Now that my experimental programming language, H2D2, includes the all important server part, I thought that I'd better record an example of the traditional 'Hello World' program:
Although these programs are very trivial, it shows that I can now do H2D2 programming from my browser. It's the server part which compiles the source into bytecode and then executes the program in timeslices. So the actual code is running inside the server and we're just seeing the output in the browser (alongside the source code of course). Since I recorded this in a coffee shop before work this morning, the H2D2 server was running locally inside Xcode on my Mac, for convenience. But I would be able to do the same thing even if the server was running elsewhere, like on my TP-Link router.
UPDATE: one of the "better code examples" I mention above can now be seen here.
So, I managed to find a proper "Hello World" program for my PDP-11 on the internet. It can be typed into ODT without too much effort. This is what happened when I typed it into my machine:
As you can see, I'm using this to disable interrupts and start it:
It's a useful little test. I now know that my machine is capable of running programs, which is good.
So my next step is to try an RT11 boot disk so that I can attempt to run an operating system. The ultimate goal is to run Unix rather than RT11, but you've got to start somewhere...