152 Commits

Author	SHA1	Message	Date
Thomas Harte	42edc46887	Add invalid-opcode exception; transcribe has-code table.	2025-03-30 13:29:20 -04:00
Thomas Harte	fd31d07f41	Begin division of memory into linear and segmented mappings.	2025-03-24 22:58:19 -04:00
Thomas Harte	6ad88101f1	Saunter up to a circular issue: segments needs memory access.	2025-03-24 17:31:17 -04:00
Thomas Harte	ce7ff13bbe	Proceed to a local assert on LMSW.	2025-03-22 21:57:56 -04:00
Thomas Harte	5d1e3b6c93	Create a home for descriptors.	2025-03-19 14:20:50 -04:00
Thomas Harte	fe6a88c5df	Install [L/S][I/G]DT wiring.	2025-03-18 22:11:28 -04:00
Thomas Harte	32c88da6c4	Iterate towards LGDT/LIDT. ... Specifically: add a means to get just an indirect address; add an enum for descriptor tables; add an `ldt` function for the global and interrupt tables, which currently just authorises the access and then stops.	2025-03-18 18:22:04 -04:00
Thomas Harte	3d19d0816b	Do something for SMSW.	2025-03-16 22:05:14 -04:00
Thomas Harte	73e843abd3	Assert on some hopefully unreachables.	2025-03-12 22:03:12 -04:00
Thomas Harte	9df6d535e2	Patch up enough to get an 80286 performer compilable.	2025-03-04 13:52:02 -05:00
Thomas Harte	2c2216afae	Further eliminate file-relative includes.	2025-02-28 13:18:48 -05:00
Thomas Harte	45f850adae	Improve constness.	2025-02-27 15:47:06 -05:00
Thomas Harte	3a0f4a0bfc	Improve constness, formatting.	2024-12-01 18:09:19 -05:00
Thomas Harte	8b88d1294d	Remove errant spaces.	2024-12-01 09:04:32 -05:00
Thomas Harte	a3d37640aa	Switch include guards to #pragma once.	2024-01-16 23:34:46 -05:00
Thomas Harte	3e328bed61	Be overt about jump size, albeit without internal rigour.	2023-12-24 14:11:41 -05:00
Thomas Harte	f50c45cc1a	Treat 'invalid' as a silent failure.	2023-12-01 15:35:51 -05:00
Thomas Harte	233ec7b818	Soften some warnings.	2023-11-16 10:57:17 -05:00
Thomas Harte	f83d2a8740	Take a swing at ENTER.	2023-11-14 16:23:24 -05:00
Thomas Harte	aafa7de536	Implement LEAVE, almost.	2023-11-14 11:39:36 -05:00
Thomas Harte	ac826f90c3	Formalise a separate manager of segments.	2023-11-14 10:56:00 -05:00
Thomas Harte	6c405680f2	Implement PUSHA, POPA.	2023-11-14 10:42:06 -05:00
Thomas Harte	1552500b10	Implement BOUND.	2023-11-13 22:33:46 -05:00
Thomas Harte	60cec9fc67	Expand commentary.	2023-11-13 11:45:17 -05:00
Thomas Harte	3a782faaf3	Ensure shoutouts upon LDS, LES and any far jump/call/int.	2023-11-10 22:58:59 -05:00
Thomas Harte	e61dc0466f	Add callout for tracking segment register changes.	2023-11-10 22:22:32 -05:00
Thomas Harte	79b126e6bb	Add route for tracking segment register changes.	2023-11-10 22:11:52 -05:00
Thomas Harte	800c76a4fe	Capture and respond to IDIV_REP.	2023-11-09 11:55:04 -05:00
Thomas Harte	5f1ea6c04c	Unify AAA and AAS.	2023-11-08 22:30:39 -05:00
Thomas Harte	8d2a2bcf4a	Unify DAA and DAS.	2023-11-08 22:26:48 -05:00
Thomas Harte	d7bb1a9ee1	Tidy up and comment a little further.	2023-11-08 11:23:21 -05:00
Thomas Harte	9566a8de67	Split up the ungainly PerformImplementation.hpp.	2023-11-08 10:52:36 -05:00
Thomas Harte	91b7d55871	Get strict about writeables.	2023-11-07 10:13:18 -05:00
Thomas Harte	e56e49a318	Fix SUB/SBB writes.	2023-11-07 10:09:04 -05:00
Thomas Harte	0262875088	Claw back to building.	2023-11-07 09:58:42 -05:00
Thomas Harte	2bed2c2c5c	Further simplify syntax.	2023-11-07 09:14:42 -05:00
Thomas Harte	2af774601f	Temporarily disentangle Memory and access internals; start to be overt in PerformImplementation.	2023-11-06 16:04:31 -05:00
Thomas Harte	009915f4de	Start promotion of ReturnType.	2023-11-05 21:42:22 -05:00
Thomas Harte	f96c33102a	Add documentation.	2023-11-04 22:22:50 -04:00
Thomas Harte	5739862dbb	Add specific entryway for preauthorised writes.	2023-11-03 15:36:30 -04:00
Thomas Harte	ebdf10525c	Fix parameter case.	2023-11-02 17:00:22 -04:00
Thomas Harte	83850d7596	Commute: Status -> Flags as per usual x86 naming.	2023-11-02 16:55:38 -04:00
Thomas Harte	770803b073	Be more careful as to authorisation.	2023-11-02 15:37:59 -04:00
Thomas Harte	e4fdf09149	Fix PUSH SP, far call. Further simplify FlowController.	2023-11-01 23:39:52 -04:00
Thomas Harte	acb55aa4e2	Subsume repetition of arguments into a single context. ... Albeit that it (temporarily?) loses some context used during test validation.	2023-11-01 17:03:23 -04:00
Thomas Harte	bc095bb9ce	Slim down the flow controller.	2023-11-01 14:49:30 -04:00
Thomas Harte	097b328075	Split the preauthorised tracks.	2023-11-01 14:31:42 -04:00
Thomas Harte	ef83ac855a	Fix spelling of Preauthorised, think further on return types.	2023-11-01 14:11:10 -04:00
Thomas Harte	430c60111e	CMP doesn't write.	2023-10-31 22:42:39 -04:00
Thomas Harte	2432396eaa	Fix SETMOC.	2023-10-31 22:04:26 -04:00