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
Thomas Harte
46ee98639e
Stubs in $c010.
...
Also reduces memory map logging.
2020-11-04 21:35:11 -05:00
Thomas Harte
cc6c0d535c
Stubs in some of the sound GLU registers.
2020-11-04 21:29:44 -05:00
Thomas Harte
78b57e73d5
Hacks in a lying vertical blank value.
2020-11-04 21:18:27 -05:00
Thomas Harte
9e2a6526d1
Corrects interpretation of bit 3 of the state register.
...
And attempts to be a bit more careful with the language card in general.
2020-11-04 21:15:10 -05:00
Thomas Harte
d3c7253981
Shifts size-limiting of X and Y to transitions and mutations, away from reads.
...
Primarily to remove potential bug-causing complexity — this is easier to debug. But let's see.
2020-11-04 20:35:41 -05:00
Thomas Harte
0178aaee2b
Attempts retroactively to enforce the rule that 8-bit index modes => no top byte.
...
(Rather than a preserved but ignored top byte)
2020-11-02 18:55:28 -05:00
Thomas Harte
53f60f7c87
Adds some notes for a pending ADB implementation.
2020-11-01 14:49:04 -05:00
Thomas Harte
2da71acefd
Stubs in the ADB GLU.
2020-10-31 21:00:15 -04:00
Thomas Harte
45f5896b76
Stubs video switches into the IIgs.
2020-10-31 20:39:32 -04:00
Thomas Harte
531a3bb7e6
Ensures RAM is zero-initialised, for now, to aid in repeatable bug finding.
2020-10-31 20:03:23 -04:00
Thomas Harte
1b28d929e4
Factors out the Apple II/IIe video switches and mode selection logic.
2020-10-31 20:02:50 -04:00
Thomas Harte
e4459b6256
Adds power-on bit to speed register.
2020-10-30 21:50:39 -04:00
Thomas Harte
2be817a6a1
Maps in "the interrupt ROM addresses".
2020-10-30 21:42:43 -04:00
Thomas Harte
a833bb892b
Increases logging substantially.
2020-10-30 20:11:55 -04:00
Thomas Harte
0d562699a2
Ensures unmapped regions are really unmapped.
2020-10-29 22:18:01 -04:00
Thomas Harte
034056d0cd
Adds full 8-bit clock addressing; stubs clock into the IIgs.
2020-10-29 21:38:36 -04:00
Thomas Harte
1249fb598b
Factors Apple's RTC out of the Macintosh.
2020-10-29 21:03:02 -04:00
Thomas Harte
5a8b8478d2
Corrects unhandled IO assert.
...
The IIgs proper is actually waiting on communication with the RTC.
2020-10-28 22:14:02 -04:00
Thomas Harte
6c54699c44
Connects up an SCC.
...
Thereby putting my IIgs into its first perpetual loop. Trying to do something with the SCC I haven't implemented yet perhaps?
2020-10-28 22:07:34 -04:00
Thomas Harte
94a6da6b7d
Exposes much of the auxiliary and language card stuff to the IIgs bus.
2020-10-28 21:58:20 -04:00
Thomas Harte
885fae1534
Stubs in a speed register.
2020-10-28 21:23:45 -04:00
Thomas Harte
1e4679ae14
Corrects JSL
and RTL
.
2020-10-28 17:25:40 -04:00
Thomas Harte
267dd59a59
Gets as far as seemingly yet another memory-map setting.
...
Tomorrow, maybe?
2020-10-27 22:31:58 -04:00
Thomas Harte
0a91ac5af5
Adds some extra notes, starts getting into trying to run the IIgs.
2020-10-27 22:09:45 -04:00
Thomas Harte
ad93ad6018
Attempts to finish off shadowing.
2020-10-27 22:05:04 -04:00
Thomas Harte
0c700094ea
Goes branchless on shadowing.
2020-10-27 21:56:03 -04:00
Thomas Harte
20631a157b
Contorts somewhat in pursuit of branchless shadowing regardless of page and without extra storage.
2020-10-27 21:37:39 -04:00
Thomas Harte
e44f95a882
Takes a first, faltering shot at shadowing.
2020-10-27 19:49:47 -04:00
Thomas Harte
31cd45f8b5
Takes a run at set_card_paging and simplifies method of shadowing.
2020-10-27 19:33:47 -04:00
Thomas Harte
74f9f6ad3b
Tests and corrects ROM access beyond bank $00.
