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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2c2bb3765f
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Withdraws the EPDOS option.
At least for now; it's something to worry about later.
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2021-06-23 19:32:34 -04:00 |
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Thomas Harte
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0d165740ea
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Honours memory size request.
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2021-06-22 21:48:55 -04:00 |
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Thomas Harte
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8319aca351
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Correct syntax errors.
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2021-06-22 20:50:03 -04:00 |
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Thomas Harte
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a66734883a
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Starts sketching out Dave.
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2021-06-22 19:33:41 -04:00 |
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Thomas Harte
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e062780968
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Extends back to 128kb and stops halting on unrecognised ports.
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2021-06-22 06:15:42 -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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c1678d7be7
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Corrects exposition and transmission of drive selection.
What a klutz I've been.
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2021-06-21 22:56:25 -04:00 |
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Thomas Harte
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117f9a9794
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Adds notes on intended meaning of status register.
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2021-06-21 07:31:58 -04:00 |
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Thomas Harte
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b49cc407c6
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Adds some guesses as to the EXDos expansion.
... with plenty left to do.
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2021-06-20 22:30:27 -04:00 |
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Thomas Harte
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954386f1cc
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Creates a shell for the disk-drive add-on card.
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2021-06-20 20:50:23 -04:00 |
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Thomas Harte
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d7ff6bd04d
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Adds necessary declarations to install a DOS ROM.
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2021-06-20 20:30:54 -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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d8b9cdf7a2
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Correct multiplier.
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2021-06-20 14:25:37 -04:00 |
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Thomas Harte
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09dbff39f2
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Also map keypad to F keys.
This is a pragmatic and arguably Apple-centric decision. But also it's fairly arbitrary, as the Enterprise doesn't have a number pad.
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2021-06-20 14:25:28 -04:00 |
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Thomas Harte
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2fe15a6168
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Switch to idealised Nick clock rate.
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2021-06-20 14:21:56 -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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0e1e8c7faa
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Attempts to support the panoply of EXOS and BASIC versions.
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2021-06-19 22:59:09 -04:00 |
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Thomas Harte
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42a98e1676
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Fix composition with empty nodes.
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2021-06-19 22:13:17 -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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1651efe4fc
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Ensures all keys are initially unpressed.
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2021-06-19 13:03:31 -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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a381374e31
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Drops back down to 64kb.
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2021-06-18 23:14:44 -04:00 |
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Thomas Harte
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9411c37d23
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Fleshes out the keyboard map.
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2021-06-18 23:14:35 -04:00 |
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Thomas Harte
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6af6f21868
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Attempts to implement interrupt latches and clears.
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2021-06-18 22:59:41 -04:00 |
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Thomas Harte
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9a0022cfcb
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Removes temporary work.
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2021-06-18 18:44:07 -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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311ddfb05a
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Add note to self for tomorrow.
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2021-06-17 22:34:52 -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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0c3e9dca28
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Adds some basic keyboard inputs.
I think the next thing required is interrupts though.
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2021-06-17 20:47:56 -04:00 |
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Thomas Harte
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c331d15429
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Makes space to allow for 64kb EXOS ROMs.
I think some of the later ROMs have a more thorough memory test, which might provide better detail on whatever's going on here.
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2021-06-16 22:25:00 -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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90b8163d54
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Add exposition.
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2021-06-15 17:44:39 -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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