From: (csaw)

I have put together an html reference manual for Chipmunk Basic,
which is a freeware interpreted Basic provided by Ronald Nicholson.
He describes it as “an old-fashioned Basic interpreter”, but he keeps
adding features that are not very old-fashioned, like IAC, graphics
extensions, object-oriented type and class definition, domain name
resolution, and fast Fourier transform. Chipmunk Basic can be
downloaded from Mr. Nicholson’s Chipmunk Basic Home Page,

The reference manual is also available there, but in a simplified form
without enhanced navigation. I have posted the complete package to

-Steve Wise