Function bitrv216neg

extlibs/soloud/src/core/soloud_fft.cpp:844–911

	void bitrv216neg(float *a)
	{
		float x1r, x1i, x2r, x2i, x3r, x3i, x4r, x4i,
			x5r, x5i, x6r, x6i, x7r, x7i, x8r, x8i,
			x9r, x9i, x10r, x10i, x11r, x11i, x12r, x12i,
			x13r, x13i, x14r, x14i, x15r, x15i;

		x1r = a[2];
		x1i = a[3];
		x2r = a[4];
		x2i = a[5];
		x3r = a[6];
		x3i = a[7];
		x4r = a[8];
		x4i = a[9];
		x5r = a[10];
		x5i = a[11];
		x6r = a[12];
		x6i = a[13];
		x7r = a[14];
		x7i = a[15];
		x8r = a[16];
		x8i = a[17];
		x9r = a[18];
		x9i = a[19];
		x10r = a[20];
		x10i = a[21];
		x11r = a[22];
		x11i = a[23];
		x12r = a[24];
		x12i = a[25];
		x13r = a[26];
		x13i = a[27];
		x14r = a[28];
		x14i = a[29];
		x15r = a[30];
		x15i = a[31];
		a[2] = x15r;
		a[3] = x15i;
		a[4] = x7r;
		a[5] = x7i;
		a[6] = x11r;
		a[7] = x11i;
		a[8] = x3r;
		a[9] = x3i;
		a[10] = x13r;
		a[11] = x13i;
		a[12] = x5r;
		a[13] = x5i;
		a[14] = x9r;
		a[15] = x9i;
		a[16] = x1r;
		a[17] = x1i;
		a[18] = x14r;
		a[19] = x14i;
		a[20] = x6r;
		a[21] = x6i;
		a[22] = x10r;