> On Sat, 8 Jun 2002, Anders Magnusson wrote:
> 
> > > Out of curiousity, which PDP-10 models will be able to theoretically
> > > support with the NetBSD/pdp10 port?
> >
> > A PDP10 CPU normally have an address space of only 18 bits, which is
> > not enough to run something useable in. But the KL10-E have an "extended"
> > mode which give it the possibility to use 30 bit addressing, though
> > only 23 bits are used. The KL10-E were normally available in the
> > 2060 and 2065 systems.
> 
> With the addressing, is that 23-bits of addressing to 36-bit words or
> 23-bits of addressing to 9-bit bytes?
> 
23-bits of addressing to 36-bit words.

> > I've spent some time reading about how the memory management works
> > and this looks like a fun project :-)
> 
> Yes indeed.  I'm most curious to see precisely what breaks in the
> NetBSD code.
> 
It may be needed to have -mchar-bytesize=8, at least from the beginning.
I'm not sure how much depends on 8-bit chars in the kernel.

-- Ragge