Dr. Galfo's Integer BASIC Compiler for the Apple
II
This is an Integer BASIC Compiler that was developed in the early
80's by Dr. Chris Galfo. It was initially self published and
later released by Synergistic Software. Back in the 1980's
this compiler was reportedly used during development of some
Microprose games. Compiled programs execute about six times
faster than with WOZ's original BASIC Interpreter.
Dr. Galfo sent me original Floppies and Documentation for the
Integer BASIC Compiler.
IBC (Integer BASIC Compiler) came on two floppies. The first
floppy is not copy protected and contained utilities and the
executive. The second floppy contained the compiler
itself. As a form of copy protection, the compiler floppy had
only two formatted tracks (6 and 7). This prevented a
user from copying the disk using normal filesystem aware
methods. The compiler dsk image was created using a hacked
version of ADT that ignored disk errors. All the unformatted
tracks of the dsk image contain an all zeros pattern. It seems
to work in emulation, even though there is data on all tracks.
Physical floppies created with this dsk image also seem to work.
Dr. Galfo's Integer BASIC Compiler
software for the Apple II (system dsk)
Dr. Galfo's Integer BASIC Compiler software
for the Apple II (compiler dsk)
Dr. Galfo also sent me a single IBC floppy disk. This is a
special non-copy protected version of the software that he had
created years ago.
Dr. Galfo's Apple II Integer BASIC Compiler
software (1 dsk image)
Dr Galfo sent me hard copies of his documentation and a floppy with
the original documentation. I extracted the
documentation from the floppy in order to produce the following pdf
file. The pdf file is formatted as much as possible in the
style of the original hard copy documentation.
Dr. Galfo's Integer
BASIC Compiler documentation
Dr. Galfo told me that there is no commercial value, so feel free to
distribute to other vintage computer enthusiasts.
Also see my page of Dr. Galfo's HAM software.
