mirror of
https://github.com/SourMesen/Mesen2.git
synced 2025-04-02 10:21:44 -04:00
55 lines
No EOL
1.5 KiB
C++
55 lines
No EOL
1.5 KiB
C++
#pragma once
|
|
#include "pch.h"
|
|
#include "NES/BaseMapper.h"
|
|
#include "NES/NesConsole.h"
|
|
#include "NES/NesMemoryManager.h"
|
|
#include "NES/NesControlManager.h"
|
|
#include "NES/Input/BandaiMicrophone.h"
|
|
|
|
class BandaiKaraoke : public BaseMapper
|
|
{
|
|
private:
|
|
shared_ptr<BandaiMicrophone> _microphone;
|
|
|
|
protected:
|
|
uint16_t GetPrgPageSize() override { return 0x4000; }
|
|
uint16_t GetChrPageSize() override { return 0x2000; }
|
|
bool AllowRegisterRead() override { return true; }
|
|
bool HasBusConflicts() override { return true; }
|
|
|
|
void InitMapper() override
|
|
{
|
|
AddRegisterRange(0x6000, 0x7FFF, MemoryOperation::Read);
|
|
RemoveRegisterRange(0x8000, 0xFFFF, MemoryOperation::Read);
|
|
|
|
SelectPrgPage(0, 0);
|
|
SelectPrgPage(1, 0x07);
|
|
SelectChrPage(0, 0);
|
|
|
|
_microphone.reset(new BandaiMicrophone(_emu, _emu->GetSettings()->GetNesConfig().Port1.Keys));
|
|
_console->GetControlManager()->AddSystemControlDevice(_microphone);
|
|
}
|
|
|
|
uint8_t ReadRegister(uint16_t addr) override
|
|
{
|
|
return _microphone->ReadRam(addr) | _console->GetMemoryManager()->GetOpenBus(0xF8);
|
|
}
|
|
|
|
void WriteRegister(uint16_t addr, uint8_t value) override
|
|
{
|
|
if(value & 0x10) {
|
|
//Select internal rom
|
|
SelectPrgPage(0, value & 0x07);
|
|
} else {
|
|
//Select expansion rom
|
|
if(_prgSize >= 0x40000) {
|
|
SelectPrgPage(0, (value & 0x07) | 0x08);
|
|
} else {
|
|
//Open bus for roms that don't contain the expansion rom
|
|
RemoveCpuMemoryMapping(0x8000, 0xBFFF);
|
|
}
|
|
}
|
|
|
|
SetMirroringType(value & 0x20 ? MirroringType::Horizontal : MirroringType::Vertical);
|
|
}
|
|
}; |