2020-10-27 19:02:15 -04:00
Thomas Harte
1dfdb51e61
Hits a few other easy cases.
...
Still to do: card paging, and finding out which banks that applies to, and shadowing. So: everything with flags.
2020-10-26 21:49:47 -04:00
Thomas Harte
18832dc19d
Attempts to expand the language card stuff to all affected pages.
2020-10-26 20:30:41 -04:00
Thomas Harte
3dee0666cb
Corrects current bank $00 language card behaviour.
2020-10-26 17:46:40 -04:00
Thomas Harte
f830f6a57a
Adds failing test of initial ROM mirroring.
...
It's the end of the evening, so this is it for today.
2020-10-25 22:13:54 -04:00
Thomas Harte
82c733c68c
Adds some very basic actual tests.
2020-10-25 21:40:50 -04:00
Thomas Harte
ed510409c4
Starts memory map test class, already finding a typo.
2020-10-25 21:31:21 -04:00
Thomas Harte
7614eba4bf
Factors out the IIgs memory map logic.
...
As testing would be rational.
2020-10-25 21:10:04 -04:00
Thomas Harte
13c8032465
ROM isn't writeable. The clue is in the name.
2020-10-25 18:29:17 -04:00
Thomas Harte
44fc08cd5b
Switches to a mapping system that supports non-continuous regions, and is smaller.
2020-10-25 18:28:32 -04:00
Thomas Harte
7631b11c55
Corrects double low-res colour serialisation.
2020-10-24 19:26:32 -04:00
Thomas Harte
726b5f62bb
Corrects read/write access to auxiliary soft switches.
2020-10-24 19:00:03 -04:00
Thomas Harte
ddd84db510
Edges towards a functioning IIgs memory map.
...
Next up: making sure language and auxiliary switches apply. That should get something from the ROM.
2020-10-23 19:41:10 -04:00
Thomas Harte
966241b4cc
Adds documentation, ensures the language card signals less noisily.
2020-10-23 18:44:47 -04:00
Thomas Harte
9371a8993f
Factors out auxiliary memory switches and related decisions.
2020-10-22 22:33:31 -04:00
Thomas Harte
410c99de54
Factors out the language card memory selection logic.
2020-10-22 21:01:12 -04:00
Thomas Harte
817f93a490
Edges towards a working memory subsystem. At least structurally.
2020-10-22 19:25:04 -04:00
Thomas Harte
43611792ac
Adds just enough to get a 65816 ticking over.
2020-10-21 21:19:18 -04:00
Thomas Harte
62231708d7
read_pages_
can be const
.
2020-10-21 21:17:15 -04:00
Thomas Harte
5287c57ee0
Adds the IIgs as a user-selectable machine.
...
Albeit that there is no underlying machine yet.
2020-10-20 22:18:11 -04:00
Thomas Harte
5651ef606d
Resolves failure to advance video address when output is blocked.
2020-09-15 22:20:06 -04:00
Thomas Harte
e113780fd1
Minor: ensures no possibility of a dangling(-ish) pointer within the Mac video.
2020-09-10 22:13:19 -04:00
Thomas Harte
e32ae6c191
Adds UGLY HACKs to workaround uncovered issues in the OpenGL scan target.
2020-09-10 22:10:24 -04:00
Thomas Harte
3597f687de
Continues sidling towards composite & S-Video handling.
2020-08-19 21:20:06 -04:00
Thomas Harte
1942742d73
Resolves thread data race on Macintosh audio output.
2020-07-28 22:21:52 -04:00
Thomas Harte
cbb0594e6b
Use 16-sector state machine even with the 13-sector boot ROM.
...
I think I've proven that the Disk II doesn't decode the 13-sector state machine correctly. Work to do there.
2020-07-16 23:27:27 -04:00
Thomas Harte
495024d6fe
Cleans up all redundant lock/unique_guard declarations.
2020-06-15 00:24:10 -04:00
Thomas Harte
73131735fa
Further qmake warning corrections.
2020-05-30 19:31:17 -04:00
Thomas Harte
48afc54af6
Cuts down unused parameter warnings to just a few that may well indicate implementation errors.
2020-05-30 01:06:43 -04:00
Thomas Harte
267006782f
Starts to add Qt target; resolves many build warnings.
2020-05-30 00:37:06 -04:00
Thomas Harte
512a52e88d
Increases const correctness, marks some additional constructors as constexpr, switches std::atomic construction style.
