Re: 16 vs. 32 bit Re: BOOK: OS/2 Warp Unleashed, 4th Edition cancelled

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Article #4593

#4593

From: Kevin R. Handlin
Date: Sat, 23 Aug 1997 00:00

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> Even this isn't correct. The I386 and successors implement 32-bit offsets:
>     forget off-hand the number of "address" bits in the selector
>     registers, but I think, again without checking as the point's not
>     particularly imprtant here, that the i386 can address 48 Gb of
>     physical memory (but it may well be 48 GFb virtual memory and a lesser
>     amount of physical).

It's 4 Gb physical, 64Tb (that's Terabytes) virtual. However, OS/2
uses a 4Gb segment model and maps the stack, code, and data spaces
to a single range of linear addresses, giving OS/2 a flat 32bit
memory addressing model.

Later,

	Kevin

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From: "Kevin R. Handlin" <khandlin@iwaynet.net>
Subject: Re: 16 vs. 32 bit Re: BOOK: OS/2 Warp Unleashed, 4th Edition cancelled
Date: 1997/08/23
Message-ID: <33FF616B.4F3@iwaynet.net>
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