• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 /*
2  * Linux/PA-RISC Project (http://www.parisc-linux.org/)
3  *
4  * Floating-point emulation code
5  *  Copyright (C) 2001 Hewlett-Packard (Paul Bame) <bame@debian.org>
6  *
7  *    This program is free software; you can redistribute it and/or modify
8  *    it under the terms of the GNU General Public License as published by
9  *    the Free Software Foundation; either version 2, or (at your option)
10  *    any later version.
11  *
12  *    This program is distributed in the hope that it will be useful,
13  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
14  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  *    GNU General Public License for more details.
16  *
17  *    You should have received a copy of the GNU General Public License
18  *    along with this program; if not, write to the Free Software
19  *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
20  */
21 
22 #ifdef __NO_PA_HDRS
23     PA header file -- do not include this header file for non-PA builds.
24 #endif
25 
26 
27 /* amount is assumed to be a constant between 0 and 32 (non-inclusive) */
28 #define Shiftdouble(left,right,amount,dest)			\
29     /* int left, right, amount, dest; */			\
30     dest = ((left) << (32-(amount))) | ((unsigned int)(right) >> (amount))
31 
32 /* amount must be less than 32 */
33 #define Variableshiftdouble(left,right,amount,dest)		\
34     /* unsigned int left, right;  int amount, dest; */		\
35     if (amount == 0) dest = right;				\
36     else dest = ((((unsigned) left)&0x7fffffff) << (32-(amount))) |	\
37           ((unsigned) right >> (amount))
38 
39 /* amount must be between 0 and 32 (non-inclusive) */
40 #define Variable_shift_double(left,right,amount,dest)		\
41     /* unsigned int left, right;  int amount, dest; */		\
42     dest = (left << (32-(amount))) | ((unsigned) right >> (amount))
43