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Re: NetBSD in SIMH vax with 512 MB RAM



Den 2023-03-07 kl. 18:53, skrev Dave McGuire:
On 3/7/23 12:23, Johnny Billquist wrote:
The P0/P1/S0/S1 space is in virtual space.

The 512M is physical memory. Physical address space is a total of just 1G, with half dedicated to memory, and half to I/O space.

So 512M is the absolute maximum the machines can have. And there is some problem with this in NetBSD.

  This must be model-specific, somehow?
The I/O space starts at 512MB.

-- R


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