Thomas Harte
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54352cb1cb
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Stubs in a couple more registers.
PC now hits $0000. Likely a bug.
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2020-11-09 21:54:25 -05:00 |
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Thomas Harte
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32374444ba
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Fixes text output window.
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2020-11-08 17:04:04 -05:00 |
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Thomas Harte
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287bfeb924
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Hacks in 40-column text.
Hot gossip: my IIgs is reporting a system error. A clue!
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2020-11-08 17:01:23 -05:00 |
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Thomas Harte
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3bb3d8c5c1
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Adds text colour register.
Oddly this isn't currently being set. So probably another latent fault elsewhere.
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2020-11-07 23:14:50 -05:00 |
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Thomas Harte
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b57a2bfec9
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Completes logic for pixel framing. Well, mostly; this doesn't yet allow for auxiliary-using II modes being off to the left.
The perceived effect though is that a frame appears and then freezes. So a clocking issue may still be afoot.
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2020-11-07 22:23:48 -05:00 |
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Thomas Harte
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a51f4122f0
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Attempts to respect border colour.
Though for now my display is just a sea of purple.
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2020-11-07 22:03:05 -05:00 |
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Thomas Harte
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35ba5fc894
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Resolves video timing issues.
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2020-11-07 21:28:08 -05:00 |
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Thomas Harte
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228d901253
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Attempts to stabilise image horizontally.
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2020-11-07 21:10:05 -05:00 |
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Thomas Harte
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d37ba62343
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Makes first, faltering steps towards video display.
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2020-11-07 20:42:34 -05:00 |
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Thomas Harte
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613d4b7c8b
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Migrates character ROM handling; supplies one for the IIgs.
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2020-11-07 17:45:03 -05:00 |
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Thomas Harte
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6c9edbb7a2
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Resolves specious interrupts.dic
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2020-11-05 20:51:00 -05:00 |
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Thomas Harte
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282d0f1ebb
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For debugging, adds a dump of anything in the [presumably] text buffer.
Nothing is there.
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2020-11-05 18:17:21 -05:00 |
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Thomas Harte
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f466cbadec
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Attempts to do just enough with video to get a functioning vertical blank query.
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2020-11-05 17:56:20 -05:00 |
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Thomas Harte
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45f5896b76
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Stubs video switches into the IIgs.
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2020-10-31 20:39:32 -04:00 |
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