| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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)) |