82 Commits

Author	SHA1	Message	Date
Thomas Harte	40af162214	Be overt about what's here to aid with printing only.	2023-10-04 22:15:13 -04:00
Thomas Harte	92c46faf84	Add SETMO and SETMOC.	2023-09-29 22:28:23 -04:00
Thomas Harte	ff9237be9f	Decode SALC.	2023-09-29 22:06:42 -04:00
Thomas Harte	ef5ee8cf94	Include missing context on JMP/CALL far. ... Zero failing tests amongst official opcodes.	2023-09-29 14:57:08 -04:00
Thomas Harte	1a6c8a2aed	Add outputters for IN and OUT. ... 2 failures remaining.	2023-09-29 09:39:51 -04:00
Thomas Harte	b76899f2bc	Undo broken extension-word DS assumption. ... 8 failures.	2023-09-28 22:17:14 -04:00
Thomas Harte	245919e67d	Resolve REPNE and whitespace issues.	2023-09-28 22:01:12 -04:00
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