Thomas Harte
5cb4077576
Switches from modulo to and.
2020-11-30 17:47:57 -05:00
Thomas Harte
e9c7e0b9dd
Provisionally reverses meaning of language card RAM bank select.
2020-11-29 21:57:17 -05:00
Thomas Harte
35aa7612bb
Ensures that auxiliary/language-card soft switches don't trigger my assert.
2020-11-29 21:32:24 -05:00
Thomas Harte
acaa841822
Adds guaranteed trip to ROM for vector pulls.
2020-11-29 21:29:15 -05:00
Thomas Harte
46c1c9b5ee
CLRVBLINT calls it 3.75Hz. Which makes the arithmetic nicer.
2020-11-29 21:25:06 -05:00
Thomas Harte
4bdbca64b2
Takes a shot at the Mega II-style video interrupts.
2020-11-29 21:21:46 -05:00
Thomas Harte
11fe8ab6db
Corrects counter scales, adds a read for $c032.
...
Albeit that I have no idea what that's supposed to read as.
2020-11-29 20:08:59 -05:00
Thomas Harte
a9ce43d244
Takes a shot at the two video counter registers.
2020-11-29 19:57:35 -05:00
Thomas Harte
310282b7c9
Ensures extra_border_length always has a defined value.
2020-11-27 10:31:04 -05:00
Thomas Harte
af667c718e
Gets a bit more rigorous in remaining missing parts.
2020-11-26 22:36:32 -05:00
Thomas Harte
950f5b1691
Closes the loop on interrupts.
2020-11-26 19:56:42 -05:00
Thomas Harte
cbc0d848ad
Implements most of get_data.
2020-11-26 17:25:27 -05:00
Thomas Harte
f4d13d1f6f
Takes a run at the bus side of honouring Ensoniq sequence points.
2020-11-26 17:14:46 -05:00
Thomas Harte
6808ad6f5d
Adds a getter for the interrupt line.
2020-11-26 16:44:35 -05:00
Thomas Harte
7a8920ee38
Takes a stab at next_sequence_point.
2020-11-26 16:41:11 -05:00
Thomas Harte
4870506f6e
Implements skip_audio.
2020-11-26 16:24:48 -05:00
Thomas Harte
6f47f9d67c
Corrects placement of address bits.
2020-11-26 16:15:40 -05:00
Thomas Harte
8093f67173
Ensures video interrupts can't be missed by a suitably-timed access.
2020-11-26 16:11:03 -05:00
Thomas Harte
72884f37c3
It's still interrupt-deficient, but fills in additional Ensoniq audio generation.
2020-11-26 16:03:28 -05:00
Thomas Harte
8edb3fcd5f
Attempts to obey accumulator size in determining sample end.
2020-11-26 15:07:29 -05:00
Thomas Harte
fdd102df52
Resolves border colour resets.
2020-11-26 13:13:48 -05:00
Thomas Harte
03a893dc74
Quick refactor: this clearly isn't a VideoBase, it's the full implementation.
2020-11-26 12:54:20 -05:00
Thomas Harte
56de2512ae
Adds a further safety assert.
2020-11-25 23:34:30 -05:00
Thomas Harte
cdc2311045
Enables fuzzing, adds a definite no-op write.
2020-11-25 23:33:55 -05:00
Thomas Harte
eec27c3406
Reaches for marginally more coherent ADB data.
2020-11-25 17:34:00 -05:00
Thomas Harte
098a22aa95
Avoid out-of-bounds access of double_bytes.
2020-11-24 09:38:07 -05:00
Thomas Harte
7ede3d2b9e
Corrects collection of palettes other than palette 0.
2020-11-23 21:00:26 -05:00
Thomas Harte
e7160fe3c3
Rounds out the IIgs video hardware, bugs aside.
2020-11-23 20:58:32 -05:00
Thomas Harte
9d61665014
Attempts to add colour double [low/high] resolution output.
2020-11-23 19:05:18 -05:00
Thomas Harte
d2938ad7c8
Eliminate magic constants.
2020-11-23 18:36:44 -05:00
Thomas Harte
46f7ff07f7
Adds support for fill mode.
2020-11-22 21:55:21 -05:00
Thomas Harte
a34f294ba8
Pulls out commonalities re: NTSC colour, ensures mixed modes on a line works.
2020-11-22 21:29:40 -05:00
Thomas Harte
cd7d080b7a
Corrects low-resolution mode.
2020-11-22 20:52:42 -05:00
Thomas Harte
b0936b6ef4
Resolves high-resolution output.
...
Yet to optimise, but working.
2020-11-22 19:10:05 -05:00
Thomas Harte
8fae74f93e
Reintroduces delay bit, reverses phase.
...
There are stray columns of errors, but otherwise this is almost correct.
2020-11-22 11:06:14 -05:00
Thomas Harte
fca48e4b66
Makes hasty attempt to shift 'NTSC' in the most natural direction.
