Cedric Roux
56c66c09aa
Pre-ci test passed git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4000 818b1a75-f10b-46b9-bf7c-635c3b92a50f
53 lines
944 B
C
Executable File
53 lines
944 B
C
Executable File
#ifndef EXPRESSMIMO_TARGET
|
|
#include <mmintrin.h>
|
|
|
|
void Zero_Buffer(void *buf,unsigned int length)
|
|
{
|
|
// zeroes the mmx_t buffer 'buf' starting from buf[0] to buf[length-1] in bytes
|
|
int i;
|
|
register __m64 mm0;
|
|
__m64 *mbuf = (__m64 *)buf;
|
|
|
|
// length>>=3; // put length in quadwords
|
|
mm0 = _m_pxor(mm0,mm0); // clear the register
|
|
|
|
for(i=0;i<length>>3;i++) // for each i
|
|
mbuf[i] = mm0; // put 0 in buf[i]
|
|
|
|
_mm_empty();
|
|
}
|
|
|
|
void mmxcopy(void *dest,void *src,int size)
|
|
{
|
|
|
|
// copy size bytes from src to dest
|
|
register int i;
|
|
register __m64 mm0;
|
|
__m64 *mmsrc = (__m64 *)src, *mmdest= (__m64 *)dest;
|
|
|
|
|
|
|
|
for (i=0;i<size>>3;i++)
|
|
{
|
|
mm0 = mmsrc[i];
|
|
mmdest[i] = mm0;
|
|
}
|
|
_mm_empty();
|
|
}
|
|
|
|
#else //EXPRESSMIMO_TARGET
|
|
|
|
|
|
|
|
#endif //EXPRESSMIMO_TARGET
|
|
|
|
void Zero_Buffer_nommx(void *buf,unsigned int length) {
|
|
|
|
int i;
|
|
|
|
for (i=0;i<length>>2;i++)
|
|
((int *)buf)[i] = 0;
|
|
|
|
}
|
|
|