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1da177e4 LT |
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)) |