2020-11-21 23:39:58 -05:00
Thomas Harte
3b2ea37428
Slightly cleans up.
2020-11-21 22:53:26 -05:00
Thomas Harte
3cba3a5ac0
Corrects card mask test outside of bank $00.
2020-11-21 22:22:27 -05:00
Thomas Harte
4b024c5787
Starts to make some attempt at classic II modes.
2020-11-21 18:07:51 -05:00
Thomas Harte
4a42de4f18
Attempts to add 5.25" drive support to the IIgs.
...
I want to try some classic software.
2020-11-20 21:37:17 -05:00
Thomas Harte
d00e5d23ef
Takes a second shot at the MemoryWrite constructor complaint.
2020-11-19 22:28:10 -05:00
Thomas Harte
2c9ce116a2
Resolves various GCC-reported issues.
2020-11-19 22:21:20 -05:00
Thomas Harte
3512352c32
Attempt to use the most-significant relevant bits for sample position.
2020-11-19 22:13:09 -05:00
Thomas Harte
4d9372c52f
Also takes a stab at swap mode.
2020-11-19 21:56:49 -05:00
Thomas Harte
1d288b08b6
Attempts the two most basic forms of DOC output.
...
Sans interrupts. Or register reads of any variety.
2020-11-19 21:19:27 -05:00
Thomas Harte
f3c7c11772
Register writes now reach the audio thread.
2020-11-18 21:52:03 -05:00
Thomas Harte
4b9fe805e9
Sets up a queue to push memory writes onto the audio thread.
2020-11-18 21:40:56 -05:00
Thomas Harte
a7051e4e42
Strip this forceinline until I've satisfied myself that it works in declarations.
2020-11-18 21:40:25 -05:00
Thomas Harte
34794223b4
For now, at least, c800–cfff is always built-in ROM.
...
Otherwise I probably need to extend my c3 logic to cover the other built-in cards (?)
2020-11-18 19:49:45 -05:00
Thomas Harte
96cf617ee6
Advances slightly. I think I need a custom queue for RAM writes.
2020-11-18 19:48:53 -05:00
Thomas Harte
69dddf34b9
Adds bonus sanity check.
2020-11-18 19:47:56 -05:00
Thomas Harte
8f4597f742
Hacks in double text.
...
Actually, only one error: it should start half a column earlier. All 'double' output should. TODO.
2020-11-18 19:47:22 -05:00
Thomas Harte
98347cb1c3
Starts in the direction of audio support.
2020-11-18 18:39:11 -05:00
Thomas Harte
bb80e53021
Reduces frequency of video flushes.
2020-11-16 21:55:41 -05:00
Thomas Harte
952891d1b6
Improves commentary.
2020-11-16 21:46:35 -05:00
Thomas Harte
6dfad6a44b
Slightly reduces logging.
...
Hopefully soon I can tear the whole lot out.
2020-11-16 21:46:19 -05:00
Thomas Harte
e4c5bfdd5c
Takes a repeat shot at proper shadowing.
...
I think the Apple IIgs Technical Reference explains how these bits interact, and I just had inhibit_all_pages off all on my own.
2020-11-16 19:54:12 -05:00
Thomas Harte
9a55eb56ea
Attempts to provide saner sequence point behaviour.
2020-11-16 19:00:11 -05:00
Thomas Harte
9206ab5dc3
Adds notes to self; implements get_next_sequence_point for video, allowing per-line interrupts.
2020-11-16 14:42:50 -05:00
Thomas Harte
7e39550fc0
Attempts to make JustInTimeActor sequence-point aware.
...
With the objective of chopping out a lot of future boilerplate.
2020-11-15 21:58:18 -05:00
Thomas Harte
c3f5fbd300
Picks a better framing compromise for classic and new video modes.
2020-11-15 19:14:43 -05:00
Thomas Harte
1db713fec1
Attempts more meaningful super high-res pixel output.
...
With a timing hack as noted.
2020-11-15 18:36:24 -05:00
Thomas Harte
68ba73bee0
Ensures I get some sort of feedback for non-text modes.
2020-11-15 17:16:52 -05:00
Thomas Harte
cdacf280e1
After much extra logging, corrects destination bank for MVN and MVP.
2020-11-15 16:08:29 -05:00
Thomas Harte
1538a02e18
Better explains concern.
2020-11-14 19:27:20 -05:00
Thomas Harte
f9cec9a102
Attempts also to implement 1Mhz access costs.
...
Subject to TODO, and same observation as before: this is as to my current understanding only.
2020-11-14 19:23:01 -05:00
Thomas Harte
adda3d8f42
Attempts a 'full' model of 2.8Mhz access timing.
...
i.e. full to my current understanding.
2020-11-14 19:10:41 -05:00
Thomas Harte
ec3ff0da12
Steps towards proper calculation of time.
