Hardware wasn’t the only focus. "Technical" also meant . Many Blogspot blogs predated the high-accuracy emulators of today. They offered:
A compelling feature for a technical blog like Technical Sega (technical-sega.blogspot.com) would be a "Retro-Tech Reverse Engineering Series." technical segablogspotcom
Put these files in your RetroArch/system folder. Without these, the core will fail. Hardware wasn’t the only focus