22 Commits

Author	SHA1	Message	Date
Thomas Harte	6025516f9f	Ensure addresses increment even when there's no target for pixels.	2021-06-20 14:31:02 -04:00
Thomas Harte	07dc26f8fa	Adds TODO to resolve screen jumping.	2021-06-19 23:41:29 -04:00
Thomas Harte	23e26e0333	Attempts to complete handling of VRES.	2021-06-19 22:00:19 -04:00
Thomas Harte	fadb04f3f3	Attempts to implement LSBALT and MSBALT.	2021-06-19 21:57:26 -04:00
Thomas Harte	4968ccf46d	Corrects attributed mode.	2021-06-19 13:08:14 -04:00
Thomas Harte	1dcac304d3	Implements the ALTIND bits and attempts ATTR mode.	2021-06-19 13:04:18 -04:00
Thomas Harte	8f24aed43e	Slightly reduces logging.	2021-06-18 23:17:44 -04:00
Thomas Harte	fbf1adef05	Introduces unit test and thereby seemingly fixes get_next_sequence_point. ... There's still improper output in the actual machine though, so maybe something else is afoot?	2021-06-18 17:44:17 -04:00
Thomas Harte	2fd8a8aa66	Begins addition of interrupt feedback from Nick. ... Also fixes clock rate. Though clearly get_next_sequence_point isn't quite right yet.	2021-06-17 22:30:24 -04:00
Thomas Harte	4414e96710	Adds enough text mode for now. ... Discovered: a memory fault is being reported at startup.	2021-06-16 21:42:20 -04:00
Thomas Harte	7161783a4f	Adds lpixel output.	2021-06-16 21:16:26 -04:00
Thomas Harte	cbac48da86	Attempts full run at pixel mode.	2021-06-16 20:43:22 -04:00
Thomas Harte	d9142d5427	Adjusts declared scale, accurately to communicate pixel clock.	2021-06-15 22:39:44 -04:00
Thomas Harte	e5e988b28f	Adds an incorrect assumed-pixel-mode serialiser. ... This actually shows something a bit like the Enterprise boot logo.	2021-06-15 22:31:50 -04:00
Thomas Harte	e94e051c87	Adds an allocator for pixels.	2021-06-15 22:03:41 -04:00
Thomas Harte	5fc91effb5	Corrects top border.	2021-06-15 21:48:11 -04:00
Thomas Harte	6c9dacbe89	Stabilises display, albeit that top border mode now appears to be off.	2021-06-15 21:31:07 -04:00
Thomas Harte	6a7eb832cc	Introduces almost-stable block-level frame generation.	2021-06-15 20:55:58 -04:00
Thomas Harte	60cf8486bb	Makes a genuine attempt at real line counting. ... No output yet though.	2021-06-15 18:57:14 -04:00
Thomas Harte	a1e4389f63	Give Nick some RAM to inspect and just enough sense to know when it should reload its line parameter table.	2021-06-15 17:43:13 -04:00
Thomas Harte	440b11708b	Adds an unused CRT.	2021-06-14 23:11:48 -04:00
Thomas Harte	1d1e6d1820	Adds a shell of a Nick.	2021-06-14 22:19:25 -04:00