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Answer any 2 or 3 question among all
![1) Consider a 32-bit virtual memory system with these characteristics:
• 32 KB frames
●
64-bit page table entries
a) Draw the virtual address format, including field names and field locations.
b) How large (in bytes) is each Page Table?
c) How many bits of the virtual address are used to hold the Byte Offset?
d) How many bits of the virtual address are used to hold the Page #?
e) How many bits of the virtual address are used to hold the page #?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F42e7721b-59ec-450c-9819-5ecfd698503a%2F55b2944b-a357-4826-98d0-486080a38efa%2F6ssqlt8_processed.png&w=3840&q=75)
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- A digital computer has a memory unit of 64K X 16 and a cache memory of 1K words. The cache uses direct mapping with a block size of four words.i) How many bits are there in the tag, index, block and word fields of the address format?ii) How many bits are there in each word of cache, and how are they divided into functions? Include a valid bit.iii) How many blocks can the cache accommodate?Suppose a computer using fully associative cache has 216 bytes of byte-addressable main memory and a cache of 64 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 and offset fields?Suppose a computer using fully associative cache has 224 bytes of byte-addressable main memory and a cache of 128 blocks, where each block contains 64 bytes.Q.) What is the format of a memory address as seen by cache; that is, what are the sizes of the tag and offset fields?
- 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?Suppose a computer using direct mapped cache has 2^24 bytes of byte- addressable main memory and a cache size of 64K bytes, and each cache block contains 32 bytes. (Note: 64K = 26 * 210) a) How many blocks of main memory are there? b) What is the format of a memory address as seen by cache, i.e., what are the sizes of the tag, block, and offset fields?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.
- 3. Suppose a computer using direct mapped cache has 2^32 byte of byte-addressable main memory and a cache of 1024 bytes, where each block contains 64 bytes. a) How many blocks of main memory are there? b) How many blocks of cache are there? c) 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? d) To which cache block will the memory address 0x23B6689A map?1. Suppose a computer has 2³2 bytes of byte-addressable main memory and a cache size of 2¹5 bytes, and each cache block contains 64 bytes. a) How many blocks of main memory are there? (_ b) How many blocks of cache memory are there? (_ c) If this cache is direct-mapped, what is the format of a memory address as seen by the cache; that is, the size of the tag field_ the size of block field and the size of the offset field_ d) If this cache is fully associative, what is the format of a memory address as seen by the cache; that is, the size of the tag field_ and the size of the offset field e) If this cache is 4-way set associative, what is the format of a memory address as seen by the cache; that is, the size of the tag field_ the size of set field and the size of the offset field5. suppose a computer using fully associative cache has 224 bytes of byte-addressable main memory and a cache of 128 blocks, where each cache block contains 64 bytes. 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 size of the tag and offset field. c) To which cache block will the memory address 0x01D872 map?
- 6. Consider a logical address space of 16 pages of 2048 words each, mapped onto a physical memory of 4 frames. (a) How many bits are needed for addressing the total logical address? (b) How many bits are needed to indicate the page number? (c) How many bits are needed for addressing the physical address?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 232 bytes of byte-addressable main memory and a cache size of 512 bytes, and each cache block contains 64 bytes.Q.) What is the format of a memory address as seen by cache; that is, what are the sizes of the tag, block, and offset fields?
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