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* 4773 - done with crenshaw chapter 2-1Kartik Agaram2018-11-241-1/+0
| | | | In the process I had to fix a couple more bugs in support for disp16 instructions.
* 4695Kartik Agaram2018-10-141-2/+2
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* 4694Kartik Agaram2018-10-131-1/+1
| | | | Check for duplicate docstrings.
* 4693Kartik Agaram2018-10-131-1/+1
| | | | | | | | Add the standard mnemonic for each opcode. We aren't ever going to have complete docs of the subset of the x86 ISA we support, so we need to help readers cross-correlate with the complete docs.
* 4665Kartik Agaram2018-10-051-11/+11
| | | | | Some syscalls expect null-terminated strings while others get lengths. Be clear about this distinction.
* 4648Kartik Agaram2018-10-011-0/+1
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* 4619 - new syscall: mmap()Kartik Agaram2018-09-291-0/+17
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* 4614 - redo simulated RAMKartik Agaram2018-09-291-14/+1
| | | | | | | | | | | Now simulated 'Memory' isn't just a single flat array. Instead it knows about segments and VMAs. The code segment will always be first, and the data/heap segment will always be second. The brk() syscall knows about the data segment. One nice side-effect is that I no longer need to mess with Memory initialization regardless of where I place my segments.
* 4613Kartik Agaram2018-09-291-1/+1
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* 4552Kartik Agaram2018-09-201-6/+13
| | | | | More useful trace if we mess up args to a syscall and pass a non-pointer where a pointer is expected.
* 4522Kartik Agaram2018-08-141-3/+3
| | | | Don't use trace infrastructure if you're just going to immediately exit.
* 4520 - several syscalls for filesKartik Agaram2018-08-131-0/+78
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* 4469Kartik Agaram2018-08-031-0/+32
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