| 1 | /* Copyright (c) 2014, Ian Sutton <ian@kremlin.cc> |
| 2 | * |
| 3 | * Permission to use, copy, modify, and/or distribute this software for |
| 4 | * any purpose with or without fee is hereby granted, provided that the |
| 5 | * above copyright notice and this permission notice appear in all |
| 6 | * copies. |
| 7 | * |
| 8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| 9 | * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| 10 | * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| 11 | * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| 12 | * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| 13 | * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 14 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 15 | * PERFORMANCE OF THIS SOFTWARE. |
| 16 | * |
| 17 | * This code implements a simple matrix operation in C, to be |
| 18 | * cross-compiled volatile into Loongson MIPS 32-bit instructions. |
| 19 | * |
| 20 | * (Header file) |
| 21 | */ |
| 22 | |
| 23 | static void matrix_add(volatile int op1[MS][MS], volatile int op2[MS][MS], volatile int result_buf[MS][MS]); |
| 24 | |
| 25 | static void matrix_sub(volatile int op1[MS][MS], volatile int op2[MS][MS], volatile int result_buf[MS][MS]); |
| 26 | |
| 27 | static void matrix_mult(volatile int op1[MS][MS], volatile int op2[MS][MS], volatile int result_buf[MS][MS]); |
| 28 | |
| 29 | #ifdef DEBUG |
| 30 | static void matrix_print(volatile int matrix[MS][MS]); |
| 31 | #endif |
| 32 | |
| 33 | static void matrix_init0(volatile int matrix[MS][MS]); |