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
c5944efe50
Adds various method definitions.
2021-07-03 12:56:56 -04:00
Thomas Harte
f384370b18
Switch what's left of Enterprise logging to actual LOGs.
2021-07-03 12:50:46 -04:00
Thomas Harte
278671cdb9
Correct Nick interrupt prediction.
2021-07-03 00:05:13 -04:00
Thomas Harte
964d2d4fa4
Be consistent in expression of logic.
2021-07-03 00:00:00 -04:00
Thomas Harte
283092cfbc
With a unit test in aid, corrects some lingering TimedInterruptSource
issues.
2021-07-02 23:41:19 -04:00
Thomas Harte
614953a222
Allows the low-pass filter to react to high-pass effects.
2021-07-02 22:36:35 -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
d715e5fd1d
Expose composite/RGB option in Qt.
2021-07-02 21:51:48 -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
763b9ba0ec
Ensure the splash screen is skipped for self-booting disks.
2021-07-02 21:11:54 -04:00
Thomas Harte
51d98ef9ab
Add missing stddef header where size_t is used.
2021-07-01 23:15:32 -04:00
Thomas Harte
742d44a532
Switch to an activity-based typing trigger; add a target loading command.
2021-07-01 22:53:23 -04:00
Thomas Harte
52b96db2b9
Correct syntax, mapping and inter-key timing.
2021-07-01 21:18:15 -04:00
Thomas Harte
0b9de78c38
Add typer support for the Enterprise.
2021-07-01 21:05:03 -04:00
Thomas Harte
1c424833a9
Correct EXDOS ROM name.
2021-06-29 21:04:53 -04:00
Thomas Harte
3d8fc9952d
Remove dead TODO, correct for overflow position.
2021-06-29 15:44:02 -04:00
Thomas Harte
8ce8fbd977
Provide correct input when one of the tone generators is the interrupt source.
2021-06-29 15:41:08 -04:00
Thomas Harte
7f08218b28
The Nick interrupt input also seems to be a live poll, not a retrieval of the mask.
...
This corrects the two pieces of software I knew not to be working.
2021-06-28 22:10:11 -04:00
Thomas Harte
2c139ad931
Adds some notes to self.
...
I think I'm starting to find enough information to handle tapes.
2021-06-28 22:03:06 -04:00
Thomas Harte
1119779c8b
Ensure EXDOS card is completely disabled if no FDC is present.
2021-06-28 21:47:53 -04:00
Thomas Harte
5351ac560f
Ensure the motor goes off for unselected drives.
2021-06-28 21:40:12 -04:00
Thomas Harte
49f0ab0f15
Add note to self.
...
Although I still think there may be some issue lurking.
2021-06-28 21:31:55 -04:00
Thomas Harte
a5c57e777e
VRES appears to work negatively in attribute mode too.
2021-06-28 21:24:13 -04:00
Thomas Harte
3c59042388
Fixes initial state for 1kHz.
2021-06-28 21:08:41 -04:00
Thomas Harte
919e211bc4
Reduces number of interrupt-related sequence points.
2021-06-28 19:30:12 -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
36805cb120
Correct tone channel interrupts, remove dead warning.
2021-06-27 23:21:00 -04:00
Thomas Harte
7de69e9874
Makes an attempt to round out the timed interrupts.
2021-06-27 23:09:11 -04:00
Thomas Harte
b93575bbcc
Spots that b0 and b2 of 0xb4 are 'dividers', not enables.
2021-06-27 22:33:20 -04:00
Thomas Harte
116e0f0105
Interupts 1kHz and 50Hz interrupts, while edging towards tone generator interrupts.
2021-06-27 22:08:38 -04:00
Thomas Harte
e4a650aaff
Implements the 1Hz interrupt.
2021-06-27 21:47:21 -04:00
Thomas Harte
b5312b9ba0
get_interrupt_line can be const.
2021-06-27 21:37:11 -04:00
Thomas Harte
6afee7bb9b
Captures appropriate fields.
...
No action yet.
2021-06-27 21:36:55 -04:00
Thomas Harte
2f53b105bb
The Enterprise is now an Activity::Source; also sketches out the owner of Dave's timed interrupt logic.
2021-06-27 21:02:04 -04:00
Thomas Harte
be19fa9dde
This mapping needs to know where it will occur.
2021-06-27 17:30:09 -04:00
Thomas Harte
81e9ba5608
This is correct from the Enterprise's side of things, I think.
...
I just need to complete the missing part of JustInTimeActor. After I do some empirical testing of this.
2021-06-27 17:24:21 -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
10bf6744aa
Correct typo.
2021-06-27 16:26:55 -04:00
Thomas Harte
895d98e266
Implements out-of-video-area pauses.
2021-06-27 16:11:22 -04:00
Thomas Harte
903e343895
Attempts to complete Dave's audio duties.
2021-06-27 14:06:49 -04:00
Thomas Harte
f8b7c59616
Corrects tone frequency.
2021-06-26 23:51:43 -04:00
Thomas Harte
fcd267a3f9
Starts implementing noise.
2021-06-26 23:48:53 -04:00
Thomas Harte
f8bb66d2a0
Attempts an essentially-complete implementation of tone channels.
2021-06-26 23:39:59 -04:00
Thomas Harte
f2336d2efc
I think reloads occur after overflow, not before.
2021-06-26 23:16:00 -04:00
Thomas Harte
c2d093fa3c
Respect user volume input.
...
Basic tones are now present. Neato!
2021-06-24 22:27:02 -04:00
Thomas Harte
1a97cc8a91
Start making some effort towards audio generation.
2021-06-24 22:21:01 -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
2c2bb3765f
Withdraws the EPDOS option.
...
At least for now; it's something to worry about later.
2021-06-23 19:32:34 -04:00
Thomas Harte
0d165740ea
Honours memory size request.
2021-06-22 21:48:55 -04:00
Thomas Harte
8319aca351
Correct syntax errors.
2021-06-22 20:50:03 -04:00
Thomas Harte
a66734883a
Starts sketching out Dave.
2021-06-22 19:33:41 -04:00
Thomas Harte
e062780968
Extends back to 128kb and stops halting on unrecognised ports.
2021-06-22 06:15:42 -04:00
Thomas Harte
3acd0be1f7
Copy and paste 2bpp character support.
