Comment by WalterBright

Comment by WalterBright 8 days ago

2 replies

> which must have been tricky to emulate on the Dec10

I don't see why it would be tricky. I don't know how Allen's 8080 emulator on the PDP-10 worked, but it seems straightforward to emulate 8080 I/O.

zabzonk 8 days ago

Well, I found it a bit hard on my Dec10-based emulator. I never got the memory-mapped stuff to work properly - I just mocked up some of the I/O instructions. But it was actually a spare-time project, intended to let my students do stuff like sorting, searching in strings, so I didn't feel too guilty. It had an assembler, debugger and other stuff. And it was portable - completely standard FORTRAN77!

zabzonk 8 days ago

And I was just thinking - wouldn't it be cool to write a Dec10 emulator on a modern CPU?

Actually, one of my programmer colleagues did try to buy our Dec10 when it was decommissioned, with all peripherals, and install it in his garage. Power supply and wife were major obstacles.