[Simh] Is it possible to simulate the first Vaxen I ever used?

Robert Armstrong bob at jfcl.com
Mon Mar 23 13:35:26 EDT 2020


> Timothe Litt <litt at ieee.org> wrote:
> KS10 ... The 8085 code is crammed into UV EPROMs.

  Was all of the KS CFE code in EPROM?  On the 730 only a small kernel of 8085 code (about 2K as I remember) was in ROM/EPROM and the rest of the 8085 memory was RAM.  The first thing the 8085 did at power on was to load the rest of the 8085 code from the TU58.  That made it possible to issue updates to the CFE code as well as the microcode.

Bob




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