How to design a BCD Subtractor?
How to design a BCD Subtractor??
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Administrator • Oct 27, 2009
Post moved to a new thread in Electrical/Electronics engineering section.Are you sure? This action cannot be undone. -
Member • Oct 28, 2009
there are two options......(according to what we are taught in our 2nd year,dunno if its what you ask any way here it goes.)
1)using 9's complement
2)using 10's complement.Are you sure? This action cannot be undone. -
Member • Oct 28, 2009
the mechanism of 9's complement is like this:
regular sub: ............ 9's comp. sub:
8 ......................................... 8
-2...................................... +7 (removal of 2 from 9)
---..................................... -----
6...................................... 1 5 => 1+5 = 6
in case of 10's complement:
regular ....................... 10's comp. sub:
8............................................ 8
-2....................................... +8 (removal of 2 from 10)
----..................................... -----
6......................................... 1 6
........................................... now drop the carry and the result of sub. is 6
this is the basic logicAre you sure? This action cannot be undone. -
Member • Oct 28, 2009
if this is what you ask then let me know i can try and get you the circuit.😀Are you sure? This action cannot be undone. -
Member • Oct 28, 2009
I am dealing with the same topic..
Will let you know the answer soon,because i am working for it right now.Are you sure? This action cannot be undone. -
Member • Oct 28, 2009
sorry i am unable to do so
it is in my text but you may try and find the book in some library(sorry about that!!!)
BOOK: digital electronics(first edition)
AUTHORS:A.P.Godse ,D.A.Godse
PUBLICATIONS:technical publication, pune.
you may also try other books but this is the prescribed one for 2nd year in my college.
it has the circuit for both 9's and 10's complement.Are you sure? This action cannot be undone. -
Member • Oct 29, 2009
hey u must be a student of pune university then....use tech max.borrow it from a friend if you dont have it.i had studied from the techmax book by J.S.Katre.the topic is very well covered in that book.Are you sure? This action cannot be undone.