The carry-select adder generally consists of two ripple carry adders and a multiplexer. Adding two n-bit numbers with a carry-select adder is done with two adders (therefore two ripple carry adders) in order to perform the calculation twice, one time with the assumption of the carry-in being zero and the other assuming it will be one. After the two results are calculated, the correct sum, as well as the correct carry-out, is then selected with the multiplexer once the correct carry-in is known.
Aim is to design Improved Adder in terms of performance.
Where I Need the Most Help
- Present new ideas for design improvement.
- Implementing new design using verilog.
Why I’m Passionate About This Project
Adders can be constructed for many numerical representations, such as BCD or Excess-3, the most common adders operate on binary numbers.
Adders plays major role in multiplications and other advanced processors designs.
Carry Select Adder (CSLA) is one of the fastest adders used in many data-processing processors to perform fast arithmetic functions.
By gate level modification of CSLA architecture, we can reduce area, power and delay.
Supporting Material & Info