Write two different sets of instruction (think of it as two different, independent programs) that will compute the Nth Fibonacci number. Assume N...

Write two different sets of instruction (think of it as two different, independent programs) that will compute the Nth Fibonacci number.  Assume N will be an input.  One instruction set should assume a one-address instruction while the other can be a two-address instruction, three-address instruction or a program in the language of your choice.  Identify advantages and disadvantages of using an one address instruction set compared to the other program you developed (speed, storage, flexibility, etc.).