README

This package provides an implementation of NES Memory Mapper Controller (MMC) for NES emulators, handling different types of mapper chips.

中文文档

Features

• Support for multiple mapper types
• Unified mapper interface
• CPU and PPU address space mapping
• Bank switching support
• Different name table mirroring modes support
• IRQ interrupt generation

Installation

Install via Composer:

composer require tourze/nes-mmc

Usage

Basic Usage

use Tourze\NES\Cartridge\Memory\PrgRom;
use Tourze\NES\Cartridge\Memory\ChrRom;
use Tourze\NES\MMC\MapperFactory;
use Tourze\NES\MMC\MirroringMode;

// Create ROM data
$prgRom = new PrgRom($prgRomData);
$chrRom = new ChrRom($chrRomData);

// Create mapper instance - using mapper #0 (NROM)
$mapper = MapperFactory::create(0, $prgRom, $chrRom);

// CPU read
$data = $mapper->cpuRead(0x8000);

// CPU write
$mapper->cpuWrite(0x6000, 0x42);

// PPU read
$patternData = $mapper->ppuRead(0x0000);

// Change mirroring mode
$mapper->setMirroringMode(MirroringMode::VERTICAL);

Register Custom Mapper

use Tourze\NES\MMC\Registry\MapperRegistry;
use MyApp\Mappers\CustomMapper;

// Register custom mapper
MapperRegistry::register(123, CustomMapper::class);

// Use custom mapper
$mapper = MapperFactory::create(123, $prgRom, $chrRom);

Supported Mappers

Currently supported mappers:

• Mapper #0 (NROM) - The most basic mapper without bank switching, used for games like Super Mario Bros
• More mappers coming soon...

License

This project is licensed under the MIT License. See the LICENSE file for details.