mirror of
https://github.com/n64decomp/mk64
synced 2026-05-28 16:00:59 -04:00
Faris Awan
5c23113592
* libultra from sm64 integrated; 3 libultra functions matched * All of libultra done! authored-by: farisawan-2000 <farisawan.2000@gmail.com>
59 lines
1.7 KiB
C
Executable File
59 lines
1.7 KiB
C
Executable File
#include "libultra_internal.h"
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#include "controller.h"
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s32 osPfsFileState(OSPfs *pfs, s32 file_no, OSPfsState *state)
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{
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s32 ret;
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int pages;
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__OSInode inode;
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__OSDir dir;
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__OSInodeUnit next_page;
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int j;
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u8 bank;
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u8 start_page;
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if (file_no >= pfs->dir_size || file_no < 0)
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return PFS_ERR_INVALID;
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PFS_CHECK_STATUS;
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PFS_CHECK_ID;
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SET_ACTIVEBANK_TO_ZERO;
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ERRCK(__osContRamRead(pfs->queue, pfs->channel, pfs->dir_table + file_no, (u8*)&dir));
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if (dir.company_code == 0 || dir.game_code == 0)
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return PFS_ERR_INVALID;
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if (dir.start_page.ipage < pfs->inode_start_page)
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return PFS_ERR_INCONSISTENT;
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pages = 0;
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start_page = dir.start_page.inode_t.page;
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bank = dir.start_page.inode_t.bank;
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while (bank < pfs->banks)
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{
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ERRCK(__osPfsRWInode(pfs, &inode, OS_READ, bank));
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next_page = inode.inode_page[start_page];
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pages++;
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while (next_page.ipage >= pfs->inode_start_page)
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{
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pages++;
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next_page = inode.inode_page[next_page.inode_t.page];
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if (next_page.inode_t.bank != bank)
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{
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bank = next_page.inode_t.bank;
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start_page = next_page.inode_t.page;
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break;
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}
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}
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if (next_page.ipage == 1)
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break;
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}
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if (next_page.ipage != 1)
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return PFS_ERR_INCONSISTENT;
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state->file_size = pages << PFS_ONE_PAGE;
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state->company_code = dir.company_code;
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state->game_code = dir.game_code;
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for (j = 0; j < ARRLEN(state->game_name); j++)
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state->game_name[j] = dir.game_name[j];
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for (j = 0; j < ARRLEN(state->ext_name); j++)
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state->ext_name[j] = dir.ext_name[j];
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return 0;
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}
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