high-performance iphone and 8.24: convert to float and back or fixed-point math?
high-performance iphone and 8.24: convert to float and back or fixed-point math?
- Subject: high-performance iphone and 8.24: convert to float and back or fixed-point math?
- From: Joel Reymont <email@hidden>
- Date: Fri, 13 Feb 2009 18:17:45 +0000
What is the optimal (high-performance way) of working with 8.24 data
on the iPhone?
Should I disable Thumb for the app, do the signal processing using
floats and convert to and from 8.24 as needed?
Someone mentioned in the archives that doing fixed-point math directly
will quickly out-weight the hit of converting an array of samples to
float.
Last but not least, are there optimized routines for converting 8.24
to float and back?
Thanks in advance, Joel
---
http://tinyco.de
--- Mac & iPhone
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