Thread: Not displaying higher nibble

I have this one array declared as result[row][col]

the result[row][col] is obtained from the operation of array1[row][col] XOR (^) array2[row][col] where all the arrays contain hexadecimal numbers.


After the result[row][col] is obtained, i want to display it in a form of 4x4 matrix. The function i have written is as follow :

Code:

void display(char result[4][4]){

for(row = 0; row < 4; row ++){
	for(col = 0; col < 4; col ++){
	printf(" %x ", result[row][col]);}
	printf("\n");         }

}

What i get from the display is of course, the expected value, except that it will not display 2 nibbles for a value of zero as its higher nibble.

For e.g :

the results[row][col] is supposedly to have this value :

{ 0xd6, 0xf3, 0x52, 0x04,
0x00, 0x23, 0x5a, 0x53,
0xc1, 0x0f, 0x3f, 0x66,
0xa2, 0x06, 0x55, 0x7c}

I am expecting this to be displayed on the screen :

d6 f3 52 04
00 23 5a 53
c1 0f 3f 66
a2 06 55 7c

However, the actual display i get from the screen is

d6 f3 52 4
0 23 5a 53
c1 f 3f 66
a2 6 55 7c

as you can see, those value with zero as its higher nibble will not be displayed and i dont want that to happens. What i want is to display a fixed 2 nibbles digits regardless its value and i could not find a way to do this. Please helps! Thank you very much!