2021-06-21 23:27:13 -04:00
Thomas Harte
c1678d7be7
Corrects exposition and transmission of drive selection.
...
What a klutz I've been.
2021-06-21 22:56:25 -04:00
Thomas Harte
117f9a9794
Adds notes on intended meaning of status register.
2021-06-21 07:31:58 -04:00
Thomas Harte
b49cc407c6
Adds some guesses as to the EXDos expansion.
...
... with plenty left to do.
2021-06-20 22:30:27 -04:00
Thomas Harte
954386f1cc
Creates a shell for the disk-drive add-on card.
2021-06-20 20:50:23 -04:00
Thomas Harte
d7ff6bd04d
Adds necessary declarations to install a DOS ROM.
2021-06-20 20:30:54 -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
d8b9cdf7a2
Correct multiplier.
2021-06-20 14:25:37 -04:00
Thomas Harte
09dbff39f2
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.
2021-06-20 14:25:28 -04:00
Thomas Harte
2fe15a6168
Switch to idealised Nick clock rate.
2021-06-20 14:21:56 -04:00
Thomas Harte
07dc26f8fa
Adds TODO to resolve screen jumping.
2021-06-19 23:41:29 -04:00
Thomas Harte
0e1e8c7faa
Attempts to support the panoply of EXOS and BASIC versions.
2021-06-19 22:59:09 -04:00
Thomas Harte
42a98e1676
Fix composition with empty nodes.
2021-06-19 22:13:17 -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
1651efe4fc
Ensures all keys are initially unpressed.
2021-06-19 13:03:31 -04:00
Thomas Harte
8f24aed43e
Slightly reduces logging.
2021-06-18 23:17:44 -04:00
Thomas Harte
a381374e31
Drops back down to 64kb.
2021-06-18 23:14:44 -04:00
Thomas Harte
9411c37d23
Fleshes out the keyboard map.
2021-06-18 23:14:35 -04:00
Thomas Harte
6af6f21868
Attempts to implement interrupt latches and clears.
2021-06-18 22:59:41 -04:00
Thomas Harte
9a0022cfcb
Removes temporary work.
2021-06-18 18:44:07 -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
311ddfb05a
Add note to self for tomorrow.
2021-06-17 22:34:52 -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
0c3e9dca28
Adds some basic keyboard inputs.
...
I think the next thing required is interrupts though.
2021-06-17 20:47:56 -04:00
Thomas Harte
c331d15429
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.
2021-06-16 22:25:00 -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
90b8163d54
Add exposition.
2021-06-15 17:44:39 -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
f90dce5c54
Take a guess at Nick timing.
2021-06-14 22:56:26 -04:00
Thomas Harte
606c7709cf
Shims in enough to get the Z80 to run perpetually.
...
Notably I don't actually currently know how the interrupt registers work, but getting some sort of display running might be the first order of business.
2021-06-14 22:28:31 -04:00
Thomas Harte
1d1e6d1820
Adds a shell of a Nick.
2021-06-14 22:19:25 -04:00
Thomas Harte
3eb4dd74a2
Exposes memory control.
...
Machine now runs as far as trying to interact with Nick.
2021-06-14 21:45:12 -04:00
Thomas Harte
853914480c
Revised guess; there's a jump to C02E almost immediately.
2021-06-14 21:40:19 -04:00
Thomas Harte
2a2ac1227b
Makes first attempt at giving the Z80 something to do.
2021-06-14 21:29:56 -04:00
Thomas Harte
b5340c8f74
Correct syntax.
2021-06-14 21:17:35 -04:00
Thomas Harte
196c4dcdd9
Adds an appropriate ROM request.
2021-06-14 21:17:09 -04:00
Thomas Harte
c5a86f0ef7
Add Enterprise parts of the static analyser.
2021-06-14 21:11:06 -04:00
Thomas Harte
5f7b3ae313
Adds bare minimum to get a non-functional machine.
2021-06-14 21:02:40 -04:00
Thomas Harte
61c127ed2e
Adds Enterprise as a File -> New... machine.
...
And, similarly, exposes it for the route used by SDL.
2021-06-14 20:55:39 -04:00
Thomas Harte
1ea4130035
Avoid OpenGL restretching bug.
2021-06-13 19:46:47 -04:00
Thomas Harte
d18a537509
Fiddles with the preprocessor to make kiosk mode match other OSes even on macOS.
2021-06-13 19:28:05 -04:00
Thomas Harte
778b9ef683
Ensures set_square_pixels is exposed, works around OpenGL aspect ratio bug.
2021-06-07 20:41:02 -04:00
Thomas Harte
96e7eb1bed
Adds a use-square-pixels option for the Apple II.
2021-06-07 20:16:01 -04:00
Thomas Harte
6e4832f999
Ensures Oric honours absence of the colour ROM.
2021-06-06 22:43:53 -04:00
Thomas Harte
54e3332673
Ensure optionals appear at the end of any ROM request list.
2021-06-06 22:36:26 -04:00
Thomas Harte
f27e331462
Updates autotests to new RomFetcher world.
2021-06-06 20:34:55 -04:00
Thomas Harte
dd64aef910
Improves request construction and improves descriptions.
2021-06-06 20:25:26 -04:00
Thomas Harte
95971f39f1
Reintroduces full messaging to macOS.
2021-06-06 20:02:13 -04:00
Thomas Harte
83beb3c0e6
Introduces slightly-less manual ROM::Request::visit
.
2021-06-06 18:28:02 -04:00
Thomas Harte
76335e5cf2
Factors out and slightly generalises textual descriptions of ROM::Descriptions.
2021-06-06 18:15:00 -04:00
Thomas Harte
5acd97c860
Puts enough in place for a GUI-led installation process.
...
... and provides a lot of the Objective-C wiring necessary to expose that to Swift.
2021-06-06 14:24:38 -04:00
Thomas Harte
b0f551c307
Ensures only _missing_ ROMs are reported.
2021-06-05 21:09:35 -04:00
Thomas Harte
b6b3d845a3
Correct Apple IIe and Enhanced IIe startup.
2021-06-04 22:48:08 -04:00
Thomas Harte
505d84f336
Corrects Amstrad 664 and 6128 ROM collection.
