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* 5460Kartik Agaram2019-07-2414-12/+24
| | | | | | | | | | | A little more resizing of buffers. apps/hex.subx is now building an identical binary. I'm now aborting on allocation failures. That requires disabling a couple of tests. (I'm not quite confident enough of this decision to delete them outright.) I want to treat all segfaults as bugs, and machine code is no place to add boilerplate checks for return values of standard library functions.
* 5459Kartik Agaram2019-07-231-4/+6
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* 5458Kartik Agaram2019-07-222-29/+30
| | | | | | Ensure we don't create overly long lines. Now this works: $ ./diff_ntranslate 0*.subx apps/subx-common.subx
* 5457Kartik Agaram2019-07-222-0/+2
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* 5456Kartik Agaram2019-07-221-0/+0
| | | | Fix CI.
* 5455Kartik Agaram2019-07-226-247/+130
| | | | | Clean up. All apps now translating correctly except for the phases of the self-hosted translator. Next step: SubX-in-SubX in SubX-in-SubX.
* 5454Kartik Agaram2019-07-228-1/+1
| | | | Bugfix fifteen -- on the C++ side.
* 5453Kartik Agaram2019-07-222-13/+107
| | | | All that debugging and it turns out the bug is on the C++ side!
* 5452Kartik Agaram2019-07-222-120/+161
| | | | | | | | | | | | | | Snapshot while debugging survey.subx by print. I can see the error in 1 minute with this command: subx run apps/survey < a.pack (where a.pack is obtained from `ntranslate 049*.subx 05[0-8]*.subx`) By contrast, using the trace requires 4.5 minutes: subx --trace run apps/survey < a.pack It generates a trace of 4.4GB with almost 83M lines. The trace takes 2 minutes to load.. oops, I forgot to load labels with `--debug`.
* 5451Kartik Agaram2019-07-222-1/+99
| | | | | | | | | | | | | | Even though the standard library is building and passing tests, the binaries it generates aren't exactly bit for bit identical with the originals. Comparing using `diff_ntranslate`, it looks like the data segment starting address isn't computed right in survey.subx (`compute-addresses`) when I start translating layer 058. Deleting some tests brings the code segment to a p_offset where bits 8-11 (the lowest 4 bits excluding the lowermost byte) are cleared and everything works. However, if bits 8-11 are set, then they don't make it to p_vaddr and p_paddr. Tried reproducing with a unit test, but the unit test passes fine.
* 5450Kartik Agaram2019-07-222-0/+12
| | | | A couple of scripts that help debug discrepancies in the self-hosted translator.
* 5449Kartik Agaram2019-07-221-1/+4
| | | | Stop rebuilding example programs just because subx_bin got recreated.
* 5448Kartik Agaram2019-07-222-6/+14
| | | | Make the output of the `pack` phase a little easier to read.
* 5447Kartik Agaram2019-07-221-4/+8
| | | | Fix a timeout in CI.
* 5446Kartik Agaram2019-07-221-4/+4
| | | | Really fix CI.
* 5445Kartik Agaram2019-07-221-23/+28
| | | | Fix CI.
* 5444Kartik Agaram2019-07-221-0/+0
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* 5443 - standard library is now self-hostedKartik Agaram2019-07-228-5/+17
| | | | | | | Translates 5k lines of input in 26 seconds. I'm not sure why I need to grow the label table. It was already 512 entries long, and I'm only using 373 so far.
* 5442Kartik Agaram2019-07-228-2/+74
| | | | | | | | | We can now translate layers 49-72 using the self-hosted translator. The translator has now demonstrated translation over 4k lines. Most verbose phase output is 325KB, even if the final binary is 15KB. Emulation is too slow now, so I'm back to debug by print on a Linux machine.
* 5441Kartik Agaram2019-07-221-0/+24
| | | | | Now our debug cycle passes through `translate` or `ntranslate`. Make sure we rebuild phases whenever we need to.
* 5440Kartik Agaram2019-07-222-18/+18
| | | | Fix CI.
