Thomas Harte
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6b46212a4e
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Deal with dangling TODO.
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2021-07-03 13:07:41 -04:00 |
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Thomas Harte
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2a6fff2008
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Takes a stab at what might happen if you read from Nick.
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2021-07-03 13:06:07 -04:00 |
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Thomas Harte
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278671cdb9
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Correct Nick interrupt prediction.
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2021-07-03 00:05:13 -04:00 |
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Thomas Harte
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4fffb3cf19
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Allow that final Z80 cycle to start anywhere in the first three of Nick's window of six.
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2021-07-02 22:29:35 -04:00 |
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Thomas Harte
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7826a26c7b
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Adds Enterprise composite video option.
While enabling more pixels on the left for RGB mode.
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2021-07-02 21:42:09 -04:00 |
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Thomas Harte
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a5c57e777e
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VRES appears to work negatively in attribute mode too.
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2021-06-28 21:24:13 -04:00 |
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Thomas Harte
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daa0737ce4
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Ensure addresses tick upwards even during sync/burst; correct 2/4/8bpp character sizing.
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2021-06-28 19:00:51 -04:00 |
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Thomas Harte
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f2d7b9f6a9
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Apply a crop, allow time until Z80 slot to be a future-based query.
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2021-06-27 17:13:07 -04:00 |
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Thomas Harte
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1ea034310a
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Edge up very close to video waits.
I just need to implement back conversions that include marginal phase over in the JustInTimeActor.
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2021-06-27 16:28:01 -04:00 |
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Thomas Harte
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c34a548fa0
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Ensure character pixel reads can't go out of bounds.
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2021-06-24 22:19:50 -04:00 |
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Thomas Harte
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520c3c9218
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Corrects colour deserialisation.
Long story short: the documentation I'm reading inexplicably lists the bits in reverse order. Luckily, a lot of the other documentation doesn't.
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2021-06-24 20:59:04 -04:00 |
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Thomas Harte
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9230cf1726
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Corrects bug when left_ or right_margin_ = 0.
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2021-06-24 20:28:50 -04:00 |
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Thomas Harte
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6e616972a5
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Better binds margin tests to window movements; simplifies line parameter addressing.
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2021-06-24 18:55:15 -04:00 |
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Thomas Harte
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f98888824d
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Switches to an overt active/inactive state machine.
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2021-06-24 18:34:21 -04:00 |
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Thomas Harte
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6c8b23e708
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Alters 4bpp mapping; adds character mode 4bpp and 8bpp.
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2021-06-23 19:35:47 -04:00 |
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Thomas Harte
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3acd0be1f7
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Copy and paste 2bpp character support.
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2021-06-21 23:27:13 -04:00 |
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Thomas Harte
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6025516f9f
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Ensure addresses increment even when there's no target for pixels.
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2021-06-20 14:31:02 -04:00 |
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Thomas Harte
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07dc26f8fa
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Adds TODO to resolve screen jumping.
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2021-06-19 23:41:29 -04:00 |
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Thomas Harte
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23e26e0333
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Attempts to complete handling of VRES.
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2021-06-19 22:00:19 -04:00 |
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Thomas Harte
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fadb04f3f3
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Attempts to implement LSBALT and MSBALT.
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2021-06-19 21:57:26 -04:00 |
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Thomas Harte
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4968ccf46d
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Corrects attributed mode.
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2021-06-19 13:08:14 -04:00 |
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Thomas Harte
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1dcac304d3
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Implements the ALTIND bits and attempts ATTR mode.
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2021-06-19 13:04:18 -04:00 |
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Thomas Harte
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8f24aed43e
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Slightly reduces logging.
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2021-06-18 23:17:44 -04:00 |
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Thomas Harte
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fbf1adef05
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Introduces unit test and thereby seemingly fixes get_next_sequence_point.
There's still improper output in the actual machine though, so maybe something else is afoot?
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2021-06-18 17:44:17 -04:00 |
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Thomas Harte
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2fd8a8aa66
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Begins addition of interrupt feedback from Nick.
Also fixes clock rate. Though clearly get_next_sequence_point isn't quite right yet.
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2021-06-17 22:30:24 -04:00 |
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Thomas Harte
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4414e96710
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Adds enough text mode for now.
Discovered: a memory fault is being reported at startup.
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2021-06-16 21:42:20 -04:00 |
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Thomas Harte
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7161783a4f
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Adds lpixel output.
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2021-06-16 21:16:26 -04:00 |
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Thomas Harte
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cbac48da86
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Attempts full run at pixel mode.
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2021-06-16 20:43:22 -04:00 |
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Thomas Harte
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d9142d5427
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Adjusts declared scale, accurately to communicate pixel clock.
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2021-06-15 22:39:44 -04:00 |
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Thomas Harte
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e5e988b28f
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Adds an incorrect assumed-pixel-mode serialiser.
This actually shows something a bit like the Enterprise boot logo.
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2021-06-15 22:31:50 -04:00 |
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Thomas Harte
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e94e051c87
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Adds an allocator for pixels.
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2021-06-15 22:03:41 -04:00 |
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Thomas Harte
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5fc91effb5
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Corrects top border.
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2021-06-15 21:48:11 -04:00 |
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Thomas Harte
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6c9dacbe89
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Stabilises display, albeit that top border mode now appears to be off.
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2021-06-15 21:31:07 -04:00 |
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Thomas Harte
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6a7eb832cc
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Introduces almost-stable block-level frame generation.
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2021-06-15 20:55:58 -04:00 |
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Thomas Harte
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60cf8486bb
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Makes a genuine attempt at real line counting.
No output yet though.
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2021-06-15 18:57:14 -04:00 |
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Thomas Harte
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a1e4389f63
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Give Nick some RAM to inspect and just enough sense to know when it should reload its line parameter table.
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2021-06-15 17:43:13 -04:00 |
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Thomas Harte
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440b11708b
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Adds an unused CRT.
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2021-06-14 23:11:48 -04:00 |
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Thomas Harte
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1d1e6d1820
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Adds a shell of a Nick.
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2021-06-14 22:19:25 -04:00 |
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