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To illustrate what difference a vector processor can make as compared to a traditional CPU, consider a hypothetical RISC machine with these lines of code ; Hypothetical RISC machine ; add 10 numbers in a to 10 numbers in b, storing results in c ; assume a, b, and c are memory locations   in their respective registers move $10, count ; count := 10 loop: load r1, a load r2, b add r3,r1,r2 ;r3:=r1+r2 store r3, c add a,a,$4 ;moveon add b,b,$4

To illustrate what difference a vector processor can make as compared to a traditional CPU, consider a hypothetical RISC machine with these lines of code ; Hypothetical RISC machine ; add 10 numbers in a to 10 numbers in b, storing results in c ; assume a, b, and c are memory locations   in their respective registers move $10, count ; count := 10 loop: load r1, a load r2, b add r3,r1,r2 ;r3:=r1+r2 store r3, c add a,a,$4 ;moveon add b,b,$4

Computer Networking: A Top-Down Approach (7th Edition)
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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c)  To illustrate what difference a vector processor can make as compared to a traditional CPU, consider a hypothetical RISC machine with these lines of code

; Hypothetical RISC machine
; add 10 numbers in a to 10 numbers in b, storing results in c
; assume a, b, and c are memory locations

 

in their respective registers move $10, count ; count := 10

loop:

load r1, a
load r2, b
add r3,r1,r2 ;r3:=r1+r2
store r3, c
add a,a,$4 ;moveon
add b,b,$4
add c,c,$4
dec count ; decrement
jnez count, loop ; loop back if count is not yet 0 ret

How would a Cray-style vector machine process this information?

 

d.) State three advantages in the vector style approach

 

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