* 5439Kartik Agaram2019-07-211-9/+0
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* 5438 - raise error on uppercase hexKartik Agaram2019-07-2112-7/+72
| | | | | | | | | | | | | | | | | | We can now translate layers 49-56 using the self-hosted translator (`translate` and `ntranslate`). As a follow-up to commit 5404, the self-hosted translator is a little more strict than the C++ translator in 3 places: a) All .subx files must define a data segment. b) All .subx files must define an `Entry` label. c) All numbers must be in *lowercase* hex. In all cases, where programs work with the C++ translator but violate the self-hosted translator's assumptions, we must make sure we raise errors rather than silently emit bad code.
* 5437Kartik Agaram2019-07-2113-13/+13
| | | | Break a dependency from `print-int32` to `from-hex-char`.
* 5436 - support newlines in dquotesKartik Agaram2019-07-214-8/+85
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* 5435 - redo 5426Kartik Agaram2019-07-214-6/+99
| | | | | We can now translate layers 49-55 using translate and ntranslate. Next step is to support '\n' in dquotes.subx.
* 5434Kartik Agaram2019-07-216-2/+18
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* 5433Kartik Agaram2019-07-216-2/+2
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* 5432Kartik Agaram2019-07-211-0/+0
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* 5431 - starting to translate std libKartik Agaram2019-07-201-0/+33
| | | | | | | | | | Currently failing at layer 54: ``` $ time ./translate 049memory_layout.subx 05[0-4]*.subx; ./subx run a.elf test leaky-get-or-insert-slice: too many segments ``` Emulation is also damn slow. But running in native mode is fast.
* 5430 - all examples passingKartik Agaram2019-07-206-41/+333
| | | | | We now have a new pass called 'tests' which code-generates a new function called 'run-tests', just like the C++ layer `tests.cc`.
* 5429Kartik Agaram2019-07-209-0/+0
| | | | Fix CI.
* 5428Kartik Agaram2019-07-201-10/+22
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* 5427Kartik Agaram2019-07-202-18/+1
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* 5426Kartik Agaram2019-07-208-19/+23
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* 5425Kartik Agaram2019-07-202-0/+14
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* 5424Kartik Agaram2019-07-191-12/+12
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* 5423Kartik Agaram2019-07-191-1/+1
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* 5422Kartik Agaram2019-07-196-12/+52
| | | | | Various buffer sizes needed to be grown for ex11. But the next bottleneck is that we need to code-generate run-tests.
* 5421Kartik Agaram2019-07-191-0/+24
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* 5420Kartik Agaram2019-07-191-0/+29
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* 5419Kartik Agaram2019-07-193-40/+552
| | | | | | | | | | | Bugfix fourteen: we need different address computation logic for code vs data labels. It's really about different categories of instructions having different address computation logic. This subtle distinction will make good error messages hard. But that's a problem for later. Now there's just one example program not translating.
* 5418 - vim tweaksKartik Agaram2019-07-191-1/+12
| | | | | When running a single test, stop always opening the trace. Instead create a separate affordance for that, and also have it reuse windows.
* 5417Kartik Agaram2019-07-183-9/+8
| | | | Clean up.
* 5416Kartik Agaram2019-07-183-1/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Figured out what's going in with bug fourteen: displacement operands aren't always used relative to the PC. Does this mean I need to track instruction boundaries past pack? :'( No, I just need different logic for labels in code vs data segments. This was an interesting bug for reminding me of the difference between the emulator-level trace and the application-level trace. The former has 1.5 million lines, while the latter has a dozen. Luckily, just dumping the latter immediately made obvious what the issue was. Though this experience does suggest some further ideas for debugging tools: slice trace by line and phase slice trace by start and end label debug UI for SubX translator 2D layout: rows = lines of code; columns = translator phases each 'cell' in this layout contains a list of log lines shows what came in, what was emitted easily collapse any cell These are domain-specific tools. Special-cased to the SubX translator phases.
* 5415Kartik Agaram2019-07-174-8/+56
| | | | | | | | Bugfix thirteen: displacement calculations were wrong because current offset was not being updated properly as words were being read and emitted. Now 10/12 example programs are translated correctly.
* 5414Kartik Agaram2019-07-171-4/+4
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* 5413Kartik Agaram2019-07-173-6/+104
| | | | | | | Bugfix twelve: ModR/M was being incorrectly computed. This is one of two problems with subx/examples/ex3, so no new passing examples.
* 5412Kartik Agaram2019-07-171-3/+3
| | | | Fix CI.
* 5411Kartik Agaram2019-07-171-1/+1
| | | | Fix CI.
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