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
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
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
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
35a66c03c2
Add the SETs.
2022-03-07 10:32:34 -05:00
Thomas Harte
1ea9d3faf8
Introduce additional forms of IMUL.
2022-03-07 09:05:22 -05:00
Thomas Harte
8a0902a83b
Adapts existing opcodes for 32-bit parsing.
2022-03-05 13:52:07 -05:00
Thomas Harte
8ee62b4789
Simplify address size semantics.
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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
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
9f12c009d6
Correct data size when accessing address registers.
2022-02-27 19:45:03 -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
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
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.
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(and permit copy assignment)
2022-02-20 17:54:53 -05:00
Thomas Harte
75d2d64e7c
Albeit that it requires nuanced shift/roll semantics, eliminates CL constant.
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Shifts and rolls are already slightly semantically special for being undefined for values greater than 8/16/32 — i.e. in some implementations they don't even use the entirety of CL, just the low five bits. Which makes me feel a little better.
The upside of no ambiguity between eCX size 1 and CL justifies the trade.
2022-02-20 17:52:19 -05:00
Thomas Harte
a5113998e2
Accept that IN and OUT are going to have special semantics, thereby kill ::AX and ::DX.
2022-02-20 17:15:01 -05:00
Thomas Harte
4d2e8cd71d
Adds a presently-unreachable step for SIB consumption.
2022-02-19 18:00:27 -05:00
Thomas Harte
30b355fd6f
Chips away further at the legacy register names.
2022-02-18 18:37:47 -05:00
Thomas Harte
12df7112da
Starts adjusting the concept of a Source.
2022-02-17 11:32:09 -05:00
Thomas Harte
7ceb3369eb
Attempts decoding of the 80186 set.
2022-02-09 17:51:48 -05:00
Thomas Harte
ae21726287
Splits 80186 additions from 80286; fills in a touch more.
2022-02-01 20:38:10 -05:00
Thomas Harte
a4da1b6eb0
Begins enumerating the 80286 and 80386 instructions.
2022-01-31 09:11:06 -05:00
Thomas Harte
5f413a38df
Switches all American-style dates.
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I'd failed to configure my new computer appropriately, it seems.
2021-01-16 22:09:19 -05:00
Thomas Harte
3c20e1f037
Adds files for the M50740 and corrects namespace errors elsewhere.
2021-01-15 21:30:30 -05:00
Thomas Harte
9c2c918760
Better sorts by function, corrects TEST description.
2021-01-15 21:07:02 -05:00
Thomas Harte
47d20699d8
Completes list, ensures POP acts as documented.
2021-01-15 20:48:31 -05:00
Thomas Harte
e8ce70dccb
Chips further away at documentation.
2021-01-15 18:52:59 -05:00
Thomas Harte
fa4938f29c
Establishes the reason I'm sort-of documenting these.
2021-01-15 18:27:55 -05:00
Thomas Harte
ddb4bb1421
Better plans project layout.
2021-01-15 18:16:01 -05:00
