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Calculate the time necessary to perform a multiply using the approach described in the text (31 adders stacked vertically) if an integer is 8 bits wide and an adder takes 4 time units.

Sagot :

The time that will be used to perform a multiplication using the approach is 28 time units.

How to calculate time taken?

From the information given, the following can be noted:

A = 8 (bits wide)

B = 4 time units.

The multiplication will be performed based on the adder stack. Since A = 8, then, A - 1 = 8 - 1 = 7.

Now, the time taken will be:

= 7 × B

= 7 × 4tu

= 28 tu

In conclusion, the correct option is 28 time units.

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