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* 7526Kartik Agaram2021-01-161-0/+0
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* 7329 - snapshot: advent day 4 part 2Kartik Agaram2020-12-041-0/+0
| | | | | | | | | | | | I've found two bugs in SubX libraries: 1. next-word had an out-of-bounds read 2. next-word was skipping comments, because that's what I need during bootstrapping. I've created a new variant called next-raw-word that doesn't skip comments. These really need better names. We're now at the point where 4b.mu has the right structure and returns identical result to 4a.mu.
* 7238 - mu.subx: final restrictions on 'addr'Kartik Agaram2020-11-151-0/+0
| | | | I had to tweak one app that wasn't following the rules.
* 7225Kartik Agaram2020-11-111-0/+0
| | | | | | | Both manual tests described in commit 7222 now work. To make them work I had to figure out how to copy a file. It requires a dependency on a new syscall: lseek.
* 7154Kartik Agaram2020-11-011-0/+0
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* 7138 - type-check array 'length' instructionKartik Agaram2020-10-291-0/+0
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* 7101 - tile: remove quotes when evaluating stringsKartik Agaram2020-10-251-0/+0
| | | | This found several bugs due to me not checking for null strings.
* 7032Kartik Agaram2020-10-141-0/+0
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* 6946 - print floats somewhat intuitively in hexKartik Agaram2020-10-041-0/+0
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* 6908 - compiling all floating-point operationsKartik Agaram2020-09-301-0/+0
| | | | | We don't yet support emulating these instructions in `bootstrap`. But generated binaries containing them run natively just fine.
* 6783Kartik Agaram2020-09-161-0/+0
| | | | An extra test that should have been in commit 6781.
* 6781 - new app: RPN (postfix) calculatorKartik Agaram2020-09-151-0/+0
| | | | This was surprisingly hard; bugs discovered all over the place.
* 6733 - read utf-8 'grapheme' from byte streamKartik Agaram2020-08-281-0/+0
| | | | | | No support for combining characters. Graphemes are currently just utf-8 encodings of a single Unicode code-point. No support for code-points that require more than 32 bits in utf-8.
* 6622 - new syscalls: time and ntimeKartik Agaram2020-07-081-0/+0
| | | | | As a side-effect I find that my Linode can print ~100k chars/s. At 50 rows and 200 columns per screen, it's 10 frames/s.
* 6604 - new appKartik Agaram2020-07-011-0/+0
| | | | | | https://archive.org/details/akkartik-2min-2020-07-01 In the process I found a bug, added a new syscall, and 'emulated' it.
* 6597Kartik Agaram2020-06-291-0/+0
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* 6596Kartik Agaram2020-06-291-0/+0
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* 6595Kartik Agaram2020-06-291-0/+0
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* 6594 - start standardizing the meaning of 'print'Kartik Agaram2020-06-291-0/+0
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* 6520 - new app: parse-intKartik Agaram2020-06-141-0/+0
| | | | | | Several bugs fixed in the process, and expectation of further bugs is growing. I'd somehow started assuming I don't need to have separate cases for rm32 as a register vs mem. That's not right. We might need more reg-reg Primitives.
* 6508 - support null exit-descriptorKartik Agaram2020-06-101-0/+0
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* 6507 - use syscall names everywhereKartik Agaram2020-06-101-0/+0
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* 6409 - primitives for text-mode UIsKartik Agaram2020-05-271-0/+0
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* 6406 - primitive 'copy-handle'Kartik Agaram2020-05-251-0/+0
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* update binariesKartik Agaram2020-05-221-0/+0
| | | | CI should start passing again now.
* handle nulls in lookupKartik Agaram2020-05-181-0/+0
| | | | | | | | | Cleaner abstraction, but adds 3 instructions to our overhead for handles, including one potentially-hard-to-predict jump :/ I wish I could have put the alloc id in eax for the comparison as well, to save a few bytes of instruction space. But that messes up the non-null case.
* support 'fake' handles allocated staticallyKartik Agaram2020-05-181-0/+0
| | | | | | | | Mystery solved of why the syntax sugar phases don't work even though they don't use any functions whose signatures changed in the migration to handles. The answer: they use the Registers table, and it needs to use handles rather than raw strings.
