XXDP on PDP-11/03

Paul Koning paulkoning at comcast.net
Wed Aug 14 08:34:38 CDT 2019

> On Aug 14, 2019, at 7:31 AM, Noel Chiappa via cctalk <cctalk at classiccmp.org> wrote:
>> From: Jerry Weiss
>> I turned BEVENT off and it boots successfully. I am not immediately
>> sure why this is necessary.
> If an LTC interrupt happens before the OS has set up the LTC vector, etc,
> hilarity ensues.
> E.g. the LTC has to be turned off before UNIX V6 will boot on an -11/23:
>  http://gunkies.org/wiki/Running_UNIX_V6_on_an_-11/23

That's weird.  Isn't the interrupt disabled by RESET? 


More information about the cctalk mailing list