2020-05-20 23:34:26 -04:00
Thomas Harte
25996ce180
Further doubles down on construction syntax for type conversions.
2020-05-09 23:00:39 -04:00
Thomas Harte
eed357abb4
Introduces concept of 'average peak volume' in order better to normalise audio sources like the OPLL.
2020-05-09 17:57:21 -04:00
Thomas Harte
f417fa82a4
Splits 'CRTMachine' into three parts: ScanProducer, AudioProducer, TimedMachine.
...
Simultaneously cleans up some of the naming conventions and tries to make things a bit more template-compatible.
2020-04-01 23:19:34 -04:00
Thomas Harte
311458f41f
Restores Macintosh 'runtime' options.
...
Also cleans up some leftover parts elsewhere.
2020-03-18 21:50:02 -04:00
Thomas Harte
ec6664f590
Takes steps to guarantee property naming; reintroduces Electron runtime options.
2020-03-17 23:52:55 -04:00
Thomas Harte
b6e81242e7
Reintroduces Apple II runtime options.
2020-03-17 21:53:26 -04:00
Thomas Harte
394ee61c78
Starts a switch to reflectable-style runtime options.
...
The Amstrad CPC and ZX80/81 have made the jump so far, subject to caveats. The macOS build is unlikely currently to work properly.
2020-03-16 23:25:05 -04:00
Thomas Harte
8e3bf0dbca
Starts moving towards a Deflectable-based system of runtime options.
2020-03-15 23:48:53 -04:00
Thomas Harte
1a2872c815
Starts to build an easy set
interface.
2020-03-13 22:42:37 -04:00
Thomas Harte
0502e6be67
Starts working towards a registration-based model of reflective enums.
2020-03-10 22:32:55 -04:00
Thomas Harte
1f41d9c5f5
Further improvement: if in physical mode, but pressing an unrecognised key, attempt to 'type' it.
2020-03-02 22:08:54 -05:00
Thomas Harte
ed18092088
Extends logic for when to fall back on standard keypress logic even in logical mode.
2020-03-01 20:25:12 -05:00
Thomas Harte
50d356be2f
Ensures all audio sources, including compound sources, announce whether they're stereo correctly.
2020-02-16 18:31:45 -05:00
Thomas Harte
9835e800ec
Fixed: individual audio generators now either are or are not stereo. The speaker acts accordingly.
2020-02-16 18:28:03 -05:00
Thomas Harte
e02d109864
Nudges the LowpassSpeaker towards supporting stereo generation.
2020-02-15 18:03:12 -05:00
Thomas Harte
9ca2d8f9f2
Tried to be less lazy with lambda captures.
...
This is primarily defensive.
2020-02-14 23:39:08 -05:00
Thomas Harte
3df99788ff
Removes TODOs, as I think they're probably inappropriate.
2020-02-13 21:19:23 -05:00
Thomas Harte
3600d2d193
Starts switching towards a byte-oriented bus.
2020-02-13 21:14:13 -05:00
Thomas Harte
ff39f71ca0
Eliminates meaningless constants from the Macintosh video's CRT setup.
2020-01-30 23:29:04 -05:00
Thomas Harte
f0a6e0f3d5
Splits out the queue management stuff from queue+action.
...
Temporarily breaks ST video in the endeavour.
2020-01-29 22:18:41 -05:00
Thomas Harte
7316a3aa88
Merge branch 'master' into FinalOverride
2020-01-26 23:42:25 -05:00
Thomas Harte
79bb0f8222
Updates comment.
2020-01-26 11:36:06 -05:00
Thomas Harte
294e09f275
All these 'override's can be 'final's.
...
At least for the purpose of being communicative. I doubt there's much to gain in terms of compiler output — the DiskImageHolder can avoid some virtual lookups but nothing else leaps out.
2020-01-23 22:57:51 -05:00
Thomas Harte
a71c5946f0
Ensures proper manipulation of scan_statuses, leading to the correct result out of a CRTMachine.
...
Possibly with the exception of the TMS, as I appear to have uncovered an unrelated issue there.
2020-01-21 22:28:25 -05:00
Thomas Harte
d97a073d1b
Adds the necessary routine for all machines to be able to respond to get_scan_status.
...
They all just as the CRT, as all are currently based on the CRT. Which doesn't currently know the total clock rate it would need to in order properly to scale the answer to the question. Further thought coming.
