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Re-implement checkSaveOverride 

Based on #40
This commit is contained in:
HTV04 2021-11-06 16:21:59 -04:00 committed by profi200
parent 826b426e74
commit b4d1aa936e
1 changed files with 11 additions and 25 deletions
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36
source/arm11/open_agb_firm.c
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@ -165,45 +165,31 @@ static Result loadGbaRom(const char *const path, u32 *const romSizeOut)
return res;
}
// Deprecated due to gba_db.bin and defaultSave.
/*static u16 checkSaveOverride(u32 serial)
static u16 checkSaveOverride(u32 gameCode) // Save type overrides for modern homebrew.
{
static const struct
switch (gameCode & 0xFFu)
{
alignas(4) char serial[4];
u16 saveType;
} overrideLut[] =
{
// Generalizations
{"\0\0\0\0", SAVE_TYPE_SRAM_256k}, // Homebrew (TODO: Set WAITCNT to 0x4014?)
// Homebrew
{"GMB\0", SAVE_TYPE_SRAM_256k}, // Goomba Color
};
for(u32 i = 0; i < sizeof(overrideLut) / sizeof(*overrideLut); i++)
{
// Compare serial without region.
if((serial & 0xFFFFFFu) == *((u32*)overrideLut[i].serial))
{
return overrideLut[i].saveType;
}
case '1': return SAVE_TYPE_EEPROM_64k; // Homebrew using EEPROM.
case '2': return SAVE_TYPE_SRAM_256k; // Homebrew using SRAM.
case '3': return SAVE_TYPE_FLASH_512k_PSC_RTC; // Homebrew using FLASH-64.
case '4': return SAVE_TYPE_FLASH_1m_MRX_RTC; // Homebrew using FLASH-128.
case 'F': return SAVE_TYPE_EEPROM_8k; // Classic NES Series.
case 'S': return SAVE_TYPE_SRAM_256k; // Homebrew using SRAM (Butano games).
}
return 0xFF;
}*/
}
static u16 detectSaveType(u32 romSize)
{
const u32 *romPtr = (u32*)ROM_LOC;
u16 saveType;
// Deprecated due to gba_db.bin and defaultSave.
/*if((saveType = checkSaveOverride(romPtr[0xAC / 4])) != 0xFF)
if((saveType = checkSaveOverride(romPtr[0xAC / 4])) != 0xFF)
{
debug_printf("Serial in override list.\n"
"saveType: %u\n", saveType);
return saveType;
}*/
}
// Code based on: https://github.com/Gericom/GBARunner2/blob/master/arm9/source/save/Save.vram.cpp
romPtr += 0xE4 / 4; // Skip headers.