16-Bit VM in JavaScript

Ah very cool! Rust seems like an awesome language, especially for something like this. I'l going to take a dive into your project at some point in the week

Props for choosing `->` instead of either of the historical mistakes `opcode s, d` or `opcode d, s`.

That's a very fuzzy, if not non-existent, distinction. The only real difference is the designers' original intention. Of course the Java VM was originally only destined to exist only in software, but hardware versions do exists [1]. And of course x86 was always destined for hardware, but there's more software implementations of that than can be counted. There's also a third type in the LLVM sense, where the VM is just an intermediate step in compiling from a high level language down to machine code. And that's where the JVM (mostly) falls today.

The VM described in the OP could easily fit in any of the three.

[1] http://www.jopdesign.com/

Indeed, the core concepts are essentially exactly the same. This is a lot simpler of course because it doesn't need to do anything with drawing or sound.

I really like this project https://github.com/juchi/gameboy.js/ . I'd like to do something similar myself but more in the coding style I've used on the 16-bit VM.

Yes, there are some similarities to how you would write an emulator for a real piece of hardware. It would be possible to write an emulator for whatever hardware you can find enough information about.

Thanks, I've had mixed feedback about that choice!