Intel(R) Architecture Optimization ManualThe Intel386™
Architecture Family, including the Intel386, Intel486™, PentiumŪ, Pentium
Pro and Pentium II processors, represents a series of compatible
processors. The newer members of the family are capable of executing any
binaries created for members of previous generations. For example, any
existing 8086/8088, 80286, Intel386 (DX or SX), and Intel486 processor
applications will execute on the Pentium, Pentium Pro and Pentium II
processors without any modification or recompilation. However, there are
certain code optimization techniques which will make applications execute
faster on a specific member of the family with little or no impact on the
performance of other members. Most of these optimizations deal with
instruction sequence selection and instruction reordering to complement
the processor micro-architecture.
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