29 Commits

Author	SHA1	Message	Date
Thomas Harte	e62be03673	Removed endianness assumption.	2016-12-10 19:10:33 -05:00
Thomas Harte	a5683dfb21	Removed now untrue comment.	2016-12-10 15:19:48 -05:00
Thomas Harte	0e71802b92	Reduced Oric video to single nibble constants. Removed attempt at asynchronous flush as no longer required.	2016-12-10 14:17:46 -05:00
Thomas Harte	580f347727	Fixed Oric SCART mode by having it change what it's giving to the CRT based on which shader it knows will be active.	2016-12-10 13:55:56 -05:00
Thomas Harte	a549fd1ecc	Introduced the ability simply to piggy-back off the CRT's natural phase for the colour burst, thereby eliminating a couple of redundant independent attempts in the Oric and Electron.	2016-12-10 13:42:34 -05:00
Thomas Harte	6cdd41e5a9	Added direct use of the colour ROM, uploading 16 bits per pixel to contain the entire ROM composite wave.	2016-12-09 22:17:10 -05:00
Thomas Harte	3b5962b171	This is an initial attempt at using the actual Oric colour ROM values for composite video generation.	2016-12-09 20:01:27 -05:00
Thomas Harte	5ebc1c63ff	Switched video to postfix underscores, for consistency.	2016-11-22 22:28:45 +08:00
Thomas Harte	b04ba41951	Moved code out of header.	2016-10-30 20:16:58 -04:00
Thomas Harte	3b52ab0d37	Cut some dead state.	2016-10-30 20:16:52 -04:00
Thomas Harte	58f888c6ad	Limited CRT calls.	2016-10-30 16:21:20 -04:00
Thomas Harte	1ff9b474bf	Made an attempt to make execution flow through this loop more straightforward for a branch predictor.	2016-10-30 15:30:39 -04:00
Thomas Harte	2eda0b3c86	Attempted to simplify the logic behind the most common 6522 usage.	2016-10-27 21:06:31 -04:00
Thomas Harte	30d4a7c662	Fixed: blinking means ink vanishing and appearing. Nothing else.	2016-10-24 21:58:15 -04:00
Thomas Harte	09687a2e2f	Removed errant newline.	2016-10-20 21:30:12 -04:00
Thomas Harte	9c956f83b8	Made it slightly more clear that the correct test is conformed to.	2016-10-20 19:23:36 -04:00
Thomas Harte	21cfb39ed9	Added 60Hz output support.	2016-10-20 07:34:23 -04:00
Thomas Harte	734b575d30	Ensured no attempt to write to pixel storage if none was available.	2016-10-19 21:17:27 -04:00
Thomas Harte	1a57e89ff0	Altered phase so that it now merely accounts for accumulated error across a frame. Can probably do better.	2016-10-17 08:04:15 -04:00
Thomas Harte	61ad0f8bdc	Fixed inverse characters, added an extra per-frame phase change, based on empirical observation, ensured header guard won't become ambiguous.	2016-10-16 22:14:01 -04:00
Thomas Harte	a67afb7efa	Switched to a tight crop on the pixel part of the display.	2016-10-15 21:43:46 -04:00
Thomas Harte	da9c9ad51a	Added in the missing keys; added variable phase to the video.	2016-10-14 22:39:27 -04:00
Thomas Harte	c9962f6502	Made an almost complete implementation of video. Just one row of the diagnostics cartridge seems to be off, showing thw wrong character set.	2016-10-13 19:34:29 -04:00
Thomas Harte	69920a4979	Made some basic first attempt at parsing video attributes; ensured lowest byte of ROM is readable.	2016-10-13 07:59:11 -04:00
Thomas Harte	ae48ad1bb4	Meaningful text! Albeit with the initial 'O' of 'Oric' missing. I guess control codes and NMIs next?	2016-10-12 22:03:54 -04:00
Thomas Harte	120b2d9e33	Switched to using a diagnostic ROM for now, as it'll definitely boot without initially requiring either a 6522 or AY. Have some forms appearing which imply I'm not doing badly, at least up to not knowing where I'm supposed to get character pixels from.	2016-10-12 21:52:47 -04:00
Thomas Harte	1f857c619b	Fixed timing issues. Static box of frame achieved!	2016-10-12 21:42:36 -04:00
Thomas Harte	304f0999cd	Made a faulty but hopefully creditable attempt to demarcate an Oric frame.	2016-10-12 21:29:21 -04:00
Thomas Harte	8c8a71107e	Added just enough wiring to add something that will generate the video, one day.	2016-10-12 19:20:23 -04:00