Current server memory modules (DIMMs) employ SEC/DED ECC to protect each 64-bit data block with eight parity bits, per Section 5.5. Compare the cost/performance ratio of this code to that of code 5.9.1. Cost relates to the relative amount of parity bits needed, while performance refers to the relative number of correctable errors. Which is the best?

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For a computer with 56-bit physical addresses and a 8-way set associative cache of 64 KB where each cache line has the capacity of holding 32 words. Assume the word size is 3 and the architecture is byte-addressable. Answer the questions below: a.How many bits are needed for tag, index, word offset, and byte offs. Show your derivations and assumptions. b.What are the start and end physical addresses, in hex as discussed in class, for cache line 300? Cache line count starts from 0. c.What is the total size, in KB, of this cache? d.What is the tag value, in hex, of address 0xABCDEF98765432?

In this programming activity, you will be writing an LC-3 assembly program that will examine a given 16- bit value stored in a given memory location. Your program should count the number of 1s that occur in the given value. HINT: You can examine each bit of a given value by shifting the value by one bit to the left repeatedly and looking at the resulting value of MSB (sign bit). Your program should assume that the initial bit pattern is in memory location labeled PATTERN. Your program should count the number of 1s in PATTERN and store the count in memory location labeled NUM_ONES. Your program should start at memory location x3100. Example: If PATTERN contains the bit pattern 1111 0000 0000 1111 (XF0OF), then your program should store 8 into NUM_ONES. You will need to demonstrate the correct execution of your program by using the LC-3 Simulator.