1int v;
2
3f ()
4{
5  unsigned long *a1, *a2;
6  int vertex2;
7  int c, x1, x2, dx1, dx2, dy1, dy2, e1, e2, s2;
8  unsigned long m, b;
9  int n;
10  unsigned long r;
11  int aba;
12
13  do
14    {
15      if (dx2 >= dy2)
16	dx2 = dx2 % dy2;
17
18      if (dx2 >= dy2)
19	{
20	  s2 = - (dx2 / dy2);
21	  dx2 = dx2 % dy2;
22	}
23    }
24  while (vertex2 / 65536);
25
26  for (;;)
27    {
28      c = x2;
29      a2 = a1;
30      if (v)
31	a2 = 0;
32
33      if (c + n)
34	{
35	  m = b << (c * 8);
36	  *a2 = (*a2 & ~m) | (r & m);
37	  n += c;
38
39	  while (--n)
40	    {
41	      {
42	      }
43	    }
44	}
45
46      a1 = 0;
47      x1 += 0;
48      if (e1 += dx1)
49	e1 -= dy1;
50      x2 += s2;
51      if (e2 += dx2)
52	e2 -= dy2;
53    }
54}
55