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Support for MSP54LV100

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Lesserkuma
2023-11-24 18:05:40 +01:00
parent a3c4a44893
commit 1bf4927d6b
4 changed files with 76 additions and 5 deletions
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61
source/flash.c
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@@ -66,6 +66,22 @@ IWRAM_CODE void FlashDetectType(void)
return;
}
// 1G cart with MSP54LV100S (Zelda Classic Collection 7-in-1)
_FLASH_WRITE(0, 0xF0);
_FLASH_WRITE(0xAAA, 0xA9);
_FLASH_WRITE(0x555, 0x56);
_FLASH_WRITE(0xAAA, 0x90);
data = *(vu32 *)AGB_ROM;
_FLASH_WRITE(0, 0xF0);
if (data == 0x227D0002)
{
REG_IE = ie;
flash_type = 3;
flash_sector_size = 0x20000;
FlashCalcOffsets();
return;
}
// Unknown type
REG_IE = ie;
flash_type = 0;
@@ -119,6 +135,24 @@ IWRAM_CODE void FlashEraseSector(u32 address)
}
_FLASH_WRITE(address, 0xF0F0);
}
else if (_flash_type == 3)
{
_FLASH_WRITE(0xAAA, 0xA9);
_FLASH_WRITE(0x555, 0x56);
_FLASH_WRITE(0xAAA, 0x80);
_FLASH_WRITE(0xAAA, 0xA9);
_FLASH_WRITE(0x555, 0x56);
_FLASH_WRITE(address, 0x30);
while (1)
{
__asm("nop");
if ((*((vu16 *)(AGB_ROM + address))) == 0xFFFF)
{
break;
}
}
_FLASH_WRITE(address, 0xF0);
}
REG_IE = ie;
}
@@ -191,6 +225,33 @@ IWRAM_CODE void FlashWriteData(u32 address, u32 length)
}
_FLASH_WRITE(address, 0xF0F0);
}
else if (_flash_type == 3)
{
for (int j = 0; j < (int)(length / 0x40); j++)
{
_FLASH_WRITE(0xAAA, 0xA9);
_FLASH_WRITE(0x555, 0x56);
_FLASH_WRITE(address + (j * 0x40), 0x26);
_FLASH_WRITE(address + (j * 0x40), 0x1F);
u16 data = 0;
for (int i = 0; i < 0x40; i += 2)
{
__asm("nop");
data = data_buffer[(j * 0x40) + i + 1] << 8 | data_buffer[(j * 0x40) + i];
_FLASH_WRITE(address + (j * 0x40) + i, data);
}
_FLASH_WRITE(address + (j * 0x40), 0x2A);
while (1)
{
__asm("nop");
if (p_rom[(j * 0x20) + 0x1F] == data)
{
break;
}
}
}
_FLASH_WRITE(address, 0xF0);
}
REG_IE = ie;
}