Draw_Sweep
Vertical_Sweep_Init
Vertical_Sweep_Span: y=1, x1=227,x2=560  ,  e1=4,e2=8
  VSS: Changing target[0] from 0 to 15
  VSS: Changing target[1] from 0 to 128
Vertical_Sweep_Step
Vertical_Sweep_Span: y=2, x1=163,x2=496  ,  e1=3,e2=7
  VSS: Changing *target from 0 to 31
Vertical_Sweep_Step
Vertical_Sweep_Span: y=3, x1=99,x2=432  ,  e1=2,e2=6
  VSS: Changing *target from 0 to 62
Vertical_Sweep_Step
Vertical_Sweep_Span: y=4, x1=35,x2=368  ,  e1=1,e2=5
  VSS: Changing *target from 0 to 124
Vertical_Sweep_Step
Draw_Sweep
Horizontal_Sweep_Init
Horizontal_Sweep_Drop: y=0, x1=289,x2=291  ,  e1=320,e2=256
  HSD:  ras.precision=64, ras.dropOutControl=1
    -> R.Stub test: (left->next == right) = 0
    -> R.Stub test: (left->height <= 0) = 0
    -> R.Stub test: (left->flags & Overshoot_Top) = 16
    -> R.Stub test: (x2 - x1 >= ras.precision_half) = 0
    -> L.Stub test: (right->next == left) = 1
    -> L.Stub test: (left->start == y) = 1
    -> L.Stub test: (left->flags & Overshoot_Bottom) = 0
    -> L.Stub test: (x2 - x1 >= ras.precision_half) = 0
      leftmost stub test bailing
Horizontal_Sweep_Step
Horizontal_Sweep_Span: y=1, x1=225,x2=291
Horizontal_Sweep_Step
Horizontal_Sweep_Span: y=2, x1=161,x2=291
Horizontal_Sweep_Step
Horizontal_Sweep_Span: y=3, x1=97,x2=291
Horizontal_Sweep_Step
Horizontal_Sweep_Span: y=4, x1=34,x2=291
Horizontal_Sweep_Step
Horizontal_Sweep_Span: y=5, x1=6,x2=291
Horizontal_Sweep_Step
Horizontal_Sweep_Span: y=6, x1=6,x2=241
Horizontal_Sweep_Step
Horizontal_Sweep_Span: y=7, x1=6,x2=178
Horizontal_Sweep_Step
Horizontal_Sweep_Span: y=8, x1=6,x2=114
Horizontal_Sweep_Step
Horizontal_Sweep_Drop: y=9, x1=6,x2=50  ,  e1=64,e2=0
  HSD:  ras.precision=64, ras.dropOutControl=1
    -> R.Stub test: (left->next == right) = 1
    -> R.Stub test: (left->height <= 0) = 1
    -> R.Stub test: (left->flags & Overshoot_Top) = 16
    -> R.Stub test: (x2 - x1 >= ras.precision_half) = 1
    -> L.Stub test: (right->next == left) = 0
    -> L.Stub test: (left->start == y) = 0
    -> L.Stub test: (left->flags & Overshoot_Bottom) = 0
    -> L.Stub test: (x2 - x1 >= ras.precision_half) = 1
  HSD: Changing bits[0] from 0 to 64
Horizontal_Sweep_Step