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4-bit comparator
X61860 en
Design a circuit that compares two 4-bit numbers represented in binary code and indicates
whether the first is greater than, equal to or smaller than the second.
The root module must be called cmp4.
module
cmp4(a, b, eq, gt , lt );
input
[3:0] a , b;
output
eq, gt , lt ;
Hint
Design a 1-bit comparator that receives the result of the comparison of the least-significant
bits. Use four instances of this circuit.
Input
• a and b are the two 4-bit input numbers.
Output
• eq indicates that a=b.
• gt indicates that a
>
b.
• lt indicates that a
<
b.
Problem information
Author : Jordi Cortadella
Generation : 2013-07-17 16:31:42
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