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
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
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
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
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
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