Question

I need the full code. No hardcoding.

Code a function to convert any 8-bit number from binary to hexadecimal. You are not allowed to use libraries that automate this process.

a) Test your function with the following binary numbers. 11110000 and 00100010

The binary number will be provided by the user and you must read it using fgets.

b) Draw a flowchart of your code. You can draw it by hand but it must be readable, and respect the flowchart conventions.

Must be Written in C

Answer 1

Program Explanation

1. Take a binary number as input and store it in the variable binaryval.
2. Obtain the remainder and quotient of the input number by dividing it by 10.
3. Multiply the obtained remainder with variable i and increment the variable hexadecimalval with this value.
4. Increment the variable i by 2 and override the variable binaryval with the quotient obtained.
5. Repeat the steps 2-4 until the variable binaryval becomes zero.
6. Print the variable hexadecimalval as output.

#include <stdio.h>
 
int main()
{
    long int binaryval, hexadecimalval = 0, i = 1, remainder;
 
    printf("Enter the binary number: ");
    scanf("%ld", &binaryval);
    while (binaryval != 0)
    {
        remainder = binaryval % 10;
        hexadecimalval = hexadecimalval + remainder * i;
        i = i * 2;
        binaryval = binaryval / 10;
    }
    printf("Equivalent hexadecimal value: %lX", hexadecimalval);
    return 0;
}

Output:

Enter the binary number: 11110000
Equivalent hexadecimal value: F0

Enter the binary number: 00100010
Equivalent hexadecimal value: 22

FlowChart: