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And we're using it now in factorial.mu!
In the process I had to fix a couple of bugs in pointer dereferencing.
There are still some limitations:
a) Indexing by a literal doesn't work yet.
b) Only arrays of ints supported so far.
Looking ahead, I'm not sure how I can support indexing arrays by non-literals
(variables in registers) unless the element size is a power of 2.
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This cleans up a bunch of little warts that had historically accumulated
because of my bull-headedness in not designing a grammar up front. Let's
see if the lack of a grammar comes up again.
We now require that there be no space in variable declarations between
the name and the colon separating it from its type.
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Allow comments at the end of all kinds of statements.
To do this I replaced all calls to next-word with next-mu-token.. except
one. I'm not seeing any bugs yet, any places where comments break things.
But this exception makes me nervous.
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Support calling SubX code from Mu. I have _zero_ idea how to make this
safe.
Now we can start writing tests. We can't use commandline args yet. That
requires support for kernel strings.
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