diff options
Diffstat (limited to 'include/math_util.h')
| -rw-r--r-- | include/math_util.h | 23 |
1 files changed, 9 insertions, 14 deletions
diff --git a/include/math_util.h b/include/math_util.h index 29fa8f59d..1f8edc5d9 100644 --- a/include/math_util.h +++ b/include/math_util.h @@ -3,24 +3,19 @@ // 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 Q_8_8_mul(fx16 x, fx16 y); -fxn16 Q_N_S_mul(u8 s, fxn16 x, fxn16 y); -fx32 Q_24_8_mul(fx32 x, fx32 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 -fx16 Q_8_8_div(fx16 x, fx16 y); -fxn16 Q_N_S_div(u8 s, fxn16 x, fxn16 y); -fx32 Q_24_8_div(fx32 x, fx32 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 -fx16 Q_8_8_inv(fx16 y); -fxn16 Q_N_S_inv(u8 s, fxn16 y); -fx32 Q_24_8_inv(fx32 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 |