# binary multiplier circuit

Discussion in 'Homework Help' started by Redexx, Feb 12, 2013.

1. ### Redexx Thread Starter New Member

Feb 2, 2013
2
0
Hi.

First i wanna mention, im a complete noob at this.

I've got this assignment where im to design a circuit, which takes a positive 4bit number A and multiply it with + / - 10(des)

I've tried googling it without any luck.

Can anyone help me?
Any pointers?

much appriciated

2. ### tshuck Well-Known Member

Oct 18, 2012
3,527
679
10(des) is that meaning decimal?

You could implement a successive adder to perform the multiplication:
e.g. 3*10 = 10 + 10 + 10 = 30, a Booth multiplier, or you could try a combinational approach like discussed here...

3. ### Redexx Thread Starter New Member

Feb 2, 2013
2
0

yes, im supposed to multiply any 4bit number with 10, and design the circuit for it, but thus far im still all dead i dunno how to start and where to start.

i checked your link, it seemed far too complicated

4. ### tshuck Well-Known Member

Oct 18, 2012
3,527
679
Then i would suggest taking the successive-addition route. A simple FSM can do this...

5. ### WBahn Moderator

Mar 31, 2012
23,162
6,976
What kind of circuit are you expected to come up with? Combinatorial or sequential?