MICROARCHITECTURAL TECHNIQUES OF ADVANCED PROCESSORS 15-37
current state of the art, P6 has been chosen here to show a direct implementation of most
of the concepts discussed in this chapter. Processors with more advanced microarchitec-
tures are discussed in Chapter 17.
15.3|Pentium Pro (P6) Architecture
This is an IA-32 architecture, which means that the internal registers are 32 bits long. It
has a 12-stage superpipelined implementation, whose efficiency is 33% higher than that
of Pentium. This directly gives the ability to operate at higher clock frequencies com-
pared to its predecessor. P6 is frequently designated as a CISC processor with ...
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