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8,609 Commits 8 Branches 121 Tags 496 MiB
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148 Commits

Author SHA1 Message Date
Thomas Harte
21d4838322 Fix current implementation of data_segment. 
As far as it goes.
 2022-03-08 17:08:21 -05:00
Thomas Harte
926a373591 Extend SIB test, correct decoder. 2022-03-08 15:03:37 -05:00
Thomas Harte
a954f23642 Attempt 32-bit modregrm + SIB parsing. 2022-03-08 14:39:49 -05:00
Thomas Harte
41a104cc10 Adds special test/control/debug MOVs. 
This'll do; it's not ideal but avoids bloating up the `Source` enum.
 2022-03-07 17:04:05 -05:00
Thomas Harte
f0b4971c7b Correct SHLD format. 2022-03-07 16:39:02 -05:00
Thomas Harte
8e669a32a3 Take a stab at group 8. 2022-03-07 16:34:56 -05:00
Thomas Harte
0e16e7935e Correct double reference to Group 6. 2022-03-07 16:26:17 -05:00
Thomas Harte
7ea84d9a4e Add MOVZX, MOVSX. 2022-03-07 16:25:44 -05:00
Thomas Harte
7313c89dec Add BT, BTS, BTR, BTC, BSF, BSR. 2022-03-07 16:23:25 -05:00
Thomas Harte
35a66c03c2 Add the SETs. 2022-03-07 10:32:34 -05:00
Thomas Harte
bbb3168bae Adds the missing shift group segues at c0 and c1. 2022-03-07 09:18:59 -05:00
Thomas Harte
1ea9d3faf8 Introduce additional forms of IMUL. 2022-03-07 09:05:22 -05:00
Thomas Harte
4479be4fd0 Add the two immediate PUSHes. 2022-03-06 14:28:41 -05:00
Thomas Harte
91a6bf671d Also 'easy': LSS, LFS, LGS. 
Though perhaps I'm off on LES and LDS?
 2022-03-06 09:28:43 -05:00
Thomas Harte
49b5889d9e 0x8c is available on the 8086. 2022-03-06 09:24:59 -05:00
Thomas Harte
ede61ae130 Flag up TODOs, for easier in-editor navigation. 2022-03-05 17:48:01 -05:00
Thomas Harte
7a79111767 Add the easiest 80386 extensions: PUSH/POP FS/GS and longer conditional jumps. 2022-03-05 17:32:21 -05:00
Thomas Harte
6432521b9d Correct two references to JP that should be JL. 2022-03-05 17:16:32 -05:00
Thomas Harte
65f578fe61 Add notes on all missing opcodes. 2022-03-05 17:16:13 -05:00
Thomas Harte
3a8eb4a4f0 Add 80386 segment overrides. 2022-03-05 17:03:46 -05:00
Thomas Harte
eb180656bb Fix $8e data size, add $8c. 2022-03-05 17:00:48 -05:00
Thomas Harte
1afcbba218 Clarify sign extension availability. 2022-03-05 16:44:26 -05:00
Thomas Harte
8a0902a83b Adapts existing opcodes for 32-bit parsing. 2022-03-05 13:52:07 -05:00
Thomas Harte
dfb312fee6 Make column and row meanings overt. 2022-03-05 11:56:08 -05:00
Thomas Harte
11bb594fa2 Sets up [ignored] memory and data size prefixes. 2022-03-02 20:23:35 -05:00
Thomas Harte
8e3ae2c78f Add opcode map as documentation. 2022-03-02 20:00:21 -05:00
Thomas Harte
4b4135e35a Correct #undef. 2022-03-01 18:23:24 -05:00
Thomas Harte
d1148c4cab Switch to constexpr function, for guaranteed semantics. 2022-03-01 17:30:41 -05:00
Thomas Harte
8ee62b4789 Simplify address size semantics. 
Since it'll no longer be a mode-dependant toggle, but a fully-retained value.
 2022-03-01 17:29:26 -05:00
Thomas Harte
5e7a142ff1 Fix is_write errors, update comment, add additional source for asserts. 2022-03-01 16:51:54 -05:00
Thomas Harte
2c816db45e Refactor: (i) to expose effective address calculation; and (ii) to include address size in Instruction. 2022-03-01 09:36:37 -05:00
Thomas Harte
b920507f34 Double down on AddressT, add an assert on memory_mask. 2022-02-28 10:03:58 -05:00
Thomas Harte
afbc57cc0c Incorporate displacement, switch macro flag. 2022-02-28 09:53:23 -05:00
Thomas Harte
9f12c009d6 Correct data size when accessing address registers. 2022-02-27 19:45:03 -05:00
Thomas Harte
84ac68a58b Fix indirect memory read/write 2022-02-27 18:43:00 -05:00
Thomas Harte
27d1df4699 Introduce enough of a DataPointerResolver test to build but fail. 2022-02-27 18:27:58 -05:00
Thomas Harte
0d7a7dc7c9 Introduce DataPointerResolver, to codify the meaning of DataPointer and validate that enough information is present. 2022-02-27 11:25:02 -05:00
Thomas Harte
b8bff0e7f5 Double up eSP, eBP, eSI, eDI and AH, CH, DH, BH enums, as per Intel's encoding. 2022-02-24 05:16:15 -05:00
Thomas Harte
60bf1ef7ea Rename SourceSIB to DataPointer, extend to allow for an absent base. 2022-02-23 08:28:20 -05:00
Thomas Harte
95976d8b58 Add missing #include. 2022-02-21 16:33:58 -05:00
Thomas Harte
ecb20cc29b Improve tabbing. 2022-02-21 16:09:03 -05:00
Thomas Harte
b6183e86eb Clarifies model tests by macro; adds the address size toggle. 2022-02-21 16:06:02 -05:00
Thomas Harte
229af0380c This is normatively called the address size. 2022-02-21 15:52:16 -05:00
Thomas Harte
b968a662d3 Dump notes on intended Instruction layout, add memory size flag. 2022-02-21 15:48:58 -05:00
Thomas Harte
159e869fe6 Justifies the templatisation. 2022-02-21 15:33:08 -05:00
Thomas Harte
76814588b8 Template Instruction on its content size. 2022-02-21 12:36:03 -05:00
Thomas Harte
1934c7faa2 Switch Decoder into a template. 2022-02-21 12:21:57 -05:00
Thomas Harte
9e9e160c43 Eliminate Ind[BXPlusSI/etc] in favour of specifying everything via a ScaleIndexBase. 2022-02-21 11:45:46 -05:00
Thomas Harte
546b4edbf1 Ensure ScaleIndexBase can be used constexpr; add note-to-self on indexing table. 2022-02-20 19:22:28 -05:00
Thomas Harte
63d8a88e2f Switch to holding the SIB as a typed ScaleIndexBase. 
(and permit copy assignment)
 2022-02-20 17:54:53 -05:00