| Commit message (Collapse) | Author | Age | Files | Lines |
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This time I've ported (and test-driven) 'GetChar' and 'GetNum'. The new
tests bring together our new testable interfaces for read() and exit().
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Long-standing and long-copied typo has been messing with our exit status
on test failures.
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Extract a helper that we'll need for 'read'.
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We'll use a common stream data structure for input and output streams.
Having separate types makes more sense in a more high-level language, where
we have type checking and where functions for handling the different types
are more concise. But in machine code the sweet spot is more toward fewer
types.
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Start injecting all dependencies in the Crenshaw compiler app.
In the process I realized the non-fake code path of 'stop' had a bug.
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Initial sketch of a dependency-injected wrapper around the exit() syscall.
I don't have the primitives yet, just a sketch of how they should work
-- and a passing test for non-local jumps without support for passing the
exit status to the caller.
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Extract a helper for appending strings to raw buffers.
I'd been resisting this idea, but it actually turns out to be a pretty
clean abstraction in the end.
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Start using write() instead of _write().. and we promptly find a typo when
dealing with real file descriptors.
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All tests now once again run the same natively and on VM.
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Turns out the tests for 'trace' have been broken in native mode since the
original commit (4674). Dangers of running my tests on Darwin, where I
can't run them natively.
The test failures didn't get flagged on CI because I'd forgotten to update
the exit code of the factorial app in commit 4664. At least that's fixed
in this commit.
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subx: append to trace
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Standardize on hyphens in all names.
And we'll use colons for namespacing labels in functions.
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Make segment management a little more consistent between initial segments
and add-on segments (using `mmap`).
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I'm still trying to figure out what the defaults should be. At the moment
you have to explicitly pass in every file you want loaded into the output
binary. Maybe that control is a good thing. The examples need no libraries
so far.
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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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More calling convention tweaks.
Use EBP to get consistently at parameters and locals.
Always put the first function argument closest to EBP.
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Get the calling convention right, per http://www.cs.virginia.edu/~evans/cs216/guides/x86.html
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Add the test harness to the crenshaw compiler. Though we aren't calling
it yet. But that's because we aren't actually doing anything useful yet.
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