This is a utility program that calls Dos Interrupt 21h
function 36h to determine the disk space on a selected Drive.
This program was conceived as I was trying to figure out how
to display a Double Word number on the screen. There is a
good example of the 'ole' famous "PUSH POP" routine for
printing decimal numbers on the screen.
     This is mainly meant for beginners to try and learn
something. There are some simple macros as well as an
Interrupt intercept routine. Some people might not agree with
the way I set the Interrupt back to its original value but it
works. When you check a Floppy drive the motor doesn't shut
off until you press a key. I also turn the cursor off during
operation and then turn it back on when done.
     All of this might seem simple to an experienced
programmer but it sure wasn't simple while I was trying to
figure it out.
     Questions or Comments can be directed by way of
COMPUSERVE to   TOM FOX  102143,2522