Thomas Harte
ae4a588de3
Adjust semantics to avoid culling end of relevant RETs.
2023-09-28 15:24:15 -04:00
Thomas Harte
2d882d2153
Switch shift/roll semantics to reduce extension words and for sanity generally.
...
37 failures.
2023-09-27 16:40:46 -04:00
Thomas Harte
5368f789f6
Shuffle list slightly.
2023-09-26 17:30:27 -04:00
Thomas Harte
b03b408984
Give the decoder responsibility for sanity-checking repetitions.
...
This may avoid some spurious extension words.
2023-09-26 17:29:20 -04:00
Thomas Harte
0a0051eb59
I've just been inconsistent with POP. Stop being so.
...
71 failures from 288 tests.
2023-09-26 15:16:41 -04:00
Thomas Harte
87097c44b9
Curate list of known failures; apply easiest fixes.
...
Now at 157 failures of 288 applicable tests.
2023-09-25 11:39:12 -04:00
Thomas Harte
5fd98e9833
Add an ignore list.
...
Leaves 180 failures amongst the valid 306 instructions.
2023-09-22 22:56:33 -04:00
Thomas Harte
787e9e770e
Retain baseless addresses correctly.
2023-09-22 17:27:27 -04:00
Thomas Harte
c8c0c3ca6d
Default segment is ::DS if there was no base.
2023-09-22 17:03:40 -04:00
Thomas Harte
587ec81900
Improve string output, better to find actual errors.
...
Still at 194/324 failures, but a lot of them seem reasonable.
2023-09-22 11:24:33 -04:00
Thomas Harte
9f63db991c
Capture default segments, fix base/index confusion.
2023-09-22 11:07:09 -04:00
Thomas Harte
7ebecd2f41
Add notes to self, finally figuring out segment issue.
2023-09-19 23:27:42 -04:00
Thomas Harte
02fcaf0dbd
JCXZ seems to be preferred over JPCX.
2023-09-19 13:56:48 -04:00
Thomas Harte
a7cf7d3183
Resolve LOOPNE, LOOPE, etc.
2023-09-19 13:55:19 -04:00
Thomas Harte
9b3199d97b
Reduce failures to 205/324.
2023-09-19 13:45:19 -04:00
Thomas Harte
e5dfc882cb
Agree that JZ/JNZ are clearer (for me) of the synonyms.
2023-09-19 13:38:08 -04:00
Thomas Harte
3582d2c9e3
Start to beef up operand count list.
2023-09-18 16:34:52 -04:00
Thomas Harte
da953fdf0d
Complete 8086 operation list; standardise enum order.
2023-09-18 16:25:04 -04:00
Thomas Harte
710017ada2
Largely resolve the operation-name problem.
2023-09-18 15:57:26 -04:00
Thomas Harte
f8dc5b8ebc
Attempt to get close on index + base addresses.
2023-09-17 17:05:19 -04:00
Thomas Harte
3e09afbb59
Remove errant square bracket.
2023-06-21 11:57:09 -04:00
Thomas Harte
8578dfbf22
Eliminate various other errant spaces.
2023-05-16 16:40:09 -04:00
Thomas Harte
2b56b7be0d
Simplify namespace syntax.
2023-05-10 16:02:18 -05:00
Thomas Harte
1725894fe9
Eliminate redundant CMPSD, CDQ, CWDE.
...
Also removes IBTS for now, as I'm unclear where it should sit in the opcode map.
2022-03-12 12:24:44 -05:00
Thomas Harte
f1c4864016
Eliminate INSD.
2022-03-12 11:37:21 -05:00
Thomas Harte
e6bd265729
Explain which BOUNDs operand is which.
2022-03-11 20:34:28 -05:00
Thomas Harte
c22e8112e7
Expand exposition.
2022-03-11 20:30:56 -05:00
Thomas Harte
44252984c2
Eliminate INT3 special case.
2022-03-11 14:03:46 -05:00
Thomas Harte
4b4f92780e
Shuffle extension word order.
...
The primary objective here is simplifying index calculation, but as per the note it does also potentially open up options with regard to packing in the future.
2022-03-11 13:24:45 -05:00
Thomas Harte
c744a97e3c
Ensure no extensions for default constructed Instruction.
2022-03-11 11:55:26 -05:00
Thomas Harte
572dc40e6b
Allow assignments.
2022-03-11 09:47:23 -05:00
Thomas Harte
641e0c1afc
Resolve default segment question.
2022-03-10 20:27:35 -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
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.
...
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
