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Qn #1918
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Qn #415
In the design of a control unit of a processor, two common approaches are used:
hardware control and microprogrammed control. Consider the following
statements:
- Hardware control units are generally faster but more difficult to modify than microprogrammed control units.
- In a horizontal microprogrammed control unit, each control signal has a separate bit in the control word.
- Vertical microprogramming leads to longer control words but provides greater parallelism.
- Microprogrammed control units are typically easier to implement and modify than hardware control units.