Re: NetBSD-Mach?

[Jason Thorpe <thorpej%nas.nasa.gov@localhost>]

[ this is turning into a powerpc thread; let's please keep powerpc
  discussions on port-powerpc. ]

On Tue, 10 Dec 1996 14:50:53 -0500 (EST) 
 Tom Rini <trini%ntplx.net@localhost> wrote:

 > What about 601s w/ PCI?  My friend has a powercurve, any chance of
 > netbsd/powerpc workin on this?

The 601 is a different-enough chip to make it a little harder.  My
understanding of the 601 is that it was a "time to market" sort of
thing, and that the differences between the 601 to 603 or 604 are
analogous to the differences between the 68020 and the 68040 or 68060.

 > This would be the NuBus macs right?  Couldn't that code be ripped from the
 > mach kernel mklinux uses, or the linux server?

The NuBus Powermacs are not OFW.  But, you can re-use a large chunk of
the Hard Bits (locore, pmap, trap handling) from NetBSD/powerpc and
get code for the missing bits from Mach.  It's very unlikely that much
of the code you need will actually be in the MkLinux server.  The
u-kernel is what talks to the hardware, really.

Jason R. Thorpe                                       
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NASA Ames Research Center                               Home: 408.866.1912
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