160 Commits

Author	SHA1	Message	Date
Thomas Harte	e66a92d6cb	Fill in and use some parts of mode description.	2023-03-18 23:07:33 -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	131784d007	Generalise PointSet to read or write.	2023-03-13 22:51:01 -04:00
Thomas Harte	2913368a06	Attempt YMMM.	2023-03-08 23:12:02 -05:00
Thomas Harte	020d9604c6	Better judge when to rotate addresses.	2023-03-08 18:27:59 -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	5b8a5755f0	Use correct mode-7 sprite palette.	2023-03-05 21:29:04 -05:00
Thomas Harte	e58a488add	Rotate command-engine addresses in modes 6 and 7.	2023-03-03 23:06:52 -05:00
Thomas Harte	318cfab67d	Attempt ongoing state for vertical on/off.	2023-02-28 22:28:14 -05:00
Thomas Harte	bfa167fcdf	Make attempt at the TP background-colour bit.	2023-02-26 13:42:59 -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	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	c140f370fe	Attempt to copy and paste my way to working type-1 sprites.	2023-02-16 22:46:19 -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	c1457cc5e0	Attempt text mode data collection.	2023-02-13 22:20:47 -05:00
Thomas Harte	41d57e03a6	Split out LineBuffer and Storage to make 9918Base more manageable.	2023-02-12 12:58:46 -05:00
Thomas Harte	7028bdd05d	Limit to 14 bits in old modes.	2023-02-06 22:16:31 -05:00
Thomas Harte	7cb51c021b	Observation: offset is needed only ephemerally.	2023-02-06 21:45:35 -05:00
Thomas Harte	b538407386	Introduce separate state for palette entries.	2023-02-06 19:12:02 -05:00
Thomas Harte	6786e3e78c	Initialise to zero, for completeness.	2023-02-04 21:32:31 -05:00
Thomas Harte	c6372295c5	Complete ReadSourcePixel & ReadSourceByte paths.	2023-02-04 21:23:41 -05:00
Thomas Harte	a2786e6266	Invest Colour with its own logic, including potential emptiness.	2023-02-04 21:14:20 -05:00
Thomas Harte	a892523c09	Advance to the next breaking point.	2023-02-04 11:43:06 -05:00
Thomas Harte	34722bae89	Start pivoting to a more natural expression of TMS patterns.	2023-02-03 23:06:27 -05:00
Thomas Harte	83f6d1cda3	Prepare for source/destination operations.	2023-02-02 21:16:24 -05:00
Thomas Harte	6d315b4660	Switch to specifying number of bits, to reduce potential error.	2023-02-02 12:12:11 -05:00
Thomas Harte	debdad350d	Don't allow a disabled screen to interfere with Yamaha addressing.	2023-02-02 12:03:33 -05:00
Thomas Harte	8f5c7fcabc	Merge branch 'MSX2' of github.com:TomHarte/CLK into MSX2	2023-02-01 22:25:12 -05:00
Thomas Harte	115acf835e	Vertical state is actually tristate.	2023-02-01 22:25:00 -05:00
Thomas Harte	002d27d9c2	Resolve various type conversion errors, and reduce duplication.	2023-02-01 14:17:49 -05:00
Thomas Harte	a315384e30	Provide context for byte-by-byte commands.	2023-01-31 21:29:55 -05:00
Thomas Harte	c5c722ae56	Generalise axis steps; begin HMMV.	2023-01-31 13:35:39 -05:00
Thomas Harte	73e79b14ea	Use Yamaha palette pervasively.	2023-01-29 21:17:00 -05:00
Thomas Harte	3142f5c21d	Be overt about what replaces LineMode.	2023-01-29 21:04:15 -05:00
Thomas Harte	6d7f189ce7	Attempt the full panoply of logical pixel modes, across all graphics modes.	2023-01-29 18:28:49 -05:00
Thomas Harte	0576451102	Be overt about colour direction.	2023-01-29 13:22:56 -05:00
Thomas Harte	2d6afe1013	Reduce repetition, tidy slightly.	2023-01-28 21:43:14 -05:00
Thomas Harte	d3c446d91b	Take a shot at LMMC.	2023-01-28 21:30:45 -05:00
Thomas Harte	975ead5d01	Edge towards not assuming graphics mode. Much more to do here.	2023-01-28 13:54:26 -05:00
Thomas Harte	c6cda7c401	Switch to absolute placement of deferred events; properly serialise commands.	2023-01-28 11:55:12 -05:00
Thomas Harte	95e00dd958	Take slightly wrong-headed steps towards proper command timing.	2023-01-27 22:20:36 -05:00
Thomas Harte	5d5098acb2	Hack in vertical scrolling.	2023-01-26 21:38:51 -05:00
Thomas Harte	b12fd00145	Generate an appropriate instance for line drawing.	2023-01-26 12:09:06 -05:00
Thomas Harte	0c8815d6a0	Retain command-engine context.	2023-01-26 11:59:27 -05:00
Thomas Harte	700470915a	Add pixel serialisation for Yamaha graphics mode 5.	2023-01-24 23:07:29 -05:00
Thomas Harte	63bd0f918d	Be overt about buffer target and vertical position.	2023-01-24 12:46:09 -05:00
Thomas Harte	445b34933a	Edge further towards actual fetching.	2023-01-23 23:19:04 -05:00
Thomas Harte	bbd8b011ba	Remove temporarily-faulty check.	2023-01-23 22:52:03 -05:00