Computer Systems: A Programmer's Perspective (3rd Edition)
3rd Edition
ISBN: 9780134092997
Author: Bryant
Publisher: PEARSON
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Expert Solution & Answer
Chapter 6.4, Problem 6.13PP
A)
Explanation of Solution
Cache entry and cache byte:
The program running on a machine references the 1-byte word at address “
First, one needs to convert the hexadecimal address into binary form:
For example, “
One needs to consider the following set associative (S, E, B, m) = (8, 4, 4, 13). The derived value will be as follows:
The Index (CI):
B)
Explanation of Solution
Memory reference:
The address format (1 bit per box) for address “
| CT | CT | CT | CT | CT | CT | CT | CT | CI | CI | CI | CO | CO |
| 0 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 0 |
The memory reference for the above address format “
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Students have asked these similar questions
1. We wish to compare the performance of two different machines: M1 and M2. The following measurements have been made on these machines:
Program
Time on M1
Time on M2
1
10 seconds
5 seconds
2
3 seconds
4 seconds
Which machine is faster for each program, and by how much?
2. For M1 and M2 of problem 1, the following additional measurements are made:. Find the instruction execution rate (instructions per second) for each machine when running program 1.
Program
Instructions executed on M1
Instructions executed on M2
1
200 x 106
160 x 106
3. For M1 and M2 of problem 1, if the clock rates are 200 MHz and 300 MHz, respectively, find the CPI for program 1 on both machines using the data provided in problems 1 and 2.
4. You are going to enhance a machine, and there are two possible improvements: either make multiply instructions run four times faster than before or make memory access instructions run two times faster than before. You…
li $t2, 2
L1:
add $t1, $t1, $t2
sub $t1, $t1, $t3
bne $t1, $t4, L1
sub $t4, $s0, $t3
Given the modified single-cycle processor shown below, what are the values (in binary) of instruction[31-26], instruction[25-21], instruction[20-16], instruction[15-11], instruction[5-0], Read data 1, Read data 2, ALU zero, PCSrc, and all the main control decoded output signals when the time is at 1950 ns. The below single-cycle processor diagram can be used for your reference.
Note: A new decoded signal output “Tzero” is added for executing “bne” instruction. The signal definition is described below:
Instruction
Opcode
New Main Control Output Signal
beq
00100b (4d)
Tzero = 0
bne
00101b (5d)
Tzero = 1
At the moment of 1950 ns, the below values (0, 1 or X) are:instruction[31-26] = instruction[25-21] = instruction[20-16] =instruction[15-0] =
Read data 1 output =
Read data 2 output =
RegDst =
ALUSrc =
MemtoReg =
RegWrite =…
1.BL=00, after instruction DEC BL is executed, CF =?
2.CH=80H; after ROL CH, 1; CH=?
Chapter 6 Solutions
Computer Systems: A Programmer's Perspective (3rd Edition)
Ch. 6.1 - Prob. 6.1PPCh. 6.1 - Prob. 6.2PPCh. 6.1 - Prob. 6.3PPCh. 6.1 - Prob. 6.4PPCh. 6.1 - Prob. 6.5PPCh. 6.1 - Prob. 6.6PPCh. 6.2 - Prob. 6.7PPCh. 6.2 - Prob. 6.8PPCh. 6.4 - Prob. 6.9PPCh. 6.4 - Prob. 6.10PP
Ch. 6.4 - Prob. 6.11PPCh. 6.4 - Prob. 6.12PPCh. 6.4 - Prob. 6.13PPCh. 6.4 - Prob. 6.14PPCh. 6.4 - Prob. 6.15PPCh. 6.4 - Prob. 6.16PPCh. 6.5 - Prob. 6.17PPCh. 6.5 - Prob. 6.18PPCh. 6.5 - Prob. 6.19PPCh. 6.5 - Prob. 6.20PPCh. 6.6 - Prob. 6.21PPCh. 6 - Prob. 6.22HWCh. 6 - Prob. 6.23HWCh. 6 - Suppose that a 2 MB file consisting of 512-byte...Ch. 6 - The following table gives the parameters for a...Ch. 6 - The following table gives the parameters for a...Ch. 6 - Prob. 6.27HWCh. 6 - This problem concerns the cache in Practice...Ch. 6 - Suppose we have a system with the following...Ch. 6 - Suppose we have a system with following...Ch. 6 - Suppose that a program using the cache in Problem...Ch. 6 - Repeat Problem 6.31 for memory address0x16E8 A....Ch. 6 - Prob. 6.33HWCh. 6 - Prob. 6.34HWCh. 6 - Prob. 6.35HWCh. 6 - Prob. 6.36HWCh. 6 - Prob. 6.37HWCh. 6 - Prob. 6.38HWCh. 6 - Prob. 6.39HWCh. 6 - Given the assumptions in Problem 6.38, determine...Ch. 6 - You are writing a new 3D game that you hope will...Ch. 6 - Prob. 6.42HWCh. 6 - Prob. 6.43HWCh. 6 - Prob. 6.45HWCh. 6 - Prob. 6.46HW
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