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* 4802Kartik Agaram2018-11-3026-828/+828
| | | | | | | | | | | | | | | | 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 Agaram2018-11-3024-2981/+2981
| | | | Reindent all SubX code to make some room for the new comment style.
* 4800Kartik Agaram2018-11-302-10/+11
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* 4799Kartik Agaram2018-11-301-4/+4
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* 4798Kartik Agaram2018-11-301-28/+6
| | | | Another attempt at picking colors for the 5 different levels of comments.
* 4797Kartik Agaram2018-11-304-4/+4
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* 4796Kartik Agaram2018-11-3028-3234/+3214
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* 4795Kartik Agaram2018-11-281-3/+3
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* 4794Kartik Agaram2018-11-281-1/+1
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* 4793Kartik Agaram2018-11-281-9/+46
| | | | | Experimenting with putting code examples higher up in the Readme. Thanks Pelle Hjek for the feedback: http://arclanguage.org/item?id=20875.
* 4792Kartik Agaram2018-11-281-2/+2
| | | | Thanks Pelle Hjek for the feedback: http://arclanguage.org/item?id=20870
* 4791Kartik Agaram2018-11-271-13/+14
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* 4790Kartik Agaram2018-11-271-3/+3
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* 4789Kartik Agaram2018-11-271-4/+4
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* 4788Kartik Agaram2018-11-272-2/+2
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* 4787Kartik Agaram2018-11-272-180/+194
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* 4786Kartik Agaram2018-11-261-1/+1
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* 4785Kartik Agaram2018-11-261-1/+1
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* 4784Kartik Agaram2018-11-261-1/+1
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* 4783Kartik Agaram2018-11-261-0/+46
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* 4782Kartik Agaram2018-11-2652-4034/+6662
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* 4781Kartik Agaram2018-11-261-9/+11
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* 4780Kartik Agaram2018-11-2621-12/+12
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* 4779Kartik Agaram2018-11-261-54/+95
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* 4778 - entirely rewritten ReadmeKartik Agaram2018-11-255-135/+266
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* 4777Kartik Agaram2018-11-251-7/+7
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* 4776Kartik Agaram2018-11-254-100/+90
| | | | | | | | | | | | | 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 Agaram2018-11-245-213/+857
| | | | | | | 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 Agaram2018-11-243-23/+2
| | | | Simplification.
* 4773 - done with crenshaw chapter 2-1Kartik Agaram2018-11-245-15/+128
| | | | In the process I had to fix a couple more bugs in support for disp16 instructions.
* 4772Kartik Agaram2018-11-242-2/+4
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* 4771Kartik Agaram2018-11-242-0/+7
| | | | | | | I stopped handling disp16 at some point, and using instructions with such an operand messes up segment alignment when generating ELF binaries. I don't test my ELF generation. This is a sign that maybe I should start.
* 4770Kartik Agaram2018-11-241-6/+6
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* 4769Kartik Agaram2018-11-241-9/+37
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* 4768Kartik Agaram2018-11-243-0/+240
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* 4767Kartik Agaram2018-11-243-50/+50
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* 4766Kartik Agaram2018-11-241-3/+4
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* 4765Kartik Agaram2018-11-231-1/+2
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* 4764Kartik Agaram2018-11-232-5/+221
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* 4763 - back to the 'trivial' crenshaw2-1 compilerKartik Agaram2018-11-233-2/+426
| | | | | This time I've ported (and test-driven) 'GetChar' and 'GetNum'. The new tests bring together our new testable interfaces for read() and exit().
* 4762Kartik Agaram2018-11-231-5/+8
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* 4761Kartik Agaram2018-11-234-12/+11
| | | | | Bugfix: I forgot about ELF segment offsets when implementing VMAs. Eventually segments grew large enough that I started seeing overlaps.
* 4760Kartik Agaram2018-11-214-0/+8
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* 4759Kartik Agaram2018-11-208-10/+10
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* 4758Kartik Agaram2018-11-201-4/+4
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* 4757Kartik Agaram2018-11-206-40/+46
| | | | | | Let's start highlighting all global variables in Red. Assembly programming has a tendency to over-use them. They're a necessary evil, but we should minimize the number of functions that access them.
* 4756Kartik Agaram2018-11-196-4/+4
| | | | | Long-standing and long-copied typo has been messing with our exit status on test failures.
* 4755 - read-byte (sometimes called getchar)Kartik Agaram2018-11-193-0/+243
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* 4754 - allow data segment to refer to variablesKartik Agaram2018-11-193-13/+55
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* 4753Kartik Agaram2018-11-191-5/+5
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