| Commit message (Collapse) | Author | Age | Files | Lines |
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This seems like the final helper we need for Phase 2. Now to build the
business logic itself.
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Bugfix: has-metadata? was corrupting registers
Seems uneconomic to write tests for stuff like this. Assembly is just not
the right layer to try to come up with a general solution or process. Keep
running your code and wait to find signs of breakage.
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Improve syntax highlighting in the Readme.
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Clean up primitives for converting from/to hex chars.
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Restore update_html
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We want slice-equal? for length-prefixed strings, not null-terminated "kernel"
strings.
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In the process of building slice primitives I found an out-of-bounds access
in write-byte.
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In the process of building next-token I finally added some support for a
debugging situation I've found myself in a couple of times: wondering "what
changed this memory location"?
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Improve error checking to warn on unexpected displacements as well.
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Fix CI.
a) Update canonical binaries.
b) Fix an out-of-bounds access in `clear-stream`. This also required supporting
a new instruction in `subx run` to load an imm8 into rm8.
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The lines within '{}' can now be turned into a macro like `E_X = deref(E_X)`,
parameterizing the register being modified.
Assumes the input is in a register but also saved elsewhere, so it's safe
to clobber and replace with the result.
Compare commit 4894. Used to take 9 instructions, 8 of them making loads/stores.
Now it's 6 instructions, 4 of them loads/stores (the one non-local load
is unchanged, of course). Key is to not consume more registers so we don't
have to push/pop them.
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I've agonized over this for a week; high time I saved a snapshot.
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Finally really fix the CI failure of commit 4894.
This is a remainder to forget my knowledge of stack addresses in the SubX
VM when writing SubX programs. Otherwise my programs will work in the VM
but not natively. The only assumptions a SubX program should make about
its segment addresses are what's encoded in the ELF binary. Thanks to
https://en.wikipedia.org/wiki/Address_space_layout_randomization, it can't
know anything else.
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