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8,627 Commits 8 Branches 121 Tags 496 MiB
641e0c1afc
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85 Commits

Author SHA1 Message Date
Thomas Harte
641e0c1afc Resolve default segment question. 2022-03-10 20:27:35 -05:00
Thomas Harte
bf7faa80c1 Add TODO. 2022-03-10 16:47:54 -05:00
Thomas Harte
a2ae3771eb Add test for switch to Source::IndirectNoBase. 2022-03-10 15:45:56 -05:00
Thomas Harte
673ffc50da Switch to intended compact version of Instruction. 2022-03-10 15:14:50 -05:00
Thomas Harte
6dc9973754 Incorporate length into Instruction. 2022-03-10 07:12:12 -05:00
Thomas Harte
cf6a910630 Handle no-base case directly in existing switch. 2022-03-09 20:20:32 -05:00
Thomas Harte
520baa6ec8 Formalise IndirectNoBase and permit a knowledgable caller to avoid conditionals. 2022-03-09 20:19:40 -05:00
Thomas Harte
bbf925a27e Clarify, unify and correct decoding and encoding of [CALL/RET/JMP][near/far/relative/absolute]. 2022-03-09 16:48:06 -05:00
Thomas Harte
381fd5dbe4 E8 is a relative call. 2022-03-09 16:37:07 -05:00
Thomas Harte
ead8b7437e Remove done TODO. 2022-03-09 15:26:20 -05:00
Thomas Harte
acd9df6745 Fix segment/offset sizes for far calls. 2022-03-09 15:23:43 -05:00
Thomas Harte
f96c051932 Record PUSH immediate operation size. 2022-03-09 14:24:57 -05:00
Thomas Harte
67b2e40fae Fixed: INs and OUTs remain single byte. 2022-03-09 10:51:16 -05:00
Thomas Harte
081a2acd61 Fix shift group operand size. 2022-03-09 09:33:25 -05:00
Thomas Harte
de79acc790 Fix RegAddr/AddrRegs and group 2 decoding. 2022-03-09 08:38:34 -05:00
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