x1l = p->x1l, x1r = p->x1r; 
p->x1l = x1l, p->x1r = x1r; 
void do_filter_lowpass1_stereo(int32 *buf, int32 count, filter_lowpass1 *p){	int32 i, a = p->ai, ia = p->iai, x1l = p->x1l, x1r = p->x1r;	for(i = 0; i < count; i++) {		do_filter_lowpass1(&buf[i], &x1l, a, ia);		++i;		do_filter_lowpass1(&buf[i], &x1r, a, ia);	}	x1l = p->x1l, x1r = p->x1r;}
4357	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4357/de47d0366a0f0a304ae64e9edbec077274d43adf/reverb.c/clean/timidity/reverb.c