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- Newsgroups: comp.os.msdos.programmer
- Path: 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
-
- 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
-