Horizontal microprogramming:
2002
Horizontal microprogramming:
Answer: D. all of the above — In horizontal microprogramming, the control word is wide and control signals are represented directly, often with one bit or field corresponding to each…
- 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
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Correct answer: D
In horizontal microprogramming, the control word is wide and control signals are represented directly, often with one bit or field corresponding to each control signal. Because the signals are not highly encoded, signal decoders are generally not required for those control signals. This direct representation makes horizontal microinstructions larger than vertical microinstructions, but it also allows faster and more parallel control signal generation. Therefore, all the given statements are correct.
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