2020-11-14 18:39:16 -05:00
Thomas Harte
73c38b3b0d
Collapses nested conditionals.
2020-11-14 18:23:31 -05:00
Thomas Harte
edc8050b36
Adds activity indicators.
2020-11-14 18:00:06 -05:00
Thomas Harte
715a1b9cd6
Ensures safe shutdown.
2020-11-12 21:44:51 -05:00
Thomas Harte
86310849eb
Corrects IWM clocking.
2020-11-12 18:09:31 -05:00
Thomas Harte
a2a928e262
Takes a guess at the format of IIgs .po files; wires them through to the actual machine.
...
... which still declines to boot.
2020-11-12 18:01:26 -05:00
Thomas Harte
3813e00ca3
Adds the Apple II toggle speaker.
2020-11-11 21:04:38 -05:00
Thomas Harte
5698aa6499
Corrects colour mapping and improves documentation for self.
2020-11-11 20:41:30 -05:00
Thomas Harte
a15af1df5e
Attempts to use the other bit of disk drive control, the 5.25"/3.5" select.
...
For the record, the ROM thinks it finds some Smartport devices and then attempts to talk to them. Since none is present, it blocks forever.
2020-11-11 17:55:50 -05:00
Thomas Harte
da9e378ab1
Quietens, for now.
2020-11-11 17:53:21 -05:00
Thomas Harte
8024bbd721
Provides minor extra detail.
2020-11-11 17:08:56 -05:00
Thomas Harte
ece9382a4e
Also attaches IWM select line.
2020-11-10 18:59:23 -05:00
Thomas Harte
6ba517a4c1
Applies a will-do-for-now crop to video output.
2020-11-10 18:50:23 -05:00
Thomas Harte
20fd5adb24
Makes a first effort at attaching an IWM.
2020-11-10 18:38:23 -05:00
Thomas Harte
abb350ff5b
Stubs in audio toggle and disk control.
...
It appears that ROM 01 now fails because reading the disk interface register doesn't do as expected. ROM 03 starts hitting what should be the IWM and dies in a surplus of logging.
2020-11-09 22:21:52 -05:00
Thomas Harte
dc8d4d49f5
Gives the two sets of switches responsibility for supplying 'state'.
...
(And fixes language-card state value.)
2020-11-09 22:11:20 -05:00
Thomas Harte
54352cb1cb
Stubs in a couple more registers.
...
PC now hits $0000. Likely a bug.
2020-11-09 21:54:25 -05:00
Thomas Harte
7e106c6add
Attempts to stub in read from microcontroller, and extends command 0x06.
...
A complete guess on the latter, as if you didn't know.
2020-11-09 21:20:53 -05:00
Thomas Harte
0ae49b356a
Seems to do enough padding out to get me to my second failing ADB command.
...
That's better than failing at the first.
2020-11-09 19:05:48 -05:00
Thomas Harte
32374444ba
Fixes text output window.
2020-11-08 17:04:04 -05:00
Thomas Harte
287bfeb924
Hacks in 40-column text.
...
Hot gossip: my IIgs is reporting a system error. A clue!
2020-11-08 17:01:23 -05:00
Thomas Harte
3bb3d8c5c1
Adds text colour register.
...
Oddly this isn't currently being set. So probably another latent fault elsewhere.
2020-11-07 23:14:50 -05:00
Thomas Harte
b57a2bfec9
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.
2020-11-07 22:23:48 -05:00
Thomas Harte
a51f4122f0
Attempts to respect border colour.
...
Though for now my display is just a sea of purple.
2020-11-07 22:03:05 -05:00
Thomas Harte
35ba5fc894
Resolves video timing issues.
2020-11-07 21:28:08 -05:00
Thomas Harte
228d901253
Attempts to stabilise image horizontally.
2020-11-07 21:10:05 -05:00
Thomas Harte
d37ba62343
Makes first, faltering steps towards video display.
2020-11-07 20:42:34 -05:00
Thomas Harte
699fb0aa4b
Switches to just-in-time video, for easy access to a clock divider.
2020-11-07 19:40:26 -05:00
Thomas Harte
613d4b7c8b
Migrates character ROM handling; supplies one for the IIgs.
2020-11-07 17:45:03 -05:00
Thomas Harte
6b29e1f598
Corrects accesses to switch values.
2020-11-05 21:25:06 -05:00
Thomas Harte
6c9edbb7a2
Resolves specious interrupts.dic
2020-11-05 20:51:00 -05:00
Thomas Harte
282d0f1ebb
For debugging, adds a dump of anything in the [presumably] text buffer.
...
Nothing is there.
2020-11-05 18:17:21 -05:00
Thomas Harte
f466cbadec
Attempts to do just enough with video to get a functioning vertical blank query.
2020-11-05 17:56:20 -05:00
