Instruction: Interpretation: Reg[rd] Reg[rs1] AND Reg[rs2] a. What are the values of control signals generated by the control in the Figure below for this instruction? b. Which resources (blocks) perform a useful function for this instruction? c. Which resources (blocks) produce no output for this instruction? Which resources produce output that is not used?

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
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Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Building a Datapath
[1.1] Consider the following instruction:
Instruction:
Interpretation:
Reg[rd] Reg[rs1] AND Reg[rs2]
a. What are the values of control signals generated by the control in the Figure below for this instruction?
b. Which resources (blocks) perform a useful function for this instruction?
c. Which resources (blocks) produce no output for this instruction? Which resources produce output that is
not used?
Instruction
Read
register 1
Read
register 2
Registers Read
data 2
Write
register
Write
data
RegWrite
Read
data 1
a. or rd, rs1, rs2
b. sub rd, rsl, rs2
c. lw rd, offset (rs1)
Imm
Gen
ALUSrc
ALU operation
Zero
ALU ALU
result
Address
Write
data
MemWrite
Read
data
Data
memory
MemtoReg
MemRead
Transcribed Image Text:Building a Datapath [1.1] Consider the following instruction: Instruction: Interpretation: Reg[rd] Reg[rs1] AND Reg[rs2] a. What are the values of control signals generated by the control in the Figure below for this instruction? b. Which resources (blocks) perform a useful function for this instruction? c. Which resources (blocks) produce no output for this instruction? Which resources produce output that is not used? Instruction Read register 1 Read register 2 Registers Read data 2 Write register Write data RegWrite Read data 1 a. or rd, rs1, rs2 b. sub rd, rsl, rs2 c. lw rd, offset (rs1) Imm Gen ALUSrc ALU operation Zero ALU ALU result Address Write data MemWrite Read data Data memory MemtoReg MemRead
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