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Fix #359

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Note to self: need to pay attention to this with every FatFS update.
This commit is contained in:
d0k3 2018-04-26 12:13:37 +02:00
parent 470cd95121
commit 4d7f047caf
1 changed files with 2 additions and 0 deletions
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2
arm9/source/fatfs/ff.c
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@ -3187,6 +3187,8 @@ static BYTE check_fs ( /* 0:FAT, 1:exFAT, 2:Valid BS but not FAT, 3:Not a BS, 4:
if (fs->win[BS_JmpBoot] == 0xE9 || fs->win[BS_JmpBoot] == 0xEB || fs->win[BS_JmpBoot] == 0xE8) { /* Valid JumpBoot code? */ if (fs->win[BS_JmpBoot] == 0xE9 || fs->win[BS_JmpBoot] == 0xEB || fs->win[BS_JmpBoot] == 0xE8) { /* Valid JumpBoot code? */
if (!mem_cmp(fs->win + BS_FilSysType, "FAT", 3)) return 0; /* Is it an FAT VBR? */ if (!mem_cmp(fs->win + BS_FilSysType, "FAT", 3)) return 0; /* Is it an FAT VBR? */
if (!mem_cmp(fs->win + BS_FilSysType32, "FAT32", 5)) return 0; /* Is it an FAT32 VBR? */ if (!mem_cmp(fs->win + BS_FilSysType32, "FAT32", 5)) return 0; /* Is it an FAT32 VBR? */
/* !CUSTOM CODE! - special detection for public.sav archives in the TWLN partition */
if ((ld_dword(fs->win + BS_FilSysType) == 0x00) && (ld_dword(fs->win + BS_VolID) == 0x12345678)) return 0;
} }
return 2; /* Valid BS but not FAT */ return 2; /* Valid BS but not FAT */
} }