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oot/include/ultra64/gu.h

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#ifndef ULTRA64_GU_H
#define ULTRA64_GU_H
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#include "ultratypes.h"
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#define GU_PI 3.1415926
#define FTOFIX32(x) (s32)((x) * (f32)0x00010000)
#define FIX32TOF(x) ((f32)(x) * (1.0f / (f32)0x00010000))
#define ROUND(x) (s32)(((x) >= 0.0) ? ((x) + 0.5) : ((x) - 0.5))
typedef union du {
struct {
u32 hi;
u32 lo;
} word;
f64 d;
} du;
typedef union fu {
u32 i;
f32 f;
} fu;
f32 sinf(f32 angle);
s16 sins(u16 angle);
f32 cosf(f32 angle);
s16 coss(u16 angle);
extern f32 __libm_qnan_f;
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#endif