370 Commits

Author	SHA1	Message	Date
Thomas Harte	20c1c6fdcd	Add sanity check on sprite fetches versus draws.	2023-04-03 22:46:49 -04:00
Thomas Harte	514022204e	Attempt to avoid lingering sprite elements.	2023-04-02 22:45:02 -04:00
Thomas Harte	564ee1a5cb	Fix sprites on first line of display.	2023-03-30 23:45:19 -04:00
Thomas Harte	f3c2c0ffa9	Synchronise fetch and draw sprite buffer usage.	2023-03-30 19:11:00 -04:00
Thomas Harte	931d2373a4	Attempt to make outer loop sole owner of line/sprite buffer selection.	2023-03-30 00:20:03 -04:00
Thomas Harte	de3cd9c286	Simplify namespace declaration.	2023-03-25 23:22:34 -04:00
Thomas Harte	655638656f	Elide the two fills; fix address masking.	2023-03-21 20:05:34 -04:00
Thomas Harte	2bf2abf4b2	Be more overt about masking.	2023-03-19 23:00:41 -04:00
Thomas Harte	235d54bb67	Attempt but retreat from proper treatment of width.	2023-03-18 23:13:06 -04:00
Thomas Harte	e66a92d6cb	Fill in and use some parts of mode description.	2023-03-18 23:07:33 -04:00
Thomas Harte	a6251f436a	Provide commands with [unpopulated] mode parameters.	2023-03-18 13:39:47 -04:00
Thomas Harte	4a5b2fd9ba	Eliminate logged TODOs that I don't intend to action soon.	2023-03-16 22:00:47 -04:00
Thomas Harte	a5a36cb08e	Add missing status storage; capture mode 2 sprite collision locations.	2023-03-15 23:06:32 -04:00
Thomas Harte	aa4582956f	Add TODO.	2023-03-15 22:37:47 -04:00
Thomas Harte	f26dee16bf	Update comment.	2023-03-13 23:21:19 -04:00
Thomas Harte	131784d007	Generalise PointSet to read or write.	2023-03-13 22:51:01 -04:00
Thomas Harte	e703fa9cf8	Fetch colours in TMS character mode.	2023-03-12 23:33:29 -04:00
Thomas Harte	cc04349618	Reestablish relationship between fetch and output.	2023-03-11 22:24:11 -05:00
Thomas Harte	d46f869276	Minor style improvement.	2023-03-10 21:14:52 -05:00
Thomas Harte	da944fde92	Eliminate data-type assumption.	2023-03-10 21:04:35 -05:00
Thomas Harte	c9124f13cd	Add suggested brackets.	2023-03-09 22:25:09 -05:00
Thomas Harte	ca7d34ad04	Fix ambiguous using.	2023-03-09 22:24:53 -05:00
Thomas Harte	2913368a06	Attempt YMMM.	2023-03-08 23:12:02 -05:00
Thomas Harte	82659e7924	Unify existing moves.	2023-03-08 22:36:06 -05:00
Thomas Harte	f3a84021ed	Merge branch 'MSX2' of github.com:TomHarte/CLK into MSX2	2023-03-08 18:28:17 -05:00
Thomas Harte	555d883227	Yamaha fetches don't require an outer switch.	2023-03-08 18:28:13 -05:00
Thomas Harte	020d9604c6	Better judge when to rotate addresses.	2023-03-08 18:27:59 -05:00
Thomas Harte	6845008fd4	Place end-of-frame interrupt appropriately.	2023-03-07 22:12:06 -05:00
Thomas Harte	cc7b209e1a	Adjust visible Y9938 area; clamp scrolled y; use proper mode 2 terminator.	2023-03-07 18:19:08 -05:00
Thomas Harte	e8404bdcc0	TODO is done, probably.	2023-03-06 22:57:53 -05:00
Thomas Harte	f8eb2199c2	Fix relative offset.	2023-03-06 22:49:21 -05:00
Thomas Harte	a13905acf9	Attempt to incorporate scroll offset into line interrupt.	2023-03-06 21:41:43 -05:00
Thomas Harte	5471979f8d	Eliminate stale TODOs.	2023-03-05 21:34:10 -05:00
Thomas Harte	5b8a5755f0	Use correct mode-7 sprite palette.	2023-03-05 21:29:04 -05:00
