gba-trycatch

annotate src/fixed.h @ 15:b755fb002f17

foo
author John Tsiombikas <nuclear@member.fsf.org>
date Wed, 25 Jun 2014 17:02:48 +0300
parents 158d23956801
children
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@7 6 #define ftox16(x) (int32_t)((x) * 65536.0f)
nuclear@7 7 #define itox16(x) (int32_t)((x) << 16)
nuclear@7 8
nuclear@7 9 #define x16tof(x) (float)((x) / 65536.0f)
nuclear@7 10 #define x16toi(x) ((x) >> 16)
nuclear@7 11
nuclear@4 12 #define x16mul(a, b) (int32_t)(((int32_t)(a) >> 8) * ((int32_t)(b) >> 8))
nuclear@4 13 /*int32_t x16div(register int32_t num, register int32_t denom);*/
nuclear@4 14 #define x16div(a, b) (int32_t)(((int64_t)(a) << 16) / (b))
nuclear@4 15
nuclear@8 16 #define x16sq(x) x16mul(x, x)
nuclear@8 17
nuclear@4 18 #endif /* FIXED_H_ */