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Q&A 2 bit subtractor using full subtractor

Can we make a n-bit subtractor using full subtractors or if we want do subtract one binary from another we must use full adders and use the complement of the 2nd number to do the subtraction? I ha...

1 answer  ·  posted 3y ago by MissMulan‭  ·  edited 1y ago by Lorenzo Donati‭

#2: Post edited by user avatar Lorenzo Donati‭ · 2023-08-12T10:12:42Z (over 1 year ago)
Retagged.
#1: Initial revision by user avatar MissMulan‭ · 2021-08-06T16:13:53Z (over 3 years ago)
2 bit subtractor using full subtractor
Can we make a n-bit subtractor using full subtractors or if we want do subtract one binary from another we must use full adders and use the complement of the 2nd number to do the subtraction?

I have only found examples which we use the complement of the second number and using full adders if it is possible  to create a n-bit substractor using only full subtractors and without any adders or complements i would really appreciate it if he/she posted the circuit because i am stuck.