xref: /csrg-svn/lib/libc/quad/cmpdi2.c (revision 53459)
153434Sbostic /*-
253434Sbostic  * Copyright (c) 1992 The Regents of the University of California.
353434Sbostic  * All rights reserved.
453434Sbostic  *
553434Sbostic  * %sccs.include.redist.c%
653434Sbostic  */
753434Sbostic 
853434Sbostic #if defined(LIBC_SCCS) && !defined(lint)
9*53459Sbostic static char sccsid[] = "@(#)cmpdi2.c	5.3 (Berkeley) 05/12/92";
1053434Sbostic #endif /* LIBC_SCCS and not lint */
1153434Sbostic 
12*53459Sbostic /* Copyright (C) 1989, 1992 Free Software Foundation, Inc.
13*53459Sbostic 
14*53459Sbostic This file is part of GNU CC.
15*53459Sbostic 
16*53459Sbostic GNU CC is free software; you can redistribute it and/or modify
17*53459Sbostic it under the terms of the GNU General Public License as published by
18*53459Sbostic the Free Software Foundation; either version 2, or (at your option)
19*53459Sbostic any later version.
20*53459Sbostic 
21*53459Sbostic GNU CC is distributed in the hope that it will be useful,
22*53459Sbostic but WITHOUT ANY WARRANTY; without even the implied warranty of
23*53459Sbostic MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
24*53459Sbostic GNU General Public License for more details.
25*53459Sbostic 
26*53459Sbostic You should have received a copy of the GNU General Public License
27*53459Sbostic along with GNU CC; see the file COPYING.  If not, write to
28*53459Sbostic the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
29*53459Sbostic 
30*53459Sbostic /* As a special exception, if you link this library with files
31*53459Sbostic    compiled with GCC to produce an executable, this does not cause
32*53459Sbostic    the resulting executable to be covered by the GNU General Public License.
33*53459Sbostic    This exception does not however invalidate any other reasons why
34*53459Sbostic    the executable file might be covered by the GNU General Public License.  */
35*53459Sbostic 
3653434Sbostic #include "longlong.h"
3753434Sbostic 
3853457Sbostic long int
3953434Sbostic __cmpdi2 (a, b)
4053434Sbostic      long long a, b;
4153434Sbostic {
4253434Sbostic   long_long au, bu;
4353434Sbostic 
4453434Sbostic   au.ll = a, bu.ll = b;
4553434Sbostic 
4653434Sbostic   if (au.s.high < bu.s.high)
4753434Sbostic     return 0;
4853434Sbostic   else if (au.s.high > bu.s.high)
4953434Sbostic     return 2;
5053434Sbostic   if ((unsigned) au.s.low < (unsigned) bu.s.low)
5153434Sbostic     return 0;
5253434Sbostic   else if ((unsigned) au.s.low > (unsigned) bu.s.low)
5353434Sbostic     return 2;
5453434Sbostic   return 1;
5553434Sbostic }
56