Thomas Harte
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a13905acf9
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Attempt to incorporate scroll offset into line interrupt.
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2023-03-06 21:41:43 -05:00 |
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Thomas Harte
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5471979f8d
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Eliminate stale TODOs.
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2023-03-05 21:34:10 -05:00 |
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Thomas Harte
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5b8a5755f0
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Use correct mode-7 sprite palette.
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2023-03-05 21:29:04 -05:00 |
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Thomas Harte
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caaba836ba
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Correct GR7 rasterisation and 6/7 collection.
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2023-03-05 13:43:53 -05:00 |
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Thomas Harte
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8fc043247c
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Fix column addressing in modes 6 and 7.
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2023-03-04 21:39:00 -05:00 |
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Thomas Harte
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e58a488add
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Rotate command-engine addresses in modes 6 and 7.
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2023-03-03 23:06:52 -05:00 |
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Thomas Harte
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0ea1da10d6
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Attempt to generalise moving from CPU.
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2023-03-03 21:40:48 -05:00 |
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Thomas Harte
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3381e6b5aa
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Switch to Duff's device.
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2023-03-02 22:16:18 -05:00 |
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Thomas Harte
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4c1973adc8
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Fill in missing rasterisers.
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2023-03-01 23:19:33 -05:00 |
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Thomas Harte
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318cfab67d
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Attempt ongoing state for vertical on/off.
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2023-02-28 22:28:14 -05:00 |
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Thomas Harte
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1ef34b1f18
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Clarify meaning of STOP.
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2023-02-26 14:28:24 -05:00 |
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Thomas Harte
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12bd71cfe1
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Allow that the next interrupt line might be in the next frame.
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2023-02-26 14:23:38 -05:00 |
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Thomas Harte
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c7128f4206
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Reduce logging.
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2023-02-26 14:01:23 -05:00 |
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Thomas Harte
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95fd5a52ba
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Use redirected palette in bitmap modes.
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2023-02-26 13:59:17 -05:00 |
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Thomas Harte
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bfa167fcdf
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Make attempt at the TP background-colour bit.
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2023-02-26 13:42:59 -05:00 |
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Thomas Harte
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b948761f30
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Detect mode 2 collisions, albeit without proper reporting.
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2023-02-25 10:42:44 -06:00 |
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Thomas Harte
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dd65074bbf
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Add named getters, resolving composition bug.
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2023-02-25 10:32:47 -06:00 |
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Thomas Harte
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9debed25e8
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Fix meaning of 'origin'.
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2023-02-25 08:53:00 -06:00 |
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Thomas Harte
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1bdf9a50e6
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Take a shot at Mode 2 sprite output.
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2023-02-25 08:48:16 -06:00 |
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Thomas Harte
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2592dfd78f
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Pile on the TODOs.
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2023-02-21 22:33:47 -05:00 |
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Thomas Harte
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ef5d05db53
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Scale down new-mode coordinates; add note to self.
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2023-02-21 22:28:39 -05:00 |
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Thomas Harte
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6a2cda7074
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Pull out and partially generalise sprite output.
This also provides the intended route to supporting Mode 2.
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2023-02-21 22:00:00 -05:00 |
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Thomas Harte
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62d381065e
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Change 9938 identification number.
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2023-02-21 19:35:11 -05:00 |
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Thomas Harte
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091c1b0f45
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Correct sprite attribute and colour table addresses.
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2023-02-21 19:34:26 -05:00 |
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Thomas Harte
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a28b5bdeea
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Only on the Sega are line interrupts disabled by a read of S#0.
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2023-02-20 23:43:23 -05:00 |
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Thomas Harte
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2e45422b03
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Make a further attempt at sprite colour.
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2023-02-20 22:39:34 -05:00 |
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Thomas Harte
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3606f5befe
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Add expansion RAM to command engine, as far as it goes.
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2023-02-20 22:32:36 -05:00 |
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Thomas Harte
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44ac948bb2
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Add expansion RAM, albeit not yet into the command engine.
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2023-02-20 22:27:30 -05:00 |
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Thomas Harte
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4bac782121
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One final (?) time with colour.
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2023-02-19 22:15:59 -05:00 |
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Thomas Harte
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318109b7d5
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Try again with colour.
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2023-02-19 22:14:18 -05:00 |
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Thomas Harte
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6990ba9242
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Fetch colour from before attribute table.
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2023-02-19 22:10:22 -05:00 |
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Thomas Harte
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54be424159
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Include sprite index in SpriteY event.
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2023-02-19 22:04:38 -05:00 |
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Thomas Harte
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8d900cf636
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Attempt a full collection of Mode 2 sprite properties.
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2023-02-19 21:52:10 -05:00 |
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Thomas Harte
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6db939f48f
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Create a dedicated sprite fetcher.
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2023-02-19 21:37:24 -05:00 |
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Thomas Harte
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5eae11434a
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Sprite mode 2: select sprites, fetch locations and names.
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2023-02-18 22:56:05 -05:00 |
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Thomas Harte
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7aa8728b39
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Reimagine G3 for sprite mode 2.
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2023-02-18 21:50:12 -05:00 |
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Thomas Harte
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270c5dfe85
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Eliminate data_block_ entirely.
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2023-02-18 21:41:22 -05:00 |
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Thomas Harte
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d6e4f12fdc
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Merge DataBlock and Pattern.
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2023-02-18 21:34:09 -05:00 |
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Thomas Harte
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4e3e4806b9
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Eliminate assert; events have overtaken this.
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2023-02-17 23:01:42 -05:00 |
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Thomas Harte
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ebc596820e
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Obtain the background graphics, at least, for G3.
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2023-02-17 22:47:15 -05:00 |
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Thomas Harte
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b62e899039
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Avoid need for shortcuts.
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2023-02-17 22:34:52 -05:00 |
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Thomas Harte
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a123ef151c
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Eliminate further magic ORs.
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2023-02-17 22:31:21 -05:00 |
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Thomas Harte
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5b31db700b
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Deduplicate 40-column text fetching.
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2023-02-17 22:23:10 -05:00 |
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Thomas Harte
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8af0a2313c
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Formally distinguish fetchers and sequencing.
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2023-02-17 22:20:38 -05:00 |
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Thomas Harte
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88eaa4ff02
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[Mostly] avoid magic address constants; avoid duplication of TMS fetching logic.
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2023-02-17 21:59:39 -05:00 |
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Thomas Harte
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c140f370fe
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Attempt to copy and paste my way to working type-1 sprites.
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2023-02-16 22:46:19 -05:00 |
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Thomas Harte
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023da1970a
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Label all character events with IDs.
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2023-02-16 22:21:24 -05:00 |
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Thomas Harte
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211e145230
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Make room for an ID field on Event.
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2023-02-16 22:10:16 -05:00 |
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Thomas Harte
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bbccc5d6d6
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Route other holdover TMS modes through the Yamaha logic.
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2023-02-16 22:07:18 -05:00 |
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Thomas Harte
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dbfc9a14aa
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Introduce SMS fetcher, eliminating all macros.
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2023-02-16 22:01:20 -05:00 |
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