2020-01-20 21:45:10 -05:00
Thomas Harte
c1bae49a92
Standardises on read
and write
for bus accesses.
...
Logic being: name these things for the bus action they model, not the effect they have.
2020-01-05 13:40:02 -05:00
Thomas Harte
0dae608da5
Embraces std::make_[unique/shared] in place of .reset(new .
2019-12-23 21:31:46 -05:00
Thomas Harte
5456a4a39d
Eliminates static
where constexpr
a aren't class members; adds some if constexpr
s for clarity.
2019-12-22 13:42:24 -05:00
Thomas Harte
274867579b
Deploys constexpr
as a stricter const
.
2019-12-22 00:22:17 -05:00
Thomas Harte
2c25135d8a
Fixes const correctness for joystick machines; the ST is now one such.
2019-11-09 18:19:05 -05:00
Thomas Harte
860837d894
Corrects: KeyPad -> Keypad. Also fleshes out Atari ST keyboard mapping.
2019-11-09 18:02:14 -05:00
Thomas Harte
1c154131f9
Expands size of storage in Cycles/HalfCycles; adjusts widely to compensate.
2019-10-29 22:36:29 -04:00
Thomas Harte
1d790ec2a9
Adds the option for a clock conversion to JustInTimeActor and slows the MFP's clock rate.
2019-10-28 21:35:10 -04:00
Thomas Harte
c4ef33b23f
JustInTimeActors can now specify a clock divider.
2019-10-20 20:38:55 -04:00
Thomas Harte
4ac3839185
Seeks to ensure that card transitions between real-time and just-in-time don't break timing.
2019-09-28 18:34:04 -04:00
Thomas Harte
fbf95ec2b8
Removes the now empty local namespace.
2019-09-24 22:48:47 -04:00
Thomas Harte
077c7d767f
Shifts essential modifiers up to the Keyboard class.
...
I had forgotten that mappers are not exposed.
2019-09-22 13:48:50 -04:00
Thomas Harte
a416bc0058
Adds an interface allowing keyboard mappers to declare modifiers that are 'essential'.
...
i.e. ones that, if not delivered reliably, will cause the related machine to behave unexpectedly.
2019-09-22 13:14:09 -04:00
Thomas Harte
5f16fa8c08
Removes dead reference to video from VIAPortHandler.
2019-09-21 17:39:45 -04:00
Thomas Harte
e7bf0799b6
Implements every-other-cycle-during-pixels RAM timing.
2019-09-21 17:25:20 -04:00
Thomas Harte
2e24da4614
Implements quick booting, and edges towards exposing it on the Mac.
...
It should already work in kiosk mode.
2019-09-19 22:32:12 -04:00
Thomas Harte
e46601872b
Establishes that the Macintosh offers the quick-boot option.
2019-09-19 21:50:39 -04:00
Thomas Harte
776b819a5a
Adds the SCSI bus as an Activity::Source.
2019-09-19 19:31:22 -04:00
Thomas Harte
962275c22a
Removes clock for NCR 5380.
...
It doesn't have one in real life, and now can live off the time counting that occurs on the SCSI bus.
2019-09-18 20:17:47 -04:00
Thomas Harte
243e40cd79
Adds signalling of DACK.
2019-09-14 13:48:33 -04:00
Thomas Harte
1c7e0f3c9d
Fixes control line modification by the 5380 and SCSI target command chaining.
...
So now I'm back to trying to guess how a SCSI command terminates re: the relative meanings of a message phase and a status phase.
2019-09-02 23:14:37 -04:00
Thomas Harte
318cdb41ea
Adds SCSI bus clocking to the Macintosh, and fixes its internal counting.
2019-09-02 16:03:33 -04:00
Thomas Harte
2f8e31bc8b
Takes a first bash at implementing the new SCSI::Bus timing infrastructure.
2019-09-02 13:00:01 -04:00
Thomas Harte
1a60ced61b
Starts trying to deal with creating a whole volume from merely a partition.
2019-08-25 23:03:54 -04:00
Thomas Harte
ca08716c52
Introduces real hard disk images to the nascent world of SCSI.
2019-08-25 17:03:41 -04:00
Thomas Harte
90cf99b626
Takes a wild swings at speeding up startup.
...
With no success.
2019-08-18 22:40:16 -04:00
Thomas Harte
f668e4a54c
Makes an attempt at getting the 5380 past arbitration.
...
