| Commit message (Collapse) | Author | Age | Files | Lines |
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Clean up.
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Clean up.
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I carefully logged the segment a label is declared in but forgot to
actually save it in the table. This has been a theoretic concern for
some time, but I've never seen it actually happen until now. SubX is
just too low level.
Now I get past the first two phases but code generation fails to find
the 'Entry' label.
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Snapshot at a random moment, showing a new debugging trick: hacking on
the C++ level to dump memory contents on specific labels.
For some reason label 'x' doesn't have a segment assigned by the time we
get to compute-addresses.
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Continuation of commit 6f6d458fcd to support unsigned comparisons in
32-bit jumps.
Once again, no tests.
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The final integration test-convert-computes-addresses is still failing.
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Now they're in the order you expect to see them at runtime: first you
see a segment header, then you see labels.
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move trace dump to before checks
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'curr-segment-name' is now a string, and it's stored in a register
rather than a global.
Paradoxically, this leaks *less* than before. Before, every call to
`get-or-insert-slice` leaked memory. Now we leak one string for every
new segment. Which is trivial.
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Pseudocode is a little more truthful now about what variables are on the
stack.
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It's a slice into the 'line' stream. But we want to preserve the current
segment name across lines.
Let's leak some memory.
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Make the trace a little more consistent.
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I changed the test a little to make it obvious.
Basically there's no way we can compute the segment offset correctly
without knowing the segment name in the previous assertion.
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The pseudocode was a mess here :/ I was saving the segment-offset but
tracing the file-offset.
Segments need file offsets (to tweak their starting address).
Labels need segment offsets (to add to segment starting address).
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I think we're calling the wrong variant here.
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This was why grep required the `-a` argument in vimrc.vim.
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Another batch of incorrectly signed conditional jumps. (Follow-up to
commit 5180.)
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Fix infinite loop in the 2 remaining failing tests; now it's a segfault.
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Some nooks and crannies will need light final debugging with xxd, but
emit-hex-output covers most of the logic.
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Only failures now are the first two tests in survey.subx.
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Leads to a bad error message.
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Stop dumping huge traces on error. We can always rerun with --trace.
Though perhaps we should just dump the trace automatically on error.
Not bothering thinking about that right now.
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Everywhere we check if something is true, we check it by comparing
against 0, not 1.
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