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Author	SHA1	Message	Date
Thomas Harte	71069bef0f	Correct get_scaled_scan_status.	2023-12-07 12:18:03 -05:00
Thomas Harte	8608f0f89d	Adjust CGA clocking down by 1/7th.	2023-12-07 12:05:15 -05:00
Thomas Harte	d94791a82d	Merge pull request #1254 from TomHarte/BordersAplenty ... Unify repeated setup/execution of output_level.	2023-12-07 11:45:42 -05:00
Thomas Harte	017fd84f36	Also use output level for CRAM dots.	2023-12-07 11:05:10 -05:00
Thomas Harte	fc63fcb751	Unify usages of output_level for border.	2023-12-07 11:04:18 -05:00
Thomas Harte	eb4a8bfef9	Merge pull request #1253 from TomHarte/RTC ... Add some small portion of the AT real-time clock.	2023-12-07 10:52:45 -05:00
Thomas Harte	ad78a03300	Default to CGA40 if starting a new composite PC.	2023-12-07 10:14:06 -05:00
Thomas Harte	0f22ee5de4	Add TODO.	2023-12-07 10:08:43 -05:00
Thomas Harte	83cfacc0a5	Update TODOs.	2023-12-07 10:03:52 -05:00
Thomas Harte	ef0c3549d2	Attempt but fail to indicate PM.	2023-12-06 23:28:16 -05:00
Thomas Harte	e3119a4904	Hack in read-only versions of the main registers.	2023-12-06 23:25:34 -05:00
Thomas Harte	5fde3b8d5d	Wire up a stub RTC plus appropriate option ROM.	2023-12-06 22:56:09 -05:00
Thomas Harte	d696c15be5	Merge pull request #1252 from TomHarte/CGAAddresses ... Revise guess as to CGA address wrapping.	2023-12-06 22:32:54 -05:00
Thomas Harte	b385e6edad	Revise guess as to address wrapping.	2023-12-06 22:03:24 -05:00
Thomas Harte	327dc51ece	Merge pull request #1250 from TomHarte/CGATarget ... Add CGA emulation.	2023-12-06 16:23:10 -05:00
Thomas Harte	a44ffa769b	Merge pull request #1251 from TomHarte/PCScreenshots ... Add PC screenshots, mention.	2023-12-06 16:21:51 -05:00
Thomas Harte	87438a3019	Add PC screenshots, mention.	2023-12-06 16:20:31 -05:00
Thomas Harte	1f976b8ccb	Complete loop for macOS display selection.	2023-12-06 14:49:34 -05:00
Thomas Harte	8645a4b7b1	Walk further towards user display configuration.	2023-12-06 14:44:59 -05:00
Thomas Harte	ff000a5792	Support remainder of colour control.	2023-12-06 14:38:43 -05:00
Thomas Harte	1c7f8841f4	Avoid potential lengthy startup; work towards display option.	2023-12-06 13:55:41 -05:00
Thomas Harte	fd298ffbe9	Remove dead TODO.	2023-12-06 13:15:36 -05:00
Thomas Harte	987a5dbfbf	Honour monochrome flag.	2023-12-06 13:15:17 -05:00
Thomas Harte	0bb74f405f	Ensure lines are in-phase with the NTSC colour subcarrier.	2023-12-06 13:12:58 -05:00
Thomas Harte	1aa168054e	Add a phoney colour burst.	2023-12-06 13:10:28 -05:00
Thomas Harte	6d7c6de32f	Fix flush_pixels for 640px mode.	2023-12-06 11:50:16 -05:00
Thomas Harte	d3021e8c90	Attempt _something_ for 640px mode.	2023-12-06 11:42:35 -05:00
Thomas Harte	6adaf89934	Make first attempt at palette support.	2023-12-06 11:19:04 -05:00
Thomas Harte	bf49f745bf	Attempt to distinguish clocks.	2023-12-06 10:41:20 -05:00
Thomas Harte	c5aa3fc75c	Start mangling towards pixel output.	2023-12-06 10:30:30 -05:00
Thomas Harte	d88c7ae148	Switch to CGA as default.	2023-12-06 09:59:21 -05:00
Thomas Harte	f455f07ba2	Support half-clocked mode.	2023-12-06 09:59:14 -05:00
Thomas Harte	561e50a24d	Implement most of CGA text mode.	2023-12-06 09:42:22 -05:00
Thomas Harte	2216fc37a1	Add CGA font.	2023-12-06 09:34:25 -05:00
Thomas Harte	23bdf0c2a2	Add CGA font references.	2023-12-06 09:34:04 -05:00
Thomas Harte	24eaf95e9d	Limit to eight pixels per fetch, to produce stable video.	2023-12-06 09:13:47 -05:00
Thomas Harte	e43f960934	Produce incorrect output from proper clock; capture mode.	2023-12-05 23:01:08 -05:00
Thomas Harte	fdd599e71a	Unify CRTC routing.	2023-12-05 23:00:43 -05:00
Thomas Harte	84ee683ad3	Remove redundant, false comment.	2023-12-05 23:00:21 -05:00
Thomas Harte	b2b05b590f	Clone the MDA class to CGA.	2023-12-05 22:37:33 -05:00
Thomas Harte	c5ec9ae171	Adjust MDA clock; it's slightly slower than my guess.	2023-12-05 22:31:37 -05:00
Thomas Harte	5576588c2d	Fix drive enables, go back to FF for non-existent ports.	2023-12-05 22:02:41 -05:00
Thomas Harte	084efdeb2d	Resolve further type conversion warnings.	2023-12-05 16:54:11 -05:00
Thomas Harte	fd8afb6668	Devolve memory location and font ROM decision.	2023-12-05 16:46:39 -05:00
Thomas Harte	dd04909d58	Resolve some further warnings.	2023-12-05 16:43:55 -05:00
Thomas Harte	736a3841ce	Wire up adaptor selection.	2023-12-05 16:42:55 -05:00
Thomas Harte	bdf9c4765b	Loosen the assumption of MDA.	2023-12-05 16:38:09 -05:00
Thomas Harte	6659a1dec5	Exit on EOP.	2023-12-05 15:37:25 -05:00
Thomas Harte	f97e6095df	Adjust option name.	2023-12-05 15:26:32 -05:00
Thomas Harte	23c60ae9bc	Supply video adaptor type.	2023-12-05 15:19:58 -05:00