This program finds the location (i.e. the bit number) corresponding to the location of the first "1" in a number. Call the program part1.asm. Because this program doesn't take data from the keyboard you must have a label number in the code as here: number .fill b0100000000000001 This number must be loaded into a register in the first line of your program e.g. .orig x3000 ld r0, number The program then determines the location of the first "1" in that number and prints the result to the display. The result from the value above would be: The first significant bit is 14 If you then modify the value of number to b0000000000000001 the result would be: The first significant bit is 0