Page 1 :
Central Processing Unit, , 13, , Instruction Format, , , , ONE, AND ZERO-ADDRESS INSTRUCTIONS, , , , LOAD A, ADD B, STORE T, LOAD Cc, ADD D, MUL T, STORE X, , PUSH, PUSH, ADD, PUSH, PUSH, ADD, , MUL, POP, , , , A, B, , c, D, , x, , * One-Address Instructions, , - Use an implied AC register for all data manipulation, - Program to evaluate, , X= (A+B)*(C+D):, , * AC — MIA] 4, * ACCAC+MIB] *, * M[T] << AC +, * AC <—MIC] 4, , ACCAC+M[D] *, ACE AC*MT] *, * MDX] —AC 4, , + Zero-Address Instructions, - Can be found in a stack-organized computer, , - Program to evaluate X= (A+ B)*(C+D):, , fe, , a, a, a, a, a, a, i, , TOS<A, TOS<B, TOS < (A+B), ToS<c, TOS<D, TOS < (C+D), , TOS < (C + D)* (A+B) */, , MIX] < TOS, , a], *], *], a], ay, *], , *, 1, , , , , , Computer Organization, , Prof. H. Yoon