Not entirely successful. Also gets a bit smarter with `final` on ClockingHint::Sources.
2019-08-15 23:14:40 -04:00
Thomas Harte
0f67e490e8
Adjusts NCR address decoding to produce a more plausible initial interaction.
2019-08-11 22:43:25 -04:00
Thomas Harte
895c315fa5
Increases the Mac Plus too 4mb.
2019-08-11 21:41:12 -04:00
Thomas Harte
a90a74a512
Stubs in just enough of the 5380 to get a Mac Plus too boot.
2019-08-11 20:55:20 -04:00
Thomas Harte
bbd4e4d3dc
Enhances memory map fidelity to allow for ROM holes on the Mac Plus.
...
This is how the ROM detects the difference between the Plus and the 512ke, it seems.
2019-08-10 23:53:34 -04:00
Thomas Harte
bac0461f7f
Switches the drive-speed accumulator to the delegate pattern.
...
This allows the Macintosh to ensure that the IWM is kept up just-in-time with drive speed changes.
2019-08-07 21:39:23 -04:00
Thomas Harte
f26a200d78
Switches to a JustInTimeActor to wrap the IWM.
...
Also simplifies potential future usage of the IWM template.
2019-08-07 21:28:02 -04:00
Thomas Harte
0e293e4983
Relocates RAM delay test in order to scrape out a minor performance win.
2019-08-03 21:46:45 -04:00
Thomas Harte
478f2533b5
Corrects 68000 address bus during interrupt acknowledge.
...
All unused bits should be 1, not 0.
2019-08-03 15:38:36 -04:00
Thomas Harte
a07488cf1b
Introduces the Mac Plus memory map.
...
Albeit with no SCSI support yet.
2019-08-02 22:26:40 -04:00
Thomas Harte
d67c5145c0
Introduces RAM access delays.
2019-08-02 22:12:34 -04:00
Thomas Harte
5e76d593af
Switches to table-based address decoding.
2019-08-02 21:30:04 -04:00
Thomas Harte
b93f9b3973
Distinguishes time advancement from bus response.
2019-08-02 19:48:41 -04:00
Thomas Harte
96005261c7
Adds activity lights for Macintosh disk activity.
...
Prompting a quick fix to drives not spinning down.
2019-08-02 16:26:23 -04:00
Thomas Harte
c8177af45a
Introduces missing implementation file.
2019-08-02 16:26:08 -04:00
Thomas Harte
97eff5b16d
Formally distinguishes Macintosh keys from virtual keys.
...
Also: adds mappings for keypad keys, and corrects a couple of
long-standing capitalisation errors in my virtual key set.
2019-08-02 16:15:34 -04:00
Thomas Harte
9bbccd89d3
Adds an extended rationale for current implementation.
...
Also strips some cruft of prior guesses.
2019-07-31 23:19:46 -04:00
Thomas Harte
260843e5b1
Starts poking at a pure total-based formula.
...
On the assumption that any relevant DC offset will fall out in the wash. This causes one 400kb disk to boot in a Macintosh 128kb, another couple to do reasonably well. So it's better than what was here before.
2019-07-31 12:42:23 -04:00
Thomas Harte
e3f22e5787
This should actually be PWM, I think.
...
I'm just unsure of exactly the proper formula, owing to my ignorance on basic electrical engineering. Research ahoy!
2019-07-30 22:02:41 -04:00
Thomas Harte
2aa308efdd
Tweaks magic formulas.
...
The computer now at least seeks outward, until this attempt at drive speed calculation fails.
2019-07-30 16:18:36 -04:00
Thomas Harte
74c18d7861
Attempts a full wiring up of 400kb drive speed.
2019-07-30 15:08:55 -04:00
Thomas Harte
a43ada82b2
Experiments with a JustInTimeActor in the Master System.
2019-07-29 15:38:41 -04:00
Thomas Harte
5149f290d0
Starts trying to formalise just-in-time execution.
...
Which, at least, simplifies Cycle/HalfCycle to Cycle run_for usage via template.
2019-07-28 21:49:54 -04:00
Thomas Harte
f894d43111
Removes the video and audio base address latches.
...
It now seems to me that these take effect immediately.
2019-07-27 22:23:40 -04:00
Thomas Harte
d8bc20b1ab
Ensures quieter Release behaviour.
2019-07-25 22:55:27 -04:00
Thomas Harte
109d5d16bd
Withdraws optimisation, for further testing in the future.
