[Simh] Re: 11/780 simulation
Tim Shoppa
shoppa at trailing-edge.com
Tue Jun 15 16:42:27 EDT 2004
>> - the CPU must support all the VAX instructions, not just the VAX subset. That
>> includes decimal, obsolete character string, H_floating, and EDITPC (argh!)
> Compatibility mode?
For running VMS V5.0 or later, I don't think you'd need compatibility
mode.
But (in my limited view) the main reason to want to simulate an 11/780
would be to run VMS V1.0, and in that case compatibility mode would
be a ncessity. Several fundamental VMS components ran in compatibility
mode up through V4.something.
Tim.
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