Thomas Harte
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03ef81b07c
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Attempts to reduce initial bounce.
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2021-03-23 17:12:00 -04:00 |
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Thomas Harte
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eccf5ca043
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Makes first effort to wire up the ADB vertical blank input.
However: looking at the disassembly, I'm not sure it really is wired to INTR. So work to do.
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2021-02-14 22:20:58 -05:00 |
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Thomas Harte
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114d48b076
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This register appears to be read/write.
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2020-12-11 21:43:34 -05:00 |
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Thomas Harte
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43251193ee
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The actual maximum line length is now 656.
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2020-12-06 16:42:43 -05:00 |
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Thomas Harte
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3c6f09a898
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Corrects super high-res aspect ratio and placement.
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2020-12-02 20:47:26 -05:00 |
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Thomas Harte
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24fcb0c24b
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Corrects video counter values.
The built-in speed test now passes.
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2020-12-01 18:35:55 -05:00 |
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Thomas Harte
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46c1c9b5ee
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CLRVBLINT calls it 3.75Hz. Which makes the arithmetic nicer.
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2020-11-29 21:25:06 -05:00 |
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Thomas Harte
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4bdbca64b2
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Takes a shot at the Mega II-style video interrupts.
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2020-11-29 21:21:46 -05:00 |
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Thomas Harte
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11fe8ab6db
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Corrects counter scales, adds a read for $c032.
Albeit that I have no idea what that's supposed to read as.
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2020-11-29 20:08:59 -05:00 |
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Thomas Harte
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a9ce43d244
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Takes a shot at the two video counter registers.
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2020-11-29 19:57:35 -05:00 |
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Thomas Harte
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310282b7c9
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Ensures extra_border_length always has a defined value.
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2020-11-27 10:31:04 -05:00 |
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Thomas Harte
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af667c718e
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Gets a bit more rigorous in remaining missing parts.
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2020-11-26 22:36:32 -05:00 |
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Thomas Harte
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fdd102df52
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Resolves border colour resets.
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2020-11-26 13:13:48 -05:00 |
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Thomas Harte
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03a893dc74
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Quick refactor: this clearly isn't a VideoBase, it's the full implementation.
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2020-11-26 12:54:20 -05:00 |
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Thomas Harte
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098a22aa95
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Avoid out-of-bounds access of double_bytes.
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2020-11-24 09:38:07 -05:00 |
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Thomas Harte
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7ede3d2b9e
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Corrects collection of palettes other than palette 0.
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2020-11-23 21:00:26 -05:00 |
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Thomas Harte
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e7160fe3c3
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Rounds out the IIgs video hardware, bugs aside.
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2020-11-23 20:58:32 -05:00 |
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Thomas Harte
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9d61665014
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Attempts to add colour double [low/high] resolution output.
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2020-11-23 19:05:18 -05:00 |
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Thomas Harte
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d2938ad7c8
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Eliminate magic constants.
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2020-11-23 18:36:44 -05:00 |
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Thomas Harte
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46f7ff07f7
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Adds support for fill mode.
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2020-11-22 21:55:21 -05:00 |
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Thomas Harte
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a34f294ba8
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Pulls out commonalities re: NTSC colour, ensures mixed modes on a line works.
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2020-11-22 21:29:40 -05:00 |
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Thomas Harte
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cd7d080b7a
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Corrects low-resolution mode.
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2020-11-22 20:52:42 -05:00 |
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Thomas Harte
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b0936b6ef4
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Resolves high-resolution output.
Yet to optimise, but working.
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2020-11-22 19:10:05 -05:00 |
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Thomas Harte
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8fae74f93e
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Reintroduces delay bit, reverses phase.
There are stray columns of errors, but otherwise this is almost correct.
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2020-11-22 11:06:14 -05:00 |
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Thomas Harte
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fca48e4b66
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Makes hasty attempt to shift 'NTSC' in the most natural direction.
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2020-11-21 23:39:58 -05:00 |
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Thomas Harte
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3b2ea37428
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Slightly cleans up.
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2020-11-21 22:53:26 -05:00 |
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Thomas Harte
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4b024c5787
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Starts to make some attempt at classic II modes.
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2020-11-21 18:07:51 -05:00 |
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Thomas Harte
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d00e5d23ef
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Takes a second shot at the MemoryWrite constructor complaint.
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2020-11-19 22:28:10 -05:00 |
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Thomas Harte
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2c9ce116a2
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Resolves various GCC-reported issues.
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2020-11-19 22:21:20 -05:00 |
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Thomas Harte
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a7051e4e42
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Strip this forceinline until I've satisfied myself that it works in declarations.
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2020-11-18 21:40:25 -05:00 |
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Thomas Harte
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8f4597f742
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Hacks in double text.
Actually, only one error: it should start half a column earlier. All 'double' output should. TODO.
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2020-11-18 19:47:22 -05:00 |
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Thomas Harte
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bb80e53021
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Reduces frequency of video flushes.
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2020-11-16 21:55:41 -05:00 |
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Thomas Harte
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9a55eb56ea
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Attempts to provide saner sequence point behaviour.
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2020-11-16 19:00:11 -05:00 |
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Thomas Harte
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9206ab5dc3
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Adds notes to self; implements get_next_sequence_point for video, allowing per-line interrupts.
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2020-11-16 14:42:50 -05:00 |
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Thomas Harte
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c3f5fbd300
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Picks a better framing compromise for classic and new video modes.
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2020-11-15 19:14:43 -05:00 |
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Thomas Harte
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1db713fec1
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Attempts more meaningful super high-res pixel output.
With a timing hack as noted.
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2020-11-15 18:36:24 -05:00 |
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Thomas Harte
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68ba73bee0
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Ensures I get some sort of feedback for non-text modes.
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2020-11-15 17:16:52 -05:00 |
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Thomas Harte
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5698aa6499
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Corrects colour mapping and improves documentation for self.
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2020-11-11 20:41:30 -05:00 |
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Thomas Harte
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6ba517a4c1
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Applies a will-do-for-now crop to video output.
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2020-11-10 18:50:23 -05:00 |
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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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