ghaddab
56c3197b09
git-svn-id: http://svn.eurecom.fr/openair4G/trunk@5713 818b1a75-f10b-46b9-bf7c-635c3b92a50f
81 lines
2.2 KiB
C
Executable File
81 lines
2.2 KiB
C
Executable File
/*******************************************************************************
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OpenAirInterface
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Copyright(c) 1999 - 2014 Eurecom
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OpenAirInterface is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenAirInterface is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OpenAirInterface.The full GNU General Public License is
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included in this distribution in the file called "COPYING". If not,
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see <http://www.gnu.org/licenses/>.
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Contact Information
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OpenAirInterface Admin: openair_admin@eurecom.fr
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OpenAirInterface Tech : openair_tech@eurecom.fr
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OpenAirInterface Dev : openair4g-devel@eurecom.fr
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Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
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*******************************************************************************/
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#ifndef EXPRESSMIMO_TARGET
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#include <mmintrin.h>
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void Zero_Buffer(void *buf,unsigned int length)
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{
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// zeroes the mmx_t buffer 'buf' starting from buf[0] to buf[length-1] in bytes
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int i;
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register __m64 mm0;
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__m64 *mbuf = (__m64 *)buf;
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// length>>=3; // put length in quadwords
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mm0 = _m_pxor(mm0,mm0); // clear the register
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for(i=0;i<length>>3;i++) // for each i
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mbuf[i] = mm0; // put 0 in buf[i]
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_mm_empty();
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}
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void mmxcopy(void *dest,void *src,int size)
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{
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// copy size bytes from src to dest
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register int i;
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register __m64 mm0;
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__m64 *mmsrc = (__m64 *)src, *mmdest= (__m64 *)dest;
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for (i=0;i<size>>3;i++)
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{
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mm0 = mmsrc[i];
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mmdest[i] = mm0;
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}
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_mm_empty();
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}
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#else //EXPRESSMIMO_TARGET
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#endif //EXPRESSMIMO_TARGET
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void Zero_Buffer_nommx(void *buf,unsigned int length) {
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int i;
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for (i=0;i<length>>2;i++)
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((int *)buf)[i] = 0;
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}
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