empathicqubit/Mesen-SX
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Cart: Change SRAM mappings for lorom depending on cart size

Browse source 
(Fixes Wanderers from Ys)
This commit is contained in:
Sour 2019-06-30 20:17:29 -04:00
parent 57c31ad354
commit 937f927850
2 changed files with 12 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
Core/BaseCartridge.cpp
View file

@ -261,9 +261,17 @@ void BaseCartridge::RegisterHandlers(MemoryManager &mm)
if(_flags & CartFlags::LoRom) {
MapBanks(mm, _prgRomHandlers, 0x00, 0x7D, 0x08, 0x0F, 0, true);
MapBanks(mm, _prgRomHandlers, 0x80, 0xFF, 0x08, 0x0F, 0, true);
if(_saveRamSize > 0) {
MapBanks(mm, _saveRamHandlers, 0x70, 0x7D, 0x00, 0x07, 0, true);
MapBanks(mm, _saveRamHandlers, 0xF0, 0xFF, 0x00, 0x07, 0, true);
if(_prgRomSize >= 1024 * 1024 * 2) {
//For games >= 2mb in size, put ROM at 70-7D/F0-FF:0000-7FFF (e.g: Fire Emblem: Thracia 776)
MapBanks(mm, _saveRamHandlers, 0x70, 0x7D, 0x00, 0x07, 0, true);
MapBanks(mm, _saveRamHandlers, 0xF0, 0xFF, 0x00, 0x07, 0, true);
} else {
//For games < 2mb in size, put save RAM at 70-7D/F0-FF:0000-7FFF (e.g: Wanderers from Ys)
MapBanks(mm, _saveRamHandlers, 0x70, 0x7D, 0x00, 0x0F, 0, true);
MapBanks(mm, _saveRamHandlers, 0xF0, 0xFF, 0x00, 0x0F, 0, true);
}
}
} else if(_flags & CartFlags::HiRom) {
MapBanks(mm, _prgRomHandlers, 0x00, 0x3F, 0x08, 0x0F, 8, true);

4
Core/MemoryManager.cpp
View file

@ -95,9 +95,9 @@ void MemoryManager::RegisterHandler(uint32_t startAddr, uint32_t endAddr, IMemor
}
for(uint32_t addr = startAddr; addr < endAddr; addr += 0x1000) {
if(_handlers[addr >> 12]) {
/*if(_handlers[addr >> 12]) {
throw std::runtime_error("handler already set");
}
}*/
_handlers[addr >> 12] = handler;
}