1533 Commits

Author	SHA1	Message	Date
Thomas Harte	6c0feeedb4	Update Master System horizontal counter.	2023-04-26 22:49:46 -04:00
Thomas Harte	b5d9586362	Clean up some dangling timing changes.	2023-04-25 23:16:21 -04:00
Thomas Harte	e49e98d309	Support horizontal offsets.	2023-04-24 22:43:11 -04:00
Thomas Harte	1b4df01a28	Fix missing right blank.	2023-04-24 22:23:09 -04:00
Thomas Harte	dbddcd109c	Add mention of text mode.	2023-04-23 22:38:42 -04:00
Thomas Harte	efa7d659bc	Subsume right erase.	2023-04-23 22:21:22 -04:00
Thomas Harte	5daec050dd	Adopt proper pixel-content placement.	2023-04-23 22:18:36 -04:00
Thomas Harte	f5c8eba843	Reduce duplication.	2023-04-23 22:02:41 -04:00
Thomas Harte	e5b0e666cc	Realign fetching.	2023-04-23 21:16:04 -04:00
Thomas Harte	96896f838c	Adjust layout inner loop.	2023-04-23 12:17:55 -04:00
Thomas Harte	f22aa6eb36	Simplify all namespace usages.:wq	2023-04-23 12:08:07 -04:00
Thomas Harte	6d092e0633	Restore missing semicolon.	2023-04-23 12:06:07 -04:00
Thomas Harte	6651a9c323	Use established test.	2023-04-23 12:01:33 -04:00
Thomas Harte	12bcc2dee7	Make reasonable guesses at colour burst placement.	2023-04-22 23:11:01 -04:00
Thomas Harte	d587d80616	Transcribe Grauw's line timings.	2023-04-22 22:58:23 -04:00
Thomas Harte	e66c015b43	Eliminate regress for now.	2023-04-13 23:30:52 -04:00
Thomas Harte	9d99cc6115	Fix external slot placement.	2023-04-12 22:35:01 -04:00
Thomas Harte	383770515e	Avoid null dereference.	2023-04-10 23:13:36 -04:00
Thomas Harte	024b7960cb	Overtly link line and sprite buffers.	2023-04-10 23:03:39 -04:00
Thomas Harte	e0a5d9f31c	Reorient sequencers around HSYNC.	2023-04-08 15:28:49 -04:00
Thomas Harte	224c79c492	Move state.	2023-04-06 00:05:19 -04:00
Thomas Harte	278e7ba9b0	Take ownership of test choice.	2023-04-05 23:33:42 -04:00
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
Thomas Harte	914a9e0c84	Yamaha: don't touch address at all unless a RAM access.	2023-02-11 22:43:29 -05:00
Thomas Harte	8768ee1504	Merge branch 'MSX2' of github.com:TomHarte/CLK into MSX2	2023-02-11 22:40:03 -05:00
Thomas Harte	8e6c36bb15	Yamaha: don't part-modify address.	2023-02-11 10:35:42 -05:00
Thomas Harte	c6401f0444	Add TODO.	2023-02-07 22:28:18 -05:00
Thomas Harte	3c3efe3e22	Don't be so fussy.	2023-02-06 22:16:42 -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	a3df106f92	Reset write phase only upon traditional register accesses.	2023-02-06 20:32:24 -05:00
Thomas Harte	b538407386	Introduce separate state for palette entries.	2023-02-06 19:12:02 -05:00
Thomas Harte	c04d292c8e	Make this more obviously correct, albeit arbitrarily. ... Comparing just a single bit would do.	2023-02-05 22:53:08 -05:00
Thomas Harte	f9c88fd598	Fix memory mask; mildly improve commentary.	2023-02-05 22:51:16 -05:00
Thomas Harte	7fcb1b29dd	Keep source within rectangle. ... This gives something vaguely recognisable, sort of, for the test program I'm using.	2023-02-04 21:37:08 -05:00
Thomas Harte	6786e3e78c	Initialise to zero, for completeness.	2023-02-04 21:32:31 -05:00
Thomas Harte	67755c3811	Attempt [H/L]MMM.	2023-02-04 21:29:44 -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	ab595f5e8d	Merge branch 'MSX2' of github.com:TomHarte/CLK into MSX2	2023-02-04 11:02:10 -05:00
Thomas Harte	38950fe241	Sketch out remaining necessary @c AccessTypes.	2023-02-04 11:02:02 -05:00
Thomas Harte	46d009f27b	Add logical fill.	2023-02-04 10:31:41 -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	d41081c59f	Fix sections.	2023-02-02 21:55:00 -05:00
