Implement class for cartridge and rudimentary ROM inspector
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parent
0c52f9d2e0
commit
6e7d06299a
6 changed files with 86 additions and 1 deletions
1
.gitignore
vendored
1
.gitignore
vendored
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@ -2,3 +2,4 @@
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/vgbc
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/libemu.a
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/vgbc.test
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/vgbc.inspect
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3
Makeconf
3
Makeconf
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@ -5,6 +5,7 @@ modules := memory/device \
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memory/register \
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memory/bank \
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cpu/cpu \
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cpu/decoder
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cpu/decoder \
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cartridge/cartridge
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CXX_FLAGS := -I $(CURDIR)
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4
Makefile
4
Makefile
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@ -34,3 +34,7 @@ vgbc: main.o libemu.a
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vgbc.test: $(test-objs) libemu.a
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@echo " ==> link $@"; \
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g++ $(CXX_FLAGS) -o $@ $^
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vgbc.inspect: cartridge/inspector.o libemu.a
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@echo " ==> link $@"; \
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g++ $(CXX_FLAGS) -o $@ $^
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22
cartridge/cartridge.cpp
Normal file
22
cartridge/cartridge.cpp
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@ -0,0 +1,22 @@
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#include <cartridge/cartridge.h>
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#include <cstring>
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Cartridge::Cartridge(std::ifstream& file)
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{
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_size = file.seekg(0, std::ios_base::end).tellg();
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file.seekg(0, std::ios_base::beg);
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_data = new u8[_size];
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file.read(reinterpret_cast<char*>(_data), _size);
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std::strncpy(_title, (char*)&_data[TITLE], 16);
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_title[16] = '\0';
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}
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u8 Cartridge::operator[](size_t addr)
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{
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if(addr >= _size)
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return 0xFFu;
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return _data[addr];
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}
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37
cartridge/cartridge.h
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37
cartridge/cartridge.h
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@ -0,0 +1,37 @@
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#pragma once
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#include <misc/types.h>
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#include <fstream>
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enum CartridgeType : u8 {
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ROM_ONLY = 0x00,
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MBC1 = 0x01,
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MBC1_RAM = 0x02,
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MBC1_RAM_BATTERY = 0x03,
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};
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class Cartridge {
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private:
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u8* _data;
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size_t _size;
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char _title[17];
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enum Offsets {
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TITLE = 0x0134,
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MANU_CODE = 0x013F,
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};
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public:
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Cartridge(std::ifstream& file);
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u8 operator[](size_t addr);
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inline
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const char* title()
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{ return _title; }
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inline
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size_t size()
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{ return _size; }
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};
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20
cartridge/inspector.cpp
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20
cartridge/inspector.cpp
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@ -0,0 +1,20 @@
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#include <iostream>
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#include <fstream>
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#include <cartridge/cartridge.h>
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int main(int argc, char** argv)
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{
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if(argc < 2) return 1;
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std::ifstream file;
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file.open(argv[1]);
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Cartridge cart(file);
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std::cout << std::hex << "Path: " << argv[1] << " (size " << cart.size() << ")" << std::endl;
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std::cout << "title: " << cart.title() << std::endl;
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std::cout << std::hex << "cgb flag: " << (int)cart[0x143] << std::endl;
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std::cout << std::hex << "type: " << (int)cart[0x147] << std::endl;
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return 0;
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}
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