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hppa.h
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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) <[email protected]>
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))