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From: rw@rwsys.wimsey.bc.ca (Randy Wright)
Newsgroups: comp.os.386bsd.development,comp.unix.bsd
Distribution: world
Subject: Re: Late comments on the DMA problem.
References: <1994Jan24.103912.8591@cc.usu.edu>
Message-ID: <940131281@rwsys.wimsey.bc.ca>
Organization: RW development, Surrey BC, Canada
Date: Mon, 31 Jan 94 01:37:37 PST
Lines: 24
ivie@cc.usu.edu () writes:
> In article <jmonroyCK2t6n.1pM@netcom.com>, jmonroy@netcom.com (Jesus Monroy Jr) writes:
> > ivie@cc.usu.edu wrote:
> > : Since you can't get an interrupt to tell you that the DMA controller has
> > : finished doing a page, you can't reload the DMA addresses when the end of
> > : a page is reached.
> > :
> > please define page.
> > your message is ambiguous.
>
> Page = virtual memory page. I'm most familiar with the VAX, where a page
> is 512 bytes; I don't know how big it is on these newfangled 386 thingies.
> --
> ----------------+------------------------------------------------------
> Roger Ivie | Don't think of it as a 'new' computer, think of it as
> ivie@cc.usu.edu | 'obsolete-ready'
>
386 virtual memory paging deals in 4-kb pages.
--Randy
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rw@rwsys.wimsey.bc.ca (Randy Wright) finger rw@192.197.249.158
ICBM address = 49d 12m 5s N 122d 51m 49s W
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