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Commit Graph

12 Commits

Author SHA1 Message Date
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