ex_dsqlininterp.c

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#include "examples_doc_sq.h"
#include "dsp.h"

#define VLENGTH 2
#define FRACTIONAL_PART 0x000FFFFF /* Q20 fractional part of 12.20 format */

int main(void)
{
    float32_t x32f = 0.5f;
    q15_t     yData[VLENGTH] = { 10000, 20000 };
    q31_t     x;
    q15_t     y;

    printf_v16s("yData = ", " %d", yData, VLENGTH);
    printf_v32f("float x =", &x32f, 1);

    x = (q31_t)(x32f * FRACTIONAL_PART);
    QM_PRINTF("x in 12.20 format = 0x%x\n", x);

    y = ippsq_linear_interp_q15(yData, x, VLENGTH);

    QM_PRINTF("y = %d\n", y);

    CONTROL_RETURN;
}
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