2021-06-04 22:43:26 -04:00
Thomas Harte
deff91e460
Correct Electron name mapping.
2021-06-04 22:25:11 -04:00
Thomas Harte
fbee74e1fe
Avoids storing or printing a CRC if none is known.
2021-06-04 22:03:08 -04:00
Thomas Harte
ccd82591aa
Reinstates SDL error message; adds expansion of ~
.
2021-06-04 21:53:56 -04:00
Thomas Harte
64931e476d
Completes transcription of ROM details with the Oric and MSX.
2021-06-04 19:50:49 -04:00
Thomas Harte
604a715a49
Transcribes the Spectrum, Electron, Master System and Vic-20 ROMs.
2021-06-04 19:45:47 -04:00
Thomas Harte
24757ef20c
Transcribes the Macintosh, Atari ST, ColecoVision and ZX80/81 ROMs.
2021-06-04 19:24:57 -04:00
Thomas Harte
e36cc9e777
Transcribes the Apple II ROM descriptions.
2021-06-04 19:19:55 -04:00
Thomas Harte
2e999889bd
Attempts to implement tree construction.
2021-06-04 19:03:07 -04:00
Thomas Harte
f4db4c3a73
Implements ROM::Request::validate.
...
It now also validates ROM sizes, so can no longer take a const Map.
2021-06-04 18:54:50 -04:00
Thomas Harte
d923fe72c0
Resolves various ROM selection warnings.
2021-06-03 22:46:47 -04:00
Thomas Harte
f05cdd5e34
With large swathes of implementation missing, compiles.
2021-06-03 22:39:18 -04:00
Thomas Harte
f9954619d4
Add missing header file.
2021-06-03 22:28:30 -04:00
Thomas Harte
0aa8c3c40d
For SDL at least, advances to failed linking.
...
... and with error reporting currently AWOL.
2021-06-03 22:22:56 -04:00
Thomas Harte
a30eeaab6a
Starts to introduce a new grammar for ROM requests.
...
They can be optional, and chained together in AND or OR combinations. A central catalogue knows the definitions of all ROMs.
2021-06-03 21:55:59 -04:00
Thomas Harte
22c31e4f55
Tightens automatic tape control timing.
2021-05-08 17:34:59 -04:00
Thomas Harte
052e284c33
Add overt fallthrough.
2021-05-03 22:17:43 -04:00
Thomas Harte
2c18bb4508
Make it overt that this can't return without a value.
2021-05-03 22:17:12 -04:00
Thomas Harte
0cf1c9040a
Add missing fallthrough declaration.
2021-05-03 22:17:06 -04:00
Thomas Harte
d1dcb41b6f
Adds Altai-style joystick support.
2021-04-29 18:29:29 -04:00
Thomas Harte
b6554c8255
Adds joystick support.
2021-04-28 20:19:01 -04:00
Thomas Harte
708c24cc57
This field is counted in half-cycles.
2021-04-26 21:20:32 -04:00
Thomas Harte
b7a62e0121
Adds SZX support.
...
Tweaking exposed Spectrum state object as relevant.
2021-04-26 20:47:28 -04:00
Thomas Harte
3348167c46
Ensures AY registers are conveyed.
2021-04-26 17:39:11 -04:00
Thomas Harte
700c505974
Ensures the ZX Spectrum properly reports its display type.
2021-04-25 21:16:22 -04:00
Thomas Harte
d403036d86
Reduce bounce at Spectrum startup.
2021-04-25 20:56:57 -04:00
Thomas Harte
5e08d7db39
Carries through paging state; avoids file rereads.
2021-04-25 20:46:49 -04:00
Thomas Harte
205518ba75
Switch to more efficient copy.
2021-04-25 16:51:07 -04:00
Thomas Harte
2510064218
Completes state object.
...
Subject to not yet dealing with last_fetches_ and last_contended_access_ correctly. Thought required.
2021-04-25 14:20:40 -04:00
Thomas Harte
0ef2806970
Adds just enough to ensure that border state gets through.
2021-04-25 14:16:35 -04:00
Thomas Harte
fd271d920b
Adds capture and forwarding of border colour.
2021-04-25 14:00:12 -04:00
Thomas Harte
2bbf8bc9fa
Ensures 16/48kb snapshots are properly copied into place.
2021-04-25 13:27:11 -04:00
Thomas Harte
a5098a60ec
Attempts to get in-SNA software to start.
2021-04-25 13:18:26 -04:00
Thomas Harte
0ebd900e40
Baby steps: apply Z80 state.
...
As far as it currently is. Since SNA is leaving the PC at the default of 0x0000, this currently has no visible effect.
2021-04-25 13:03:24 -04:00
Thomas Harte
cc78bfb229
Forwards most of the Z80 state.
2021-04-25 13:00:43 -04:00
Thomas Harte
d61f478a39
Basic sketch for state snapshots: an extra field on Target.
...
I think it doesn't make sense for states to own a target as that complicates the concept of Media. Plus they're distinct because it makes sense to have only one per Target. Let's see how this pans out.
2021-04-24 23:17:47 -04:00
Thomas Harte
9cc747b3e2
Resolves potential source of errors: specifying incorrect table size.
...
(Having made exactly this mistake with the ZX Spectrum)
2021-04-24 12:10:28 -04:00
Thomas Harte
37dcf61130
Add timing tests, fix +3 discrepancy.
2021-04-23 22:29:57 -04:00
Thomas Harte
9731fdd33b
Moves horizontal sync on the 48kb.
2021-04-21 19:46:44 -04:00
Thomas Harte
d0c789ff9a
Locks declarative form of contention closer to regular expressions.
2021-04-21 19:37:36 -04:00
Thomas Harte
9baa861742
Simplifies timing calculation expression.
2021-04-21 19:18:07 -04:00
Thomas Harte
9293bcbc88
Exclude the ROM from contention on 48kb and 128kb models.
2021-04-21 18:49:18 -04:00
Thomas Harte
ef01471e17
Ensures the DMA controller remains clocked.
2021-04-20 22:34:13 -04:00
Thomas Harte
db52f13c32
Disambiguates reset_all_keys
.
2021-04-19 21:49:06 -04:00
Thomas Harte
7bac18bd65
Address bus load time is not + 1/2.