2019-07-25 10:33:38 -04:00
Thomas Harte
1672dc5946
Reduces frequency of update_video()
calls.
2019-07-25 10:14:52 -04:00
Thomas Harte
0469f0240b
Moves interrupt level selection outside the loop.
2019-07-23 23:13:03 -04:00
Thomas Harte
b4191b6225
Corrects DiskII boot ROM CRCs and improves corresponding declarations.
2019-07-22 23:07:23 -04:00
Thomas Harte
dbee37ab34
Provides extended ROM details for the VIC-20 and Oric.
2019-07-22 22:15:44 -04:00
Thomas Harte
2432151bf8
Puts machine name into ROMMachine::ROM.
...
Also switches to idiomatic exit codes.
2019-07-22 21:14:21 -04:00
Thomas Harte
3c68a5ca65
Enhances the amount of ROM information posted by the Apple machines.
2019-07-20 16:08:40 -04:00
Thomas Harte
20670bab2f
Expands information included in ROM load requests.
2019-07-19 22:35:22 -04:00
Thomas Harte
b9a34bee51
Substitutes a more efficient inner loop for audio generation.
2019-07-17 14:54:06 -04:00
Thomas Harte
22ee51c12c
Corrects clocking issues around audio, and cuts down queue costs.
2019-07-17 14:41:36 -04:00
Thomas Harte
59b5dfddec
Added logic to allow a second disk to be inserted, at least.
2019-07-11 23:03:02 -04:00
Thomas Harte
cac97a9663
Devolves drive responsibility.
2019-07-10 22:39:56 -04:00
Thomas Harte
2ccb564a7b
Throws some extra logging into place, to test the IWM changeover.
2019-07-10 21:39:45 -04:00
Thomas Harte
d1d0430fce
Eliminates the SonyDrive class.
2019-07-10 17:38:05 -04:00
Thomas Harte
be251d6b03
Begins substituting the DoubleDensityDrive for the Sony.
2019-07-10 16:24:48 -04:00
Thomas Harte
c4ab0bb867
Starts sketching out an interface for IWM drives, eliminating a dangling use of unsigned
as it goes.
2019-07-10 16:05:59 -04:00
Thomas Harte
886946cc8c
Rejigs time-until-event tracking.
2019-07-09 23:27:27 -04:00
Thomas Harte
ed4ddcfda8
Reduces call/return overhead on Microcycle methods.
2019-07-09 19:55:30 -04:00
Thomas Harte
7886cd63bd
Flattens the Macintosh's perform_bus_operation, for legibility.
2019-07-09 19:49:06 -04:00
Thomas Harte
b4a3f66773
Restores just-in-time processing of video.
2019-07-09 18:08:07 -04:00
Thomas Harte
52e96e3d2a
Documents and extends the Video
interface.
...
With the intention of returning it soon to JIT execution.
2019-07-08 22:28:05 -04:00
Thomas Harte
1a9aa60bf7
Ensures no compiler will think this can exit without returning.
2019-07-08 18:13:23 -04:00
Thomas Harte
793c2df7ee
Fixes keypad keys.
2019-07-08 16:38:06 -04:00
Thomas Harte
28de629c08
Fixes the 6522 sufficiently to fix keyboard input.
2019-07-08 15:29:34 -04:00
Thomas Harte
d7329c1bdd
Experiments with a timeout on keyboard interactions.
2019-07-07 14:13:55 -04:00
Thomas Harte
96c0253ee2
Fixes mouse input when a button is pressed; attempts keyboard input.
...
I think the VIA is somehow sending spurious commands.
2019-07-02 21:14:33 -04:00
Thomas Harte
191a7a9386
Reintroduces an empty second drive.
...
This prevents the uninitialised disk error. Which is a clue.
2019-07-02 16:59:00 -04:00
Thomas Harte
fffe6ed2df
Chops the Macintosh down to a single drive to aid in development.
2019-07-02 13:59:30 -04:00
Thomas Harte
6c588a1510
Makes some further random swings at tracking the startup procedure.
2019-06-28 13:03:47 -04:00
Thomas Harte
d81053ea38
Invents some additional PEA tests, and further fixes PEA.
2019-06-27 17:59:03 -04:00
Thomas Harte
506276a2bd
Corrected: use format tag as intended.
2019-06-18 14:04:28 -04:00
Thomas Harte
00c32e4b59
Further miscellaneous changes to debug logging. All temporary.
