glibc/sysdeps/i860/memcopy.h
2001-07-06 04:56:23 +00:00

34 lines
1.3 KiB
C

/* Copyright (C) 1991, 1997 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 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 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