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Mapper 2 support

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This commit is contained in:
Souryo 2014-06-21 19:26:17 -04:00
parent 9ada341050
commit 88b33ebd42
1 changed files with 26 additions and 6 deletions
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32
Core/BaseMapper.h
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@ -31,9 +31,10 @@ class BaseMapper : public IMemoryHandler
class DefaultMapper : public BaseMapper
{
vector<MemoryBank*> _mappedRomBanks;
MemoryBank *_mappedVromBank;
private:
protected:
vector<MemoryBank*> _mappedRomBanks;
MemoryBank *_mappedVromBank;
void InitMapper()
{
if(_romBanks.size() == 1) {
@ -81,6 +82,24 @@ class DefaultMapper : public BaseMapper
}
};
class Mapper2 : public DefaultMapper
{
private:
void InitMapper()
{
DefaultMapper::InitMapper();
_mappedRomBanks[1] = &_romBanks[_romBanks.size() - 1];
}
public:
void WriteRAM(uint16_t addr, uint8_t value)
{
_mappedRomBanks[0] = &_romBanks[value];
//(*_mappedRomBanks[(addr >> 14) & 0x01])[addr & 0x3FFF] = value;
}
};
class MapperFactory
{
public:
@ -91,9 +110,10 @@ class MapperFactory
NESHeader header = loader.GetHeader();
uint8_t mapperID = header.GetMapperID();
unique_ptr<BaseMapper> mapper = nullptr;
BaseMapper* mapper = nullptr;
switch(mapperID) {
case 0: mapper = unique_ptr<BaseMapper>(new DefaultMapper()); break;
case 0: mapper = new DefaultMapper(); break;
case 2: mapper = new Mapper2(); break;
}
if(!mapper) {
@ -101,6 +121,6 @@ class MapperFactory
}
mapper->Initialize(header, loader.GetROMBanks(), loader.GetVROMBanks());
return mapper;
return unique_ptr<BaseMapper>(mapper);
}
};