Thomas Harte	caaba836ba	Correct GR7 rasterisation and 6/7 collection.	2023-03-05 13:43:53 -05:00
Thomas Harte	8fc043247c	Fix column addressing in modes 6 and 7.	2023-03-04 21:39:00 -05:00
Thomas Harte	e58a488add	Rotate command-engine addresses in modes 6 and 7.	2023-03-03 23:06:52 -05:00
Thomas Harte	0ea1da10d6	Attempt to generalise moving from CPU.	2023-03-03 21:40:48 -05:00
Thomas Harte	3381e6b5aa	Switch to Duff's device.	2023-03-02 22:16:18 -05:00
Thomas Harte	4c1973adc8	Fill in missing rasterisers.	2023-03-01 23:19:33 -05:00
Thomas Harte	318cfab67d	Attempt ongoing state for vertical on/off.	2023-02-28 22:28:14 -05:00
Thomas Harte	1ef34b1f18	Clarify meaning of STOP.	2023-02-26 14:28:24 -05:00
Thomas Harte	12bd71cfe1	Allow that the next interrupt line might be in the next frame.	2023-02-26 14:23:38 -05:00
Thomas Harte	c7128f4206	Reduce logging.	2023-02-26 14:01:23 -05:00
Thomas Harte	95fd5a52ba	Use redirected palette in bitmap modes.	2023-02-26 13:59:17 -05:00
Thomas Harte	bfa167fcdf	Make attempt at the TP background-colour bit.	2023-02-26 13:42:59 -05:00
Thomas Harte	b948761f30	Detect mode 2 collisions, albeit without proper reporting.	2023-02-25 10:42:44 -06:00
Thomas Harte	dd65074bbf	Add named getters, resolving composition bug.	2023-02-25 10:32:47 -06:00
Thomas Harte	9debed25e8	Fix meaning of 'origin'.	2023-02-25 08:53:00 -06:00
Thomas Harte	1bdf9a50e6	Take a shot at Mode 2 sprite output.	2023-02-25 08:48:16 -06:00
Thomas Harte	2592dfd78f	Pile on the TODOs.	2023-02-21 22:33:47 -05:00
Thomas Harte	ef5d05db53	Scale down new-mode coordinates; add note to self.	2023-02-21 22:28:39 -05:00
Thomas Harte	6a2cda7074	Pull out and partially generalise sprite output. ... This also provides the intended route to supporting Mode 2.	2023-02-21 22:00:00 -05:00
Thomas Harte	62d381065e	Change 9938 identification number.	2023-02-21 19:35:11 -05:00
Thomas Harte	091c1b0f45	Correct sprite attribute and colour table addresses.	2023-02-21 19:34:26 -05:00
Thomas Harte	a28b5bdeea	Only on the Sega are line interrupts disabled by a read of S#0.	2023-02-20 23:43:23 -05:00
Thomas Harte	2e45422b03	Make a further attempt at sprite colour.	2023-02-20 22:39:34 -05:00
Thomas Harte	3606f5befe	Add expansion RAM to command engine, as far as it goes.	2023-02-20 22:32:36 -05:00
Thomas Harte	44ac948bb2	Add expansion RAM, albeit not yet into the command engine.	2023-02-20 22:27:30 -05:00
Thomas Harte	4bac782121	One final (?) time with colour.	2023-02-19 22:15:59 -05:00
Thomas Harte	318109b7d5	Try again with colour.	2023-02-19 22:14:18 -05:00
Thomas Harte	6990ba9242	Fetch colour from before attribute table.	2023-02-19 22:10:22 -05:00
Thomas Harte	54be424159	Include sprite index in SpriteY event.	2023-02-19 22:04:38 -05:00
Thomas Harte	8d900cf636	Attempt a full collection of Mode 2 sprite properties.	2023-02-19 21:52:10 -05:00
Thomas Harte	6db939f48f	Create a dedicated sprite fetcher.	2023-02-19 21:37:24 -05:00
Thomas Harte	5eae11434a	Sprite mode 2: select sprites, fetch locations and names.	2023-02-18 22:56:05 -05:00
Thomas Harte	7aa8728b39	Reimagine G3 for sprite mode 2.	2023-02-18 21:50:12 -05:00
