#include "basic_op.h"





#ifndef VC_PROJ

#include <xtensa/tie/xt_hifi2.h>

#include <xtensa/tie/xt_misc.h>

#endif





#ifndef HW_PITCH_OFF2

int speech_pitch_xcorr_c(const short *_x, const short *_y, int *xcorr, short len, short max_pitch);











#ifndef HW_CODESIZE

static void dual_inner_prod(const short *x, const short *y01, const short *y02,

	short N, int *xy1, int *xy2)

{

	short i;

#ifndef HW_HIFI3

	int xy01=0;

	int xy02=0;

	for (i=0;i<N;i++)

	{

		xy01 += SSC_MULT16x16(x[i], y01[i]);

		xy02 += SSC_MULT16x16(x[i], y02[i]);

	}

	*xy1 = xy01;

	*xy2 = xy02;

#else



	ae_int16x4 *x_4 = (ae_int16x4 *)(x);

	ae_int16x4 *y01_4 = (ae_int16x4 *)(y01);

	ae_int16x4 *y02_4 = (ae_int16x4 *)(y02);



	ae_int16x4 x_4_v ;

	ae_int16x4 y01_4_v;

	ae_int16x4 y02_4_v;



	ae_valign align1 = AE_LA64_PP(x_4);

	ae_valign align2 = AE_LA64_PP(y01_4);

	ae_valign align3 = AE_LA64_PP(y02_4);



	ae_int32x4 xy_01_4 = 0;

	ae_int32x4 xy_02_4 = 0;





	for (i=0;i<(N>>2);i++)

	{

		AE_LA16X4_IP(x_4_v,align1,x_4);

		AE_LA16X4_IP(y01_4_v,align2,y01_4);

		AE_MULA16X4_vector(xy_01_4, x_4_v, y01_4_v);

		AE_LA16X4_IP(y02_4_v,align3,y02_4);

		AE_MULA16X4_vector(xy_02_4, x_4_v, y02_4_v);

	}



	*xy1 = AE_INT32X4_RADD(xy_01_4);

	*xy2 = AE_INT32X4_RADD(xy_02_4);





#endif

}

#endif

#endif