“InstCirc” is an awesome utility. Not your run of the mill, flag-setting basic utility, this program implements Bresenham's Circle Algorithm to provide lightning speed. It draws circles faster and more accurately than the algorithm implemented by TI.

The only limitations are

1. It is limited to on-screen coordinates like Text() and pxl-On() instead of the normal coordinates used by Line() and Circle().
2. The Asm() command used to call it is slow.