half_duplex_blend_sqrt_q15()

fl::u8 anonymous_namespace{wave_simulation.cpp}::half_duplex_blend_sqrt_q15

(

fl::u16

x

)

Definition at line 12 of file wave_simulation.cpp.

                                         {
    x = MIN(x, 32767); // Q15
    const int Q = 15;
    fl::u32 X = (fl::u32)x << Q; // promote to Q30
    fl::u32 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<fl::i16>(y) >> 8;
}

References MIN, x, and y.