Suppose you could build a CPU where the clock cycle time was different for each instruction. What
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Suppose you could build a CPU where the clock cycle time was different for each instruction. What would the speedup of this new CPU be over the CPU presented in Figure 4.21 given the instruction mix below?
Figure 4.21
Transcribed Image Text:
PC Add Read address Instruction [31-0] Instruction [31-26] Instruction [25-21] Instruction [20-16] Instruction Instruction [15-11] memory Control Instruction [15-0] RegDs! Branch MemRead MemtoReg ALUOP MemWrite ALUSrc RegWrite Read register 1 Read data 1 Read register 2 Write Read register data 2 Write data Registers 16 Sign- extend 32 Instruction (5-0) Shift left 2 Max. Add ALU control ALU ALU result Zero ALU result (。 MUX- C ọ Address Read data Write Data data memory Max,
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Related Book For
Computer Organization And Design MIPS Edition The Hardware/Software Interface
ISBN: 9780128201091
6th Edition
Authors: David A. Patterson, John L. Hennessy
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