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DuerOS-Light-SDK-v1.1.0/duer-os-light/external/speex/libspeex/misc_bfin.h@47:9e361da97763, 2017-07-18 (annotated)

Committer:
TMBOY
Date:
Tue Jul 18 16:54:45 2017 +0800
Revision:
47:9e361da97763
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Who changed what in which revision?

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TMBOY 47:9e361da97763 1 /* Copyright (C) 2005 Analog Devices */
TMBOY 47:9e361da97763 2 /**
TMBOY 47:9e361da97763 3 @file misc_bfin.h
TMBOY 47:9e361da97763 4 @author Jean-Marc Valin
TMBOY 47:9e361da97763 5 @brief Various compatibility routines for Speex (Blackfin version)
TMBOY 47:9e361da97763 6 */
TMBOY 47:9e361da97763 7 /*
TMBOY 47:9e361da97763 8 Redistribution and use in source and binary forms, with or without
TMBOY 47:9e361da97763 9 modification, are permitted provided that the following conditions
TMBOY 47:9e361da97763 10 are met:
TMBOY 47:9e361da97763 11
TMBOY 47:9e361da97763 12 - Redistributions of source code must retain the above copyright
TMBOY 47:9e361da97763 13 notice, this list of conditions and the following disclaimer.
TMBOY 47:9e361da97763 14
TMBOY 47:9e361da97763 15 - Redistributions in binary form must reproduce the above copyright
TMBOY 47:9e361da97763 16 notice, this list of conditions and the following disclaimer in the
TMBOY 47:9e361da97763 17 documentation and/or other materials provided with the distribution.
TMBOY 47:9e361da97763 18
TMBOY 47:9e361da97763 19 - Neither the name of the Xiph.org Foundation nor the names of its
TMBOY 47:9e361da97763 20 contributors may be used to endorse or promote products derived from
TMBOY 47:9e361da97763 21 this software without specific prior written permission.
TMBOY 47:9e361da97763 22
TMBOY 47:9e361da97763 23 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
TMBOY 47:9e361da97763 24 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
TMBOY 47:9e361da97763 25 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
TMBOY 47:9e361da97763 26 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
TMBOY 47:9e361da97763 27 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
TMBOY 47:9e361da97763 28 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
TMBOY 47:9e361da97763 29 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
TMBOY 47:9e361da97763 30 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
TMBOY 47:9e361da97763 31 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
TMBOY 47:9e361da97763 32 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
TMBOY 47:9e361da97763 33 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
TMBOY 47:9e361da97763 34 */
TMBOY 47:9e361da97763 35
TMBOY 47:9e361da97763 36 #define OVERRIDE_SPEEX_MOVE
TMBOY 47:9e361da97763 37 void *speex_move (void *dest, void *src, int n)
TMBOY 47:9e361da97763 38 {
TMBOY 47:9e361da97763 39 __asm__ __volatile__
TMBOY 47:9e361da97763 40 (
TMBOY 47:9e361da97763 41 "L0 = 0;\n\t"
TMBOY 47:9e361da97763 42 "I0 = %0;\n\t"
TMBOY 47:9e361da97763 43 "R0 = [I0++];\n\t"
TMBOY 47:9e361da97763 44 "LOOP move%= LC0 = %2;\n\t"
TMBOY 47:9e361da97763 45 "LOOP_BEGIN move%=;\n\t"
TMBOY 47:9e361da97763 46 "[%1++] = R0 || R0 = [I0++];\n\t"
TMBOY 47:9e361da97763 47 "LOOP_END move%=;\n\t"
TMBOY 47:9e361da97763 48 "[%1++] = R0;\n\t"
TMBOY 47:9e361da97763 49 : "=a" (src), "=a" (dest)
TMBOY 47:9e361da97763 50 : "a" ((n>>2)-1), "0" (src), "1" (dest)
TMBOY 47:9e361da97763 51 : "R0", "I0", "L0", "memory"
TMBOY 47:9e361da97763 52 );
TMBOY 47:9e361da97763 53 return dest;
TMBOY 47:9e361da97763 54 }