Tristan Matthews | 0a329cc | 2013-07-17 13:20:14 -0400 | [diff] [blame] | 1 | /* Copyright (C) 2005 Analog Devices */ |
| 2 | /** |
| 3 | @file misc_bfin.h |
| 4 | @author Jean-Marc Valin |
| 5 | @brief Various compatibility routines for Speex (Blackfin version) |
| 6 | */ |
| 7 | /* |
| 8 | Redistribution and use in source and binary forms, with or without |
| 9 | modification, are permitted provided that the following conditions |
| 10 | are met: |
| 11 | |
| 12 | - Redistributions of source code must retain the above copyright |
| 13 | notice, this list of conditions and the following disclaimer. |
| 14 | |
| 15 | - Redistributions in binary form must reproduce the above copyright |
| 16 | notice, this list of conditions and the following disclaimer in the |
| 17 | documentation and/or other materials provided with the distribution. |
| 18 | |
| 19 | - Neither the name of the Xiph.org Foundation nor the names of its |
| 20 | contributors may be used to endorse or promote products derived from |
| 21 | this software without specific prior written permission. |
| 22 | |
| 23 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 24 | ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 25 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 26 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR |
| 27 | CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 28 | EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 29 | PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 30 | PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| 31 | LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 32 | NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 33 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 34 | */ |
| 35 | |
| 36 | #define OVERRIDE_SPEEX_MOVE |
| 37 | void *speex_move (void *dest, void *src, int n) |
| 38 | { |
| 39 | __asm__ __volatile__ |
| 40 | ( |
| 41 | "L0 = 0;\n\t" |
| 42 | "I0 = %0;\n\t" |
| 43 | "R0 = [I0++];\n\t" |
| 44 | "LOOP move%= LC0 = %2;\n\t" |
| 45 | "LOOP_BEGIN move%=;\n\t" |
| 46 | "[%1++] = R0 || R0 = [I0++];\n\t" |
| 47 | "LOOP_END move%=;\n\t" |
| 48 | "[%1++] = R0;\n\t" |
| 49 | : "=a" (src), "=a" (dest) |
| 50 | : "a" ((n>>2)-1), "0" (src), "1" (dest) |
| 51 | : "R0", "I0", "L0", "memory" |
| 52 | ); |
| 53 | return dest; |
| 54 | } |