diff --git a/bsx.cpp b/bsx.cpp index 294629ba..a07bc6b9 100644 --- a/bsx.cpp +++ b/bsx.cpp @@ -704,18 +704,20 @@ static void BSX_Map (void) static uint8 BSX_Get_Bypass_FlashIO (uint32 offset) { + //For games other than BS-X + FlashROM = Memory.ROM + Multi.cartOffsetB; + if (BSX.prevMMC[0x02]) - { return (FlashROM[offset & 0x0FFFFF]); - } else - { return (FlashROM[(offset & 0x1F0000) >> 1 | (offset & 0x7FFF)]); - } } static void BSX_Set_Bypass_FlashIO (uint32 offset, uint8 byte) { + //For games other than BS-X + FlashROM = Memory.ROM + Multi.cartOffsetB; + if (BSX.prevMMC[0x02]) FlashROM[offset & 0x0FFFFF] = FlashROM[offset & 0x0FFFFF] & byte; else @@ -814,106 +816,105 @@ void S9xSetBSX (uint8 byte, uint32 address) } // Flash Command Handling - if (BSX.MMC[0xC]) { - //Memory Pack Type 1 & 3 & 4 - BSX.flash_command <<= 8; - BSX.flash_command |= byte; + + //Memory Pack Type 1 & 3 & 4 + BSX.flash_command <<= 8; + BSX.flash_command |= byte; - switch (BSX.flash_command & 0xFF) - { - case 0x00: - case 0xFF: - //Reset to normal - BSX.flash_enable = false; - BSX.flash_bsr = false; - BSX.flash_csr = false; - BSX.flash_gsr = false; - BSX.read_enable = false; - BSX.write_enable = false; - BSX.flash_cmd_done = true; - break; + switch (BSX.flash_command & 0xFF) + { + case 0x00: + case 0xFF: + //Reset to normal + BSX.flash_enable = false; + BSX.flash_bsr = false; + BSX.flash_csr = false; + BSX.flash_gsr = false; + BSX.read_enable = false; + BSX.write_enable = false; + BSX.flash_cmd_done = true; + break; - case 0x10: - case 0x40: - //Write Byte - BSX.flash_enable = false; - BSX.flash_bsr = false; - BSX.flash_csr = true; - BSX.flash_gsr = false; - BSX.read_enable = false; - BSX.write_enable = true; - BSX.flash_cmd_done = true; - break; + case 0x10: + case 0x40: + //Write Byte + BSX.flash_enable = false; + BSX.flash_bsr = false; + BSX.flash_csr = true; + BSX.flash_gsr = false; + BSX.read_enable = false; + BSX.write_enable = true; + BSX.flash_cmd_done = true; + break; - case 0x50: - //Clear Status Register - BSX.flash_enable = false; - BSX.flash_bsr = false; - BSX.flash_csr = false; - BSX.flash_gsr = false; - BSX.flash_cmd_done = true; - break; + case 0x50: + //Clear Status Register + BSX.flash_enable = false; + BSX.flash_bsr = false; + BSX.flash_csr = false; + BSX.flash_gsr = false; + BSX.flash_cmd_done = true; + break; - case 0x70: - //Read CSR - BSX.flash_enable = false; - BSX.flash_bsr = false; - BSX.flash_csr = true; - BSX.flash_gsr = false; - BSX.read_enable = false; - BSX.write_enable = false; - BSX.flash_cmd_done = true; - break; + case 0x70: + //Read CSR + BSX.flash_enable = false; + BSX.flash_bsr = false; + BSX.flash_csr = true; + BSX.flash_gsr = false; + BSX.read_enable = false; + BSX.write_enable = false; + BSX.flash_cmd_done = true; + break; - case 0x71: - //Read Extended Status Registers (Page and Global) - BSX.flash_enable = false; - BSX.flash_bsr = true; - BSX.flash_csr = false; - BSX.flash_gsr = true; - BSX.read_enable = false; - BSX.write_enable = false; - BSX.flash_cmd_done = true; - break; + case 0x71: + //Read Extended Status Registers (Page and Global) + BSX.flash_enable = false; + BSX.flash_bsr = true; + BSX.flash_csr = false; + BSX.flash_gsr = true; + BSX.read_enable = false; + BSX.write_enable = false; + BSX.flash_cmd_done = true; + break; - case 0x75: - //Show Page Buffer / Vendor Info - BSX.flash_csr = false; - BSX.read_enable = true; - BSX.flash_cmd_done = true; - break; + case 0x75: + //Show Page Buffer / Vendor Info + BSX.flash_csr = false; + BSX.read_enable = true; + BSX.flash_cmd_done = true; + break; - case 0xD0: - //DO COMMAND - switch (BSX.flash_command & 0xFFFF) - { - case 0x20D0: //Block Erase + case 0xD0: + //DO COMMAND + switch (BSX.flash_command & 0xFFFF) + { + case 0x20D0: //Block Erase + uint32 x; + for (x = 0; x < 0x10000; x++) { + //BSX_Set_Bypass_FlashIO(((address & 0xFF0000) + x), 0xFF); + if (BSX.MMC[0x02]) + FlashROM[(address & 0x0F0000) + x] = 0xFF; + else + FlashROM[((address & 0x1E0000) >> 1) + x] = 0xFF; + } + break; + + case 0xA7D0: //Chip Erase (ONLY IN TYPE 1 AND 4) + if ((flashcard[6] & 0xF0) == 0x10 || (flashcard[6] & 0xF0) == 0x40) + { uint32 x; - for (x = 0; x < 0x10000; x++) { - //BSX_Set_Bypass_FlashIO(((address & 0xFF0000) + x), 0xFF); - if (BSX.MMC[0x02]) - FlashROM[(address & 0x0F0000) + x] = 0xFF; - else - FlashROM[((address & 0x1E0000) >> 1) + x] = 0xFF; + for (x = 0; x < FLASH_SIZE; x++) { + //BSX_Set_Bypass_FlashIO(x, 0xFF); + FlashROM[x] = 0xFF; } - break; + } + break; - case 0xA7D0: //Chip Erase (ONLY IN TYPE 1 AND 4) - if ((flashcard[6] & 0xF0) == 0x10 || (flashcard[6] & 0xF0) == 0x40) - { - uint32 x; - for (x = 0; x < FLASH_SIZE; x++) { - //BSX_Set_Bypass_FlashIO(x, 0xFF); - FlashROM[x] = 0xFF; - } - } - break; - - case 0x38D0: //Flashcart Reset - break; - } - break; - } + case 0x38D0: //Flashcart Reset + break; + } + break; } }