11 Commits

Author	SHA1	Message	Date
Thomas Harte	54352cb1cb	Stubs in a couple more registers. ... PC now hits $0000. Likely a bug.	2020-11-09 21:54:25 -05:00
Thomas Harte	32374444ba	Fixes text output window.	2020-11-08 17:04:04 -05:00
Thomas Harte	287bfeb924	Hacks in 40-column text. ... Hot gossip: my IIgs is reporting a system error. A clue!	2020-11-08 17:01:23 -05:00
Thomas Harte	3bb3d8c5c1	Adds text colour register. ... Oddly this isn't currently being set. So probably another latent fault elsewhere.	2020-11-07 23:14:50 -05:00
Thomas Harte	a51f4122f0	Attempts to respect border colour. ... Though for now my display is just a sea of purple.	2020-11-07 22:03:05 -05:00
Thomas Harte	d37ba62343	Makes first, faltering steps towards video display.	2020-11-07 20:42:34 -05:00
Thomas Harte	699fb0aa4b	Switches to just-in-time video, for easy access to a clock divider.	2020-11-07 19:40:26 -05:00
Thomas Harte	613d4b7c8b	Migrates character ROM handling; supplies one for the IIgs.	2020-11-07 17:45:03 -05:00
Thomas Harte	282d0f1ebb	For debugging, adds a dump of anything in the [presumably] text buffer. ... Nothing is there.	2020-11-05 18:17:21 -05:00
Thomas Harte	f466cbadec	Attempts to do just enough with video to get a functioning vertical blank query.	2020-11-05 17:56:20 -05:00
Thomas Harte	45f5896b76	Stubs video switches into the IIgs.	2020-10-31 20:39:32 -04:00