Inarithmetic units the subtraction is transformed into an addition by adding thecomplement So AB means At (-B) = At complement of B The operation A =B might be: A>B, the result is positive, there will be an end carry A< B, the result is negative, written in the complemented form, no end carry Part a) fill its table. P-Q 7-5 5 - 3 9-9 4-bit binary adder P3 P2 P, Po Qs Q2 .P 1 3 What is the CI function of this có bit? Figure 1: Circuit 1 CO Question: What is the function of the invertor in the circuit?

Introductory Circuit Analysis (13th Edition)
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Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Part 2: Subtraction of Two numbers
In.arithmetic. unitsthesubtraction is transformed into an addition by adding the..complement. Se AB.
means At (-B) = A+ complement of B The operation A =B might be:
A>B, the result is positive, there will be an end carry
A< B, the result is negative, written in the complemented form, no end carry
Part a)
fill its table.
P-Q 7-5
5-3
9-9
4-bit binary
adder
P3
P2
P,
Po
Q3
Q2
Q1
10
1c
10
What is the
1b fupction of this
bit?
CI
Figure 1: Circuit 1
CO
Question: What is the function of the invertor in the circuit?
Answer:
Transcribed Image Text:Part 2: Subtraction of Two numbers In.arithmetic. unitsthesubtraction is transformed into an addition by adding the..complement. Se AB. means At (-B) = A+ complement of B The operation A =B might be: A>B, the result is positive, there will be an end carry A< B, the result is negative, written in the complemented form, no end carry Part a) fill its table. P-Q 7-5 5-3 9-9 4-bit binary adder P3 P2 P, Po Q3 Q2 Q1 10 1c 10 What is the 1b fupction of this bit? CI Figure 1: Circuit 1 CO Question: What is the function of the invertor in the circuit? Answer:
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