In case of
Register Addressing it is 0 .
Direct Address 1 cycle
Indirect Address 2 cycle
Register Indirect Address 1 Cycle
Index Mode [R]+x : For getting register content 0 cycle But for [R] 1 cycle Getting x value 1 cycle and ALU operation 1 cycle so total = 2 cycle
Base Mode :: I think 3 cycle will need here
Are all right ?