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andrew-mc [135]
3 years ago
14

Assume the system with 256B memory and 64B cache and the block size of 16 bytes. I.e., there are 4 blocks in the cache. (a) For

direct-mapped cache, 8-bit memory addresss is decomposed of ___-bit tag, ___-bit index, and ___-bit block offset. (b) For fully associative cache, 8-bit memory addresss is decomposed of ___-bit tag, ___-bit index, and ___-bit block offset. (c) For 2-way set associative cache, 8-bit memory addresss is decomposed of ___-bit tag, ___-bit index, and ___-bit block offset. Assume the system as question 1. Assume cache is initially empty, i.e., all 4 cache blocks are invalid. Consider the memory reference sequence: D6, 58, D8, 9A, DE, 5C.(a) Indicate if it is a hit or misss for each memory reference if it is direct-mapped cache. What is the miss ratio
Computers and Technology
1 answer:
Nataliya [291]3 years ago
4 0

Answer:

Check the explanation

Explanation:

1.

System = 256Byte = 8 bit

Cache = 64B , block size = 16 byte.

A) Direct Mapped Cache:

Block offset = log (Block size) = log 16 = 4bit

Total # of block inside cache = 4.

Therefore index offset = log 4 = 2bit.

Remaining is tag bits.

Therefore tag bits = 8-(4+2) = 8-6 = 2 bits

Tag                              Index offset                                Block offset

(2 bits)                             (2 bits)                                           (4 bits)

Fully associative cache :

In fully associative cache, any of main memory block can be placed anywhere in cache. Therefore index offset =0 bits.

Therefore tag bits = 8-block offset bit= 8-4 =4bits

Tag                               Block offset

(4 bits)                                (4 bits)

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Sketch f(x) = 5x2 - 20 labelling any intercepts.​
Norma-Jean [14]

Answer:

  • The graph of the function is attached below.
  • The x-intercepts will be: (2, 0), (-2, 0)
  • The y-intercept will be: (-20, 0)

Explanation:

Given the function

f\left(x\right)\:=\:5x^2-\:20

As we know that the x-intercept(s) can be obtained by setting the value y=0

so

y=\:5x^2-\:20

switching sides

5x^2-20=0

Add 20 to both sides

5x^2-20+20=0+20

5x^2=20

Dividing both sides by 5

\frac{5x^2}{5}=\frac{20}{5}

x^2=4

\mathrm{For\:}x^2=f\left(a\right)\mathrm{\:the\:solutions\:are\:}x=\sqrt{f\left(a\right)},\:\:-\sqrt{f\left(a\right)}

x=\sqrt{4},\:x=-\sqrt{4}

x=2,\:x=-2

so the x-intercepts will be: (2, 0), (-2, 0)

we also know that the y-intercept(s) can obtained by setting the value x=0

so

y=\:5(0)^2-\:20

y=0-20

y=-20

so the y-intercept will be: (-20, 0)

From the attached figure, all the intercepts are labeled.

8 0
3 years ago
You load an image file into a numpy array and look at its shape, which is (433, 650). What does this indicate?
Nat2105 [25]

Answer:

option C

Explanation:

The correct answer is option C

the uploaded image shape is ( 433 , 650 )

this shape means that the image is a grayscale image which is 433 pixels high by 650 pixels wide.

a gray scale image is  in white and black color.

433 pixels high by 650 pixel wide means that the image is formed with the combination of 433 vertical dots and 650 horizontal dots.

Resolution of an image can be found out by the  pixels present in the images.

higher the pixel higher is he resolution of the image.

6 0
3 years ago
In mathematics, the notation n! represents the factorial of the nonnegative integer n. The factorial of n is the product of all
hram777 [196]

Answer:

The program to this question can be given as:

Program:

factorial=1 #declare a variable.  

number=int(input("Enter a positive integer:")) #input a number.  

while (number>0): #loop  

   factorial= factorial*number # holding value in factorial variable  

   number=number-1  

print('=',factorial) #print value.

Output:

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Explanation:

The description of the above python program can be given as:

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4 0
3 years ago
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BARSIC [14]

The program does not consists of any syntax error but the module contains error in logic especially while placing the condition inside if statement.

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Solution 1:

if value<=lower AND value>=upper Then

Display “The given number is outside the specified range.”

else

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End if

Alternate solution:

So for that the condition needs to be value>=lower and value <=lower. so  

if value > lower AND value <upper Then

Display “The given number is within the specified range.”

else  

Display “The given number is within the specified range.”

7 0
4 years ago
Which of these Logic Statement's are correct for the following diagram? *
Solnce55 [7]

Answer:

A AND B OR C

Explanation:

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