Thomas Harte	ec227ce021	Generalise rectangular operations.	2023-02-02 21:49:05 -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	0d4dc214fb	Merge branch 'MSX2' of github.com:TomHarte/CLK into MSX2	2023-02-02 11:38:45 -05:00
Thomas Harte	5d4c49c913	Attempt to enable high-speed fill.	2023-02-01 22:57:33 -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	c0fec8db15	Clean up macro.	2023-02-01 15:05:21 -05:00
Thomas Harte	f0e70f18fd	Fix seeding of output_pointer_.	2023-02-01 14:59:42 -05:00
Thomas Harte	9d2841bf6a	Reenable full ram pointer capture. Thanks @PatrickvL !	2023-02-01 14:55:33 -05:00
Thomas Harte	4cc34fd557	Resolve GCC complaint.	2023-02-01 14:28:19 -05:00
Thomas Harte	3636383b1f	Silence abstract/non-virtual-destructor warning.	2023-02-01 14:20:11 -05:00
Thomas Harte	1264600bab	Shorten long lines.	2023-02-01 14:18:36 -05:00
Thomas Harte	002d27d9c2	Resolve various type conversion errors, and reduce duplication.	2023-02-01 14:17:49 -05:00
Thomas Harte	90e8ce3253	Fix lines. ... TODO: determine whether I really need `location` as distinct from `.destination`.	2023-01-31 21:33:57 -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	872b9e5021	Predict Yamaha horizontal retrace interrupts.	2023-01-30 21:33:47 -05:00
Thomas Harte	492a170b20	Implement much of Yamaha line interrupts.	2023-01-30 21:24:53 -05:00
Thomas Harte	30a2b1611f	Merge branch 'MSX2' of github.com:TomHarte/CLK into MSX2	2023-01-30 21:06:23 -05:00
Thomas Harte	29af5542f8	Make an effort at doing _something_ for G4.	2023-01-30 21:06:04 -05:00
Thomas Harte	bc4c54800e	Type out just a little of status register 1.	2023-01-30 20:20:33 -05:00
Thomas Harte	8f20cb93e9	Note missed status accesses.	2023-01-29 21:20:50 -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	a91a5b8d07	Refer to actual field.	2023-01-29 18:02:09 -05:00
Thomas Harte	4cdcd3ac7d	Retain logical operation, take colour combination outside the loop.	2023-01-29 13:29:19 -05:00
Thomas Harte	0576451102	Be overt about colour direction.	2023-01-29 13:22:56 -05:00
Thomas Harte	3f12a28f4f	Locate first pixel correctly.	2023-01-28 22:50:04 -05:00
Thomas Harte	41ba883fb6	Honour direction, start transfer immediately.	2023-01-28 22:47:27 -05:00
Thomas Harte	1e646eb57b	Improve transfer flag for LMMC.	2023-01-28 21:45:05 -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	7e69e33ec2	Use paletted Yamaha border colour.	2023-01-27 22:42:02 -05:00
Thomas Harte	95e00dd958	Take slightly wrong-headed steps towards proper command timing.	2023-01-27 22:20:36 -05:00
Thomas Harte	8a673a697b	Further adapt internal terminology.	2023-01-27 12:30:09 -05:00
Thomas Harte	75ad4cdb67	Fix line semantics.	2023-01-27 11:57:40 -05:00
Thomas Harte	d42b6df570	Retain extra pattern name address bits.	2023-01-27 06:44:11 -05:00
Thomas Harte	81b00c6d97	Add notes.	2023-01-26 22:25:10 -05:00
Thomas Harte	1e5f751bc0	Require STOP in order to stop.	2023-01-26 22:08:36 -05:00
Thomas Harte	9a65fffe16	That's PSET, not POINT.	2023-01-26 22:02:40 -05:00
Thomas Harte	515fa22bfe	Implement point.	2023-01-26 21:52:41 -05:00
Thomas Harte	66ac089cc2	Deallocate.	2023-01-26 21:49:32 -05:00
Thomas Harte	5d5098acb2	Hack in vertical scrolling.	2023-01-26 21:38:51 -05:00
Thomas Harte	1bf8406e7e	Correct deserialisation order.	2023-01-26 21:34:56 -05:00
Thomas Harte	75acbd2d6c	A quick hack shows some part of the MSX logo.	2023-01-26 21:31:49 -05:00
Thomas Harte	baa6f9b3cd	Implements the Command side of the line command.	2023-01-26 21:17:11 -05:00
Thomas Harte	1c6a0ad3f7	Clean up repetition.	2023-01-26 19:51:56 -05:00
Thomas Harte	fbfa26ad5e	Minor steps towards implementing Line.	2023-01-26 12:55:08 -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