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