Re: DMA in VM

Article View: comp.sys.amiga.tech

Article #2438

Back to comp.sys.amiga.tech Previous Next

#2438

From: Leonard Norrgard
Date: Fri, 01 Dec 1989 01:02

17 lines
1172 bytes

>>	"I so glad I bought the virtual memory addon for my
>>	Mac.  Now I'm gonna make a *really* big RAM disk with it."
>>
>Laugh if you like. In VAX/VMS, every part of a process is virtual
>memory, including any IO buffering. The IO system takes care of ensuring
>that such pages are resident and locked for the duration of a DMA IO
>transfer.

  Not necessarily. But unless you have done systems programming under
VAX/VMS, it is unlikely that you ever have seen anything else than
virtual memory.

-- Leonard	"Par CU is"


--
Leonard Norrgard, vinsci@ra.abo.fi, vinsci@finabo.bitnet, +358-21-6375762, EET.

Technical Details

Message-ID: <VINSCI.89Dec1030202@ra.abo.fi>

Path:

arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!cica!tut.cis.ohio-state.edu!ucbvax!bloom-beacon!eru!luth!sunic!tut!ra!vinsci

References: <14059@grebyn.com> <2054@atanasoff.cs.iastate.edu> <14060@grebyn.com>

Show Full Headers

Complete Article Headers

Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!cica!tut.cis.ohio-state.edu!ucbvax!bloom-beacon!eru!luth!sunic!tut!ra!vinsci
From: vinsci@ra.abo.fi (Leonard Norrgard)
Newsgroups: comp.sys.amiga.tech
Subject: Re: DMA in VM
Message-ID: <VINSCI.89Dec1030202@ra.abo.fi>
Date: 1 Dec 89 01:02:02 GMT
References: <14059@grebyn.com> <2054@atanasoff.cs.iastate.edu> <14060@grebyn.com>
Sender: vinsci@ra.abo.fi
Organization: Computer Centre, Abo Akademi University
Lines: 16
In-reply-to: ckp@grebyn.com's message of 30 Nov 89 17:31:37 GMT

Reply to Parent Message