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Parrot
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Parrot Languages
Parrot accepts input as Parrot Abstract Syntax Tree (PAST), Parrot Intermediate Representation (PIR) and Parrot Assembly (PASM). All of these can be generated by compilers that target the Parrot Virtual Machine. Of these, PAST and PIR are human readable. PIR hides away low-level details like function calling conventions whereas PASM doesn't.
You could for example write the typical "Hello, World!" example in PIR:
.sub _main
print "Hello world!\n"
end
.end
You could then turn that into PASM:
parrot -o helloworld.pasm helloworld.pir
The result is:
_main:
print "Hello world!\n"
end
You can run either the PIR or PASM code with parrot with
parrot helloworld.pir
or
parrot helloworld.pasm
and you get
Hello world!
as expected.
