pokefirered/include/math_util.h
2021-05-26 09:59:32 -04:00

22 lines
409 B
C

#ifndef GUARD_MATH_UTIL_H
#define GUARD_MATH_UTIL_H
// Fixed-point arithmetic library.
// x * y
s16 Q_8_8_mul(s16 x, s16 y);
s16 Q_N_S_mul(u8 s, s16 x, s16 y);
s32 Q_24_8_mul(s32 x, s32 y);
// x / y
s16 Q_8_8_div(s16 x, s16 y);
s16 Q_N_S_div(u8 s, s16 x, s16 y);
s32 Q_24_8_div(s32 x, s32 y);
// 1.0 / y
s16 Q_8_8_inv(s16 y);
s16 Q_N_S_inv(u8 s, s16 y);
s32 Q_24_8_inv(s32 y);
#endif //GUARD_MATH_UTIL_H