A compiler designer is trying to decide between two code sequences for a particular machine. The hardware designers have supplied the following facts: Instruction class CPI of the instruction class A 1 B 3 C 4 For a particular high-level language, the compiler writer is considering two sequences that require the following instruction counts: Code sequence Instruction counts (in millions) A B C 1 2 1 2 2 4 3 1 a. What is the CPI for each code sequence? b. Which code sequence is faster? By how much
A compiler designer is trying to decide between two code sequences for a particular machine. The hardware designers have supplied the following facts: Instruction class CPI of the instruction class A 1 B 3 C 4 For a particular high-level language, the compiler writer is considering two sequences that require the following instruction counts: Code sequence Instruction counts (in millions) A B C 1 2 1 2 2 4 3 1 a. What is the CPI for each code sequence? b. Which code sequence is faster? By how much
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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A compiler designer is trying to decide between two code sequences for a particular machine. The hardware designers have supplied the following facts:
Instruction class
CPI of the instruction class
A
1
B
3
C
4
For a particular high-level language, the compiler writer is considering two sequences that require the following instruction counts:
Code sequence
Instruction counts (in millions)
A
B
C
1
2
1
2
2
4
3
1
a. What is the CPI for each code sequence?
b. Which code sequence is faster? By how much?
Transcribed Image Text:4. A compiler designer is trying to decide between
two code sequences for a particular machine. The
hardware designers have supplied the following
facts:
Instruction class
CPI of the instruction class
1
3
4
A
B
C
For a particular high-level language, the compiler
writer is considering two sequences that require the
following instruction counts:
Instruction counts (in millions)
Code sequence
B
1
3
A
2
4
C
2
1
1
2
a. What is the CPI for each code sequence?
b. Which code sequence is faster? By how much?
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