diff options
| author | PikalaxALT <pikalaxalt@gmail.com> | 2021-06-04 09:10:09 -0400 |
|---|---|---|
| committer | PikalaxALT <pikalaxalt@gmail.com> | 2021-06-04 09:10:09 -0400 |
| commit | 75ab879fd876d35eac8498296994278e213b6e7a (patch) | |
| tree | b9763615e9771ac5dce777031a80b57b12d9cac2 /include/math_util.h | |
| parent | e82080d42bbb81b2add8bef5c073cc353dfea307 (diff) | |
| parent | 2d3210dc1129e3d60a9d138838dc867d8b106b41 (diff) | |
Merge remote-tracking branch 'origin/master' into modern_ld
Diffstat (limited to 'include/math_util.h')
| -rw-r--r-- | include/math_util.h | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/include/math_util.h b/include/math_util.h index 9f9677463..1f8edc5d9 100644 --- a/include/math_util.h +++ b/include/math_util.h @@ -1,11 +1,21 @@ #ifndef GUARD_MATH_UTIL_H #define GUARD_MATH_UTIL_H -s16 MathUtil_Inv16(s16 y); -s16 MathUtil_Mul16(s16 x, s16 y); -s32 MathUtil_Div32(s32 x, s32 y); -s32 MathUtil_Mul32(s32 x, s32 y); -s16 MathUtil_Div16Shift(u8 s, s16 x, s16 y); -s16 MathUtil_Mul16Shift(u8 s, s16 x, s16 y); +// 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 |