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The result isn't an identical binary to before, and it segfaults when
run. But it's bugfix seven.
A couple of places where we make .subx files a little more strict:
a) All .subx files must define a data segment. Even if they have no
data.
b) All .subx files must define an `Entry` label for the binary to start
at. Earlier we used to default to the start of the code label. That's
not too hard to add; we'd just need to:
i) rename `get` to `get-or-abort`
ii) clone a third variant of `get-or-insert` called `get` that returns
null if the key is not found.
iii) use `get` rather than `get-or-abort` when looking up the `Entry`
label.
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Some automated commenting cleanup. Still needs more careful manual scanning.
sed -i 's/^# 1-3/# . 1-3/' *.subx */*.subx
sed -i 's/^# op/# . op/' *.subx */*.subx
sed -i 's/# vim/# . . vim/' *.subx */*.subx
sed -i 's/^ # push args/ # . . push args/' *.subx */*.subx
sed -i 's/^ # discard args/ # . . discard args/' *.subx */*.subx
sed -i 's/^ # call/ # . . call/' *.subx */*.subx
sed -i 's/^ # prolog/ # . prolog/' *.subx */*.subx
sed -i 's/^ # epilog/ # . epilog/' *.subx */*.subx
sed -i 's/^ # save registers/ # . save registers/' *.subx */*.subx
sed -i 's/^ # restore registers/ # . restore registers/' *.subx */*.subx
sed -i 's/ operand / register /' *.subx */*.subx
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Thanks Pelle Hjek for the feedback: http://arclanguage.org/item?id=20870
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Start requiring a '-o' flag to designate the output binary when translating.
Things currently get funky if you pass in multiple inputs, but that's ok.
This is the first step to supporting multiple input files for a single
output binary.
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When I started SubX I imagined that being able to write machine code directly
was a feature. Now it's just a hole I haven't bothered closing yet.
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