Re: About support for rtVAX300

["Michael L. Hitch" <mhitch%lightning.msu.montana.edu@localhost>]

On Fri, 11 Jan 2013, Johnny Billquist wrote:

> I actually checked the code, since I was thinking the same thing, but I think 
> not. The code at the end of vax_map_physmem looks like this:
>
>        return addr | (phys & VAX_PGOFSET);

  Oops - you're right [and I remembered it after I replied].  My vax stuff 
is a bit rusty at the momement.

  But as you point out, it will try to write a 32-bit value in the last 16 
bits of the mapped page, and the first 16 bits of the next page, which is 
likely unmapped.

Mike

--
Michael L. Hitch                        mhitch%montana.edu@localhost
Computer Consultant
Information Technology Center
Montana State University        Bozeman, MT     USA