   to tm-i860.h, to mean the SC register.  */
+#define MERGE(w0, sh_1, w1, sh_2)					      \
+  ({									      \
+    unsigned int __merge;						      \
+    asm("shrd %2,%1,%0" :						      \
+	"=r" (__merge) :						      \
+	"r" (w0), "r" (w1), "s" (sh_1));				      \
+    __merge;								      \
+  })
+#endif