Computer science

Problem #

3

: Based on the multi

-

cycle datapath and control diagram shown in the appendix data sheet, answer following questions:

[2

\ufeffpts

]

The table below shows the action taken during the instruction decode and register Fetch step step in the multi

-

cycle Datapath and control. Fill in the table below with the correct values of the control signals in this step.

os:

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Homework

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02 / 06 / 20

𝐴 =

Reg

[𝐼 𝑅 [25 - 21]]

𝐵 =

Reg

[𝐼 𝑅 [20 - 16]]

;

ALUOut

=

\ufeffPC sign

-

extend

(𝐼 𝑅 [15 - 0]) < < 2

;

PCWrite

IorD

MemRead

MemWrite

IRWrite

PCsource

ALUOp

ALUSrcB

ALUSrcA

ReqWrite

Write the action

(

sequence of operations

)

\ufeffthat will be carried out in the instruction fetch step for all type of instructions.

Problem #

4

: Draw a structure diagram of an

8 -

way set associative cache.

[2

pts

]

Answer