topic Re: floating-point addition unit in LabVIEW

floating-point addition unit

smuStudent — Tue, 06 Dec 2005 05:47:49 GMT

Hello All,

I am very new to NI and I am looking for an example of floating-point addition unit. Basically, I am looking for some example to perform addition of two floating point number (single or double precision). -- just how to create floating-point addition unit using logical gates model (i.e. AND, OR, XOR, etc)

Thank you!

Leo

Message Edited by smuStudent on 12-05-2005 11:51 PM

Re: floating-point addition unit

devchander — Tue, 06 Dec 2005 06:14:50 GMT

Do u mean add something like

1.23

2.2 = 3.43

Re: floating-point addition unit

devchander — Tue, 06 Dec 2005 06:15:32 GMT

U mean add something like

1.23

Re: floating-point addition unit

devchander — Tue, 06 Dec 2005 06:15:33 GMT

U mean add something like

1.23

Re: floating-point addition unit

devchander — Tue, 06 Dec 2005 06:15:33 GMT

U mean add something like

1.23

Re: floating-point addition unit

devchander — Tue, 06 Dec 2005 06:18:47 GMT

Sorry my keyboard seems to be spooked! 😉

So all those repeated posts. 😞

I put it again,

Ok do you mean add something like 1.23+ 1.2= 2.43??

Plz ignore my previous posts.

Regards

Re: floating-point addition unit

devchander — Tue, 06 Dec 2005 08:59:54 GMT

Four single stars????

for a keyboard malfunction????

woah, does it add up to a single four stars????

Re: floating-point addition unit

smuStudent — Tue, 06 Dec 2005 16:18:27 GMT

Thank you for your reply to my post. Yes, I am looking for a design I can do with NI and build a IEEE Floating-Point Addition "unit" and when it works take it to the next level for FPGA. I can wait with FPGA at the moment, as I need to understand and learn more about how to build in for just regular IEEE (either single or double precision formats).
Yes, essentially it is something like:
1.23 + 2.34
But, I want to learn or see (if there is an example) how I can build it with logical gates (AND, OR, XOR , etc)

Thank you!

Re: floating-point addition unit

Dennis_Knutson — Wed, 07 Dec 2005 19:33:42 GMT

Most (if not all) of us, when we want to do floating point math just put the Add function onto the block diagram. I would suggest you google for floating point gates or something similar. You can create subVIs that make up the basic functions such as a full adder and then link them together as needed.