RE: [fpu] fmul performance

[Sagheer.Ahmad@infineon.com]

To support Jamil's point. If you expand your buses, it would
certainly affect ur performance. On the other hand if area 
and power are not major concern then you can expand buses 
by expanding defines etc and it would have little effect on
the performance.
A rule of thumb is if you expand a bus-width there is no
easy way (although not impossible? if you sacrifice area/power 
arbitrarily)to get the same frequency performance with the 
expanded bus(This is true when ur original bus is designed to 
operate at max. possible frequency).


Regards,
Sagheer Ahmad.


-----Original Message-----
From: Jamil Khatib [mailto:jamilkhatib75@yahoo.com]
Sent: Tuesday, July 18, 2000 11:34 PM
To: fpu@opencores.org
Subject: Re: [fpu] fmul performance



> > One final comment: Do not you think that our core
> > should be scalable? so we can increase the
> precision
> > without much troubles?
> > 
> 
> I am not expert on IEEE single/double precision. But
> is it enough if
> all buses are expanded accordingly? If this is
> enough then a couple of
> `defines would solve this.
> 

It is OK to make some defines but I think it will
affect on the performance. 
Anyhow if that is so simple why do large companies do
not go to higher precisions when they have enough
resources if they want to keep on the same performance

Regards
Jamil Khatib

> 
> regards,
> Damjan
> 
> 
> __________________________________________________
> Do You Yahoo!?
> Get Yahoo! Mail - Free email you can access from
> anywhere!
> http://mail.yahoo.com/


__________________________________________________
Do You Yahoo!?
Get Yahoo! Mail - Free email you can access from anywhere!
http://mail.yahoo.com/