PDP-11/45 RSTS/E boot problem
Noel Chiappa
jnc at mercury.lcs.mit.edu
Wed Feb 6 21:11:29 CST 2019
> From: Jon Elson
> I'm thinking it is bad memory. ... I think it is just a bad memory chip
Nothing so simple, I'm afraid! The memory actually contains:
PA:171600: 016162 004767 000224 000414 016700 016152 016702 016144
and it's _supposed_ to be holding:
PA:171600: 110024 010400 000167 000016 010500 010605 010446 010346
This together with Fritz's discovery of that first 'bad memory' pattern _elsewhere_
in the binary for the command makes it look pretty likely that some sort of other
error has wound up with stuff being put in the wrong location.
Noel
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