OPENCORES.ORG

Hi Dhawal,
   I really do think you should study more carefully the different 
signed integer notations. For example, just googling for "two's 
compliment" I found this fairly well explained link:
http://en.wikipedia.org/wiki/Two's_complement

Take a good look at it and it'll answer your question. By the way, 
integers are integer numbers.... that is: they don't ever have a 
fractional part.

Regards,

Víctor López

Dhawal Kadao escribió:
>
> Thanks Balaji,
>  
> I have a problem in deciding the format of the input data stream. How 
> to set the format while i input the data through Test bench. I am 
> using twos complement format to input negative numbers.
> For example: My data word is 16 bits. So how are the bits assigned? 
> What I understand is 1 bit is sign bit, one bit for intefer and rest 
> 14 bits for fractional value. Is this format correct or is there a way 
> to define the input sequence.
>  
> Regards,
> Dhawal.
>  
> On 9/15/07, *rbala4ums@h... <mailto:rbala4ums@h...>* 
> <rbala4ums@h... <mailto:rbala4ums@h...>> wrote:
>
>     Hi Kadao,
>
>     Xilinx's IP cores are made so easy that it is very much explanatory on
>     its own. You can get reference materials on IP cores by doing a
>     google
>     search like "Xilinx IP Coregen Memory cores" or blah blah blah....
>
>     if you need info on any particular or specific core, you could
>     actually open a Xilinx project in ISE, add the core as a component,
>     and while generating the core using Xilinx's Coregen Wizard, you will
>     actually see a tab or link stating "More info on the core" if you
>     click that, the wizard directly opens the pdf doc about the specific
>     coregen component on a new browser. That is the best way to get info
>     on any particular core. If you need help on instantiating any core,
>     you will have to do a google search on some examples.
>
>     There are lots and lots of tutorials written by xilinx, and by
>     students of many many research groups from various universities that
>     are openly available on the internet, it just matters on what kind of
>     key words that you use in google. Better you use, more results you
>     get.
>
>     As i said FFT's and Memory cores are the most popular cores that are
>     being used by so many people, so it should be easier to find, also you
>     might want to do a search in "Google's Code Search" also, you will
>     find so many examples(though most results are from the projects of
>     open cores) but you will get some good results on that too.
>
>     Thanks.
>
>     Balaji R
>
>
>     ----- Original Message -----
>     From: Dhawal Kadao< dhawal.kadao@g...>
>     To:
>     Date: Fri Sep 14 16:34:56 CEST 2007
>     Subject: [oc] Who is going to work on cores?
>
>     > Asim,
>     >
>     > I am working on Xilinx ip cores. I have to use fftcore and memory
>     > cores in
>     > my project. I need some reference material and help woth my core.
>     > Thanks,
>     > Dhawal.
>     > On 9/13/07, asim shehzad <attachment-0001.html
>     >
>     >
>     _______________________________________________
>     http://www.opencores.org/mailman/listinfo/cores
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> http://www.opencores.org/mailman/listinfo/cores