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This commit is contained in:
Cuyler36
2024-04-26 14:03:10 -04:00
parent 2308aea624
commit 38b4315a45
4 changed files with 35 additions and 25 deletions
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src/sys_math.c
+17 -10
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@@ -3,19 +3,26 @@
#include "libc64/qrand.h"
#include "libc/math.h"
void init_rnd(){
extern void init_rnd() {
sqrand(osGetCount());
}
f32 sinf_table(f32 x){
f32 max = 3.05185094476e-05f;
s16 sinf = sins((s16)(10430.0595703f * x));
return sinf * max;
#ifdef MUST_MATCH
FORCESTRIP static f32 _rodata_order(int in) {
return (f32)in;
}
#endif
extern f32 sinf_table(f32 x) {
s16 v = (SHT_MAX / M_PI) * x;
s16 sin = sins(v);
return sin * SHT_MINV;
}
f32 cosf_table(f32 x){
f32 max = 3.05185094476e-05f;
s16 cosf = coss((s16)(10430.0595703f * x));
return cosf * max;
extern f32 cosf_table(f32 x) {
s16 v = (SHT_MAX / M_PI) * x;
s16 cos = coss(v);
return cos * SHT_MINV;
}