sys_math, cosf OK and documented, sinf, coss, sins documented (#289)

* OK, data imported, document

* spec

* Match cosf, document sinf and cosf

* Some more documentation, switch fu back

* Format

* Little more documentation

* Document coss too

* Move macros

* Review, add some .s

* Fix headers, review

include/convert.h

@@ -1,6 +1,8 @@
 #ifndef _ULTRA64_CONVERT_H_
 #define _ULTRA64_CONVERT_H_
 
+#include "stdint.h"
+
 #define OS_CLOCK_RATE           62500000LL
 #define OS_CPU_COUNTER          (OS_CLOCK_RATE*3/4)
 

include/functions.h

@@ -3269,9 +3269,9 @@ void Check_ClearRGBA16(s16* buffer);
 // void Check_DrawRegionLockErrorMessage(void);
 // void Check_ExpansionPak(void);
 // void Check_RegionIsSupported(void);
-f32 func_80179300(f32 param_1);
-f32 func_80179400(s32 param_1);
-f32 pow_int(f32 x, s32 pow);
+f32 func_80179300(f32 n);
+f32 func_80179400(s32 n);
+f32 pow_int(f32 base, s32 exp);
 f32 sin_rad(f32 rad);
 f32 cos_rad(f32 rad);
 f32 Rand_ZeroFloat(f32 scale);

include/macros.h

@@ -1,8 +1,9 @@
 #ifndef _MACROS_H_
 #define _MACROS_H_
 
-#include "convert.h"
 #include "stdint.h"
+#include "convert.h"
+#include "z64.h"
 
 #define ARRAY_COUNT(arr) (s32)(sizeof(arr) / sizeof(arr[0]))
 #define ARRAY_COUNTU(arr) (u32)(sizeof(arr) / sizeof(arr[0]))
@@ -116,6 +117,8 @@ extern GraphicsContext* __gfxCtx;
 #define CLAMP_MAX(x, max) ((x) > (max) ? (max) : (x))
 #define CLAMP_MIN(x, min) ((x) < (min) ? (min) : (x))
 
+#define ROUND(x) (s32)(((x) >= 0.0) ? ((x) + 0.5) : ((x) - 0.5))
+
 #define SWAP(type, a, b)  \
     {                     \
         type _temp = (a); \

include/math.h

@@ -12,12 +12,11 @@
 #define DEGTORAD(x) ((x) * (M_PI / 180.0f))
 
 typedef union {
+    f64 d;
     struct {
         u32 hi;
         u32 lo;
     } word;
-
-    f64 d;
 } du;
 
 typedef union {

include/variables.h

@@ -1670,7 +1670,7 @@ extern PadMgr* padmgrContext;
 // extern UNK_TYPE4 controllerInputsCaptured;
 // extern UNK_TYPE4 D_801D1538;
 extern UNK_PTR D_801D1540;
-extern f32 D_801D1570[13];
+// extern f32 sFactorialTbl[13];
 extern Vec3f D_801D15B0;
 extern Vec3s D_801D15BC;
 extern RSPMatrix D_801D1DE0;