(Simple straight line case to test "perfect" tangent case)
(Setup code)
G20 G90 G64 G17
(Test code begins here)

O100 sub
#1=0
#2=0.0005
G91
o101 while [#1 LT 1000]
  X[#2] Y[#2/4.0]
  #1 = [#1+1] (increment the test counter)
o101 endwhile
G90
X0 Y0 Z0
O100 endsub

G0 X0 Y0 Z0
G1 X0 F999
O100 call
G0 X0
O100 call

M2