🚀 go-pugleaf

The only clue about how to do graphics with TDI Modula-2 is the source code
of the demo program included in the manual.

The demo program seems to use many more routines than I need to use.  I simply
want to be able to set and clear pixels on the screen (i.e. plot points with
integer coordinates in a 2-dimensional cartesian plane).

Could someone tell me what routines I will need to use, and perhaps even
how to use them?  If someone could send me a program that just plots some
pixels to the screen given their x-y coordinates, that would be sufficient.

I am working on the program for plotting the Mandelbrot set mentioned in
Scientific American, August 1985.  When I finish it I will send source
and object code to net.sources.

Thanks in advance,

Eric Terrell