2021-04-18 18:41:24 -04:00
Thomas Harte
704737144a
Corrects all interrupt timing for sign and off-by-one errors.
2021-04-18 18:40:44 -04:00
Thomas Harte
e87e851401
Add a redundant but idiomatic initial value.
2021-04-18 11:56:22 -04:00
Thomas Harte
80d4846a27
Respond with 0xff during an interrupt acknowledge.
2021-04-18 11:56:00 -04:00
Thomas Harte
9fd53c9c91
Adds the ZX Spectrum to ::AllMachines.
2021-04-17 23:06:37 -04:00
Thomas Harte
93422f4b1c
Brings timings into line with WoS specs.
2021-04-16 22:40:51 -04:00
Thomas Harte
7fdb1d848b
Corrects Spectrum 128kb partial decoding.
2021-04-16 21:54:52 -04:00
Thomas Harte
d7954a4cb1
Tweaks timing a little.
2021-04-15 21:51:49 -04:00
Thomas Harte
ef636da866
Attempts 48/128kb floating bus behaviour.
2021-04-15 21:19:21 -04:00
Thomas Harte
fa18b06dbf
Correct get_floating_value to be consistent in out-of-bounds behaviour.
2021-04-15 21:13:36 -04:00
Thomas Harte
349b9ce502
Don't post contended accesses other than on the +2a/+3.
...
Those machines have an actual latch for this stuff, the others don't.
2021-04-15 21:13:06 -04:00
Thomas Harte
71cf63bd35
Corrects internal cycle contention.
2021-04-15 19:17:11 -04:00
Thomas Harte
d1bb3aada4
Attempts to complete the in-machine application of contention.
2021-04-15 18:57:34 -04:00
Thomas Harte
b4214c6e08
Blocks off the AY from inputs in 48kb mode.
2021-04-15 18:04:16 -04:00
Thomas Harte
f5c7746493
Extends fast loading support to the just-introduced models.
2021-04-15 17:31:42 -04:00
Thomas Harte
f10ec80153
Gets started on different video timings.
2021-04-14 22:23:27 -04:00
Thomas Harte
0af405aa46
Starts working in the 48kb and 128kb Spectrums.
2021-04-14 21:37:10 -04:00
Thomas Harte
60e8273de2
Tweaks video timing, again.
2021-04-06 21:04:54 -04:00
Thomas Harte
dd28246f9f
Better indicate interrupt timing.
2021-04-06 12:06:13 -04:00
Thomas Harte
094d623485
Updates unit tests.
2021-04-05 21:33:04 -04:00
Thomas Harte
1266bbb224
Makes the TMS a sequence-point-generating JustInTimeActor.
2021-04-05 21:02:37 -04:00
Thomas Harte
fd88071c0a
Remove further detritus.
2021-04-05 17:21:26 -04:00
Thomas Harte
16bfe1a55c
Resolves use-after-return memory error.
2021-04-04 22:45:56 -04:00
Thomas Harte
90c3d6a1e8
Attempts a later interception of tape loading.
2021-04-04 22:39:30 -04:00
Thomas Harte
57b32d9537
Avoid adding additional threading constraints.
2021-04-04 20:48:15 -04:00
Thomas Harte
837b9499d5
Translates Oric video and Disk II into JustInTimeActors.
2021-04-04 20:43:16 -04:00
Thomas Harte
f26bf4b9e4
Splitting here isn't achieving anything.
2021-04-04 19:52:38 -04:00
Thomas Harte
1da51bee6c
14368 and six seem to be the proper numbers, per my comprehension of Patrick Rak.
2021-04-04 19:52:19 -04:00
Thomas Harte
5a66956221
Merge branch 'master' into SpeccyTiming
2021-04-04 19:12:37 -04:00
Thomas Harte
fa79589db8
Minor style improvements.
2021-04-04 18:59:46 -04:00
Thomas Harte
d77ddaf4fa
Switches the Electron to JustInTimeActor video.
...
Also reorders template parameters; I think that specifying a different time base is likely to be more common than using a divider.
2021-04-04 17:33:49 -04:00
Thomas Harte
afb4e6d37d
Merge branch 'master' into JITSleeper
2021-04-04 15:37:19 -04:00
Thomas Harte
158122fbf4
Determine TargetTimeScale
automatically.
2021-04-04 15:37:07 -04:00
Thomas Harte
14663bd06b
I think 3 is what I'm aiming for here.
...
But this probably isn't correct for IO cycles.
2021-04-02 07:36:57 -04:00
Thomas Harte
044ac949ba
Rearrange fields.
2021-04-01 12:44:00 -04:00
Thomas Harte
87317f5673
Improve documentation, pin down read/write times.
2021-04-01 12:38:58 -04:00
Thomas Harte
687c05365e
Flushes before set_last_contended_area_access
.
2021-03-31 22:52:41 -04:00
Thomas Harte
4f80523828
Tweaks contended timing.
2021-03-31 22:51:20 -04:00
Thomas Harte
acdbd88b9e
Merge pull request #896 from TomHarte/FastLoadUponInsert
...
Ensure CPC and Spectrum update fast-tape flag upon media insertion.
2021-03-28 11:44:01 -04:00
Thomas Harte
729edeac6c
Ensure CPC and Spectrum update fast-tape flag upon media insertion.
2021-03-27 18:08:46 -04:00
Thomas Harte
faaa4961ed
Attempts to rely on JustInTimeActor's built-in ClockingHint::Observer.
2021-03-26 23:54:08 -04:00
Thomas Harte
8a11a5832c
Uses GI::AY38910::Utility
far and wide.
2021-03-26 23:19:47 -04:00
Thomas Harte
465ecc4a78
Attempts to implement proper floating bus behaviour.
...
As per http://sky.relative-path.com/zx/floating_bus.html
2021-03-24 20:23:33 -04:00
Thomas Harte
03ef81b07c
Attempts to reduce initial bounce.
2021-03-23 17:12:00 -04:00
Thomas Harte
0ac11fc39e
Add floating bus.
2021-03-23 17:09:42 -04:00
Thomas Harte
3d0503a35e
Adds a genuine Spectrum mapping, tweaks timing.
