| Commit message (Collapse) | Author | Age | Files | Lines |
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Layers 0-89 are used in self-hosting SubX.
Layers 90-99 are not needed for self-hosting SubX, and therefore could
use transitional levels of syntax sugar.
Layers 100 and up use all SubX syntax sugar.
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Finalize design for type trees.
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When I created it I was conflating two things:
a) needing to refer to just the start, rather than the whole, and
b) counting indirections.
Both are kinda ill-posed. Now Mu will have just `addr` and `handle` types.
Normal types will translate implicitly to `addr` types, while `handle`
will always require explicit handling.
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The current prototype doesn't really use floating point; drop the
guardrails there.
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Follow stupid GNU convention, because why not:
https://www.gnu.org/prep/standards/html_node/Releases.html
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Stop requiring '--debug' in 'bootstrap run'. Now it's smart enough to turn
on when needed.
This creates some small chance of reading stale debug info for the wrong
binary, but in practice that hasn't been an issue.
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Give the bootstrap C++ program a less salient name.
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Just clarified for myself why `subx translate` and `subx run` need to share
code: emulation supports the tests first and foremost.
In the process we clean up our architecture for levels of layers. It's
a good idea but unused once we reconceive of "level 1" as just part of
the test harness.
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Deemphasize details of x86 addressing modes. I want people using SubX's
syntax sugar now.
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Move script to create a Linux-based boot image into a sub-directory.
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Move script to create a Soso boot image into a sub-directory.
I'm trying to streamline newcomer attention to just a couple of use cases.
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Rename a few scripts to be more consistent.
I'm also starting to feel the urge to bud off `subx run` into its own program,
say tools/emulate_x86. It doesn't really rely on the SubX notation at all.
And then I could rename `subx translate` to `translate_subx_bootstrap`.
Only problem: the commands in the Readme get verbose. But the Readme is
gonna need surgery soon anyway to put translate_mu front and center.
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I can now run this program:
fn main -> result/ebx: int {
result <- do-add 3 4
}
fn do-add a: int, b: int -> result/ebx: int {
result <- copy a
result <- add b
}
We still can't define local variables, but can write any programs involving
ints by passing in enough arguments for temporaries.
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Let's start putting r32 first in compare instructions that need it. Ordering
there is quite subtle and of great import.
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