This contains three examples of using the assembler
from java and from the script
Look up http://www.blackdown.org/~kbs/jas.html for more
documentation. This only tells you how to run the examples. The
documentation is very Unix centric, I apologize.... I have not had
time to set this up on the PC's yet.
simple.java:
simple.jas:
Unexciting program that generates a do nothing class.
Go up a directory and compile simple.java. Run the program,
which generates the bytecode. Disassemble the bytecode
% (cd ..; javac -d . examples/simple.java; java simple; javap -p -c out)
Same thing, but using the script instead of java directly.
% (cd ..; java scm.driver examples/simple.jas; javap -p -c out)
hworld.java:
hworld.jas:
Print a string in a loop.
% (cd ..; javac -d . examples/hworld.java; java hworld; java out)
As before, but use script instead.
% (cd ..; java scm.driver examples/hworld.jas; java out)
exprcomp.java:
Primitive runtime expression compiler. It translates arithmetic
expressions into bytecode and loads it on the fly as a class, which
is run to get the answer. test.inp is an example of the sort of
arithmetic expressions it translates.
% (cd ..; javac -d . examples/exprcomp.java; java exprcomp examples/test.inp)
exprcomp.jas:
Primitive compiler for jas arithmetic expressions (in jas).
jas is fairly expressive, thats about the only point of this
exercise ;-) Unlike the java version, this gets written out
into a file which you'll have to run to get the results.
% (cd ..; java scm.driver examples/exprcomp.jas; java results)
