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#ifndef GUARD_MATH_UTIL_H
#define GUARD_MATH_UTIL_H
// Fixed-point arithmetic library.
// Proposed TODO: Move the macros here from global.h
typedef s16 fx16; // Fixed-point Q8.8
typedef s16 fxn16; // Fixed-point with arbitrary precision (QN.S)
typedef s32 fx32; // Fixed-point Q24.8
// x * y
fx16 mulfx16(fx16 x, fx16 y);
fxn16 mulfxn16(u8 s, fxn16 x, fxn16 y);
fx32 mulfx32(fx32 x, fx32 y);
// x / y
fx16 divfx16(fx16 x, fx16 y);
fxn16 divfxn16(u8 s, fxn16 x, fxn16 y);
fx32 divfx32(fx32 x, fx32 y);
// 1.0 / y
fx16 invfx16(fx16 y);
fxn16 invfxn16(u8 s, fxn16 y);
fx32 invfx32(fx32 y);
#endif //GUARD_MATH_UTIL_H
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