RISC vs. CISC EE303

RISC vs. CISC EE303 - RISC vs. CISC Course:EE-303 Engr. M....

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RISC vs. CISC Course:EE-303 Engr. M. Zahid Iqbal
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CISC C omplex I nstruction S et C omputer Large number of complex instructions Low level Facilitate the extensive manipulation of low- level computational elements and events such as memory , binary arithmetic , and addressing.
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CISC Examples Examples of CISC processors are the System/360(excluding the 'scientific' Model 44), VAX, PDP-11, Motorola 68000 family Intel x86 architecture based processors.
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Pro’s  Emphasis on hardware Includes multi-clock complex  instructions Memory-to-memory: "LOAD" and "STORE" incorporated in instructions Small code sizes, high cycles per second Transistors used for storing complex instructions
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Con’s That is, the incorporation of older instruction sets into new generations of processors tended to force growing complexity. Many specialized CISC instructions were not used frequently enough to justify their existence. Because each CISC command must be translated
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This note was uploaded on 11/10/2010 for the course CPED EE303 taught by Professor Zahid during the Spring '10 term at Presentation.

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RISC vs. CISC EE303 - RISC vs. CISC Course:EE-303 Engr. M....

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