57 lines
2.2 KiB
C
57 lines
2.2 KiB
C
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/* Copyright (C) 2005 Analog Devices */
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/**
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@file misc_bfin.h
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@author Jean-Marc Valin
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@brief Various compatibility routines for Speex (Blackfin version)
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*/
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/*
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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- Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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- Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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- Neither the name of the Xiph.org Foundation nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "bfin.h"
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#define OVERRIDE_SPEEX_MOVE
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void *speex_move (void *dest, void *src, int n)
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{
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__asm__ __volatile__
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(
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"L0 = 0;\n\t"
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"I0 = %0;\n\t"
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"R0 = [I0++];\n\t"
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"LOOP move%= LC0 = %2;\n\t"
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"LOOP_BEGIN move%=;\n\t"
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"[%1++] = R0 || R0 = [I0++];\n\t"
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"LOOP_END move%=;\n\t"
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"[%1++] = R0;\n\t"
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: "=a" (src), "=a" (dest)
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: "a" ((n>>2)-1), "0" (src), "1" (dest)
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: "R0", "I0", "L0", "memory" BFIN_HWLOOP0_REGS
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);
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return dest;
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}
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