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* 4945Kartik Agaram2019-02-011-0/+0
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* 4938Kartik Agaram2019-01-201-0/+0
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* 4937Kartik Agaram2019-01-201-0/+0
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* 4930Kartik Agaram2019-01-151-0/+0
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* 4929Kartik Agaram2019-01-151-0/+0
| | | | Clean up primitives for converting from/to hex chars.
* 4928Kartik Agaram2019-01-141-0/+0
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* 4927Kartik Agaram2019-01-141-0/+0
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* 4926Kartik Agaram2019-01-141-0/+0
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* 4925Kartik Agaram2019-01-141-0/+0
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* 4923Kartik Agaram2019-01-121-0/+0
| | | | | We want slice-equal? for length-prefixed strings, not null-terminated "kernel" strings.
* 4920Kartik Agaram2019-01-111-0/+0
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* 4916Kartik Agaram2019-01-101-0/+0
| | | | | In the process of building slice primitives I found an out-of-bounds access in write-byte.
* 4913Kartik Agaram2019-01-071-0/+0
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* 4911Kartik Agaram2019-01-061-0/+0
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* 4908Kartik Agaram2019-01-051-0/+0
| | | | | | | | 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.
* 4888Kartik Agaram2018-12-291-0/+0
| | | | We only can't use rm32=5 when mod=0. Totally fine when it's mod=1.
* 4883 - rudimentary memory allocatorKartik Agaram2018-12-281-0/+0
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* 4879Kartik Agaram2018-12-281-0/+0
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* 4865Kartik Agaram2018-12-101-0/+0
| | | | More mnemonic register usage in write-stream.
* 4864Kartik Agaram2018-12-101-0/+0
| | | | Our first buffer overflow!
* 4846Kartik Agaram2018-12-061-0/+0
| | | | | | | | | | | | | | 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.
* 4844Kartik Agaram2018-12-061-0/+0
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* 4841Kartik Agaram2018-12-041-0/+0
| | | | New helper: print an error message, then a numeric byte, then abort.
* 4840Kartik Agaram2018-12-041-0/+0
| | | | New helper: printing a string to a buffered file.
* 4838Kartik Agaram2018-12-041-0/+0
| | | | Better to use EDI as a mnemonic for 'destination'.
* 4837Kartik Agaram2018-12-041-0/+0
| | | | Let's standardize to use opcode 39 rather than 3b by default.
* 4834Kartik Agaram2018-12-041-0/+0
| | | | Fix CI since 4827.
* 4833Kartik Agaram2018-12-041-0/+0
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* 4828 - writing to buffered-fileKartik Agaram2018-12-031-0/+0
| | | | | This is likely a sub-optimal interface, but I'm trying not to agonize. The whole point of Mu is to permit radical changes at any point in time.
* 4827Kartik Agaram2018-12-031-0/+0
| | | | | | | | | I was 'returning' a phantom value from 'write' when the underlying '_write' returns nothing. In general, returning counts of bytes written is not so useful for error checking when my primitives abstract away from that. We'll come back to error signalling later.
* 4822Kartik Agaram2018-12-031-0/+0
| | | | | | | Fix CI. It's kind of a hassle (and wasteful) that I need to redefine 'main' in every single layer.
* 4821Kartik Agaram2018-12-021-0/+0
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* 4810Kartik Agaram2018-11-301-0/+0
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* 4775Kartik Agaram2018-11-241-0/+0
| | | | | | | Start with an exactly corresponding version to Crenshaw 2-1: single-digit numbers. The only change: we assume the number is in hex. The next version now supports multi-digit hex numbers.
* 4774Kartik Agaram2018-11-241-0/+0
| | | | Simplification.
* 4773 - done with crenshaw chapter 2-1Kartik Agaram2018-11-241-0/+0
| | | | In the process I had to fix a couple more bugs in support for disp16 instructions.
* 4768Kartik Agaram2018-11-241-0/+0
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* 4764Kartik Agaram2018-11-231-0/+0
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* 4763 - back to the 'trivial' crenshaw2-1 compilerKartik Agaram2018-11-231-0/+0
| | | | | This time I've ported (and test-driven) 'GetChar' and 'GetNum'. The new tests bring together our new testable interfaces for read() and exit().
* 4756Kartik Agaram2018-11-191-0/+0
| | | | | Long-standing and long-copied typo has been messing with our exit status on test failures.
* 4755 - read-byte (sometimes called getchar)Kartik Agaram2018-11-191-0/+0
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* 4747 - subx: 'read' primitiveKartik Agaram2018-11-181-0/+0
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* 4745Kartik Agaram2018-11-171-0/+0
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* 4743Kartik Agaram2018-11-121-0/+0
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* 4741Kartik Agaram2018-10-301-0/+0
| | | | Extract a helper that we'll need for 'read'.
* 4740Kartik Agaram2018-10-301-0/+0
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* 4736Kartik Agaram2018-10-291-0/+0
| | | | | | | | | We'll use a common stream data structure for input and output streams. Having separate types makes more sense in a more high-level language, where we have type checking and where functions for handling the different types are more concise. But in machine code the sweet spot is more toward fewer types.
* 4732Kartik Agaram2018-10-281-0/+0
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* 4729Kartik Agaram2018-10-281-0/+0
| | | | | | Start injecting all dependencies in the Crenshaw compiler app. In the process I realized the non-fake code path of 'stop' had a bug.
* 4721Kartik Agaram2018-10-241-0/+0
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