gba-x3dtest
annotate src/fixed.h @ 4:78d1664c2443
- fixed sin_x16/cos_x16
- added fixed point header
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Sat, 14 Jun 2014 03:04:56 +0300 |
| parents | |
| children | 158d23956801 |
| rev | line source |
|---|---|
| nuclear@4 | 1 #ifndef FIXED_H_ |
| nuclear@4 | 2 #define FIXED_H_ |
| nuclear@4 | 3 |
| nuclear@4 | 4 #include <stdint.h> |
| nuclear@4 | 5 |
| nuclear@4 | 6 #define x16mul(a, b) (int32_t)(((int32_t)(a) >> 8) * ((int32_t)(b) >> 8)) |
| nuclear@4 | 7 /*int32_t x16div(register int32_t num, register int32_t denom);*/ |
| nuclear@4 | 8 |
| nuclear@4 | 9 #define x16div(a, b) (int32_t)(((int64_t)(a) << 16) / (b)) |
| nuclear@4 | 10 |
| nuclear@4 | 11 #endif /* FIXED_H_ */ |