3) Suppose we have a computer that uses a memory address word size of 8 bits. This computer has a 16- byte cache with 4 bytes per block. The computer accesses a number of memory locations throughout the course of running a program. Suppose this computer uses direct-mapped cache. The format of a memory address as seen by the cache is shown below: Tag 4 bits Block 2 bits Offset 2 bits The system accesses memory addresses in this exact order: 0x6E, 0xB9, 0x17, 0xE0, 0x4E, 0x4F, 0x50, 0x91, 0xA8, 0xA9, 0xAB, 0xAD, 0x93, and 0x94. Fill out the following tables: a) Address Hit Reference or Miss Comments b) Show the final contents of cache for direct addressing: Block Cache Contents Tag (represented by address)
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- 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?Suppose a computer using direct mapped cache has 232232 words of main memory and a cache of 1024 blocks, where each cache block contains 32 words. How many blocks of main memory are there? What is the format of a memory address as seen by the cache, that is, what are the sizes of the tag, block, and word fields? To which cache block will the memory reference 000063FA16 map?Suppose a computer using set associative cache has 216 words of main memory and a cache of 128 blocks, and each cache block contains 8 words. If this cache is 2-way set associative, what is the format of a memory address as seen by the cache, that is, what are the sizes of the tag, set, and offset fields?
- Suppose a computer using direct mapped cache has 232 words of main memory, and a cache of 1024 blocks, where each cache block contains 32 words. How many blocks of main memory are there? What is the format of a memory address as seen by the cache, i.e., what are the sizes of the tag, block, and offset fields? To which cache block will the memory reference 0003101A16 map?Suppose a computer using fully associative cache has 224 words of main memory and a cache of 512 blocks, where each cache block contains 16 words. How many blocks of main memory are there? What is the format of a memory address as seen by the cache, i.e., what are the sizes of the tag and offset fields? To which cache block will the memory reference 17042416 map?Suppose a computer using fully associative cache has 4G bytes of byte-addressable main memory and a cache of 512 blocks, where each cache block contains 128 bytes. a) How many blocks of main memory are there? b) What is the format of a memory address as seen by the cache, i.e., what are the sizes of the tag and offset fields? c) To which cache block will the memory address 0x018072 map?
- Memory Hierarchy and Cache Suppose that we have a computer that uses a memory address of 12-bits. This computer has a 64-byte cache with 16 bytes per frame. The computer accesses a number of memory locations throughout the course of a running program. Suppose this computer uses direct-mapped cache. The system accesses the following memory addresses (given in hex) in this exact order: F2E, A17, 2E0, 44E, 34F, 341, B50, B58 a. What is the hit ratio for the memory reference sequence given above? b. Show the content of each cache frame following each memory reference (frame content to be shown as tag +frame index) c.If we keep the same cache size and the same frame size but switch to a 2-way set associative cache mapping scheme. Given the memory address reference 555, indicate where we would look in the cache to find this data. Indicate which fields will be used to find the exact location?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.Computer Science Consider a direct-mapped cache with 8 lines, each holding 16 bytes of data. The cache is byte-addressable and the main memory consists of 64 KB, which is also byte-addressable. Assume that a program reads 16KB of memory sequentially. Answer the following questions:a) How many bits are required for the tag, index, and offset fields of a cache address?b) What is the cache size in bytes?c) What is the block size in bytes?d) What is the total number of blocks in main memory?e) How many cache hits and misses will occur for the program, assuming that the cache is initially empty?f) What is the hit ratio?g) Give an example virtual address (in BINARY) that will be placed in cache line 5.
- Suppose a computer using fully associative cache has 224 words of main memory and a cache of 512 blocks, where each cache block contains 16 words. What is the format of a memory address as seen by the cache, i.e., what are the sizes of the tag, block, and offset fields?Consider a byte-addressable computer with 32-bit addresses, a cache capable of storing a total of 64K bytes of data, and cache blocks of size 128 bytes. If the computer uses direct mapping, the format of the memory address is as follows: bits for the tag field, bits for the cache block number, and bits for the block offset.Suppose a computer using direct-mapped cache has 232 bytes of byte-addressable main memory and a cache of 1024 blocks, where each cache block contains 32 bytes.Q.) What is the format of a memory address as seen by the cache; that is, what are the sizes of the tag, block, and offset fields?