fft.c File Reference

#include "coder.h"
#include "assembly.h"

Include dependency graph for fft.c:

Macros
#define	NUM_FFT_SIZES   2
#define	SQRT1_2   0x5a82799a /* sqrt(1/2) in Q31 */
#define	swapcplx(p0, p1)    t = p0; t1 = *(&(p0)+1); p0 = p1; *(&(p0)+1) = *(&(p1)+1); p1 = t; *(&(p1)+1) = t1

Functions
void	R4FFT (int tabidx, int *x)

Macro Definition Documentation

NUM_FFT_SIZES

#define NUM_FFT_SIZES   2

SQRT1_2

#define SQRT1_2   0x5a82799a /* sqrt(1/2) in Q31 */

swapcplx

#define swapcplx	(		p0,
			p1
	)		t = p0; t1 = *(&(p0)+1); p0 = p1; *(&(p0)+1) = *(&(p1)+1); p1 = t; *(&(p1)+1) = t1

Function Documentation

R4FFT()

void R4FFT	(	int	tabidx,
		int *	x
	)