Cedric Roux
56c66c09aa
Pre-ci test passed git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4000 818b1a75-f10b-46b9-bf7c-635c3b92a50f
157 lines
2.8 KiB
C
157 lines
2.8 KiB
C
#include "defs.h"
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#ifndef EXPRESSMIMO_TARGET
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static __m128i alpha_128 __attribute__ ((aligned(16)));
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static __m128i shift __attribute__ ((aligned(16)));
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int add_cpx_vector(short *x,
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short *alpha,
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short *y,
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unsigned int N)
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{
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unsigned int i; // loop counter
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__m128i *x_128;
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__m128i *y_128;
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x_128 = (__m128i *)&x[0];
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y_128 = (__m128i *)&y[0];
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alpha_128 = _mm_set1_epi32(*((int*)alpha));
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// we compute 4 cpx multiply for each loop
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for(i=0;i<(N>>3);i++)
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{
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y_128[0] = _mm_adds_epi16(alpha_128, x_128[0]);
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y_128[1] = _mm_adds_epi16(alpha_128, x_128[1]);
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y_128[2] = _mm_adds_epi16(alpha_128, x_128[2]);
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y_128[3] = _mm_adds_epi16(alpha_128, x_128[3]);
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x_128+=4;
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y_128 +=4;
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}
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return (0);
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}
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int add_vector32_scalar(short *x,
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int alpha,
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short *y,
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unsigned int N)
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{
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unsigned int i; // loop counter
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__m128i *x_128;
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__m128i *y_128;
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x_128 = (__m128i *)&x[0];
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y_128 = (__m128i *)&y[0];
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alpha_128 = _mm_setr_epi32(alpha,0,alpha,0);
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// we compute 4 cpx multiply for each loop
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for(i=0;i<(N>>3);i++)
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{
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y_128[0] = _mm_add_epi32(alpha_128, x_128[0]);
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y_128[1] = _mm_add_epi32(alpha_128, x_128[1]);
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y_128[2] = _mm_add_epi32(alpha_128, x_128[2]);
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y_128[3] = _mm_add_epi32(alpha_128, x_128[3]);
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x_128+=4;
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y_128 +=4;
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}
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return (0);
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}
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int add_real_vector64_scalar(short *x,
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long long int a,
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short *y,
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unsigned int N)
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{
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unsigned int i; // loop counter
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__m128i *x_128;
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__m128i *y_128;
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x_128 = (__m128i *)&x[0];
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y_128 = (__m128i *)&y[0];
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alpha_128 = _mm_set1_epi64((__m64) a);
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// we compute 4 cpx multiply for each loop
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for(i=0;i<(N>>3);i++)
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{
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y_128[0] = _mm_add_epi64(alpha_128, x_128[0]);
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y_128[1] = _mm_add_epi64(alpha_128, x_128[1]);
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y_128[2] = _mm_add_epi64(alpha_128, x_128[2]);
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y_128[3] = _mm_add_epi64(alpha_128, x_128[3]);
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x_128+=4;
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y_128+=4;
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}
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return(0);
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}
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#ifdef MAIN
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#include <stdio.h>
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main () {
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short input[256] __attribute__((aligned(16)));
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short output[256] __attribute__((aligned(16)));
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int i;
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struct complex16 alpha;
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Zero_Buffer(output,256*2);
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input[0] = 100;
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input[1] = 200;
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input[2] = 100;
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input[3] = 200;
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input[4] = 1234;
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input[5] = -1234;
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input[6] = 1234;
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input[7] = -1234;
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input[8] = 100;
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input[9] = 200;
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input[10] = 100;
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input[11] = 200;
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input[12] = 1000;
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input[13] = 2000;
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input[14] = 1000;
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input[15] = 2000;
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alpha.r = 10;
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alpha.i = -10;
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add_cpx_vector(input,(short*) &alpha,input,8);
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for (i=0;i<16;i+=2)
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printf("output[%d] = %d + %d i\n",i,input[i],input[i+1]);
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}
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#endif //MAIN
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#else //EXPRESSMIMO_TARGET
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int add_cpx_vector(short *x,
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short *alpha,
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short *y,
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unsigned int N)
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{
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}
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#endif //EXPRESSMIMO_TARGET
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