nstruction on the Zilog z8001 2. The figure below shows the instruction format for a 16-bit i processor. The opcode is just 5-bits long so it specifies only 32 instuctions. However, if Operand2 is all zeros the 32 original opcodes specily another set of 32 instructions for a total of 64. We could extend this and allow Operand 2 to specify yet another 32 opcodes had the value 0001. How, if at all, would this limit the processor with regard to use of registers? 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 if operand 2 Mode Opcode w/b Operand 2 Operand 1