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Code Issues Projects Releases Wiki Activity
10,921 Commits 8 Branches 121 Tags 496 MiB
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Commit Graph

40 Commits

Author SHA1 Message Date
Thomas Harte
8efb6a9226 Simplify 'get_next_sequence_point' -> 'next_sequence_point'. 2023-09-10 18:00:49 -04:00
Thomas Harte
8578dfbf22 Eliminate various other errant spaces. 2023-05-16 16:40:09 -04:00
Thomas Harte
6b46212a4e Deal with dangling TODO. 2021-07-03 13:07:41 -04:00
Thomas Harte
2a6fff2008 Takes a stab at what might happen if you read from Nick. 2021-07-03 13:06:07 -04:00
Thomas Harte
278671cdb9 Correct Nick interrupt prediction. 2021-07-03 00:05:13 -04:00
Thomas Harte
4fffb3cf19 Allow that final Z80 cycle to start anywhere in the first three of Nick's window of six. 2021-07-02 22:29:35 -04:00
Thomas Harte
7826a26c7b Adds Enterprise composite video option. 
While enabling more pixels on the left for RGB mode.
 2021-07-02 21:42:09 -04:00
Thomas Harte
a5c57e777e VRES appears to work negatively in attribute mode too. 2021-06-28 21:24:13 -04:00
Thomas Harte
daa0737ce4 Ensure addresses tick upwards even during sync/burst; correct 2/4/8bpp character sizing. 2021-06-28 19:00:51 -04:00
Thomas Harte
f2d7b9f6a9 Apply a crop, allow time until Z80 slot to be a future-based query. 2021-06-27 17:13:07 -04:00
Thomas Harte
1ea034310a Edge up very close to video waits. 
I just need to implement back conversions that include marginal phase over in the JustInTimeActor.
 2021-06-27 16:28:01 -04:00
Thomas Harte
c34a548fa0 Ensure character pixel reads can't go out of bounds. 2021-06-24 22:19:50 -04:00
Thomas Harte
520c3c9218 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.
 2021-06-24 20:59:04 -04:00
Thomas Harte
9230cf1726 Corrects bug when left_ or right_margin_ = 0. 2021-06-24 20:28:50 -04:00
Thomas Harte
6e616972a5 Better binds margin tests to window movements; simplifies line parameter addressing. 2021-06-24 18:55:15 -04:00
Thomas Harte
f98888824d Switches to an overt active/inactive state machine. 2021-06-24 18:34:21 -04:00
Thomas Harte
6c8b23e708 Alters 4bpp mapping; adds character mode 4bpp and 8bpp. 2021-06-23 19:35:47 -04:00
Thomas Harte
3acd0be1f7 Copy and paste 2bpp character support. 2021-06-21 23:27:13 -04:00
Thomas Harte
6025516f9f Ensure addresses increment even when there's no target for pixels. 2021-06-20 14:31:02 -04:00
Thomas Harte
07dc26f8fa Adds TODO to resolve screen jumping. 2021-06-19 23:41:29 -04:00
Thomas Harte
23e26e0333 Attempts to complete handling of VRES. 2021-06-19 22:00:19 -04:00
Thomas Harte
fadb04f3f3 Attempts to implement LSBALT and MSBALT. 2021-06-19 21:57:26 -04:00
Thomas Harte
4968ccf46d Corrects attributed mode. 2021-06-19 13:08:14 -04:00
Thomas Harte
1dcac304d3 Implements the ALTIND bits and attempts ATTR mode. 2021-06-19 13:04:18 -04:00
Thomas Harte
8f24aed43e Slightly reduces logging. 2021-06-18 23:17:44 -04:00
Thomas Harte
fbf1adef05 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?
 2021-06-18 17:44:17 -04:00
Thomas Harte
2fd8a8aa66 Begins addition of interrupt feedback from Nick. 
Also fixes clock rate. Though clearly get_next_sequence_point isn't quite right yet.
 2021-06-17 22:30:24 -04:00
Thomas Harte
4414e96710 Adds enough text mode for now. 
Discovered: a memory fault is being reported at startup.
 2021-06-16 21:42:20 -04:00
Thomas Harte
7161783a4f Adds lpixel output. 2021-06-16 21:16:26 -04:00
Thomas Harte
cbac48da86 Attempts full run at pixel mode. 2021-06-16 20:43:22 -04:00
Thomas Harte
d9142d5427 Adjusts declared scale, accurately to communicate pixel clock. 2021-06-15 22:39:44 -04:00
Thomas Harte
e5e988b28f Adds an incorrect assumed-pixel-mode serialiser. 
This actually shows something a bit like the Enterprise boot logo.
 2021-06-15 22:31:50 -04:00
Thomas Harte
e94e051c87 Adds an allocator for pixels. 2021-06-15 22:03:41 -04:00
Thomas Harte
5fc91effb5 Corrects top border. 2021-06-15 21:48:11 -04:00
Thomas Harte
6c9dacbe89 Stabilises display, albeit that top border mode now appears to be off. 2021-06-15 21:31:07 -04:00
Thomas Harte
6a7eb832cc Introduces almost-stable block-level frame generation. 2021-06-15 20:55:58 -04:00
Thomas Harte
60cf8486bb Makes a genuine attempt at real line counting. 
No output yet though.
 2021-06-15 18:57:14 -04:00
Thomas Harte
a1e4389f63 Give Nick some RAM to inspect and just enough sense to know when it should reload its line parameter table. 2021-06-15 17:43:13 -04:00
Thomas Harte
440b11708b Adds an unused CRT. 2021-06-14 23:11:48 -04:00
Thomas Harte
1d1e6d1820 Adds a shell of a Nick. 2021-06-14 22:19:25 -04:00