[COA] List of micro operations

Question

Write the sequence of micro-operations required for the bus structure of following figure
to add a number to the AC when the number is
a. an immediate operand
b. a direct-address operand
c. an indirect-address operand

Answer 1

a ) ADD 10

b) ADD X   ( AC <- AC+ M[X])

c)ADD  X   (AC<- AC + M[M[X]] )