* support 'fake' handles allocated staticallyKartik Agaram2020-05-181-0/+0
| | | | | | | | | | | | | | | | | | | | | | Mystery solved of why the syntax sugar phases don't work even though they don't use any functions whose signatures changed in the migration to handles. The answer: they use the Registers table, and it currently doesn't use handles. Rather than create a whole new set of functions that operate on addresses, I'm going to create fake handles that are never intended to be reclaimed. Which raises the question of the best way to do that. I'd like to continue using string syntax, so I'm going to use a prefix in the payload that can also be rendered as a string. But all the printable characters start with 0x20, and we don't currently have escape sequences for null or any other non-printable characters. I _could_ use newlines, but that seems overly clever. So instead I'll once again not worry about some hypothetical problem with running out of alloc-ids, and just carve out half of the id space that can't be used for real alloc ids. Ascii doesn't use the most significant bit of bytes, so it seems like a natural separation.
* Rebuild phases of self-hosted SubX translatorKartik Agaram2020-05-181-0/+0
| | | | For this one commit we need to bootstrap ourselves with subx_translate_debug.
* 6213Kartik Agaram2020-04-261-0/+0
| | | | Some minor tweaks while preparing presentation to Mek's Junto group.
* 6208Kartik Agaram2020-04-221-0/+0
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* 6182 - start of support for safe handlesKartik Agaram2020-04-031-0/+0
| | | | | | | | | | | | | | So far it's unclear how to do this in a series of small commits. Still nibbling around the edges. In this commit we standardize some terminology: The length of an array or stream is denominated in the high-level elements. The _size_ is denominated in bytes. The thing we encode into the type is always the size, not the length. There's still an open question of what to do about the Mu `length` operator. I'd like to modify it to provide the length. Currently it provides the size. If I can't fix that I'll rename it.
* 6181Kartik Agaram2020-04-031-0/+0
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* 6153 - switch 'main' to use Mu stringsKartik Agaram2020-03-151-0/+0
| | | | | | | | | | | At the SubX level we have to put up with null-terminated kernel strings for commandline args. But so far we haven't done much with them. Rather than try to support them we'll just convert them transparently to standard length-prefixed strings. In the process I realized that it's not quite right to treat the combination of argc and argv as an array of kernel strings. Argc counts the number of elements, whereas the length of an array is usually denominated in bytes.
* 6085Kartik Agaram2020-03-061-0/+0
| | | | Support parsing ints from strings rather than slices.
* 6083Kartik Agaram2020-03-061-0/+0
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* 6070Kartik Agaram2020-02-291-0/+0
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* 6064Kartik Agaram2020-02-271-0/+0
| | | | Fix CI.
* 6000 - clean up after no-local branchesKartik Agaram2020-02-091-0/+0
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* 5948 - branching to named blocksKartik Agaram2020-01-291-0/+0
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* 5898 - strengthen slice-empty? checkKartik Agaram2020-01-191-0/+0
| | | | | | | | | | | Anytime we create a slice, the first check tends to be whether it's empty. If we handle ill-formed slices here where start > end, that provides a measure of safety. In the Mu translator (mu.subx) we often check for a trailing ':' or ',' and decrement slice->end to ignore it. But that could conceivably yield ill-formed slices if the slice started out empty. Now we make sure we never operate on such ill-formed slices.
* 5887 - reorganize libraryKartik Agaram2020-01-141-0/+0
| | | | | | | 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.
* 5847 - literal inputsKartik Agaram2019-12-311-0/+0
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* 5804Kartik Agaram2019-12-081-0/+0
| | | | | Try to make the comments consistent with the type system we'll eventually have.
* 5803Kartik Agaram2019-12-071-0/+0
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* 5792Kartik Agaram2019-12-051-0/+0
| | | | | Fix a bug in one test: it checks eax when the component under test returns nothing. It's been just accidentally passing all these months.
* 5782 - fix a widespread bug with Heap-sizeKartik Agaram2019-11-301-0/+0
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* 5778Kartik Agaram2019-11-291-0/+0
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* 5769 - support uppercase hex in SubXKartik Agaram2019-11-281-0/+0
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* 5752Kartik Agaram2019-11-181-0/+0
| | | | | | | Support binary operations with reg/mem and reg operands. Everything is passing. However, the self-hosting translator now generates some discrepancies compared to the C++ translator :(