QUESTION 4 Consider a direct mapped cache of 64 KİB. The block size is 128 bytes. The number of bits in the cache index is 9 QUESTION 5 Consider the same cache in Question 4. Assume the memory address has 32 bits. The number of bits in the tag is 13 QUESTION 6 Consider the same cache in Question 4. What is the cache index for the memory address OXFA002020? Enter a decimal integer. QUESTION 7 Consider the same cache in Question 4. What is the smallest address that conflicts with address 1? Enter 5 hexadecimal digits representing the lower 20 bits of the address.

QUESTION 4 Consider a direct mapped cache of 64 KİB. The block size is 128 bytes. The number of bits in the cache index is 9 QUESTION 5 Consider the same cache in Question 4. Assume the memory address has 32 bits. The number of bits in the tag is 13 QUESTION 6 Consider the same cache in Question 4. What is the cache index for the memory address OXFA002020? Enter a decimal integer. QUESTION 7 Consider the same cache in Question 4. What is the smallest address that conflicts with address 1? Enter 5 hexadecimal digits representing the lower 20 bits of the address.

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter11: Operating Systems

Section: Chapter Questions

Problem 2VE

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A cache is set up with a block size of 32 words. There are 64 blocks in cache and set up to be 4-way set associative. You have byte address 0x8923. Show the word address, block address, tag, and index Show each access being filled in with a note of hit or miss. You are given word address and the access are: 0xff, 0x08, 0x22, 0x00, 0x39, 0xF3, 0x07, 0xc0.
Differentiate between caches that are totally associative and those that are directly mapped.
Q: A digital computer has a memory unit of 64k * 16 and a cache memory of 1k words. The cache uses direct mapping with a block size of 4 words. i) How many bits are there in the tag, index, block & words fields of the address formats. ii) How many bits are there in each word of cache? iii) How many blocks can the cache accommodate?
tn a Gwey number of nesber of cache block ip 256. Neember of blocky Set associative cache worde werds any equal to block sye tag bite cre four size fuhysicel memory
Suppose a computer using fully associative cache has 220220 words of main memory and a cache of 128 blocks, where each cache block contains 16 words. (a) How many blocks of main memory are there? (b) What is the format of a memory address as seen by the cache, that is, what are the sizes of the tag and word fields? (c) To which cache block will the memory reference 01D872_{16}01D872_{16} map?
What is the role of a cache that is completely associative?
Paging: Select all of the following statements that are true. Systems that use paging but do not support inverted page tables maintain at least one separate page table for each process. The frame table is a system-wide data structure. When paging is applied, the selected page size determines which part of a virtual address belongs to the page number and which to the offset. The page size may differ from the frame size. The Translation Look-aside Buffer (TLB) represents a page directory for all pages in the system. Paging is prone to internal fragmentation.
How does a cache function when it stores data in a wholly associative format?
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What dose Direct mapping? Used to store content and addresses of the memory word The RAM is used to store data and some of the data is stored in the Cache. The address space is divided into two parts index field and tag field. The tag field is used to store the tag field whereas the rest is stored in the main memory. Blocks of cache are grouped into sets, and the mapping allows a block of main memory to reside in any block of a specific set. Any block of Main memory can potentially reside in any cache block position. This is much more flexible mapping method.
Q: A set-associative cache has a block size of 256 bytes and a set size of 2. The cache can accommodate 32 KB. . The size of main memory is 256 KB. Design the cache structure and show how the processor’s addresses are interpreted. Note: this question is related from coal subject.