3) A computer has 8 GByte of memory with 64 bit word sizes. Each block of memory stores 16 words. The computer has a direct-mapped cache of 128 blocks. The computer uses word-level addressing which means that the offset refers to individual words (not bytes) in the block. a) What is the address format? Give the total number of bits needed and how the bits are distributed between the tag, index (which block) and offset. b) If we change the cache to a 4-way set associative cache, what would be the address format?

Systems Architecture
7th Edition
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Stephen D. Burd
Chapter6: System Integration And Performance
Section: Chapter Questions
Problem 4VE
icon
Related questions
Question

Check the screenshot to solve this question on memory hierarchies in computer structures ;

3)
A computer has 8 GByte of memory with 64 bit word sizes. Each block of memory
stores 16 words. The computer has a direct-mapped cache of 128 blocks. The computer
uses word-level addressing which means that the offset refers to individual words (not
bytes) in the block.
a)
What is the address format? Give the total number of bits needed and how the
bits are distributed between the tag, index (which block) and offset.
b)
If we change the cache to a 4-way set associative cache, what would be the
address format?
Transcribed Image Text:3) A computer has 8 GByte of memory with 64 bit word sizes. Each block of memory stores 16 words. The computer has a direct-mapped cache of 128 blocks. The computer uses word-level addressing which means that the offset refers to individual words (not bytes) in the block. a) What is the address format? Give the total number of bits needed and how the bits are distributed between the tag, index (which block) and offset. b) If we change the cache to a 4-way set associative cache, what would be the address format?
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Systems Architecture
Systems Architecture
Computer Science
ISBN:
9781305080195
Author:
Stephen D. Burd
Publisher:
Cengage Learning