A library of C routines to perform fixed-point (Q-format) mathematical operations, suitable for Embedded DSP systems.

Features:

(1) Conversion from floating-point to fixed-point and vice versa (with or without rounding)

(2) Extracting integer-part and fractional-part of Q-number

(3) Add, Subtract, Multiply, Divide (different versions for dealing with rounding and saturation available)

(4) Trig functions: sin, cos, asin, acos, atan, atan2

(5) Sqrt, Abs, Magnitude-phase, Log, Exp