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11,823 Commits 8 Branches 121 Tags 496 MiB
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1526 Commits

Author SHA1 Message Date
Thomas Harte
3827a084ad Code to GlaBIOS expectations. 2023-11-28 23:18:22 -05:00
Thomas Harte
301442a0b1 Fix meaning of flag, use correctly. 2023-11-28 22:34:34 -05:00
Thomas Harte
b860fba0a3 Make an attempt at providing varied sense interrupt statuses. 2023-11-28 14:12:39 -05:00
Thomas Harte
bffe3ffa25 Add an 8272 results phase. 2023-11-27 23:05:37 -05:00
Thomas Harte
993366ac5a Merge branch 'master' into PCFDC 2023-11-27 22:16:30 -05:00
Thomas Harte
2a0375e9c2 Mildly adjust layout of inner loop. 2023-11-27 15:16:22 -05:00
Thomas Harte
032eeb4757 Eliminate runtime switch. 2023-11-27 14:57:41 -05:00
Thomas Harte
d2203484cc Avoid name duplication. 2023-11-26 15:29:08 -05:00
Thomas Harte
003c494aac Factor out a large number of status-related facts. 2023-11-26 15:04:10 -05:00
Thomas Harte
9bd75464b5 Proceed to receiving a sense interrupt status. 2023-11-25 18:15:37 -05:00
Thomas Harte
0bb048e24b Start formalising/extracting 8272 status. 2023-11-25 18:10:49 -05:00
Thomas Harte
af70c8847d Factor out the stuff of accumulating and dissecting commands. 2023-11-24 18:24:58 -05:00
Thomas Harte
8efb6a9226 Simplify 'get_next_sequence_point' -> 'next_sequence_point'. 2023-09-10 18:00:49 -04:00
Thomas Harte
40d5bd4e58 Switch to purposive name. 2023-05-19 14:22:22 -04:00
Thomas Harte
c75efb7dac Also allow for a potential Grauw conversion in Yamaha land. 2023-05-19 13:43:28 -04:00
Thomas Harte
d117a44069 Allow for potential Grauw offset in TMS and SMS. 2023-05-19 11:46:49 -04:00
Thomas Harte
dc425a03d3 Partially resolve. 2023-05-18 16:55:17 -04:00
Thomas Harte
ce8bd011d7 Add commentary, and TODOs. 2023-05-18 16:50:46 -04:00
Thomas Harte
c76048bff9 Formalise the idea of Grauw as a separate clock. 2023-05-18 16:37:48 -04:00
Thomas Harte
4cb7abe13d Update old comment. 2023-05-18 16:28:05 -04:00
Thomas Harte
5c51bae605 Remove unused variable. 2023-05-16 16:46:36 -04:00
Thomas Harte
8578dfbf22 Eliminate various other errant spaces. 2023-05-16 16:40:09 -04:00
Thomas Harte
f821b60430 Remove stray space. 2023-05-16 16:16:10 -04:00
Thomas Harte
8ca0d9e13a Add a hook for when I think mode latching should occur. 2023-05-16 16:14:37 -04:00
Thomas Harte
3014c957e7 Relocate Yamaha line interrupt. 2023-05-16 13:01:23 -04:00
Thomas Harte
a1a7c0e253 Apply maybe_unused judiciously. 2023-05-15 10:17:04 -04:00
Thomas Harte
50343dec43 Eliminate all whitespace-only lines. 2023-05-12 14:16:39 -04:00
Thomas Harte
28c79b2885 Eliminate redundant [space][tab] pairs. 2023-05-12 14:14:45 -04:00
Thomas Harte
56de9c418f Improve comments. 2023-05-12 13:59:52 -04:00
Thomas Harte
5bcb5fb832 Also sever command-engine state. 2023-05-12 13:57:50 -04:00
Thomas Harte
abeb361441 Gift all generators to YamahaFetcher. 2023-05-12 13:54:07 -04:00
Thomas Harte
f9cc2013a8 Start to cleave off Yamaha fetch tables. 2023-05-12 13:49:53 -04:00
Thomas Harte
e7c40eead9 Have Fetch and Draw be overt about namespaces. 2023-05-12 13:46:35 -04:00
Thomas Harte
c29d80006e Start to organise. 2023-05-12 13:33:02 -04:00
Thomas Harte
596661bfbe Remove errant newline. 2023-05-12 13:25:11 -04:00
Thomas Harte
7e319374b6 Consolidate StandardTiming into LineLayout. 2023-05-11 23:49:12 -04:00
Thomas Harte
2b56b7be0d Simplify namespace syntax. 2023-05-10 16:02:18 -05:00
Thomas Harte
992a47c196
Add fallthrough annotations to Duff-esque loops. 2023-05-10 09:38:42 -05:00
Thomas Harte
8540e7a953
Add missing #include. 2023-05-10 09:37:21 -05:00
Thomas Harte
e94b9f695a Move interrupt away from buggy position. 
Since I don't know where it's supposed to go anyway.
 2023-05-08 09:50:05 -04:00
Thomas Harte
3797968870 Expose line interrupt status only when enabled. 2023-05-08 09:45:54 -04:00
Thomas Harte
561e2b774e Unify numbered and named slots. 2023-04-30 17:24:14 -04:00
Thomas Harte
6552d962ab Fix base for Master System fetching. 2023-04-30 16:43:03 -04:00
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