projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 4a551709 WD |
1 | /* |
| 2 | * This file is part of GNU CC. | |
| 3 | * | |
| 4 | * GNU CC is free software; you can redistribute it and/or modify | |
| 5 | * it under the terms of the GNU General Public License as published | |
| 6 | * by the Free Software Foundation; either version 2, or (at your | |
| 7 | * option) any later version. | |
| 8 | * | |
| 9 | * GNU CC is distributed in the hope that it will be useful, | |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 | * GNU General Public License for more details. | |
| 13 | * | |
| 14 | * You should have received a copy of the GNU General Public | |
| 15 | * License along with GNU CC; see the file COPYING. If not, write | |
| 16 | * to the Free Software Foundation, 59 Temple Place - Suite 330, | |
| 17 | * Boston, MA 02111-1307, USA. | |
| 18 | */ | |
| 19 | ||
| 20 | ||
| 21 | #include <common.h> | |
| 22 | ||
| 6d0f6bcf | 23 | #if !defined(CONFIG_SYS_NIOS_MULT_HW) && !defined(CONFIG_SYS_NIOS_MULT_MSTEP) |
| 4a551709 WD |
24 | |
| 25 | #include "math.h" | |
| 26 | ||
| 27 | USItype __mulsi3 (USItype a, USItype b) | |
| 28 | { | |
| 29 | USItype c = 0; | |
| 30 | ||
| 31 | while (a != 0) { | |
| 32 | if (a & 1) | |
| 33 | c += b; | |
| 34 | a >>= 1; | |
| 35 | b <<= 1; | |
| 36 | } | |
| 37 | ||
| 38 | return c; | |
| 39 | } | |
| 40 | ||
| 41 | ||
| 42 | UHItype __mulhi3 (UHItype a, UHItype b) | |
| 43 | { | |
| 44 | UHItype c = 0; | |
| 45 | ||
| 46 | while (a != 0) { | |
| 47 | if (a & 1) | |
| 48 | c += b; | |
| 49 | a >>= 1; | |
| 50 | b <<= 1; | |
| 51 | } | |
| 52 | ||
| 53 | return c; | |
| 54 | } | |
| 55 | ||
| 6d0f6bcf | 56 | #endif /*!defined(CONFIG_SYS_NIOS_MULT_HW) && !defined(CONFIG_SYS_NIOS_MULT_MSTEP) */ |