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* fix bad terminology: grapheme -> code pointKartik K. Agaram2021-08-291-20/+21
| | | | | | | | | | Unix text-mode terminals transparently support utf-8 these days, and so I treat utf-8 sequences (which I call graphemes in Mu) as fundamental. I then blindly carried over this state of affairs to bare-metal Mu, where it makes no sense. If you don't have a terminal handling font-rendering for you, fonts are most often indexed by code points and not utf-8 sequences.
* width-aware drawing primitivesKartik K. Agaram2021-08-291-15/+24
| | | | No support yet for drawing wide graphemes.
* .Kartik K. Agaram2021-08-281-3/+7
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* .Kartik K. Agaram2021-08-131-3/+3
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* slack: ctrl-f for page-downKartik K. Agaram2021-08-111-6/+3
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* .Kartik K. Agaram2021-07-261-1/+1
| | | | | Smoked out some issues by rendering a single frame of Game of Life. Incredibly slow.
* start truncating trace linesKartik K. Agaram2021-05-231-5/+5
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* shell: reduce trace depth in sandboxKartik K. Agaram2021-05-221-0/+7
| | | | We'll gradually make this more dynamic.
* .Kartik Agaram2021-05-201-2/+4
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* a second place with lousy storage managementKartik K. Agaram2021-05-191-4/+16
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* .Kartik K. Agaram2021-05-141-11/+0
| | | | | Move abort to SubX. We'll need to do some unsafe stuff to display the call stack here.
* shell: start of 'print' primitiveKartik K. Agaram2021-04-101-0/+22
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* undo previous commitKartik K. Agaram2021-04-051-21/+33
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* snapshot: stupid debugging sessionKartik K. Agaram2021-04-051-33/+21
| | | | | | | | | | | | | | | I spent a while building a little keyboard scancode printer: $ ./translate ex1.mu && qemu-system-i386 disk.img ..and wondering why up-arrow was 0x48 in hex but 724 in decimal. I ended up paranoidly poking at a bunch of crap (though there _is_ a cool chromatography-based debugging technique in 126write-int-decimal.subx) before I realized: - 724 just has one extra digit over the correct answer - the 0xe0 scan code is a 3-digit number in decimal -- and the final digit is '4' There's nothing actually wrong.
* update vocabulary documentationKartik K. Agaram2021-03-081-1/+1
| | | | Top-level and linux/ now have separate vocabulary.md files.
* 7842 - new directory organizationKartik K. Agaram2021-03-031-0/+466
Baremetal is now the default build target and therefore has its sources at the top-level. Baremetal programs build using the phase-2 Mu toolchain that requires a Linux kernel. This phase-2 codebase which used to be at the top-level is now under the linux/ directory. Finally, the phase-2 toolchain, while self-hosting, has a way to bootstrap from a C implementation, which is now stored in linux/bootstrap. The bootstrap C implementation uses some literate programming tools that are now in linux/bootstrap/tools. So the whole thing has gotten inverted. Each directory should build one artifact and include the main sources (along with standard library). Tools used for building it are relegated to sub-directories, even though those tools are often useful in their own right, and have had lots of interesting programs written using them. A couple of things have gotten dropped in this process: - I had old ways to run on just a Linux kernel, or with a Soso kernel. No more. - I had some old tooling for running a single test at the cursor. I haven't used that lately. Maybe I'll bring it back one day. The reorg isn't done yet. Still to do: - redo documentation everywhere. All the README files, all other markdown, particularly vocabulary.md. - clean up how-to-run comments at the start of programs everywhere - rethink what to do with the html/ directory. Do we even want to keep supporting it? In spite of these shortcomings, all the scripts at the top-level, linux/ and linux/bootstrap are working. The names of the scripts also feel reasonable. This is a good milestone to take stock at.