PDP-8 diagnostics SR settings?
bqt at update.uu.se
Sat Sep 5 11:24:30 CDT 2015
On 2015-09-05 18:20, Charles wrote:
> I got lucky with a little trial & error. Setting the MSB of the SR (i.e.
> 7000) causes AJRLIA to report an error but then keep testing.
> Not sure if this works for all the AJ**** diagnostics but hopefully DEC
> had some kind of pseudo-standard for this...
Nit picking: The MSB would be 4000. :-)
But yes, DEC often did use similar bits for similar purposes in
different diagnostics, especially if they are for the same device. So
there is a fair chance that you'll get the same effect from other
diagnostics with the same switch register settings.
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