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[SCD] fixed internal backup RAM formatting when switching regions

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This commit is contained in:
EkeEke 2012-07-21 19:10:36 +02:00
parent ac33d5ee34
commit a973fd587e
1 changed files with 9 additions and 1 deletions
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10
source/gx/fileio/file_slot.c
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@ -108,12 +108,17 @@ void slot_autoload(int slot, int device)
/* update CRC */ /* update CRC */
brm_crc[0] = crc32(0, scd.bram, 0x2000); brm_crc[0] = crc32(0, scd.bram, 0x2000);
} }
else
{
/* force internal backup RAM format (does not use previous region backup RAM) */
scd.bram[0x1fff] = 0;
}
/* check if internal backup RAM is correctly formatted */ /* check if internal backup RAM is correctly formatted */
if (memcmp(scd.bram + 0x2000 - 0x20, brm_format + 0x20, 0x20)) if (memcmp(scd.bram + 0x2000 - 0x20, brm_format + 0x20, 0x20))
{ {
/* clear internal backup RAM */ /* clear internal backup RAM */
memset(scd.bram, 0x00, 0x200); memset(scd.bram, 0x00, 0x2000 - 0x40);
/* internal Backup RAM size fields */ /* internal Backup RAM size fields */
brm_format[0x10] = brm_format[0x12] = brm_format[0x14] = brm_format[0x16] = 0x00; brm_format[0x10] = brm_format[0x12] = brm_format[0x14] = brm_format[0x16] = 0x00;
@ -121,6 +126,9 @@ void slot_autoload(int slot, int device)
/* format internal backup RAM */ /* format internal backup RAM */
memcpy(scd.bram + 0x2000 - 0x40, brm_format, 0x40); memcpy(scd.bram + 0x2000 - 0x40, brm_format, 0x40);
/* clear CRC to force file saving (in case previous region backup RAM was also formatted) */
brm_crc[0] = 0;
} }
/* automatically load cartridge backup RAM (if enabled) */ /* automatically load cartridge backup RAM (if enabled) */