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* 5009Kartik Agaram2019-03-201-2/+2
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* 4981 - no, go back to 3 phasesKartik Agaram2019-02-181-1/+2
| | | | | | | | | | | | | 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 Agaram2019-02-151-10/+10
| | | | | Support immediate operands in the data segment in all the ways we support them in the code segment.
* 4966Kartik Agaram2019-02-141-6/+5
| | | | Standardize how we show register allocation decisions.
* 4961Kartik Agaram2019-02-141-11/+11
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* 4934Kartik Agaram2019-01-161-1/+1
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* 4933Kartik Agaram2019-01-161-1/+1
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* 4888Kartik Agaram2018-12-291-28/+28
| | | | We only can't use rm32=5 when mod=0. Totally fine when it's mod=1.
* 4886Kartik Agaram2018-12-281-2/+2
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* 4879Kartik Agaram2018-12-281-6/+6
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* 4847Kartik Agaram2018-12-061-4/+4
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* 4840Kartik Agaram2018-12-041-1/+1
| | | | New helper: printing a string to a buffered file.
* 4837Kartik Agaram2018-12-041-1/+1
| | | | Let's standardize to use opcode 39 rather than 3b by default.
* 4832Kartik Agaram2018-12-041-0/+2
| | | | | | Let's start adding ':end' labels in all functions, just because it helps us visualize where function calls end in traces, thanks to the '--map' commandline argument.
* 4826Kartik Agaram2018-12-031-1/+1
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* 4821Kartik Agaram2018-12-021-41/+0
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* 4819Kartik Agaram2018-12-021-3/+3
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* 4818Kartik Agaram2018-12-021-6/+6
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* 4815Kartik Agaram2018-12-021-4/+9
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* 4813Kartik Agaram2018-12-011-1/+1
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* 4812Kartik Agaram2018-11-301-1/+1
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* 4808 - clean up comments in all subx filesKartik Agaram2018-11-301-110/+106
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* 4802Kartik Agaram2018-11-301-210/+210
| | | | | | | | | | | | | | | | Some automated commenting cleanup. Still needs more careful manual scanning. sed -i 's/^# 1-3/# . 1-3/' *.subx */*.subx sed -i 's/^# op/# . op/' *.subx */*.subx sed -i 's/# vim/# . . vim/' *.subx */*.subx sed -i 's/^ # push args/ # . . push args/' *.subx */*.subx sed -i 's/^ # discard args/ # . . discard args/' *.subx */*.subx sed -i 's/^ # call/ # . . call/' *.subx */*.subx sed -i 's/^ # prolog/ # . prolog/' *.subx */*.subx sed -i 's/^ # epilog/ # . epilog/' *.subx */*.subx sed -i 's/^ # save registers/ # . save registers/' *.subx */*.subx sed -i 's/^ # restore registers/ # . restore registers/' *.subx */*.subx sed -i 's/ operand / register /' *.subx */*.subx
* 4801Kartik Agaram2018-11-301-568/+568
| | | | Reindent all SubX code to make some room for the new comment style.
* 4800Kartik Agaram2018-11-301-6/+6
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* 4799Kartik Agaram2018-11-301-4/+4
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* 4797Kartik Agaram2018-11-301-1/+1
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* 4776Kartik Agaram2018-11-251-1/+1
| | | | | | | | | | | | | Crenshaw compiler now runs natively as well. It turns out I was misreading the Intel manual, and the jump instructions that I thought take disp16 operands actually take disp32 operands by default on both i686 and x86_64 processors. The disp16 versions are some holdover from the 16-bit days. This was the first time I've used one of these erstwhile-disp16 instructions, but I still haven't tested most of them. We'll see if we run into future issues.
* 4775Kartik Agaram2018-11-241-0/+836
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.
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