| Commit message (Collapse) | Author | Age | Files | Lines |
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We want slice-equal? for length-prefixed strings, not null-terminated "kernel"
strings.
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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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Bug in my linkify tool introduced in commit 4891.
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Couple more tweaks to html rendering:
a) SubX definitions no longer link redundantly to themselves. This long-standing
issue turns out to be tractable to solve for SubX files since the syntax
is so simple.
b) Fix links to SubX definitions in other directories. I forgot that I
have to always generate tags from the directory of the file being linkified.
c) Fix link colors. Before we lost all syntax highlighting for functions
and Globals. Now they maintain their colors, just add an underline.
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a) Switch to a light background.
b) Linkify calls in .subx files.
c) Keep all colorization in the Vim colorscheme, get rid of hacky special-cases
in update_html.
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More mnemonic register usage in write-stream.
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Our first buffer overflow!
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I'm imagining 3 core stages total:
1. convert text hex bytes -> binary (✓)
2. pack and reorder operands
3. compute label addresses
(Not including extras like error-checking.)
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Clean up a few things:
a) Call scan-next-byte in hex.subx with the right number of args. Turns
out tests continue to work fine if they never use the other args.
b) Tear down a test for 'stop' in the right order. Not important since we
have no EBP to restore. But can still be misleading.
c) Have 'check-ints-equal' return nothing. Handy for it to not mess up
EAX. I never use the result anyway, and the name also is imperative suggesting
callers won't expect a return value.
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Making progress on hex1 (http://web.archive.org/web/20061108010907/http://www.rano.org/bcompiler.html)
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New helper: print an error message, then a numeric byte, then abort.
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New helper: printing a string to a buffered file.
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Better to use EDI as a mnemonic for 'destination'.
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Let's standardize to use opcode 39 rather than 3b by default.
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Fix CI since 4827.
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Let's start adding ':end' labels in all functions, just because it helps
us visualize where function calls end in traces, thanks to the '--map'
commandline argument.
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New helper: printing a byte in textual (hex) form.
This required adding instructions for bitwise shift operations.
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