
In this chapter, you will learn
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The impact that 80286 made to the realm
of PCs.
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The major changes that the 80386
architecture offered.
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The programming enhancements of 80386.
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The features of PVAM and the concept of
virtual memory.
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The mechanism of address translation in
the protected mode.
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The importance and implementation of
pro tection mechanisms in the 80386.
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The issues and methods of task switching.
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The use of the interrupt descriptor table and
exceptions of 80386.
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The features of 80486 which are an
enhanced set of the ’386 features.
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The idea of burst mode data transfers for
both 80486 and Pentium.
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Why data alignment is impor ...