DMA memory->memory question

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#7717

From: Peter Joachim Unold
Date: Sat, 23 Jan 1993 15:16

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Questions:

1) Does memory->memory DMA, in the mainmemory work on all PCs? 

2) Using a program I found in the now dead >The Assembly Language Magazine<
   I was able to move a constant value into the memory on my VGA card. The
   program was supposed to be able to copy, but it only moved a constant
   into the memory. This effect could be very useful for clearing the screen.
   But will it also work with VGA cards from other vendors?(mine is a tseng3k).
   
 -hope some hardware wizards will answer
    Peter Unold - pjunold@daimi.aau.dk

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Message-ID: <1993Jan23.151648.24614@daimi.aau.dk>

Path: arc1-ca.pugleaf.net!sparky!uunet!mcsun!sunic!dkuug!daimi!pjunold

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Newsgroups: comp.os.msdos.programmer
Path: arc1-ca.pugleaf.net!sparky!uunet!mcsun!sunic!dkuug!daimi!pjunold
From: pjunold@daimi.aau.dk (Peter Joachim Unold)
Subject: DMA memory->memory question
Message-ID: <1993Jan23.151648.24614@daimi.aau.dk>
Summary: DMA
Keywords: DMA
Sender: pjunold@daimi.aau.dk (Peter Joachim Unold)
Organization: DAIMI: Computer Science Department, Aarhus University, Denmark
Date: Sat, 23 Jan 93 15:16:48 GMT
Lines: 12