2021-03-23 16:59:43 -04:00
Thomas Harte
ad8cb52f11
Improves const correctness.
2021-03-23 16:59:26 -04:00
Thomas Harte
496a294c71
Adds clocking observers for the tape and FDC.
2021-03-23 16:38:04 -04:00
Thomas Harte
465c74ab86
Adds the Spectrum side of typing.
...
The character mapper itself needs some Spectrum logic.
2021-03-23 10:44:43 -04:00
Thomas Harte
4e8f82a39c
Adds ZX Spectrum activity indicators.
2021-03-23 10:32:22 -04:00
Thomas Harte
d0776b58cf
Tweaks timing empirically.
2021-03-22 23:20:49 -04:00
Thomas Harte
6da099d7e1
Ensures the enter key is cleared before fast-loading tapes have loaded.
2021-03-22 22:42:10 -04:00
Thomas Harte
60e77785e8
Makes an attempt to provide the necessary hook for floating bus behaviour.
2021-03-22 22:34:28 -04:00
Thomas Harte
19cd6a55d3
Rejigs the way video is counted to orient it around fetch times.
2021-03-22 22:18:38 -04:00
Thomas Harte
08432dd94b
Adds automatic media starts.
2021-03-22 20:12:03 -04:00
Thomas Harte
3c1131a84b
Attempts to implement the +3.
2021-03-22 19:36:05 -04:00
Thomas Harte
c0abdf1b86
Factors out the CPC's simple FDC adaptor.
2021-03-22 19:12:10 -04:00
Thomas Harte
3ef2715eee
Implements the ROM version of fast loading.
2021-03-22 19:04:38 -04:00
Thomas Harte
4a12d7086d
Makes another guess at total colour phase.
2021-03-22 17:24:38 -04:00
Thomas Harte
a6b75b8637
Attempts improvements to video fetch timing. Alas, a lot of guess work here.
2021-03-22 15:59:03 -04:00
Thomas Harte
bdb3bce8d6
Corrects semantics on contended-timing calculation.
2021-03-22 15:48:51 -04:00
Thomas Harte
a26716919c
Switches to an is-in-video test that allows for video memory being paged twice.
...
This is trivially possible even in plain 128kb mode.
2021-03-22 15:46:02 -04:00
Thomas Harte
8dbc7649aa
Adds note-to-self re: FDC.
2021-03-22 09:15:00 -04:00
Thomas Harte
42a9dc7c2b
Minimises video flushing, moves it to the proper time.
2021-03-22 09:02:49 -04:00
Thomas Harte
7965772745
Moves contention delays up to the time of MREQ going active.
2021-03-21 23:04:20 -04:00
Thomas Harte
f37f89a7d3
Merge branch 'master' into ZXSpectrum
2021-03-21 22:44:37 -04:00
Thomas Harte
d987e5a9d7
Merge pull request #887 from TomHarte/ZX80Wait
...
Ensures no signalling to wait by a ZX80, ever.
2021-03-21 22:44:11 -04:00
Thomas Harte
c097ed348a
Ensures no signalling to wait by a ZX80, ever.
2021-03-21 22:38:50 -04:00
Thomas Harte
0f9ab53ea0
Resolves GCC warnings from dangling Apple IIgs work.
2021-03-21 22:36:18 -04:00
Thomas Harte
dd7419282d
Resolves GCC warnings from dangling Apple IIgs work.
2021-03-21 22:25:14 -04:00
Thomas Harte
7562917740
Adds the Spectrum to the macOS New... menu.
2021-03-21 21:50:50 -04:00
Thomas Harte
3925eee575
Attempts more relaxed decoding of AY accesses.
2021-03-21 21:03:35 -04:00
Thomas Harte
6482303063
Reduces code duplication slightly.
2021-03-21 20:34:58 -04:00
Thomas Harte
9ce1dbaebb
Switches to partial decoding for paging registers; permits video address changes after paging is locked.
2021-03-21 20:23:00 -04:00
Thomas Harte
064667c0c3
Corrects asymmetrical flash, ensures consistent burst phase.
2021-03-21 20:22:27 -04:00
Thomas Harte
58be770eaa
Factors out some boilerplate.
...
When I'm confident this is correct, I can fix up the other call sites.
2021-03-21 00:14:48 -04:00
Thomas Harte
1b0f45649e
Improves contended timing.
...
Still not quite on the money, but this was an overt bug.
2021-03-21 00:00:18 -04:00
Thomas Harte
42bfabbe8c
The implication seems to be of a fixed phase swing.
...
I'm enquiring further.
2021-03-20 23:46:13 -04:00
Thomas Harte
07a63d62dd
Adds some quick arithmetic on the clock speed.
2021-03-20 11:19:44 -04:00
Thomas Harte
26911a16e8
Lengthens sync, better to conform to PAL; experiments with fixed-phase colour burst.
...
I need to get hold of real documentation here.
2021-03-20 10:38:21 -04:00
Thomas Harte
cf9a5d595b
Completes piping of audio.
2021-03-19 23:33:46 -04:00
Thomas Harte
7729f1f3d0
Attempts automatic Spectrum tape control.
2021-03-19 22:43:48 -04:00
Thomas Harte
7d59ff6d8f
Builds in a colour burst, producing colour composite.
2021-03-19 22:25:37 -04:00
Thomas Harte
2ee478b4c4
Goes some way towards wiring up Spectrum options.
2021-03-19 22:17:20 -04:00
Thomas Harte
bb0d35e3d0
Minor formatting/layout fixes.
2021-03-19 22:17:03 -04:00
Thomas Harte
a482ce1546
Adds a tape player.
2021-03-19 11:12:50 -04:00
Thomas Harte
a35e1f4fbe
Starts to make formal Spectrum accommodations.
2021-03-19 11:06:09 -04:00
Thomas Harte
2371048ad1
Formally separates keyboard code.
...
With an eye to formalising the Spectrum/ZX81/ZX80 differences.
2021-03-19 10:36:08 -04:00
Thomas Harte
93b9ea67e6
Takes a run at contended timings.
2021-03-19 08:49:56 -04:00
Thomas Harte
f8c9ef2950
Add necessary header for memset.
2021-03-19 00:00:59 -04:00
Thomas Harte
87fac15cc4
This is going to remain purely a template; no .cpp.
