#include "defs.h"


/* add up wire length */

L_INT sumwir()
{
	L_INT	sum;
	REG PIN pp, np;
	INT hix, lox, hiy, loy;

	sum = 0;
	scannets(pp)
	{
		if (HEAD(pp) == 0) continue;
		hix = pp->x;
		hiy = pp->y;
		for (np = CHAIN(pp); np != pp; np = CHAIN(np))
		{
			if (np->x & UNPLAC) continue;
			if ((hix & UNPLAC) == 0)
			{
				lox = abs(hix - np->x);
				loy = abs(hiy - np->y);
				sum = sum + lox + loy;
			}
			hix = np->x;
			hiy = np->y;
		}
	}
	return(sum);
}