Thomas Harte
f0478225f0
Adjusts logic to reduce number of output spans.
2019-11-12 19:30:28 -05:00
Thomas Harte
c6f6bc68e1
Undoes non-insertion of media.
2019-11-10 21:52:06 -05:00
Thomas Harte
ab34fad8ca
Introduces a cleaner, separated shifter.
2019-11-10 21:39:40 -05:00
Thomas Harte
7ae0902103
Adds additional joystick commands to the dispatcher.
2019-11-09 20:10:54 -05:00
Thomas Harte
8e9428623e
Adds joystick events to the Atari ST.
2019-11-09 18:39:22 -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
0204003680
Resolves GCC warnings.
2019-11-09 16:12:37 -05:00
Thomas Harte
77ef7dc8fc
Shuffles ST and 2600 into a common parent.
2019-11-09 15:31:41 -05:00
Thomas Harte
e3abbc9966
Renames what didn't end up being a whole SerialPort.
2019-11-09 15:21:51 -05:00
Thomas Harte
70c6010fe0
Expands visible area and adds a few more safety barriers.
2019-11-09 15:00:42 -05:00
Thomas Harte
45375fb5d0
Makes endian aware.
2019-11-09 09:48:59 -05:00
Thomas Harte
d2324e413d
Clarifies ownership of bpp-has-changed test.
2019-11-09 00:10:59 -05:00
Thomas Harte
e0c15f43bb
Avoids massive over-flushing of pixel buffers.
2019-11-09 00:05:02 -05:00
Thomas Harte
8b0d550b81
Attempts to move vertical sync out to cycle 30.
2019-11-08 22:18:47 -05:00
Thomas Harte
d1259f829e
Moves vertical state decisions back to cycle 502.
2019-11-08 21:42:05 -05:00
Thomas Harte
7caef46c05
Switches back to hsync for interrupts; corrects current address reads.
2019-11-08 21:25:28 -05:00
Thomas Harte
6902251d8b
Fixed: returns video address in bytes, not words.
2019-11-08 20:47:08 -05:00
Thomas Harte
0b683b0360
Adds some sanity checks.
2019-11-08 20:46:24 -05:00
Thomas Harte
5d5dc79f2c
Corrects raster race condition with CPU.
2019-11-07 23:27:05 -05:00
Thomas Harte
b7c407be10
The palette is meant to be read/write.
2019-11-07 23:11:06 -05:00
Thomas Harte
f45798faf0
Corrects initial safe value of line_length_.
2019-11-07 22:53:26 -05:00
Thomas Harte
7c66d7a13c
Corrects sync and line-length latch timings.
2019-11-07 22:53:04 -05:00
Thomas Harte
5e1570258d
I think the horizontal interrupt is blank, not sync.
2019-11-07 22:00:50 -05:00
Thomas Harte
fc8021c0b0
Adds a centre crop.
2019-11-07 20:02:45 -05:00
Thomas Harte
c9cd56915e
Corrects typo that was adding an extra line of PAL video.
2019-11-07 19:55:49 -05:00
Thomas Harte
1fd19c5786
Attempts to add proper bus timing.
2019-11-07 19:55:00 -05:00
Thomas Harte
ce66b5fd9c
Corrected member variable names.
2019-11-07 19:44:22 -05:00
Thomas Harte
8aa425c9d8
Fixes medium resolution mode.
2019-11-06 23:25:36 -05:00
Thomas Harte
ec68bc5047
Corrects output glitches: channel de sync and improper border beginnings.
2019-11-06 22:37:05 -05:00
Thomas Harte
0ce807805d
Eliminates most masks, at least for now.
2019-11-05 23:17:59 -05:00
Thomas Harte
41f3c29e30
Attempts to switch to correct video state machine.
...
Some glitches remain to be ironed out.
2019-11-05 23:02:25 -05:00
Thomas Harte
8df1eea955
Goes big on flushing.
2019-11-03 23:03:50 -05:00
Thomas Harte
eeafdf2c03
Slightly expands list of recognised Intelligent Keyboard commands.
2019-11-03 21:58:15 -05:00
Thomas Harte
befe2c2929
Adds floppy drive activity indicators.
2019-11-03 21:57:54 -05:00
Thomas Harte
e9965c2738
Obeys stated memory size.
2019-11-03 21:18:17 -05:00
Thomas Harte
48b0d8c329
Adds bus req/ack to the DMA controller; hacks support into the ST.
