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bl_mcu_sdk/examples/dsp/FastMathFunctions_squareRootPart/sqrt.c

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#include "ref.h"
riscv_status ref_sqrt_q31(q31_t in, q31_t *pOut)
{
*pOut = (q31_t)(sqrtf((float32_t)in / 2147483648.0f) * 2147483648.0f);
return RISCV_MATH_SUCCESS;
}
riscv_status ref_sqrt_q15(q15_t in, q15_t *pOut)
{
*pOut = (q15_t)(sqrtf((float32_t)in / 32768.0f) * 32768.0f);
return RISCV_MATH_SUCCESS;
}