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Readme.amiga
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1994-02-04
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Ethan Dicks 4-Feb-1992
<erd@kumiss.infinet.com>
The AmigaDOS version of Accrete is as unaltered a port as I could manage. The
most significant changes were in the random number generator initialization
routine and in the definitions relating to just how large an int is on the
Amiga. Unlike the Apple ][ version, this version is compact and fairly quick.
What takes 15 minutes on a 1Mhz 6502, takes less than a minute on an A3000/25.
Given this runtime speed, I saw no real need for a version that supported
the 68881 and 68882 math-coprocessors.
Just as in the original, this program dumps its output to a file named
"New.System" but it does *not* create an icon, even if launched from the
Workbench. There is presently no way to override this default. There are
a couple of compile-time options, however. The proprocessor symbols, SILENT
and VERBOSE are just as they sound. The default mode prints a single dot with
each attempt to create and resolve a planetessimal, the silent mode prints
abolutely nothing during a run, while the verbose mode spews forth with a
couple of (short) lines about each attempt to inject proto-planet into the
solar system. Accrete works from either the CLI or the Workbench. Note
that if you launch Accrete from the Workbench, you will have to close the
console window yourself.
Scientific references to the techniques used to generate planets and their
star systems are provided in the code and in the other read.me files. I
made no attempt to verify the correctness of any of the mathematical code; I
simply fixed up the word size problems as well as the non-random random
number problems.
I found no copyright notices in the source code I started with, so I didn't
bother to put additional notices in any of it. The only file *I* created
from scratch was the Makefile and the only distribution restrictions I have
placed on it prohibit commercial uses, and are mentioned (briefly) in that file.
Share and Enjoy,
-ethan