C PROGRAM need same output

1- WAP to print 'n' bits from LSB of a number

Description:

a. Read number num from user. b. Read number n from user. c. Do error checking -> If n is greater than integer size, assign n value as sizeof integer. d. Print n number of bits of num from LSB end. If num is 10 and n is 12, then print last 12 bits of binary representation of 10. The output should be -> 0 0 0 0 0 0 0 0 1 0 1 0

Pre-requisites:

Bitwise operators

Functions

Sample Execution:

Test Case 1:

Enter the number: 10

Enter number of bits: 12

Binary form of 10: 0 0 0 0 0 0 0 0 1 0 1 0

Test Case 2:

Enter the number: 15

Enter number of bits: 4

Binary form of 15: 1 1 1 1

requested files:

#include

int print_bits(int, int);

int main() { int num, n; printf("Enter num, n : "); scanf("%d%d", &num, &n); printf("Binary form of %d:", num); print_bits(num, n); }

//

2 - WAP to put the (b-a+1) lsbs of num into val[b:a]

Description:

Read number num from user.

Read number val from user.

Read number a from user.

Read number b from user(a <= b <=31)

Do error checking

Check b is within limit or not.

Call replace_nbits_from_pos function by passing val, b - a + 1, b and n as arguments.

replace_nbits_from_pos(num, a, b, val);

Print the new value of i.

Prompt for continue option.

Example: If num = 11 = (0 0 0 0 1 0 1 1) 2 val = 174 = (1 0 1 0 1 1 1 0) 2 a = 3, b = 5 No_of_bits = b a + 1 = 5 3 + 1 = 3, get 3 bits from 11(num) and replace 3(No_of_bits)from 5th(b) postion of 174(val) then New 'val' value = (1 0 0 1 1 1 1 0) 2 = 158

Pr-requisites:-

Bitwise Operators

Functions

Objective: -

To understand the concept of

Functions

Bitwise Operators

Inputs: - Integers num, val, a, b

Sample execution: - Test Case 1: Enter the value of 'num' : 11 Enter the value of 'a' : 3 Enter the value of 'b' : 5 Enter the value of 'val': 174 Result : 158

requested file

#include

int replace_nbits_from_pos(int, int, int, int);

int main() { int num, a, b, val, res = 0; printf("Enter num, a, b, and val:"); scanf("%d%d%d%d", &num, &a, &b, &val); res = replace_nbits_from_pos(num, a, b, val); printf("Result = %d ", res); }