2019-06-18 10:34:31 -04:00
Thomas Harte
877b46d2c1
Advances IWM/drive emulation very close to the point of 'Welcome to Macintosh'.
2019-06-15 16:08:54 -04:00
Thomas Harte
bde975a3b9
Possibly mights the tiniest bit of headway with 'the IWM'.
...
I'm now pretty sure that my 3.5" drive, which for now is implemented in the IWM (yuck) is just responding to queries incorrectly.
2019-06-13 22:38:09 -04:00
Thomas Harte
f6f9024631
Corrects Macintosh aspect ratio (and framing).
2019-06-13 18:41:38 -04:00
Thomas Harte
5630141ad7
Ensures randomised memory contents at startup.
2019-06-13 13:35:16 -04:00
Thomas Harte
d6150645c0
By hook or by crook, mouse input now works.
2019-06-12 22:19:25 -04:00
Thomas Harte
ccd2cb44a2
Fills in enough of the SCC to allow completion of the Macintosh side of that relationship.
2019-06-12 17:51:50 -04:00
Thomas Harte
c8066b01b6
Restores attempt at proper audio behaviour.
2019-06-11 19:53:22 -04:00
Thomas Harte
ebd59f4dd3
Performs the trivial part of wiring up the Macintosh mouse.
...
SCC still to go.
2019-06-11 19:52:37 -04:00
Thomas Harte
109953ef49
Ensures proper routing of mouse events from Cocoa.
2019-06-11 18:41:41 -04:00
Thomas Harte
124c7bcbb0
Makes the Macintosh a mouse machine, and makes mouse machines detectable.
2019-06-11 18:21:56 -04:00
Thomas Harte
9230969f43
Corrects enough of the 6522 and Keyboard to get an initial command seemingly working.
2019-06-10 09:28:27 -04:00
Thomas Harte
697e094a4e
Sketches out the absolute basics of an SCC interface.
2019-06-08 18:47:11 -04:00
Thomas Harte
7591906777
Numerous IWM fixes: the machine now seems to be trying to measure the tachometer.
2019-06-06 18:32:11 -04:00
Thomas Harte
a413ae11cb
Makes some sort of first attempt at having the IWM read.
2019-06-04 22:13:00 -04:00
Thomas Harte
833258f3d7
Sets things up to allow variable rotation rates, and especially Sony 800kb-style self-selecting rates.
2019-06-04 21:41:54 -04:00
Thomas Harte
661fe1e649
Disables logging, for now.
2019-06-03 15:57:53 -04:00
Thomas Harte
85298319fa
Expands towards supporting multiple Macintosh models.
...
To provide another variable to help with bug isolation.
2019-06-03 14:50:36 -04:00
Thomas Harte
881feb1bd3
Adds preliminary parsing of the Disk Copy 4.2 format.
2019-06-02 13:39:25 -04:00
Thomas Harte
3e9fa63799
Adds a receiver for drive-motor control bytes.
...
My new belief is that I'm either reading the buffer from the wrong place, or the 68000 isn't filling it for some reason.
2019-06-01 19:31:32 -04:00
Thomas Harte
983407896c
Ensures consistent audio pipeline.
2019-06-01 17:29:57 -04:00
Thomas Harte
5c08bb810e
In theory provides a full implementation of audio.
...
Albeit seemingly ineffective.
2019-06-01 15:44:29 -04:00
Thomas Harte
17635da812
Pushes Mac audio further towards being able to function.
2019-06-01 15:18:27 -04:00
Thomas Harte
6d985866ee
All proper inputs are now provided to the audio generator.
...
Hopefully. The next job is to generate audio. If that sounds correct, then the disk motor speed question can be tackled.
2019-06-01 15:03:15 -04:00
Thomas Harte
723137c0d4
With some time additions to the 6522, starts wiring in Macintosh audio.
...
The audio buffer is also the disk motor buffer, so this is preparatory to further disk work.
2019-06-01 14:39:40 -04:00
Thomas Harte
4632be4fe5
Wires up the final IWM signal, SEL, preparatory to an implementation.
2019-05-30 12:08:00 -04:00
Thomas Harte
0848fc7e03
Ensures the Mac uses auto vectored interrupts.
2019-05-28 16:24:41 -04:00
Thomas Harte
5e2496d59c
Simplifies and corrects MOVE logic.
2019-05-28 15:17:03 -04:00
Thomas Harte
1d3dde32f2
Ensures final byte of data can be accessed.
