A+ Guide to Hardware (Standalone Book) (MindTap Course List)
9th Edition
ISBN: 9781305266452
Author: Jean Andrews
Publisher: Cengage Learning
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Textbook Question
Chapter 4, Problem 17RB
If 2 bits of a byte are in error when the byte is read from ECC memory, can ECC detect the error? Can it fix the error?
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Given the 12-bit Hamming code below, identify the correct 8-bit memory word it represents. You must show work.
0 1 1 0 1 1 0 0 1 1 0 1
For the ROM diagram please fill the truth table
values using hexadecimal digits only. Output 3 is
the most significative bit. A3 is the most
significative address line.
mo
ml
m2
m3
m4
m5
m6
m8
m9
ml0
ml1
m12
m13
ml4
ml5
A, A, A, A,
°o
о, о, о, о,
Decoder
A 12-bit Hamming code word containing 8 bits of data and 4 parity bits is read from memory. What was the original 8-bit data word that was written into memory if the 12-bit word read out is as follows:1. 0000111010102. 1011100001103. 101111110100
Chapter 4 Solutions
A+ Guide to Hardware (Standalone Book) (MindTap Course List)
Ch. 4 - Prob. 1TCCh. 4 - Prob. 2TCCh. 4 - Prob. 3TCCh. 4 - Prob. 4TCCh. 4 - Prob. 5TCCh. 4 - Prob. 1RBCh. 4 - Prob. 2RBCh. 4 - What is the name of the memory cache that is...Ch. 4 - What is the name of the Intel technology that...Ch. 4 - Prob. 5RB
Ch. 4 - Prob. 6RBCh. 4 - Prob. 7RBCh. 4 - Prob. 8RBCh. 4 - Prob. 9RBCh. 4 - Prob. 10RBCh. 4 - Prob. 11RBCh. 4 - Prob. 12RBCh. 4 - Prob. 13RBCh. 4 - Prob. 14RBCh. 4 - Prob. 15RBCh. 4 - Prob. 16RBCh. 4 - If 2 bits of a byte are in error when the byte is...Ch. 4 - A DIMM memory ad displays 5-5-5-15. What is the...Ch. 4 - Prob. 19RBCh. 4 - Prob. 20RBCh. 4 - Prob. 21RBCh. 4 - Prob. 22RBCh. 4 - Prob. 23RBCh. 4 - Prob. 24RBCh. 4 - Prob. 25RB
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- THINKING CRITICALLY If 2 bits of a byte are in error when the byte is read from ECC memory, can ECC detect the error? Can it fix the error?arrow_forward___________ occurs when the result of an arithmetic operation exceeds the number of bits available to store it.arrow_forwardA 4-bit data word (1101)2 is encoded using Hamming ECC for single error correction. Write the corresponding 7-bit codeword that is stored in memory below. Enter your answer herearrow_forward
- Calculate the parity of a byte with the value 31 and show the pattern stored to memory. Assume the parity bit is on the right. Suppose the most significant bit was inverted in memory, and then you read it back. Did you detect the error? What happens if the two most significant bits are inverted?arrow_forwardTo solve this problem, you must create a program in MIPS(MARS) that takes an 8-bit binary number and returns it as a binary-coded decimal (BCD).arrow_forwardUsing Emu8086, write an ALP that will print the sum of two (2) variables X and Y to memory OB55H if their values are equal; otherwise, it will print their quotient to memory location DB5SH, Declare X and Y to have the size 16 bits each.arrow_forward
- the original 8-bit data word that was written into memory if 12-bit words read out is as follows? (a) 001111101010 (b) 101110010110arrow_forwardA set of ten packed BCD numbers is stored in the memory location starting at 3050H. i. Write a program with a subroutine to add these numbers in BCD. If a carry is generated, save it in register B, and adjust it for BCD. The final sum will be less than 9999sCD. ii. Write a second subroutine to unpack the BCD sum stored in registers A and B, and store them in the memory locations starting at 3070H. The most significant digit (BCD4) should be stored at 3070H and the least significant digit (BCD) at 3073H.arrow_forwardWhat is the relationship between the number of redundant bits required for code and the number of data bits?arrow_forward
- Please answer the following questions about RISC-V floating-point representation: a. Please represent the number -1.2356 ´ 108 using the 32-bit RISC-V format. b. What is the range (i.e., lower bound and upper bound) of floating-point numbers that the 32-bit RISC-V format can represent? What problems it will cause if the floating-point number we want to represent goes below the lower bound or above the upper bound? What would be a solution to such problems?arrow_forwardSuppose we want an error-correcting code that will allow all single-bit errors to be corrected for memory words of length 10. 1. a) How many parity bits are necessary? 2. b) Assuming we are using the Hamming algorithm presented in this chapter to design our error-correcting code, find the code word to represent the 10-bit information word: 1 0 0 1 1 0 0 1 1 0.arrow_forwardUsing the Hamming code given in class for 8 bit data words, determine whether there is an error, and if so, in which bit, for each of the following words fetched from memory: 0010 0011 0010arrow_forward
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