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4 BIT 2 Wide Full Adder - Printable Version

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+---- Thread: 4 BIT 2 Wide Full Adder (/thread-515.html)

Pages: 1 2

4 BIT 2 Wide Full Adder - bametje12 - 07-07-2013

Hello guys

i recently build this Adder i wanna know what you guys think about it

Specs :

Ripple adder
2 Wide every Full Adder
14x8x6
total blocks : 672 with air blocks

Some pics:

[Image: 3x2HRWb.png]

[Image: yB2JuLy.png]

[Image: QepIu8U.png]

Regards Bram Smile

RE: 4 BIT 2 Wide Full Adder - CMOSprinkles - 07-07-2013

There just isn't a whole lot of demand for regular ripple carry adders, since they are far slower than CLA adders and slower still than instant-carry using multiplexers. Could you modify it to support instant-carry? And how many ticks does it take to output sum and carry?

RE: 4 BIT 2 Wide Full Adder - JeremyG - 07-08-2013

Huge in my opinion, but that's just because I have a 2x8x5 one Tongue

RE: 4 BIT 2 Wide Full Adder - bametje12 - 07-08-2013

hello

Thanks for the reply's


(07-07-2013, 08:03 PM)CMOSprinkles Wrote: There just isn't a whole lot of demand for regular ripple carry adders, since they are far slower than CLA adders and slower still than instant-carry using multiplexers. Could you modify it to support instant-carry? And how many ticks does it take to output sum and carry?

i takes 4 ticks to output sum and with carry it takes 3 ticks. sorry but i dont know what support instant carry adder's are


(07-08-2013, 12:15 AM)JeremyG Wrote: Huge in my opinion, but that's just because I have a 2x8x5 one Tongue

How the hell did you do that ;D

Regards Bram

RE: 4 BIT 2 Wide Full Adder - JeremyG - 07-08-2013

(07-08-2013, 01:43 PM)bametje12 Wrote:
(07-08-2013, 12:15 AM)JeremyG Wrote: Huge in my opinion, but that's just because I have a 2x8x5 one Tongue

How the hell did you do that ;D

Regards Bram

Remind me to show it to you when I'm on :3

RE: 4 BIT 2 Wide Full Adder - CMOSprinkles - 07-24-2013

Hello bametje12, any chance you've been working on some new adder designs? CLE adders are really cool.

RE: 4 BIT 2 Wide Full Adder - Billman555555 - 07-24-2013

You guys should look at PLA adders as they are not as complex
But as fast as CLE adders,
* Billman555555 needs to choose CLE, PLA or instant

RE: 4 BIT 2 Wide Full Adder - CMOSprinkles - 07-24-2013

Have you ever actually seen a Programmable Logic Array Adder implemented in minecraft? Please send me a link to the thread.

RE: 4 BIT 2 Wide Full Adder - Billman555555 - 07-24-2013

(07-24-2013, 07:41 AM)CMOSprinkles Wrote: Have you ever actually seen a Programmable Logic Array Adder implemented in minecraft? Please send me a link to the thread.

No proper look ahead adders.

RE: 4 BIT 2 Wide Full Adder - CMOSprinkles - 07-24-2013

PLA adder stands for 'Programmable Logic Array Adder" in digital circuitry. There is no such thing as 'Proper Look Ahead' unless it is a concept that was just recently invented. Link the thread please.