Newbie question

33 views

Skip to first unread message

Andrew Barron

unread,

Jul 24, 2026, 8:58:17 PMJul 24

to [PiDP-1]

Hi all. I an really enjoying the PiDP1.

When I use pdp1control start with the sense switches set, I get the expected result. It loads the tape. However, if I try pdp1control start 2 or one of the other Octal options it does not mount a tape. It selects the 0 option and complains that there is no /bootcfg/cfg.0 file.

I added a cfg0 file and set it to Blinky so that a 0 boot mounts the Blinky tape. But it still wont accept other octal numbers.

I know this is a first world program and I can easily just load the tape. But, I wondered if this was a deliberate change or if there is a quick fix?

Thanks AndrewB

Bill E

unread,

Jul 24, 2026, 9:10:54 PMJul 24

to [PiDP-1]

I've always had issues with that, but I haven''t looked into it, mostly because I just use it to start things up then I use the load-tape icon. BTW, there was an issue in the emulator itself that prevented the use of the web and icon-based tape loader together, the first one to run held the port forever. I fixed that a while back, you can now freely mix the web and icon loader paths.