What's the purpose of the LEA instruction?

assemblyx86-64x86x86-16
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Why does GCC use multiplication by a strange number in implementing integer division?

c#gccinteger-divisionassemblyx86-64
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Why doesn't GCC use partial registers?

cpu-architecturegccassemblyx86-64x86
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What considerations go into predicting latency for operations on modern superscalar processors and how can I calculate them by hand?

performancecpu-architectureassemblyx86-64latency
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