1. Suppose a system has an atomic hardware Instruction SHIFT, that does the follows: SHIFT (Int A, B) { // both instructions executed ATOMICALLY, together * BA: A0 A. Implement Dijkstra style semaphores with the shift instruction, that is, semaphores which utilize busy waiting. B. Implement blocking semaphores using the shift instructions 1. Suppose a system has an atomic hardware instruction SHIFT, that does the follows: SHIFT (int *A, B) { // both instructions executed ATOMICALLY, together *B=+A; *A = 0; A. Implement Dijkstra style semaphores with the shift instruction, that is, semaphores which utilize busy waiting. B. Implement blocking semaphores using the shift instructions