2019-11-03 21:11:25 -05:00
Thomas Harte
4dbd2a805a
Nudges closer to DMA support.
2019-11-03 17:24:36 -05:00
Thomas Harte
20bf425f98
Drive select lines are active low.
2019-11-02 23:37:56 -04:00
Thomas Harte
0567410bcf
Attempts to start getting the WDC working.
2019-11-02 23:26:42 -04:00
Thomas Harte
6d1e09ba55
Connects up the AY to floppy drive/side selection.
2019-11-02 23:04:08 -04:00
Thomas Harte
f40dbefa67
Implements most of keyboard input.
2019-11-02 22:30:02 -04:00
Thomas Harte
f93cdd21de
Reverses bit order.
...
So, for the first time: a green desktop.
2019-11-02 21:53:04 -04:00
Thomas Harte
e1dc3b1915
Reverses mouse buttons.
...
So I can now navigate the disk-less GEM desktop and click on things.
2019-11-02 21:38:57 -04:00
Thomas Harte
cbf25a16dc
Adds relative mouse motion input.
2019-11-02 21:25:45 -04:00
Thomas Harte
bf7e9cfd62
Pulls the intelligent keyboard into its own file.
2019-11-02 19:47:44 -04:00
Thomas Harte
a67e0014a4
Fixes video base address and mono/colour monitor value.
...
Now I see a GEM desktop. In blue.
2019-11-02 19:36:15 -04:00
Thomas Harte
c070f2100c
Attempts to regularise data bus access.
2019-11-01 23:01:06 -04:00
Thomas Harte
75e34b4215
Reacts to no acknowledgement.
2019-10-31 21:00:05 -04:00
Thomas Harte
731dc350b4
Adds sometime real-time clocking for DMA.
2019-10-30 22:59:32 -04:00
Thomas Harte
635e18a50d
Ensures the MFP requests and receives real-time clocking when needed.
2019-10-30 22:42:06 -04:00
Thomas Harte
1c154131f9
Expands size of storage in Cycles/HalfCycles; adjusts widely to compensate.
2019-10-29 22:36:29 -04:00
Thomas Harte
1135576a3a
Comments in slightly more detail.
2019-10-28 22:12:56 -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
0f2d72c436
Ensures receipt of output line changes.
2019-10-28 21:21:53 -04:00
Thomas Harte
4a1fa8fc13
Adds some const qualifiers.
2019-10-28 21:13:42 -04:00
Thomas Harte
95d3b6e79f
Adds a through route for the FDC interrupt line.
2019-10-28 21:13:21 -04:00
Thomas Harte
d44734d105
Attempts a fuller setting of GPIP inputs.
2019-10-27 22:39:21 -04:00
Thomas Harte
1aaa6331a0
Stores and returns video mode.
2019-10-27 22:39:00 -04:00
Thomas Harte
0cb19421e8
Adds prefix to mouse position response.
2019-10-27 21:46:03 -04:00
Thomas Harte
92847037b3
Merge branch 'master' into AtariST
2019-10-27 21:40:51 -04:00
Thomas Harte
0fc191c87d
Switched a few static_cast
to constructor syntax.
2019-10-27 14:21:22 -04:00
Thomas Harte
dc4a0e4e3b
Video only ever reads from RAM, so it can be const *.
...
(it can also be *const, since I set it only once)
2019-10-27 14:09:38 -04:00
Thomas Harte
36a9a5288b
Adds drives to the FDC.
2019-10-26 22:39:11 -04:00
Thomas Harte
ac39fd0235
Starts work on the DMA controller.
2019-10-26 21:33:57 -04:00
Thomas Harte
ecc0cea5a1
Added a potential branch for the newer TOS memory map.
2019-10-26 16:52:06 -04:00
Thomas Harte
eae11cbf17
Adds a dummy response for mouse interrogation.
2019-10-26 16:14:24 -04:00
Thomas Harte
2207638287
Adds hsync and vsync interrupts.
2019-10-25 22:42:13 -04:00
Thomas Harte
872897029e
Attempts a complete wiring of 68901 interrupts.
2019-10-25 22:36:01 -04:00
Thomas Harte
51b4b5551d
Actually, I think the 6850 is active low for interrupts.
2019-10-24 22:37:53 -04:00
Thomas Harte
092a61f93e
Does a better job of having just 512kb.
2019-10-21 23:10:30 -04:00
Thomas Harte
e30ba58e0d
Attempts to wire ACIA interrupt signals into the MFP.
