Given the following instruction and referring to the figure: addi $t0, $t1, 0x85E2 a. What are the following control signals? RegDst, ALUSrc, RegWrite, Zero, Branch, PCSrc, MemWrite, MemRead, MemtoReg b. Assume $t1 = 0x1E22, what are the two 32-bit inputs to the ALU. Write your answer in hex. IFAD ID/EX EX/MEM PCSrc MEM/WB

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
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Question
Given the following instruction and referring to the figure:
addi $t0,$t1, 0x85E2
a. What are the following control signals?
RegDst, ALUSrc, RegWrite, Zero, Branch, PCSrc, MemWrite, MemRead, MemtoReg
b. Assume $t1 = 0x1E22, what are the two 32-bit inputs to the ALU. Write your answer in hex.
LO-B
PC
Address
Add
Instruction
memory
IFAD
Read
register 1
Read
register 2
Write
data
RegWrite
Write
register
Instruction
(15-0)
Instruction
(20-16)
Instruction
(15-11)
Registers Read
data 2
Read
data 1
16
Sign- 32
extend
ID/EX
Shift
left 2
ALUSre
AG
ALU
control
RegDat
result
ALUOP
Zero
Add ALU
result
EX/MEM
Branch
MemWrite
Address
PCSre
Write
data
Data
memory
MemRead
Read
data
MEM/WB
MemloFleg
Transcribed Image Text:Given the following instruction and referring to the figure: addi $t0,$t1, 0x85E2 a. What are the following control signals? RegDst, ALUSrc, RegWrite, Zero, Branch, PCSrc, MemWrite, MemRead, MemtoReg b. Assume $t1 = 0x1E22, what are the two 32-bit inputs to the ALU. Write your answer in hex. LO-B PC Address Add Instruction memory IFAD Read register 1 Read register 2 Write data RegWrite Write register Instruction (15-0) Instruction (20-16) Instruction (15-11) Registers Read data 2 Read data 1 16 Sign- 32 extend ID/EX Shift left 2 ALUSre AG ALU control RegDat result ALUOP Zero Add ALU result EX/MEM Branch MemWrite Address PCSre Write data Data memory MemRead Read data MEM/WB MemloFleg
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