Article View: comp.os.msdos.programmer
Article #7731Re: DMA memory->memory question
From: John A. Slagel
Date: Mon, 25 Jan 1993 15:47
Date: Mon, 25 Jan 1993 15:47
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1340 bytes
pjunold@daimi.aau.dk (Peter Joachim Unold) writes:
>Questions:
>1) Does memory->memory DMA, in the mainmemory work on all PCs?
No. Even if it did, the REP MOVSD is faster.
This was a topic of conversation a year ago. This was the conclusion
that was reached. There was one guy who knew what hardware needed
to be implemented... he said that technically, it should work, but
most motherboard manufacturers don't bother putting that circuitry
in because its not supported.
--
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John A. Slagel "My old man used to tell me, before he left this
j-slagel1@uiuc.edu shitty world, never chase buses or women- you
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Newsgroups: comp.os.msdos.programmer Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!sdd.hp.com!ux1.cso.uiuc.edu!news.cso.uiuc.edu!uxa.cso.uiuc.edu!jas37876 From: jas37876@uxa.cso.uiuc.edu (John A. Slagel) Subject: Re: DMA memory->memory question References: <1993Jan23.151648.24614@daimi.aau.dk> Message-ID: <C1F2Iq.4Iu@news.cso.uiuc.edu> Sender: usenet@news.cso.uiuc.edu (Net Noise owner) Organization: University of Illinois at Urbana Date: Mon, 25 Jan 1993 15:47:13 GMT Keywords: DMA Lines: 18