Article View: comp.arch
Article #20682Re: looking for >32-bit address space
From: aglew
Date: Thu, 06 Apr 1989 21:10
Date: Thu, 06 Apr 1989 21:10
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1319 bytes
>>Are there any micros or chipsets out there that support an address space >>larger than 32 bits? The current trend in micros seems to be toward 64-bit >>data paths but only 32-bit address paths. In a large-scale parallel >>processor, this starts to feel a bit like a PDP-11. > >It was gonna come around sooner or later. HP saw this coming five years ago >when we developed our HP-PA (Precision arcitecture "RISC"). This gives you: > >32 bit virtual and 32 bit physical addressing : Level 0 compliance. >48 bit virtual and 32 bit physical addressing : Level 1 compliance. >64 bit virtual and 32 bit physical addressing : Level 2 compliance. Ummh, correct me please, but I thought that HP's machine provided segments, with 32 bits of maximum segment size, and the extra bits basically accessible by segment base registers. (I thought of the HP3000 when I read about it).
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!tank!uxc!uxc.cso.uiuc.edu!mcdurb!aglew From: aglew@mcdurb.Urbana.Gould.COM Newsgroups: comp.arch Subject: Re: looking for >32-bit address space Message-ID: <28200297@mcdurb> Date: 6 Apr 89 21:10:00 GMT References: <1032@myrias.UUCP> Lines: 18 Nf-ID: #R:myrias.UUCP:1032:mcdurb:28200297:000:876 Nf-From: mcdurb.Urbana.Gould.COM!aglew Apr 6 16:10:00 1989