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Match 4 functions in math_util, do some tidying up of imports for math_util (#144)

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* Match func_802B5450, func_802B5F00, func_802B71CC

* Match func_802B4FF8

Also do some import fixing

Signed-off-by: Taggerung <tyler.taggerung@gmail.com>
This commit is contained in:
Tyler McGavran
2022-01-18 07:46:58 -05:00
committed by GitHub
parent 5e577b8999
commit e413e2ec00
9 changed files with 118 additions and 647 deletions
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src/math_util.h
+14 -19
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@@ -4,25 +4,7 @@
#include <PR/ultratypes.h>
#include "types.h"
/*
* The sine and cosine tables overlap, but "#define gCosineTable (gSineTable +
* 0x400)" doesn't give expected codegen; gSineTable and gCosineTable need to
* be different symbols for code to match. Most likely the tables were placed
* adjacent to each other, and gSineTable cut short, such that reads overflow
* into gCosineTable.
*
* These kinds of out of bounds reads are undefined behavior, and break on
* e.g. GCC (which doesn't place the tables next to each other, and probably
* exploits array sizes for range analysis-based optimizations as well).
* Thus, for non-IDO compilers we use the standard-compliant version.
*/
extern f32 gSineTable[];
#ifdef AVOID_UB
#define gCosineTable (gSineTable + 0x400)
#else
extern f32 gCosineTable[];
#endif
#include "trig_tables.h"
//#define sins(x) gSineTable[(u16) (x) >> 4]
//#define coss(x) gCosineTable[(u16) (x) >> 4]
@@ -32,4 +14,17 @@ extern f32 gCosineTable[];
#define sqr(x) ((x) * (x))
s32 func_802B4FF8(Mat4, s32);
void mtxf_identity(Mat4);
void func_802B5398(Mat4, Mat4, s32);
void func_802B5450(Mat4, Mat4, Mat4);
void func_802B54EC(Mat4, Mat4, Mat4);
void mtxf_translate(Mat4, Vec3f);
void func_802B5F00(Mat4, f32);
void func_802B71CC(Mat4, Mat4, Mat4);
void func_802B75F8(Mtx*, Mat4);
u32 func_802B7830(f32, f32);
f32 sins(u16);
f32 coss(u16);
#endif // MATH_UTIL_H