July 2004
Intermediate to advanced
1744 pages
35h 3m
English
Content preview from The Unabridged Pentium 4 IA32 Processor GenealogyBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Enabling Paging
The IA32 processor's Paging Unit is only enabled by an OS that makes use of paging (virtually all of today's OS's support paging). Before enabling the Paging Unit, the OS programmer must create a minimum of two tables in memory:
One is the master directory (the Page Directory). Each entry in the Page Directory points to a Page Table, or to the Page Table's location on a mass storage device.
The other is a Page Table. Each entry in a Page Table points to a physical page in memory, or to the page's location on a mass storage device.
Each Page Table identifies the physical location of the 1024d pages that comprise the related page group, each page containing 4KB of information (in other words, a Page Table tracks the current location ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.