University of Southern CaliforniaViterbi School of EngineeringEE357Basic Organization of Computer SystemsMIPS ISAReferences: 1)Textbook2)Mk R d k’lidiShahin Nazarian Fall 2009Mark Redekopp’s slide series
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Components of an ISA1.Data and Address Size•8-, 16-, 32-, 64-bit2.Which instructions does the processor support•SUBtract instruc. vs. NEGate + ADD instrucs.NEGateADD instrucs.3.Registers accessible to the instructions•Faster than accessing data from memory 4Addin M d4.Addressing Modes•How instructions can specify location of data operands5.Length and format of instructions•How the operation and operands are represented with 1’s and 0’sShahin Nazarian/EE357/Fall 20093