Consider the following RISC-V instructions: Loop: LD F1,0 (X3) ADD.D F2, F1,F4 MUL.D F1,F2,F6 ADD.D F1,F1,F5 ADD.D F7,F7,F1 ADDI X12,X12,-1 BNEZ X12, Loop ADDI X16,X16, 4 LD X3,0 (X16) Assume the initial value of X12 is 2. Please answer the following qåestion.

Computer Networking: A Top-Down Approach (7th Edition)
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Author:James Kurose, Keith Ross
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Chapter1: Computer Networks And The Internet
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+ 88
1. Consider the following RISC-V instructions:
Loop:
LD
F1,0 (X3)
ADD.D F2, F1,F4
MUL.D F1,F2, F6
Shot
25.50
ADD.D F1, F1,F5
ADD.D F7,F7, F1
Shot
ADDI X12, X12,-1
27.40
BNEZ
X12, Loop
ADDI
X16,X16,4
Shot
LD
X3,0 (X16)
11.05
Assume the initial value of X12 is 2. Please answer the following qåestion.
(1) Assuming that you are given a processor using Tomasulo algorithm for
Sha
instruction scheduling. The execution time and reservation stations for each
functional unit is listed as below:
Functional units
Execution time Reservation Stations
INT ALU
1
2
FP ADD
FP MUL
4 for Address Calculation, 3 for loads, 3 for stores
1
Memory Access
Transcribed Image Text:+ 88 1. Consider the following RISC-V instructions: Loop: LD F1,0 (X3) ADD.D F2, F1,F4 MUL.D F1,F2, F6 Shot 25.50 ADD.D F1, F1,F5 ADD.D F7,F7, F1 Shot ADDI X12, X12,-1 27.40 BNEZ X12, Loop ADDI X16,X16,4 Shot LD X3,0 (X16) 11.05 Assume the initial value of X12 is 2. Please answer the following qåestion. (1) Assuming that you are given a processor using Tomasulo algorithm for Sha instruction scheduling. The execution time and reservation stations for each functional unit is listed as below: Functional units Execution time Reservation Stations INT ALU 1 2 FP ADD FP MUL 4 for Address Calculation, 3 for loads, 3 for stores 1 Memory Access
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