Ok, w/o dipping into machine code, show me a low level language. Any snippet of C-code is transparent in that you know roughly how it is going to be translated into machine code.
unsigned char r(unsigned char num) { return num % 10; } https://godbolt.org/g/26HfQk
Or compile this with clang and -msse4.2 -O2
// https://codereview.stackexchange.com/questions/38182
// https://codereview.stackexchange.com/a/38184
// Definition: Count number of 1's and 0's from integer with bitwise operation
// 2^32 = 4,294,967,296
// unsigned int 32 bit
#include
int CountOnesFromInteger(unsigned int);
int main()
{ unsigned int inputValue;
short unsigned int onesOfValue;
printf("Please Enter value (between 0 to 4,294,967,295) : ");
scanf("%u",&inputValue);
onesOfValue = CountOnesFromInteger(inputValue);
printf("\nThe Number has \"%d\" 1's and \"%d\" 0's",onesOfValue,32-onesOfValue); }
// Notice the popcnt
int CountOnesFromInteger(unsigned int value) {
int count;
for (count = 0; value != 0; count++, value &= value-1);
return count; }