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Pentium block diagram

Spring 2004. Pentium structure. The integer pipelines. Two pipelines called u and vFive stages per pipelineInstruction fetchInstruction decoding 1Instruction decoding 2ExecutionRegister writebackFunctionalityU can do all instructions including emulating complex instructions from microcodeV can do only simple integer instructions and the FXCH.

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Pentium block diagram

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    1. Spring 2004 Pentium structure Pentium block diagram Data path sizes Registers – 32 Internal paths – 128 to 256 Cache line size – 32 bytes Cache size – 8 Kb each Data bus - 64

    2. Spring 2004 Pentium structure The integer pipelines Two pipelines – called u and v Five stages per pipeline Instruction fetch Instruction decoding 1 Instruction decoding 2 Execution Register writeback Functionality U can do all instructions – including emulating complex instructions from microcode V can do only simple integer instructions and the FXCH

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