2019-05-09 07:24:26 -04:00
Thomas Harte
41740fb45e
Implements video position feedback.
...
At a substantial performance cost for now, but I'll worry about that once things are working.
2019-05-08 16:54:19 -04:00
Thomas Harte
0ad88508f7
Removes ROM mirroring above $600000.
2019-05-08 15:07:03 -04:00
Thomas Harte
8b72043f33
Ensures no uninitialised variables.
2019-05-08 14:54:54 -04:00
Thomas Harte
f0f9722ca6
Takes a first crack at the keyboard's serial protocol.
...
Albeit that without a working shift register in the VIA, this shouldn't really work yet.
2019-05-08 14:20:28 -04:00
Thomas Harte
b5ef88902b
Edges further towards a functioning keyboard.
2019-05-08 13:58:52 -04:00
Thomas Harte
7b466e6d0a
Begins work on a functioning keyboard.
2019-05-08 12:34:26 -04:00
Thomas Harte
7e6d4f5a3e
Adds emulation of the real-time clock.
2019-05-08 00:12:19 -04:00
Thomas Harte
ce099a297a
Eliminates RAM writes in ROM area.
...
I no longer think that logic is correct.
2019-05-07 17:16:22 -04:00
Thomas Harte
949c848815
Broadens address decoding.
...
To no obvious change in output.
2019-05-06 22:57:29 -04:00
Thomas Harte
9bf9b9ea8c
Ensures unmapped peripherals return a consistent value.
2019-05-06 21:32:10 -04:00
Thomas Harte
a131d39451
I now believe only the 6522 is on the synchronous bus.
2019-05-06 14:10:13 -04:00
Thomas Harte
b540f58457
Sets a more appropriate display type.
2019-05-05 23:22:05 -04:00
Thomas Harte
4f5a38b5c5
Adds support for the alternate video buffer.
2019-05-05 23:05:24 -04:00
Thomas Harte
cefc3af08b
Corrects RAM read decoding when the ROM overlay is enabled.
2019-05-05 22:48:40 -04:00
Thomas Harte
96facc103a
Adds an IWM shim and corrects graphics output.
...
... now that there is some.
2019-05-05 21:55:34 -04:00
Thomas Harte
407bbfb379
Pretending the Disk II is an IWM doesn't seem to achieve much.
2019-05-05 18:12:25 -04:00
Thomas Harte
a99ebda513
Takes a first shot at (inverted) Mac video output.
2019-05-04 22:27:58 -04:00
Thomas Harte
537b604fc9
It looks like writes should always go to RAM.
...
Now I see the screen buffer being filled with `0xffff`s, along with what is probably disk motor control data.
2019-05-04 17:29:30 -04:00
Thomas Harte
98bc570bf7
Adds further boilerplate around VIA and IWM decoding.
2019-05-04 17:12:26 -04:00
Thomas Harte
181b77c490
Adds decoding of IWM accesses and respect for the ROM overlay bit.
2019-05-04 16:38:01 -04:00
Thomas Harte
bc9eb82e6f
Adds in VIA access decoding, and a note to self on video.
...
The Mac now proceeds to try to talk to the IWM.
2019-05-04 14:23:37 -04:00
Thomas Harte
29fc024ecd
Starts negotiating the Macintosh memory map.
2019-05-04 12:33:27 -04:00
Thomas Harte
c1695d0910
Adds various notes to self.
2019-05-03 23:55:28 -04:00
Thomas Harte
6d6a4e79c9
Adds the absolute basics to include a 6522 in the Macintosh.
...
Not yet wired to anything.
2019-05-03 23:40:22 -04:00
Thomas Harte
68392ce6f5
Adds enough of a concept of Mac video to get a properly initialised display.
...
Completely empty at present, naturally. Also this is the very first time I've run my 68000 at live speed. From just one data point, it's not terrible. Phew!
2019-05-03 23:25:42 -04:00
Thomas Harte
6873f62ad8
Ensures that the Mac now retains its ROM properly.
2019-05-03 22:39:09 -04:00
Thomas Harte
5f385e15f6
Adds the bare bones necessary to be able to create a Macintosh from File -> New... .
2019-05-03 22:16:07 -04:00
Thomas Harte
8c5d37b6ee
Refactors the AppleII into a sub-namespace to make room for other Apple machines.
2019-05-03 18:14:10 -04:00