I can only use integers constants 0 through 255 (0xFF), inclusive. You are not allowed to use big constants such as 0xffffffff, no global variables,unary integer operations ! ~, binary integer operations & ^ | + << >>. I can not use any control constructs such as if, do, while, for, switch, etc. Or define or use any macros or define any additional functions in the file or call any functions or use any other operations, such as &&, ||, -, or ?. Nor any form of casting or any data type other than int. This implies that you cannot use arrays, structs, or unions. The machine uses 2s complement, 32-bit representations of integers, performs right shifts arithmetically, and has unpredictable behavior when shifting if the shift amount is less than 0 or greater than 31. Floating point coding rules: You are allowed to use looping and conditional control and both ints and unsigneds. As well as arbitrary integer and unsigned constants. You can use any arithmetic logical, or comparison operations on int or unsigned data. You are forbidden to define or use any macros, define additional functions in the file, call any functions, use any form of casting, use any data type other than int or unsigned. This means that you cannot use arrays, structs, or unions. Or use any floating point data types, operations, or constants. Example of acceptable coding style: /* * pow2plus1 - returns 2^x + 1, where 0 <= x <= 31 */ int pow2plus1(int x){ .* exploit ability of shifts to compute powers of 2 */ return ( 1 << x) +1; } The question from my assignment is "return a mask that marks the position of the most significant 1 bit. If x == 0, return 0. Example: function_name(96) = 0x40. The operations I can use are: ! ~ & ^ | + << >> and the maximum numbers of operations I can use are 16. function outline: int function_name(int x){ return; }