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Ooh I love this.

Seeing a DOS transpiled into JavaScript is pretty cool. Seeing a DOS written in the 90s by a Spanish speaking native who wanted everything written in Spanish is AWESOME. Being told write AYUDA is great. I love the sense of ownership it implies the author had as a teen. Just super fun.

>In the old times, Javascript was an interpreted language, but since many years ago it is implemented as a JIT (Just-In-Time) compiler, so it can approach speeds closer to the C language.

Looking at many benchmarks I've seen C#, Java, Go approaching the speed of C, but I never have seen Javascript doing that.

Perhaps is because it's dynamically typed and is harder for compiler and VM to optimize the generated code?

TIL about ">>>" giving an unsigned result, very useful!

It's incredible to see such an amount of Transputer work without seemingly mentioning either Occam or the microcode instructions regarding channels. The fact the Transputer was intended to be a high performance design is so often lost, and the development of the floating point units proved one of the more successful bits of the entire enterprise.

The impressive part here isn't so much the emulator, but all the rest. A pascal compiler for the Transputer as a teenager in early 90s Mexico? That's brilliantly unlikely.