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Matched most remaining libultra files (#221)

Browse source 
* osPfsIsPlug.c and osContSetCh.c OK

* update

* __osPfsGetStatus.c OK

* removed unused asm

* Updated all libultra controller files to use new structs instead of the temporary structs. Added os_pfs.h

* controller updates

* fixed header guard

* Made suggested changes

* guLookAt.c OK

* commit

* __osPfsSelectBank.c OK

* osPfsDeleteFile.c OK

* pfsreadwritefile.c OK

* osPfsFreeBlocks.c OK

* cleaned up ospfsfreeblocks

* started pfsinitpak.c

* pfsallocatefile.c OK

* contpfs.c decompiled with 1 non matching

* osPfsFindFile.c OK

* pfsinitpak.c decompiled. one non-matching

* Actually fixed merge conflict

* sins.c OK

* cosf.c sinf.c and sins.c OK

* moved osAfterPreNMI to its own file. Renamed code_801031F0 to contquery.c

* pfschecker.c OK

* final update and rename

* Removed makefile testing thing that i accidentally added

* Made suggested changes
This commit is contained in:
Lucas Shaw 2020-07-06 17:15:01 -07:00 • committed by GitHub
parent e6ca2dfd70
commit 7e195a3562
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59 changed files with 1769 additions and 3641 deletions
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67
src/libultra_code/sinf.c
View file

@ -1,3 +1,66 @@
#include "libultra_internal.h"
#include <ultra64.h>
#include <global.h>
#pragma GLOBAL_ASM("asm/non_matchings/code/sinf/sinf.s")
static const du P[] = {
{ 0x3FF00000, 0x00000000 }, { 0xBFC55554, 0xBC83656D }, { 0x3F8110ED, 0x3804C2A0 },
{ 0xBF29F6FF, 0xEEA56814 }, { 0x3EC5DBDF, 0x0E314BFE },
};
static const du rpi = { 0x3FD45F30, 0x6DC9C883 };
static const du pihi = { 0x400921FB, 0x50000000 };
static const du pilo = { 0x3E6110B4, 0x611A6263 };
static const fu zero = { 0x00000000 };
f32 sinf(f32 x) {
f64 dx;
f64 xSq;
f64 polyApprox;
f64 dn;
s32 n;
f64 result;
s32 ix, xpt;
ix = *(s32*)&x;
xpt = (ix >> 22);
xpt &= 0x1FF;
if (xpt < 0xFF) {
dx = x;
if (xpt >= 0xE6) {
xSq = SQ(dx);
polyApprox = ((P[4].d * xSq + P[3].d) * xSq + P[2].d) * xSq + P[1].d;
result = dx + (dx * xSq) * polyApprox;
return (f32)result;
}
return x;
}
if (xpt < 0x136) {
dx = x;
dn = dx * rpi.d;
n = ROUND(dn);
dn = n;
dx -= dn * pihi.d;
dx -= dn * pilo.d;
xSq = SQ(dx);
polyApprox = ((P[4].d * xSq + P[3].d) * xSq + P[2].d) * xSq + P[1].d;
result = dx + (dx * xSq) * polyApprox;
if (!(n & 1)) {
return (f32)result;
}
return -(f32)result;
}
if (x != x) {
return __libm_qnan_f;
}
return zero.f;
}