#	sort - parallel mergesort for 4 cores
.	Net
<	in
>	out
|	i0 i1 i2 i3
|	o0 o1 o2 o3
|	m0 m1
*	split_lines	split_lines	<in i0> i1> i2> i3>
*	sort0	sort	-s <i0 >o0
*	sort1	sort	-s <i1 >o1
*	sort2	sort	-s <i2 >o2
*	sort3	sort	-s <i3 >o3
*	merge0	sort	-m o0< o1< >m0
*	merge1	sort	-m o2< o3< >m1
*	merge2	sort	-m m0< m1< >out