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10,118 Commits 9 Branches 118 Tags 496 MiB
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435 Commits

Author SHA1 Message Date
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