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GATE | GATE-CS-2002 | Question 32

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  • Last Updated : 28 Jun, 2021

Horizontal microprogramming :
(A) does not require use of signal decoders
(B) results in larger sized microinstructions than vertical microprogramming
(C) uses one bit for each control signal
(D) all of the above.

Answer: (D)

Explanation: In horizontal microprogramming the instruction size is less as compared to vertical microprogramming. So, there is no need for decoding.

But, one bit is used for all control signals to execute the microinstruction. If the bit is set to ‘1’ the control signal field is activated. If the bit is set to ‘0’ the control signal field is deactivated.

Thus, option (D) is correct.

Please comment below if you find anything wrong in the above post.

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