38 Commits

Author	SHA1	Message	Date
Thomas Harte	c5dc65fc61	Resolve various whitespace errors.	2025-10-29 11:50:56 -04:00
Thomas Harte	6518f08bc7	Adopt spaceship.	2025-09-04 21:25:12 -04:00
Thomas Harte	78a2b27e65	Attempt LSL, LAR.	2025-08-13 13:43:19 -04:00
Thomas Harte	0e498829f7	Attempt VERR, VERW. ... Without complete success; IBM's third invocation (which I think is a VERR) doesn't give the result that BIOS is looking for.	2025-08-12 17:22:14 -04:00
Thomas Harte	4cd979e5fb	Take a shot at LTR.	2025-08-12 13:49:59 -04:00
Thomas Harte	2f7a6bb242	Establish a specialised validate_call.	2025-08-11 17:10:58 -04:00
Thomas Harte	d35efe3f32	Boil down descriptor attributes.	2025-08-09 23:10:26 -04:00
Thomas Harte	4ee30dc36f	Correct stack validation, fixing POPA. ... 71 failures.	2025-08-08 11:05:01 -04:00
Thomas Harte	4747a70ce7	Correct for accesses right at segment end.	2025-08-04 17:08:01 -04:00
Thomas Harte	c29d5ca4a8	Catch address wraparound out-of-bounds access.	2025-08-04 09:32:35 -04:00
Thomas Harte	48c55211e6	Fix descriptor bounds test.	2025-08-04 09:16:33 -04:00
Thomas Harte	cf0677c30b	Avoid spurious register comparison failures.	2025-07-28 17:44:32 -04:00
Thomas Harte	39568d2464	Run headfirst into a LinearMemory substitution brick wall.	2025-07-25 21:43:54 -04:00
Thomas Harte	7c010bd1ef	Relocate validation logic, such as it is.	2025-07-22 22:42:01 -04:00
Thomas Harte	9e5235fd30	Descriptor tables are always at most 64kb.	2025-05-13 14:07:28 -04:00
Thomas Harte	275e75980c	Take initial swing at LLDT.	2025-05-12 17:22:11 -04:00
Thomas Harte	02f9cf0318	Add basic partial GPF testing.	2025-05-11 22:24:21 -04:00
Thomas Harte	6bc586025a	Attempt per-access part of GPF test.	2025-05-11 22:05:33 -04:00
Thomas Harte	99b94a31ea	Give descriptors knowledge of their indices.	2025-05-11 21:32:00 -04:00
Thomas Harte	b0d4bcd26c	Route all authorisation messages to a common receiver.	2025-05-11 21:08:02 -04:00
Thomas Harte	5f95696815	Remove done TODO.	2025-05-05 22:56:24 -04:00
Thomas Harte	32495f47b3	Bifurcate descriptor types.	2025-05-05 17:26:39 -04:00
Thomas Harte	23bc561524	Add note to self.	2025-05-04 22:21:37 -04:00
Thomas Harte	fa2cc0f62e	Proceed as far as believing I probably need a gate descriptor type.	2025-05-04 22:11:53 -04:00
Thomas Harte	a686a167cc	Factor out 'read descriptor'.	2025-05-04 21:03:17 -04:00
Thomas Harte	7721f74200	Further flesh out descriptors: decode all bits, add printf warnings.	2025-04-10 17:07:45 -04:00
Thomas Harte	148ee266ed	Extend operator== path.	2025-04-06 22:37:59 -04:00
Thomas Harte	7c7675179e	Restrict shift operand size, causing text output at last.	2025-04-03 17:42:15 -04:00
Thomas Harte	88ed49a833	Enable A20 at reset; fully propagate return to real mode.	2025-04-03 16:14:49 -04:00
Thomas Harte	a9a72a767d	Improve fault pathways.	2025-04-01 09:13:41 -04:00
Thomas Harte	69d4d8acb0	Switch to construct and copy.	2025-03-29 17:27:29 -04:00
Thomas Harte	4247da9118	Add notes to self on exceptions.	2025-03-27 18:08:09 -04:00
Thomas Harte	1551fbeb1f	Make some stab at descriptor fetch.	2025-03-27 12:50:50 -04:00
Thomas Harte	fd31d07f41	Begin division of memory into linear and segmented mappings.	2025-03-24 22:58:19 -04:00
Thomas Harte	e7218c0321	Add means for indexed segment access.	2025-03-21 11:16:25 -04:00
Thomas Harte	48d8fdb875	Adopt descriptors in memory handling.	2025-03-21 10:18:26 -04:00
Thomas Harte	0c502fc9cf	Adopt more consistent 'Pointer' naming; eliminate size warning.	2025-03-20 15:33:07 -04:00
Thomas Harte	5d1e3b6c93	Create a home for descriptors.	2025-03-19 14:20:50 -04:00