Here the case is like MODE bit is one only as it indicate the Indirect mode
MODE -1bit
|
OPCODE-? |
REGISTER OPERAND require 7 bits (128 registers are there) |
MEMORY OPERAND require 28 bits |
Now total length of INSTRUCTION is 40
so total bits for OPCODE= 40-28-7-1=4 bits ..
So total operations possible are 2^4 = 16