From 6b85086a56025af261cb9041f59574ce1e048950 Mon Sep 17 00:00:00 2001 From: Mark Borgerding Date: Tue, 27 Apr 2004 01:36:26 +0000 Subject: [PATCH] gave credit --- TIPS | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/TIPS b/TIPS index 39a5fe5..5007c40 100644 --- a/TIPS +++ b/TIPS @@ -21,3 +21,11 @@ Reducing code size: consider creating a hardcoded kiss_fft_state. In other words, decide which FFT size(s) you want and make a structure with the correct factors and twiddles. + * Frank van der Hulst offered numerous suggestions for smaller code size and correct operation + on embedded targets. "I'm happy to help anyone who is trying to implement KISSFFT on a micro" + + Some of these were rolled into the mainline code base: + - using long casts to promote intermediate results of short*short multiplication + - delaying allocation of buffers that are sometimes unused. + In some cases, it may be desirable to limit capability in order to better suit the target: + - predefining the twiddle tables for the desired fft size.