Design a 4-bit left rotator and sketch a schematic of your design. For a left rotator,...
Design a 4-bit left rotator and sketch a schematic of your design. For a left rotator, the most significant bits should rotate around to the least significant bits. You should support rotations ranging between 0 and 3 bits. Your circuit will have two inputs, 4’ A carrying the data to be rotated and 2’ shamt specifying how far to rotate. Your circuit will have one 4’ output Y for the result of the rotation.
Homework Answers
Let A4A3A2A1 be the input and XY be the shift amount and Y4Y3Y2Y1 be the outputof the rotator.
IDEA:
Using 4 multiplexers we can achieve this in this way.Consider the multiplexer for the output Y1. For this multiplexer when
i) XY=00,there is no shift and hence,Y1=A1. So,the 0th Input to multiplexer is A1.
ii)XY=01,there is 1 shift and hence Y1=A4.So, the 1st input to multiplexer is A4
In this way,all the inputs to the multiplexer are connected and it will do the required function.A detailed circuit is given in the image below:
CIRCUIT:
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Design a 4-bit left rotator and sketch a schematic of your
design. For a left rotator,...
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