| line | l | !l&&r | !l&&!r | condition | 
 
| 505 | 0 | 0 | 0 | $y < 0 or $y > $x | 
 
| 507 | 0 | 0 | 0 | $x < 0 or $y < 0 | 
 
|  | 0 | 0 | 0 | $x < 0 or $y < 0 or $y > $x + 1 | 
 
| 510 | 0 | 0 | 0 | $x < 0 or $x > $y | 
 
| 512 | 0 | 0 | 0 | $y < 0 or $x < 0 | 
 
|  | 0 | 0 | 0 | $y < 0 or $x < 0 or $x > $y + 1 | 
 
| 515 | 0 | 0 | 0 | $x < -1 - $y or $x > $y | 
 
| 521 | 0 | 0 | 0 | $y < 0 or $x < -2 - $y | 
 
|  | 0 | 0 | 0 | $y < 0 or $x < -2 - $y or $x > $y + 1 | 
 
| 609 | 0 | 0 | 0 | $x >= $len || $y >= $len | 
 
| 642 | 0 | 0 | 0 | $parts eq 'octant_up' or $parts eq 'octant_up+1' | 
 
|  | 0 | 0 | 0 | $parts eq 'octant_up' or $parts eq 'octant_up+1' or $parts eq 'wedge' | 
 
|  | 0 | 0 | 0 | $parts eq 'octant_up' or $parts eq 'octant_up+1' or $parts eq 'wedge' or $parts eq 'wedge+1' | 
 
|  | 0 | 0 | 0 | $parts eq 'octant_up' or $parts eq 'octant_up+1' or $parts eq 'wedge' or $parts eq 'wedge+1' or $parts eq 'diagonal' | 
 
|  | 0 | 0 | 0 | $parts eq 'octant_up' or $parts eq 'octant_up+1' or $parts eq 'wedge' or $parts eq 'wedge+1' or $parts eq 'diagonal' or $parts eq 'diagonal-1' | 
 
| 684 | 0 | 0 | 0 | $y2 < 0 or $x2 < $y1 | 
 
| 687 | 0 | 0 | 0 | $x2 < 0 or $y2 < 0 | 
 
|  | 0 | 0 | 0 | $x2 < 0 or $y2 < 0 or $y1 > $x2 + 1 | 
 
| 691 | 0 | 0 | 0 | $x2 < 0 or $y2 < $x1 | 
 
| 694 | 0 | 0 | 0 | $x2 < 0 or $y2 < 0 | 
 
|  | 0 | 0 | 0 | $x2 < 0 or $y2 < 0 or $x1 > $y2 + 1 | 
 
| 698 | 0 | 0 | 0 | $x2 < -1 - $y2 or $x1 > $y2 | 
 
| 701 | 0 | 0 | 0 | $x2 < -2 - $y2 or $x1 > $y2 + 1 | 
 
| 713 | 0 | 0 | 0 | $x2 < 0 or $y2 < 0 | 
 
| 780 | 13 | 0 | 47 | $parts eq 'octant' or $parts eq 'octant_up' | 
 
|  | 0 | 0 | 47 | $parts eq 'octant+1' or $parts eq 'octant_up+1' | 
 
| 849 | 32 | 0 | 106 | $parts eq 'octant' or $parts eq 'octant_up' | 
 
|  | 0 | 0 | 106 | $parts eq 'octant+1' or $parts eq 'octant_up+1' | 
 
| 894 | 68 | 41 | 238 | $parts eq 'wedge' or $parts eq 'diagonal' | 
 
| 902 | 0 | 0 | 84 | $parts eq 'octant+1' or $parts eq 'octant_up+1' | 
 
| 933 | 28 | 15 | 93 | $parts eq 'wedge' or $parts eq 'diagonal' | 
 
|  | 0 | 0 | 78 | $parts eq 'octant+1' or $parts eq 'octant_up+1' | 
 
| 986 | 0 | 0 | 0 | not defined $want_depth or ($want_depth -= 1) < 0 | 
 
| 1044 | 0 | 0 | 0 | $n == 0 || $n == $nwidth - 1 | 
 
| 1072 | 0 | 0 | 0 | $n == 0 or $n == $nwidth - 1 | 
 
| 1113 | 0 | 0 | 0 | not ref $d or $d < 1000000 | 
 
| 1131 | 0 | 0 | 0 | not ref $d or $d < 1000000 |