O912(SQUARE with G12.1 T32 mode, Parameter P16 bit3=0)
M1
(No G109L1, G53 or M302 because I was running this as a sub of a mazatrol program)
M200
T023023
S4053 M203 M8
G00 C0.0 (C must be at 0.0 before G12.1)
G12.1 (All XY moves after this line will be converted by the MACHINE into Radius and angles)
G00 X0.0 Y-2.0 Z0.1 (example: machine really moved to C270.0 X2.0) 
G01 Z0.0 F8.0 
X-1.0 Y-1.0 F16.213
X0.0 Y0.0
X1.0 Y-1.0
X0.0 Y-2.0 (back to C270.0 X2.0)
G00 Z0.1
G13.1
G28 U0 M205 M9 
G28 W0
M99 (no M30 because I was running this as a sub of a mazatrol program)