2021-03-18 23:51:45 -04:00
Thomas Harte
2d51924a3c
Wires up Spectrum keyboard.
...
The machine now appears to be fully interactive and functional. Timing and media aside, that is.
2021-03-18 23:51:21 -04:00
Thomas Harte
c3d96b30d7
Factors out a little of the ZX81's keyboard logic.
2021-03-18 23:45:57 -04:00
Thomas Harte
44240773ef
Corrects address generation, ink/paper selection.
...
Seemingly to give a correct +2a boot. Time to add a keyboard and find out, I guess.
2021-03-18 23:30:48 -04:00
Thomas Harte
ed587a4db5
Provides a better no-port-here value.
2021-03-18 23:14:39 -04:00
Thomas Harte
020a04006e
Adds flashing, randomises initial RAM contents.
2021-03-18 23:07:51 -04:00
Thomas Harte
622a8abf7f
Takes a stab at pixel output.
2021-03-18 22:57:10 -04:00
Thomas Harte
871bac6c8a
Marks out and approximately centres a pixel region.
2021-03-18 22:41:20 -04:00
Thomas Harte
fe3e8f87e7
Takes a shot at an all-border output.
2021-03-18 22:29:24 -04:00
Thomas Harte
87fc7c02e8
Provides a base pointer for video output.
2021-03-18 22:04:41 -04:00
Thomas Harte
f2620e6afb
Adds a CRT. Not yet clocked.
2021-03-18 21:54:42 -04:00
Thomas Harte
ab2ad70885
Takes a run at interrupts.
2021-03-18 21:29:52 -04:00
Thomas Harte
135134acfd
Adds a shell for video emulation.
2021-03-18 12:47:48 -04:00
Thomas Harte
5664e81d48
It appears the +2a and +3 have a different clock rate.
2021-03-18 12:41:24 -04:00
Thomas Harte
c353923557
This can be constexpr.
2021-03-18 12:40:59 -04:00
Thomas Harte
b830d62850
Adds quick notes on port FE.
2021-03-18 12:32:54 -04:00
Thomas Harte
17f551e89d
Attempts a full audio wiring.
2021-03-18 12:23:54 -04:00
Thomas Harte
4a4da90d56
Implements some of the memory map, and instantiates audio objects.
2021-03-18 12:14:48 -04:00
Thomas Harte
404c1f06e6
Insert missing space.
2021-03-18 10:44:01 -04:00
Thomas Harte
730bfcd1fd
Stumbles towards a memory map.
2021-03-18 10:43:51 -04:00
Thomas Harte
97249b0edd
Slow walks further towards a functioning Spectrum.
2021-03-18 10:18:17 -04:00
Thomas Harte
5a1bda1d82
Performs boilerplate towards a ZX Spectrum class.
2021-03-17 23:38:55 -04:00
Thomas Harte
9bec91c2b9
Correct further namespace references.
2021-03-17 22:56:03 -04:00
Thomas Harte
3d1775d853
Correct namespace.
2021-03-17 22:52:23 -04:00
Thomas Harte
814c057570
Update further path references.
2021-03-17 22:46:25 -04:00
Thomas Harte
b63ca16ce2
Attempts to hatch a Sinclair namespace.
2021-03-17 22:40:29 -04:00
Thomas Harte
cdc19c6990
Adds TODO.
2021-03-15 11:39:15 -04:00
Thomas Harte
1a5dafae00
Slightly neatens.
2021-03-15 11:37:03 -04:00
Thomas Harte
d368dae94a
Adds tape motor LED.
2021-03-12 23:09:51 -05:00
Thomas Harte
7d778bc328
Formally introduces fast tape support as an option.
...
It doesn't feel that fast yet though.
2021-03-12 22:57:02 -05:00
Thomas Harte
7a8317ad81
It seems a full CRC is in play.
2021-03-12 22:45:48 -05:00
Thomas Harte
a32a2f36be
Advances to correctly reading bytes.
...
Something is still amiss though. Maybe I'm supposed to update the checksum?
2021-03-12 19:15:35 -05:00
Thomas Harte
cd215ef521
Stumbles towards supporting fast tape loading.
...
Right now: in a non-optional manner.
2021-03-12 18:42:17 -05:00
Thomas Harte
67408521cd
Makes absolutely sure not to try to use quickboot workaround for Mac 128kb/512kb.
...
Albeit that it should be harmless; it's just seeding RAM.
2021-03-06 22:34:35 -05:00
Thomas Harte
f05260b839
ZX80/1: fix initial key state, wait line when NMI disabled.
2021-03-06 21:59:45 -05:00
Thomas Harte
7b164de6fd
Reenables interrupts.
2021-03-06 18:53:39 -05:00
Thomas Harte
24e68166c6
Minor clean-ups of my temporary cruft.
2021-03-06 17:11:06 -05:00
Thomas Harte
b72474f418
Reduces debugging shout outs a touch.
2021-03-03 20:53:05 -05:00
Thomas Harte
38046d49aa
Increases debugging noise.
2021-03-03 20:52:14 -05:00
Thomas Harte
4601421aa6
This conditional is gone.
2021-03-03 20:52:01 -05:00
Thomas Harte
2f45e07d82
Further consolidates region map, now that shadowing is orthogonal.
2021-02-28 15:22:36 -05:00
Thomas Harte
496b6b5cfc
Introduces a further 128 bits of storage to eliminate the conditional in IsShadowed.
2021-02-28 15:14:32 -05:00
Thomas Harte
8604b1786e
Simplifies banks $02+ to a single region.
2021-02-27 23:34:51 -05:00
Thomas Harte
267e28e012
Adds various bits of debugging detritus.
2021-02-27 22:27:57 -05:00
Thomas Harte
631a8a7421
Adds bitset header.
2021-02-27 22:13:49 -05:00
Thomas Harte
7dcb0553e4
Switches to a target-centric view of shadowing.
2021-02-27 22:13:10 -05:00
Thomas Harte
2a7ea9f57c
Merge branch 'master' into AppleIIgs
2021-02-26 21:31:18 -05:00
Thomas Harte
9781460c41
Thanks to a hint from the MAME guys: finally completes Macintosh 128kb and 512kb emulation (!)
