BlastEm in RetroArch: Sega Genesis / Mega Drive Core Setup (Source Summary)

Overview

BlastEm is an open-source Sega 16-bit emulator focused on accuracy and portability, and it is available as a core for RetroArch. The official documentation page for this core is titled "Sega - MD/CD (BlastEm)."

Supported System

The documentation states that BlastEm has 100% compatibility with Genesis / Mega Drive. This is the compatibility claim as written in the source documentation.

Firmware File Location

Required or optional firmware files go in the frontend's system directory. In RetroArch, this is the configured system directory where the frontend looks for core firmware.

Optional ROM Feature Database

The documentation lists one optional firmware file: rom.db, described as a ROM feature database. It is optional, and if you want to use it, download it and place it in the frontend's system directory.

Setup Steps as Described in the Documentation

• 1. Install the BlastEm core in your RetroArch frontend if it is not already installed.
• 2. Locate the frontend's system directory, which is where the documentation says firmware files belong.
• 3. Optionally download rom.db from the BlastEm libretro repository and place it in that system directory. The documentation marks this file as optional.
• 4. Load a Genesis / Mega Drive game through RetroArch using the BlastEm core.

Limitations of This Source

The documentation page does not include menu labels or settings to change, install commands, or troubleshooting steps for this core. It also does not provide a specific license name: the page states that the core is licensed but the license text is absent in the excerpt, and the license summary is linked from a separate development page rather than reproduced here.