MartyPC: A Cross-Platform Emulator of Early PCs in Rust

MartyPC — a cross-platform emulator of early personal computers written in the Rust language — drew notable attention on Hacker News. The post racked up 109 points and gathered 33 comments, which speaks to a lively interest in the topic of retrocomputing.

In addition to the regular build, the project has a web version (MartyPC Web Edition) that runs right in the browser: the user is invited to choose a system configuration and “spin” the virtual case using the arrow keys, the keyboard, or swipes on a touchscreen.

What You Can Emulate

The web edition's interface gives a sense of just how thoroughly the “hardware” of that era has been recreated. The user can choose a graphics card from a whole range of historical standards:

• MDA — a monochrome text adapter;
• Hercules — monochrome graphics;
• CGA and EGA — color adapters;
• VGA — a later standard familiar to many.

Beyond the video subsystem, additional components are available: a memory expansion module (Memory Sidecar) and an AdLib sound card — one of the key ones for music in early DOS games and applications.

The choice of Rust for a project like this is a natural one: strict memory control and predictable performance are useful where you need to model the behavior of the processor and peripherals precisely, while cross-platform support makes it possible to build the emulator for different systems and, as the web version shows, compile it to run in the browser.

For anyone interested in the history of the PC or engaged in preserving old software, MartyPC looks like a convenient way to get acquainted with the architecture of the first machines without hunting down genuine antiques — all it takes is to open the project's page and select the configuration you want.

Source: Hacker News