2021-02-26 21:22:35 -05:00
Thomas Harte
55c9d152e9
Slightly smarter: this does branchless shadowing without additional storage.
2021-02-24 18:46:41 -05:00
Thomas Harte
6cf9099ce1
Don't clear the mouse data full flag until both registers have been read.
2021-02-23 21:57:02 -05:00
Thomas Harte
e6dc39f6f0
Makes an attempt at mouse event transmission.
2021-02-19 22:48:15 -05:00
Thomas Harte
28ce675c96
Takes a further stab at ::CommandDataIsValid.
2021-02-19 22:22:14 -05:00
Thomas Harte
3d91b0a31b
Fixes keyboard data return.
...
Input sort of works now! Except that key repeat is way out of control.
2021-02-19 21:55:06 -05:00
Thomas Harte
5d1970d201
Adds a hacky different guess at how register access might work.
2021-02-19 21:46:18 -05:00
Thomas Harte
72d7901c88
Takes a shot at the keyboard data full flag.
...
Just a guess. But likely?
2021-02-19 20:06:12 -05:00
Thomas Harte
60cfec6a65
Amongst ever more cruft, adds a couple of extra asserts.
2021-02-18 22:49:48 -05:00
Thomas Harte
2e9065b34c
Increases number of fixed initial values.
2021-02-18 22:48:53 -05:00
Thomas Harte
e42843cca0
This may temporarily exhaust my wit for asserts.
2021-02-16 22:47:46 -05:00
Thomas Harte
3336a123f8
Asserts even more overtly.
2021-02-16 22:33:28 -05:00
Thomas Harte
28bd620e7f
Adds joystick support to the IIgs.
2021-02-16 19:39:22 -05:00
Thomas Harte
b117df3367
Factors out joystick logic.
2021-02-16 19:17:32 -05:00
Thomas Harte
fa8236741d
Takes a shot at an ADB mouse.
2021-02-15 20:49:16 -05:00
Thomas Harte
e16d5f33d1
Adds service requests. The microcontroller now appears to consume keyboard events.
2021-02-15 20:33:10 -05:00
Thomas Harte
e773b331cd
Implements register 2 listen.
2021-02-15 15:05:46 -05:00
Thomas Harte
99c21925f4
Makes attempt at keyboard mapping.
2021-02-15 15:00:12 -05:00
Thomas Harte
eccf5ca043
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.
2021-02-14 22:20:58 -05:00
Thomas Harte
24af62a3e5
Sets a default handler of 1.
2021-02-14 22:20:07 -05:00
Thomas Harte
52cf15c3e6
Attempts to route out modifier state.
2021-02-14 21:15:31 -05:00
Thomas Harte
a791680e6f
Implements set_status as per advice.
2021-02-14 21:04:20 -05:00
Thomas Harte
6e53b4c507
Corrects centralised ADB decoder.
...
I still think it's appropriate to do this in only a single place, given that using it is optional.
2021-02-14 20:41:05 -05:00
Thomas Harte
52c38e72f6
Starts seeking to automate register 3 handling.
...
Immediate pitfall: byte capture on the bus side isn't working correctly.
2021-02-14 20:37:33 -05:00
Thomas Harte
a51d143c35
Corrects reactive-device transmission logic.
...
Albeit that I'm still not properly responding to register 3 stuff, so the ADB bus needn't believe anything is out there. Also, without VSYNC being piped to the microcontroller it may well just not be polling anyway.
2021-02-14 18:54:22 -05:00
Thomas Harte
17e9305282
Starts adding a keyboard.
2021-02-13 23:16:45 -05:00
Thomas Harte
c284b34003
Resolves inability of ADB microcontroller to read its own ROM (!)
2021-02-13 17:53:40 -05:00
Thomas Harte
2ab3bba695
Attempts GLU register latching, restoring expected startup sequence.
2021-02-13 17:38:42 -05:00
Thomas Harte
2c4dcf8843
Edges towards implementing an ADB device.
2021-02-12 21:50:24 -05:00
Thomas Harte
ea40b2c982
Takes a stab at implementing device response.
2021-02-12 18:56:43 -05:00
Thomas Harte
adfdfa205f
Starts to establish the means by which I'll implement ADB devices.
2021-02-12 18:42:12 -05:00
Thomas Harte
33abdc95aa
Adds a helper for decoding ADB commands.
...
Still very noticeably to do: any sort of standard part for devices to respond to the bus.
2021-02-10 21:39:33 -05:00
Thomas Harte
6ca8aa99fc
Commit SDL and Qt project files; improve commenting.
2021-02-10 21:28:32 -05:00
Thomas Harte
17bac4c8cf
Starts to formalise the ADB bus.
2021-02-10 21:24:31 -05:00
Thomas Harte
46bd20b5e0
Attempts to simplify ADB bit parsing.
...
On-line output still looks reasonable, albeit that the microcontroller suddenly seems to be interested in devices F and 3 rather than 2 and 3.
2021-02-08 22:08:49 -05:00
Thomas Harte
93a80a30d3
With correct divider appears to get reset requests posted.
2021-02-07 23:05:01 -05:00
Thomas Harte
77b1efd176
Sets sensible 'reset' values.
2021-02-07 21:53:57 -05:00
Thomas Harte
acfab1dfb3
Starts to make some effort at timers.
2021-02-06 21:02:44 -05:00
Thomas Harte
6526c645a5
Merge branch 'master' into AppleIIgs
2021-02-02 21:29:38 -05:00
Thomas Harte
1e041f1adf
Flips conditionals to ensure 65802 safety.
2021-02-02 20:52:34 -05:00
Thomas Harte
beb514b231
Adds an additional mapping for copy.
2021-02-02 20:37:15 -05:00
Thomas Harte
f57e897085
Corrects visibility of SCSI output.
2021-02-02 20:24:39 -05:00
Thomas Harte
9f202d4238
Adds SCSI interrupt support.
2021-02-01 17:40:11 -05:00
Thomas Harte
1a40cc048e
Niceties: include AP6 ROM for hard-disk users; show SCSI activity indicator.
2021-01-31 21:41:11 -05:00
Thomas Harte
53514c7fdc
Ensures non-breakage of Qt interface.
2021-01-31 21:28:55 -05:00
Thomas Harte
274b3c7d24
Handles SCSI changes on-demand.
