Class Mapper000
Defined in File Mapper000.h
Inheritance Relationships
Base Type
public Mapper(Class Mapper)
Class Documentation
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class Mapper000 : public Mapper
iNES mapper 000.
PRG ROM: 16 or 32 KiB. PRG RAM: 2 or 4 KiB, this implementation provides always 8 KiB for compatibility. CHR ROM: 8 KiB If no CHR ROM present (0 KiB), m_CHRRAM will be mapped to CHR ROM and 8 KiB of memory provided.
Mirroring settings: via solder pads. This mapper has no bankswitching support.
Public Functions
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Mapper000(std::vector<uint8_t> &PRGROM, std::vector<uint8_t> &CHRROM, mirroringType_t mirroringType)
Construct Mapper 000. This mapper has a fixed mirroring mode depending on hardware configuration (soldered pad), this information is contained in the ROM dump and passed to the mapper via mirroringType parameter.
- Throws
std::invalid_argument – If PRGROM has invalid size (not 0x4000 nor 0x8000).
std::invalid_argument – If CHRROM has invalid size (not 0x8000).
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~Mapper000() override = default
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virtual void init() override
Initialize mapper to the power-up state = clean all volatile memories.
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virtual bool cpuRead(uint16_t addr, uint8_t &data) override
CPU read interface.
- Parameters
addr – Address to read from.
data – Buffer to write to.
- Returns
true If anything was read
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virtual bool cpuWrite(uint16_t addr, uint8_t data) override
CPU write interface.
- Parameters
addr – Address to write to.
data – Data to write.
- Returns
true If anything was written.
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virtual bool ppuRead(uint16_t addr, uint8_t &data) override
PPU read interface.
- Parameters
addr – Address to read from.
data – Buffer to write to.
- Returns
true If anything was read.
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virtual bool ppuWrite(uint16_t addr, uint8_t data) override
PPU write interface.
- Parameters
addr – Address to write to.
data – Data to write.
- Returns
true If anything was written.
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virtual void drawGUI() override
Draw a debugging GUI.
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Mapper000(std::vector<uint8_t> &PRGROM, std::vector<uint8_t> &CHRROM, mirroringType_t mirroringType)