[Simh] 4.3BSD Quasijarus0c on the VAX-11/730

[Mark Pizzolato - Info Comm]

On Jun 30, 2014 11:58 PM, Cory Smelosky <b4 at gewt.net> wrote:
>
> On Tue, 1 Jul 2014, Christian Gauger-Cosgrove wrote:
>
> > The same happens when attempting to run the standalone boot off the
> > console floppy. However, it only allows one to specify the device if
> > and only if you have tried to run the standalone copy earlier, and
> > then attempted to enter a device into copy, otherwise it always starts
> > up with:
> > Boot
> > : /vmunix
> > With no ability to break into it and change it.
> >
>
> I _think_ something involving r5 would allow you to override that.  How to
> deposit a 1 in to r5 I can't tell you off-band, though.

When necessary to change the R5 value, is is done on the simh 730, 750, 780 and 8600 boot commands with:

     sim> boot <Dev> /r5:hexval

- Mark
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