On Mon, Jan 31, 2022 at 10:17 AM Paul Winalski <paul.winalski@gmail.com>
wrote:

> On 1/30/22, Steve Nickolas <usotsuki@buric.co> wrote:
> > And I think I've heard the Infocom compilers' bytecode called "Z-code" (I
> > use this term too).
> That is correct.  The Infocom games ran on an interpreter for an
> abstract machine called the Z-machine.  Z-code is the Z-machine's
> instruction set.  There is a freeware implementation out there called
> Frotz.
>
>
There's a reasonably functional Frotz implementation for TOPS-20, as it
happens.  The ZIP interpreter was easier to port to 2.11BSD on the PDP-11.

https://github.com/athornton/tops20-frotz

Adam