2019-10-21 23:02:30 -04:00
Thomas Harte
83d73fb088
The keyboard now responds to a reset on its serial line.
2019-10-20 23:13:44 -04:00
Thomas Harte
75c3e2dacd
Adds basic, incomplete dispatcher for the intelligent keyboard.
2019-10-20 23:07:19 -04:00
Thomas Harte
cf07982a9b
Ensures good serial line and ACIA behaviour.
...
Next stop: having the intelligent keyboard react.
2019-10-20 22:10:05 -04:00
Thomas Harte
313aaa8f95
Silences temporarily.
2019-10-20 20:38:56 -04:00
Thomas Harte
696af5c3a6
Starts to transfer serial line decoding logic into the line itself.
2019-10-20 20:38:56 -04:00
Thomas Harte
9a8352282d
Mostly but not quite fixes serial work.
2019-10-20 20:38:55 -04:00
Thomas Harte
34075a7674
Attempts to tie an intelligent keyboard to the other end of its serial line.
2019-10-20 20:38:55 -04:00
Thomas Harte
ff62eb6dce
The ACIA actually has two clocks, though on an ST they're both 500,000 Hz.
2019-10-20 20:38:55 -04:00
Thomas Harte
374439693e
Ensures serial lines know their writer's clock rate.
2019-10-20 20:38:55 -04:00
Thomas Harte
c4ef33b23f
JustInTimeActors can now specify a clock divider.
2019-10-20 20:38:55 -04:00
Thomas Harte
4e5b440145
Attempts mostly to implement 6850 output.
2019-10-20 20:38:55 -04:00
Thomas Harte
97d44129cb
Ensures all 16 data lines reach the video.
2019-10-20 20:38:55 -04:00
Thomas Harte
b0f5f7bd37
Attempts to start producing actual video.
2019-10-20 20:38:55 -04:00
Thomas Harte
a59ec9e818
Provides a token something where DMA should be.
2019-10-20 20:38:55 -04:00
Thomas Harte
4ead905c3c
Adds an empty shell for the ACIA.
2019-10-20 20:38:55 -04:00
Thomas Harte
127bb043e7
Adds enough logic to advance to an ACIA access error.
2019-10-20 20:38:55 -04:00
Thomas Harte
42ebe06474
Makes an attempt at tracking video sequence points.
2019-10-20 20:38:55 -04:00
Thomas Harte
74fe32da23
Takes a shot at other display outputs.
2019-10-20 20:38:55 -04:00
Thomas Harte
780916551f
Corrects sync generation.
2019-10-20 20:38:54 -04:00
Thomas Harte
305b1211ba
Makes a first attempt to box out the ST display area.
2019-10-20 20:38:54 -04:00
Thomas Harte
2cf52fb89c
Makes an unsuccessful first attempt at some timer functionality.
2019-10-20 20:38:54 -04:00
Thomas Harte
6e1b606adf
Adds a target for MFP read/write operations.
...
Completely without any implementation, so far.
2019-10-20 20:38:54 -04:00
Thomas Harte
3bb0bf9e14
Adds some semblance of an AY.
2019-10-20 20:38:54 -04:00
Thomas Harte
87a6d22894
Starts to formalise the ST memory map a little.
2019-10-20 20:38:54 -04:00
Thomas Harte
484a0ceeb8
Starts forming an Atari ST memory map.
2019-10-20 20:38:54 -04:00
Thomas Harte
da1436abd2
Gifts the Atari ST a 68000 and non-functional video.
2019-10-20 20:38:54 -04:00
Thomas Harte
125f781ced
Starts to create an actual shell of a machine.
2019-10-20 20:38:54 -04:00
Thomas Harte
8b397626bf
Adds a route through the static analyser to the Atari ST.
2019-10-20 20:38:54 -04:00
Thomas Harte
0da1881a07
Adds an Atari ST enumeration and factory method.
2019-10-20 20:38:54 -04:00
Thomas Harte
95c45b5515
This can be const.
2019-10-20 17:22:56 -04:00
Thomas Harte
735586f5f8
Corrects tabs; adds potential output_border optimisation.
2019-10-19 21:20:34 -04:00
Thomas Harte
3c146a3fb2
Adds missing Master System enumerations.
2019-09-30 21:10:30 -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
f3dd4b028d
Rolls out JustInTime acting to the MSX and ColecoVision.
2019-07-29 21:22:31 -04:00
Thomas Harte
9859f99513
Adds a route to not bumping time.
2019-07-29 17:21:27 -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