Thomas Harte	270c5dfe85	Eliminate data_block_ entirely.	2023-02-18 21:41:22 -05:00
Thomas Harte	d6e4f12fdc	Merge DataBlock and Pattern.	2023-02-18 21:34:09 -05:00
Thomas Harte	4e3e4806b9	Eliminate assert; events have overtaken this.	2023-02-17 23:01:42 -05:00
Thomas Harte	ebc596820e	Obtain the background graphics, at least, for G3.	2023-02-17 22:47:15 -05:00
Thomas Harte	b62e899039	Avoid need for shortcuts.	2023-02-17 22:34:52 -05:00
Thomas Harte	a123ef151c	Eliminate further magic ORs.	2023-02-17 22:31:21 -05:00
Thomas Harte	5b31db700b	Deduplicate 40-column text fetching.	2023-02-17 22:23:10 -05:00
Thomas Harte	8af0a2313c	Formally distinguish fetchers and sequencing.	2023-02-17 22:20:38 -05:00
Thomas Harte	88eaa4ff02	[Mostly] avoid magic address constants; avoid duplication of TMS fetching logic.	2023-02-17 21:59:39 -05:00
Thomas Harte	c140f370fe	Attempt to copy and paste my way to working type-1 sprites.	2023-02-16 22:46:19 -05:00
Thomas Harte	023da1970a	Label all character events with IDs.	2023-02-16 22:21:24 -05:00
Thomas Harte	211e145230	Make room for an ID field on Event.	2023-02-16 22:10:16 -05:00
Thomas Harte	bbccc5d6d6	Route other holdover TMS modes through the Yamaha logic.	2023-02-16 22:07:18 -05:00
Thomas Harte	dbfc9a14aa	Introduce SMS fetcher, eliminating all macros.	2023-02-16 22:01:20 -05:00
Thomas Harte	9630a1bc39	Use a fetcher for character modes.	2023-02-16 13:15:18 -05:00
Thomas Harte	3847c9c281	Add missing underscore.	2023-02-15 21:22:51 -05:00
Thomas Harte	3f2a5929a3	Consolidate text output and support blinking; add sprites-enabled flag.	2023-02-15 20:18:56 -05:00
Thomas Harte	9b71f42375	Collect colours.	2023-02-14 21:18:10 -05:00
Thomas Harte	9c43776392	Fix 80-column address generation.	2023-02-14 21:14:35 -05:00
Thomas Harte	35a0a1447e	Further clarify different usages of storage.	2023-02-14 20:23:17 -05:00
Thomas Harte	bf0ed2813c	Make faulty attempt at 80-column text.	2023-02-14 20:13:51 -05:00
Thomas Harte	5c7367b262	Route Yamaha 40-column text mode appropriately.	2023-02-13 22:24:39 -05:00
Thomas Harte	c1457cc5e0	Attempt text mode data collection.	2023-02-13 22:20:47 -05:00
Thomas Harte	169d7a7418	Fix[/revert]: the fetch pointer should be _ahead_.	2023-02-13 21:10:14 -05:00
Thomas Harte	5143960970	Add notes to self on how to collect text.	2023-02-13 21:09:31 -05:00
Thomas Harte	40894964bc	Move VerticalState to live with ScreenMode and FetchMode.	2023-02-13 09:54:29 -05:00
Thomas Harte	927e61484f	Map all events lists appropriately.	2023-02-12 23:02:51 -05:00
Thomas Harte	dce04e7219	Add a generator for character modes.	2023-02-12 22:54:08 -05:00
Thomas Harte	f5814b4c75	Add text-mode events list.	2023-02-12 22:45:11 -05:00
Thomas Harte	815a75d9b6	Extend generator to handle sprite collection.	2023-02-12 22:28:34 -05:00
Thomas Harte	4ad84e5047	Use generator for no-sprite events list.	2023-02-12 22:12:23 -05:00
Thomas Harte	8665dca7f0	Permit generator-based event-table generation.	2023-02-12 21:58:50 -05:00
Thomas Harte	41d57e03a6	Split out LineBuffer and Storage to make 9918Base more manageable.	2023-02-12 12:58:46 -05:00