HelenOS sources

tl_forward_loop   237 uspace/lib/trackmod/protracker.c 			sample->loop_type = tl_forward_loop;
tl_forward_loop   895 uspace/lib/trackmod/trackmod.c 	case tl_forward_loop:
tl_forward_loop   390 uspace/lib/trackmod/xm.c 				sample->loop_type = tl_forward_loop;
HelenOS homepage, sources at GitHub