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https://github.com/ekeeke/Genesis-Plus-GX.git
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[SCD] fixed internal backup RAM formatting when switching regions
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@ -108,12 +108,17 @@ void slot_autoload(int slot, int device)
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/* update CRC */
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brm_crc[0] = crc32(0, scd.bram, 0x2000);
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}
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else
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{
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/* force internal backup RAM format (does not use previous region backup RAM) */
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scd.bram[0x1fff] = 0;
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}
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/* check if internal backup RAM is correctly formatted */
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if (memcmp(scd.bram + 0x2000 - 0x20, brm_format + 0x20, 0x20))
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{
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/* clear internal backup RAM */
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memset(scd.bram, 0x00, 0x200);
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memset(scd.bram, 0x00, 0x2000 - 0x40);
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/* internal Backup RAM size fields */
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brm_format[0x10] = brm_format[0x12] = brm_format[0x14] = brm_format[0x16] = 0x00;
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@ -121,6 +126,9 @@ void slot_autoload(int slot, int device)
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/* format internal backup RAM */
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memcpy(scd.bram + 0x2000 - 0x40, brm_format, 0x40);
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/* clear CRC to force file saving (in case previous region backup RAM was also formatted) */
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brm_crc[0] = 0;
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}
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/* automatically load cartridge backup RAM (if enabled) */
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