DSP_fft16x16r
{
int | i, l0, l1, l2, h2, predj; |
int | l1p1,l2p1,h2p1, tw_offset, stride, fft_jmp; |
short | xt0, yt0, xt1, yt1, xt2, yt2; |
short | si1,si2,si3,co1,co2,co3; |
short | xh0,xh1,xh20,xh21,xl0,xl1,xl20,xl21; |
short | x_0, x_1, x_l1, x_l1p1, x_h2 , x_h2p1, x_l2, x_l2p1; |
short | *x,*w; |
short | *ptr_x0, *ptr_x2, *y0; |
unsigned int j, k, j0, j1, k0, k1; short x0, x1, x2, x3, x4, x5, x6, x7; short xh0_0, xh1_0, xh0_1, xh1_1; short xl0_0, xl1_0, xl0_1, xl1_1; short yt3, yt4, yt5, yt6, yt7;
unsigned | a, | num; |
stride = | n; | /* n is the number of complex samples */ |
tw_offset = 0;
while (stride > radix)
{
j = 0;
fft_jmp = stride + (stride>>1); h2 = stride>>1;
l1 = stride;
l2 = stride + (stride>>1); x = ptr_x;
w = ptr_w + tw_offset;
for (i = 0; i < n>>1; i += 2)
{
co1 = w[j+0]; si1 = w[j+1]; co2 = w[j+2]; si2 = w[j+3]; co3 = w[j+4]; si3 = w[j+5]; j += 6;
x_0 = x[0];
