Question

Write an assembly language program code to clear and set bit 7th and 19th in a 32-bit variable
called N.

Answer 1

Ans: Assembly Language Program in this you can set, clear and toggle any bit variable.

// C program to set, clear and toggle a bit

#include <stdio.h>

// Function to set the kth bit of n

int setBit(int n, int k)

{

    return (n | (1 << (k - 1)));

}

// Function to clear the kth bit of n

int clearBit(int n, int k)

{

    return (n & (~(1 << (k - 1))));

}

// Function to toggle the kth bit of n

int toggleBit(int n, int k)

{

    return (n ^ (1 << (k - 1)));

}

// Main Logic

int main()

{

    int n = 5, k = 1;

    printf("%d with %d-th bit Set: %d\n",

           n, k, setBit(n, k));

    printf("%d with %d-th bit Cleared: %d\n",

           n, k, clearBit(n, k));

    printf("%d with %d-th bit Toggled: %d\n",

           n, k, toggleBit(n, k));

    return 0;

}