The Previous Chapter
This chapter provided a detailed description Virtual 8086 Mode (VM86 Mode). This description is directly applicable to all subsequent IA32 processors. VM86 Mode was enhanced starting with the advent of the Pentium® processor and a detailed description of those enhancements can be found in “VM86 Extensions” on page 490.
This Chapter
This chapter provides a detailed description of the Debug register set. This description is directly applicable to all subsequent IA32 processors. This feature was enhanced starting with the advent of the Pentium® processor and a detailed description of the enhancement can be found in “Debug Extension” on page 497.
The Next Chapter
The next chapter is for those who feel the need for a primer on cache memory. For those who don't feel the need for it, please move on to the next chapter. It occupies this place in the book because the next two chapters cover the 486 processor, the first IA32 processor to incorporate an integrated cache.
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