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<p class=MsoNormal> I notice that the PDP-11 (and, I would assume, the MicroVAX)
version of simh is missing support for the RA70 and 73 drives, although it
supports the RA71/72, all RA8x, and RA9x drives.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal> After a look at the source code, it appears that the
only reason the RA70 and 73 aren’t supported is because some information
about the drive geometry, notably the size of the RCT, isn’t known.
Am I right about that? Is that all that’s missing?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal> As it happens, I have a PDP-11 with two working RA70
drives. Is there some XXDP diagnostic that will tell me the RCT
size? If there is, I’ll be happy to run it and report the results.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal> Unfortunately I don’t have a RA73, but if
somebody wants to give me one I’d be happy to do that experiment too :-)<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thanks,<o:p></o:p></p>
<p class=MsoNormal>Bob Armstrong<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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