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* 5180Kartik Agaram2019-05-161-1/+1
| | | | | | | Clean up some old TODOs related to our pre-mmap limitations. Also caught another case of using the wrong comparison. When comparing addresses, one must always use unsigned rather than signed jump instructions.
* 5148Kartik Agaram2019-05-091-8/+0
| | | | | Snapshot of incomplete work to have the memory allocator use `mmap` rather than `brk`. C tests pass, but the SubX layers are still broken.
* 5059Kartik Agaram2019-04-051-1/+1
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* 4981 - no, go back to 3 phasesKartik Agaram2019-02-181-7/+0
| | | | | | | | | | | | | Considering how much trouble a merge phase would be (commit 4978), it seems simpler to just add the extra syntax for controlling the entry point of the generated ELF binary. But I wouldn't have noticed this if I hadn't taken the time to write out the commit messages of 4976 and 4978. Even if we happened to already have linked list primitives built, this may still be a good idea considering that I'm saving quite a lot of code in duplicated entrypoints.
* 4973Kartik Agaram2019-02-151-1/+1
| | | | | Support immediate operands in the data segment in all the ways we support them in the code segment.
* 4961Kartik Agaram2019-02-141-1/+1
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* 4950Kartik Agaram2019-02-031-0/+207