which adder is of low power?

[henrytqy]

Hi all,

Recently, I am doing a homework which is to design a 32-bit adder with low power(Verilog HDL).As far as I know there are many different structures of adder, like Carry-bypass, Carry select, Carry look ahead.......

Since I am new to digital design, I am not sure which structure consumes less power ?

Please help~~~

Thanks~~~

 

[soloktanjung]

Perhaps you can code several types of adder with 32 bit size and do power analysis and conclude what you find. Please look at this lecture: https://users.encs.concordia.ca/~asim/COEN_6501/Lecture_Notes/Lecture_2_Slides.pdf