Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!think!mintaka!mit-eddie!rutgers!att!cbnewsl!lbl
From: lbl@cbnewsl.ATT.COM (leslie.b.locklear)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Memory mapped files (Re: DMA in VM)
Summary: It's in there...
Message-ID: <3144@cbnewsl.ATT.COM>
Date: 4 Dec 89 18:08:57 GMT
References: <14059@grebyn.com> <2054@atanasoff.cs.iastate.edu> <14060@grebyn.com> <4657@sugar.hackercorp.com>
Organization: AT&T Bell Laboratories
Lines: 14

In article <4657@sugar.hackercorp.com>, peter@sugar.hackercorp.com (Peter da Silva) writes:
) In article <556@xdos.UUCP> doug@xdos.UUCP (Doug Merritt) writes:
) > As you probably know, other systems since then have also used it. And I've
) > heard that Unix 5.4 will support this feature, too.
) 
) I haven't heard that. I know SunOS has a 'mapped file' capability, but that's
) only for bitmapped devices. Mapped files are in Mach, though.
) 

System VR4.0 certainly has mapped files.  And SunOS 4.0.3 does also.  This is a
general mapped file facility, not for bitmapped devices only.

Barry Locklear
lbl@sf.att.com