K12MIT on PDP-12
cz at alembic.crystel.com
Wed Nov 24 03:55:19 CST 2021
Do you have a running pdp12?
On 11/24/2021 4:47 AM, Christian Corti via cctalk wrote:
> So, with the help of you here, I was able to create OS/8 LINCtapes and
> to run SerialDisk. Everything runs very fine.
> Now comes the next thing: I want to have K12MIT, and it is no problem to
> compile or load the program.
> *But*: When I start K12MIT I don't get the prompt. I see the welcome
> message, and it correctly identifies the machine as a PDP-12, but that's
> it. As I've found out it apparently overwrites its code, the processor
> is looping around address 3600-3620. Examining the memory reveals that
> the code at 3600 has been overwritten with junk. So it's clear that it
> won't run anymore. What happens? Was anyone else able to run K12MIT on a
> BTW the same binary runs fine on a PDP-8, be it a real machine or SIMH.
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