Testbook Test Series: CO & Architecture - Instruction Format

Question

A processor has $128$ distinct instructions. A $24-$bit instruction word has an opcode, register, and operand.The number of bits available for the operand field is $7.$The maximum possible value of the general-purpose register is _________

Comments

@shrestha yes, we use 10 bits for registers and there can be 1024 registers. but they will be addressed as R0,R1,......R1023 (1024 registers)..

So the answer is 1023.

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Similar question was already asked in GATE

 

https://gateoverflow.in/1767/gate2014-1-9

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yes, check my doubt there too

@Magma

@Mk Utkarsh

plz tell