Matched most remaining libultra files (#221)

* 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

1 files changed, 53 insertions, 0 deletions

diff --git a/src/libultra_code/osPfsFindFile.c b/src/libultra_code/osPfsFindFile.c
new file mode 100644
index 000000000..4320aca4b
--- /dev/null
+++ b/src/libultra_code/osPfsFindFile.c
@@ -0,0 +1,53 @@
+#include <ultra64.h>
+#include <global.h>
+
+s32 osPfsFindFile(OSPfs* pfs, u16 companyCode, u32 gameCode, u8* gameName, u8* extName, s32* fileNo) {
+    s32 j;
+    s32 i;
+    __OSDir dir;
+    s32 ret = 0;
+    s32 err;
+
+    if (!(pfs->status & PFS_INITIALIZED)) {
+        return PFS_ERR_INVALID;
+    }
+
+    if ((ret = __osCheckId(pfs)) != 0) {
+        return ret;
+    }
+
+    for (j = 0; j < pfs->dir_size; j++) {
+        if ((ret = __osContRamRead(pfs->queue, pfs->channel, pfs->dir_table + j, &dir)) != 0) {
+            return ret;
+        }
+        if ((ret = __osPfsGetStatus(pfs->queue, pfs->channel)) != 0) {
+            return ret;
+        }
+
+        if ((dir.company_code == companyCode) && (dir.game_code == gameCode)) {
+            err = 0;
+            if (gameName != 0) {
+                for (i = 0; i < PFS_FILE_NAME_LEN; i++) {
+                    if (dir.game_name[i] != gameName[i]) {
+                        err = 1;
+                        break;
+                    }
+                }
+            }
+            if ((extName != 0) && (err == 0)) {
+                for (i = 0; i < PFS_FILE_EXT_LEN; i++) {
+                    if (dir.ext_name[i] != extName[i]) {
+                        err = 1;
+                        break;
+                    }
+                }
+            }
+            if (err == 0) {
+                *fileNo = j;
+                return ret;
+            }
+        }
+    }
+    *fileNo = -1;
+    return PFS_ERR_INVALID;
+}