Question

Compare horizontal and vertical microinstruction

Answer 1

In a horizontal microinstruction every bit in the control field attaches to a control line. In a vertical microinstruction, a code is used for each action to be performed and the decoder translates this code into individual control signals.

Answer 2

Horizontal Micro Code

- In this types of code the micro code contains the control signal without any intermediary.

- Horizontal micro code instruction contain a lot of signals and hence due to that the number of bits also increase.


Vertical Micro code.

- In case of vertical micro code every action is encoded in density.

- Vertical micro code are slower but they take less space and their actions at execution time need to be decoded to a signal.


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