half_duplex_blend_sqrt_q15()

uint8_t anonymous_namespace{wave_simulation.cpp}::half_duplex_blend_sqrt_q15

(

uint16_t

x

)

Definition at line 11 of file wave_simulation.cpp.

                                               {
    x = MIN(x, 32767);  // Q15
    const int   Q = 15;
    uint32_t    X = (uint32_t)x << Q;   // promote to Q30
    uint32_t    y = (1u << Q);          // start at “1.0” in Q15
 
    // 3–4 iterations is plenty for 15‑bit precision:
    for (int i = 0; i < 4; i++) {
        y = ( y + (X / y) ) >> 1;
    }
    return static_cast<int16_t>(y) >> 8;
}

References MIN, x, and y.