2021-01-31 21:24:54 -05:00
Thomas Harte
906b6ccdb7
This appears to be sufficient for the Electron to _read_ SCSI.
...
So that's step one.
2021-01-31 18:36:29 -05:00
Thomas Harte
8db289e229
Adds some notes-to-self on SCSI and a route to using Acorn's ADFS.
2021-01-31 13:12:59 -05:00
Thomas Harte
2860be7068
Permit a longer pause at startup for Electron commands that start with shift, control or func.
2021-01-31 12:25:22 -05:00
Thomas Harte
b5ecd5f7ef
Merge branch 'master' into AppleIIgs
2021-01-31 11:47:40 -05:00
Thomas Harte
4636d8dfb7
Adds support for installing the AP6 ROM and/or sideways RAM.
2021-01-30 19:38:19 -05:00
Thomas Harte
b8c6d4b153
Rips out my high-level ADB microcontroller protocol implementation.
...
Adds just enough that the main computer validates the ADB controller as present and talking.
2021-01-30 17:53:27 -05:00
Thomas Harte
f50e8b5106
If I'm going to maintain the max_address approach, & is 'correct'.
...
% +1 would be 'more correct', but I think this approach is probably misguided.
2021-01-27 18:31:11 -05:00
Thomas Harte
dcc2fe0990
Improves M50470 entry-point detection, adds test output.
2021-01-26 21:29:17 -05:00
Thomas Harte
56111c75ae
Makes first efforts towards disassembly.
2021-01-26 19:52:30 -05:00
Thomas Harte
fc4bda0047
Experimentally flipping interpretation of the output bit gives something closer to coherent.
2021-01-25 22:02:39 -05:00
Thomas Harte
c8beb59172
Attempts properly to track ADB bus activity.
...
Output is not yet a valid ADB stream. Work to do.
2021-01-25 17:43:22 -05:00
Thomas Harte
8789ffda15
Corrects performer storage, RMW/W confusion, implicit casts, port readback.
2021-01-24 22:30:42 -05:00
Thomas Harte
e8e604dc3c
Attempts to wire up M50470 and GLU.
...
Resulting in an unexpected interest in R15. Bugs to find, I guess.
2021-01-24 18:07:05 -05:00
Thomas Harte
57e0fdfadc
Ensures ADB microcontroller is clocked.
...
And runs at the 'correct' speed (i.e. modulo my instruction-by-instruction implementation).
2021-01-23 22:55:12 -05:00
Thomas Harte
ec0018df79
Routes in the ADB keyboard ROM. This should get as far as parsing.
2021-01-18 16:59:49 -05:00
Thomas Harte
12784a71e2
A stab in the dark: does the IOLC inhibit also affect vector fetches?
2020-12-29 20:53:56 -05:00
Thomas Harte
114d48b076
This register appears to be read/write.
2020-12-11 21:43:34 -05:00
Thomas Harte
6e9d517c26
Minor cleanliness improvement.
2020-12-11 21:43:13 -05:00
Thomas Harte
159924dcc0
More clarity tweaks.
2020-12-10 22:47:11 -05:00
Thomas Harte
5d8f284757
Makes minor style improvements.
2020-12-10 22:11:53 -05:00
Thomas Harte
c978a95463
Increases asserts and adds a test.
...
Thereby discovers and fixes a problem with set_main_paging().
2020-12-10 21:49:23 -05:00
Thomas Harte
dbdea95241
Ensure use_automatic_tape_control_
is always a valid bool.
2020-12-09 20:10:56 -05:00
Thomas Harte
1928c955d9
Ensures safe startup of the Ensoniq.
2020-12-09 19:46:32 -05:00
Thomas Harte
049a78c667
Slightly restricts video flushing test.
2020-12-08 18:47:15 -05:00
Thomas Harte
65ca931e83
Throws in a new assert, against the unimplemented bit 0 of new video.
2020-12-06 20:26:24 -05:00
Thomas Harte
6cb71eb11b
This needs explicitly to be a bool
for the table lookups to work.
2020-12-06 16:43:07 -05:00
Thomas Harte
43251193ee
The actual maximum line length is now 656.
2020-12-06 16:42:43 -05:00
Thomas Harte
55de98fb46
Adds a new statement of intent.
...
Now I need to try to decide whether I like my current all-in-one mapping for shadowing + paging, or whether it's better to split the things. I'm tending towards the latter at least until the functionality works.
2020-12-05 19:09:21 -05:00
Thomas Harte
1422d43c35
Corrects documentation errors and ambiguities.
2020-12-05 19:07:38 -05:00
Thomas Harte
6273ef8ba2
Adds means to force specific ROM 03 self tests.
2020-12-02 20:48:19 -05:00
Thomas Harte
3c6f09a898
Corrects super high-res aspect ratio and placement.
2020-12-02 20:47:26 -05:00
Thomas Harte
24fcb0c24b
Corrects video counter values.
...
The built-in speed test now passes.
2020-12-01 18:35:55 -05:00
Thomas Harte
03e2b6a265
Makes a slightly more rigorous attempt at discerning 1Mhz and 2.8Mhz operation.
2020-12-01 17:46:30 -05:00
Thomas Harte
ee22cf7ca1
Ensures that PAGE2 propagates from the state register to video.
2020-11-30 22:56:19 -05:00
Thomas Harte
187f507532
The soft switch is LCBANK2, not LCBANK1.
...
[This also jimmys the IIgs into always entering its extended self test, for now]
2020-11-30 22:35:51 -05:00
Thomas Harte
6000bd3a5e
Adds a bonus debugging assert. Let's see.
2020-11-30 18:15:02 -05:00
Thomas Harte
87069da3dd
Improves exposition, eliminates a couple of redundant map adjustments.
2020-11-30 18:07:03 -05:00
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
091bce9350
Merge branch 'master' into AppleIIgs
2020-11-29 00:09:20 -05:00
Thomas Harte
a965c8de9f
Resolves intended reset_all_keys.
2020-11-27 21:53:34 -05:00
Thomas Harte
79ef026b93
Allows machines to declare a preference for logical input.
...
It's only a preference, and the Apple II does prefer it.
2020-11-27 21:00:48 -05:00