initial commit

src/mappers/Mapper000.cpp

@@ -0,0 +1,40 @@
+#include "Mapper000.hpp"
+#include "../Log.hpp"
+
+#include <fstream>
+#include "../Cartridge.hpp"
+
+Mapper000::Mapper000(Header& header, std::ifstream& ifs)
+{
+	LOG_CORE_INFO("Allocating PRG ROM");
+	PRG_ROM = std::vector<Byte>(0x4000);
+	ifs.read((char*)PRG_ROM.data(), 0x4000);
+
+	LOG_CORE_INFO("Allocating CHR ROM");
+	CHR_ROM = std::vector<Byte>(0x2000);
+	ifs.read((char*)CHR_ROM.data(), 0x2000);
+}
+
+Byte Mapper000::ReadCPU(Word addr)
+{
+	if (0x8000 <= addr && addr <= 0xFFFF)
+	{
+		return PRG_ROM[addr & 0x03FFF];
+	}
+}
+
+Byte Mapper000::ReadPPU(Word addr)
+{
+	if (0x0000 <= addr && addr <= 0x1FFF)
+	{
+		return CHR_ROM[addr];
+	}
+}
+
+void Mapper000::WriteCPU(Word addr, Byte val)
+{
+}
+
+void Mapper000::WritePPU(Word addr, Byte val)
+{
+}

src/mappers/Mapper000.hpp

@@ -0,0 +1,19 @@
+#pragma once
+
+#include <vector>
+#include <fstream>
+#include "../Mapper.hpp"
+
+struct Header;
+
+class Mapper000 :
+	public Mapper
+{
+public:
+	Mapper000(Header& header, std::ifstream& ifs);
+
+	virtual Byte ReadCPU(Word addr) override;
+	virtual Byte ReadPPU(Word addr) override;
+	virtual void WriteCPU(Word addr, Byte val) override;
+	virtual void WritePPU(Word addr, Byte val) override;
+};