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echo: os2prog
to: Richard Drapeau
from: Udo van den Heuvel
date: 1996-04-21 11:52:48
subject: DMA?

Hello Richard!

 UH>> Where can I find info on how to use the DMA chips of my PC (with
 UH>> e.g. VP)? Please help!
 RD>     Try the file RMVIEW to look all your devices or others if sherings in
 RD> an OS prompt.

OK, but how can I safely let the chips write to a buffer, somewhere below
the 16 meg mark? How do I get a buffer below the 16 meg mark?
When I set up the DMA chips to write to a buffer, how does this work when
another task is being serviced?
Is the memory protection a problem?
What other caveats are to be taken care of? (this is OS/2, not MS-DOS)

Please give some info!

Greetz,
        Udo

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