Re: Best processors for trig?
- From: "Mike Noone" <nleahcim@xxxxxxxxx>
- Date: 31 Mar 2007 07:55:02 -0700
On Mar 30, 11:46 am, Tim Wescott <t...@xxxxxxxxxxxxxxxx> wrote:
Mike Noone wrote:
Hi - I was just wondering, are there any processors out there that
have been optimized for trig operations? I'm hoping to find a
processor that can do trig ops (sin, cos, tan, asin, acos, atan, etc.)
quickly. The faster the better. I would really like to be able to do
such operations in the single digit microsecond range or less, though
that's probably a longshot. I'm looking for floating point values -
ideally in the C data type "double". Does anything like this exist?
Ideally in a non-BGA package, as I hate debugging the little buggers.
Thanks!
-Mike
A floating point DSP, as noted.
Pentium-class x86 processors, although that's stretching the idea of
"embedded" a bit.
Probably PowerPC architecture chips, at least the ones with FPUs (look
carefully, however, I bet there are ones with simple FPUs and others
with complex FPUs).
Some of the bigger fixed-point DSPs may be able to do this -- I know
that TI's '28xx family will do floating point quite efficiently, but (a)
I know they do it by leaving out some of the corner-case testing for
exceptions and (b) I don't know how this translates to trig performance.
Tim Wescott
Why the 28x family? Wouldn't it make more sense to use a 67x as it is
designed for floating point, while the 28x is designed for fixed
point?
I must admit that I am new to the DSP world, so it's quite possible
I'm missing something obvious here.
-Mike
.
- Follow-Ups:
- Re: Best processors for trig?
- From: Paul Keinanen
- Re: Best processors for trig?
- References:
- Best processors for trig?
- From: Mike Noone
- Re: Best processors for trig?
- From: Tim Wescott
- Best processors for trig?
- Prev by Date: Re: Best processors for trig?
- Next by Date: Re: Best processors for trig?
- Previous by thread: Re: Best processors for trig?
- Next by thread: Re: Best processors for trig?
- Index(es):
Relevant Pages
|
