Homework Answers
Answer:
Presence bit, use bit and modified bit these are control bits.
Presence bit->tested by hardware to determine whether page is currently present in memory the bit is set by s/w and tested by h/w.
Use bit->set by h/w whenever page is referenced .
Modified bit->set by h/w whenever page is changed.
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13.6 Consider the presence, use, and modified bits. For each bit, tell when the bit changes...
4) This exercise will first present the modified algorithm for computing the product of two numbers...
4) This exercise will first present the modified algorithm for computing the product of two numbers represented in twos complement with an illustrated example and then ask you to repeat for a different number pair The hardware and the flowchart for signed multiplication in twos complement representation of binary numbers will be slightly modified as follows. Use the version of the unsigned multiplication hardware which employs one double-sized register to hold the partial product and the multiplier a. When shifting...
o Problem 2. Consider an (n, k)-code. Randomly choose n bits, each of which assumes bit...
o Problem 2. Consider an (n, k)-code. Randomly choose n bits, each of which assumes bit 0 with probability 1/2. Prove that the probability that the n-bits is a codeword is 2k-n
2) (25 points) Consider a hypothetical mieroprocessor generating 16-bit addresses with 32-bit data accesses (i.e. each access retrieves 32 bits for each address). a. What is the maximum memory ad...
2) (25 points) Consider a hypothetical mieroprocessor generating 16-bit addresses with 32-bit data accesses (i.e. each access retrieves 32 bits for each address). a. What is the maximum memory address space (i.e., mmber of addresses) that the processor can access directly? What is the maximum memory capacity (in bytes) for this microprocessor? b. c. What is the last memory address that the CPU can access? Write your answer in decimal. What is the maximum memory address space that the processor...
Name: Section Number: Lab by jeg/modified by jec 4450:220 DIGITAL LOGIC DESIGN, Spring 2018 Pre-Lab 7:...
Name: Section Number: Lab by jeg/modified by jec 4450:220 DIGITAL LOGIC DESIGN, Spring 2018 Pre-Lab 7: Counters and Timers Week Eight Objectives To learn about binary and decade counters, and to design a one-hundred second timer. The Counter A counter is a hardware circuit whose output counts in sequence, changing at each rising has a three-bit out rolls over" back to zero to count through the sequence again. We can d edge of a clock input signal. As an example,...
1) Consider the transmission of digital data 1011 0010. Each bit is transmitted during a time...
1) Consider the transmission of digital data 1011 0010. Each bit is transmitted during a time period of T = 1 msec. What is the data transmission rate in bit/sec? Suppose bit 1 is represented by 5 mV and bit O is represented by O mv. Sketch the baseband waveform with a rectangular pulse to show how the waveform during the transmission of the above bits will look like. Below the baseband waveform sketch (1) binary ASK waveform, (2) binary...
3. (6 pts) Consider a new processor. The memory system is 32-bit byte- addressable. The on-chip...
3. (6 pts) Consider a new processor. The memory system is 32-bit byte- addressable. The on-chip cache memory is 128 KByte 4-way set-associative, with a 64 byte block size. (a) Draw a diagram showing how the cache controller will split the memory address: for each field. show its name and number of bits. (b) The design team decided to change the cache architecture to a direct mapped one. For each of the parameters in the following table, indicate the impact...
Consider an allocator on a 32-bit system that uses an implicit free list. Each memory block, eith...
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Question 10 (10 points) Consider a cache of 8 lines of 16 bytes each. Main memory...
Question 10 (10 points) Consider a cache of 8 lines of 16 bytes each. Main memory is divided into blocks of 16 bytes each. That is, block 0 has bytes with addresses 0 through 15, and so on. Now consider a program that accesses memory in the following sequence of addresses: Loop three times: 10 through 20; 32 through 52. Once: 20 through 35. Suppose the cache is organized as direct mapped. Memory blocks 0, 8, 16 and so on...
****************IN C PROGRAMMING**************** Sometimes even the smallest change in data can make a big difference. Luckily,...
****************IN C PROGRAMMING**************** Sometimes even the smallest change in data can make a big difference. Luckily, there are algorithms that will let us not only detect when there has been an error(like checksums), but also correct when an error has occurred. These algorithms are called error-correcting codes.There are many examples of error correcting codes but one of the simplest examples is called a parity bit. A parity bit is just a single bit (1 or 0) that indicates whether a...
1. When a variable star periodically changes its luminosity, each of the following also changes periodically...
1. When a variable star periodically changes its luminosity, each of the following also changes periodically except one. Which one does not change? a) size b) temperature c) radial surface speed d) rotation rate 2. Evidence for the conclusion that the longer-living gamma ray bursters are very distant comes from the a) delay in the arrival of the visible pulse behind the gamma-ray pulse, caused by the passage of the light through optically thick intergalactic material b) extreme redshift of...
4) This exercise will first present the modified algorithm for computing the product of two numbers represented in twos complement with an illustrated example and then ask you to repeat for a different number pair The hardware and the flowchart for signed multiplication in twos complement representation of binary numbers will be slightly modified as follows. Use the version of the unsigned multiplication hardware which employs one double-sized register to hold the partial product and the multiplier a. When shifting...
o Problem 2. Consider an (n, k)-code. Randomly choose n bits, each of which assumes bit 0 with probability 1/2. Prove that the probability that the n-bits is a codeword is 2k-n
2) (25 points) Consider a hypothetical mieroprocessor generating 16-bit addresses with 32-bit data accesses (i.e. each access retrieves 32 bits for each address). a. What is the maximum memory address space (i.e., mmber of addresses) that the processor can access directly? What is the maximum memory capacity (in bytes) for this microprocessor? b. c. What is the last memory address that the CPU can access? Write your answer in decimal. What is the maximum memory address space that the processor...
Name: Section Number: Lab by jeg/modified by jec 4450:220 DIGITAL LOGIC DESIGN, Spring 2018 Pre-Lab 7: Counters and Timers Week Eight Objectives To learn about binary and decade counters, and to design a one-hundred second timer. The Counter A counter is a hardware circuit whose output counts in sequence, changing at each rising has a three-bit out rolls over" back to zero to count through the sequence again. We can d edge of a clock input signal. As an example,...
1) Consider the transmission of digital data 1011 0010. Each bit is transmitted during a time period of T = 1 msec. What is the data transmission rate in bit/sec? Suppose bit 1 is represented by 5 mV and bit O is represented by O mv. Sketch the baseband waveform with a rectangular pulse to show how the waveform during the transmission of the above bits will look like. Below the baseband waveform sketch (1) binary ASK waveform, (2) binary...
3. (6 pts) Consider a new processor. The memory system is 32-bit byte- addressable. The on-chip cache memory is 128 KByte 4-way set-associative, with a 64 byte block size. (a) Draw a diagram showing how the cache controller will split the memory address: for each field. show its name and number of bits. (b) The design team decided to change the cache architecture to a direct mapped one. For each of the parameters in the following table, indicate the impact...
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