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4,149 Commits 9 Branches 118 Tags 496 MiB
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1333 Commits

Author SHA1 Message Date
Thomas Harte
3ea2a4ccb8 Moves the joystick class towards accepting analogue inputs. 2018-06-10 20:45:52 -04:00
Thomas Harte
69da00fcfb Modifies test slightly for usual RWTS16 location. 
Also eliminates messy print logging.
 2018-06-10 18:41:09 -04:00
Thomas Harte
d576ff1172 Exposes DOS 3.3 acceleration as an option. 
Albeit with an unhelpful label in the macOS GUI for now.
 2018-06-10 18:28:29 -04:00
Thomas Harte
af54666c23 Implements RWTS acceleration. 2018-06-10 17:58:16 -04:00
Thomas Harte
12c59ede09 Adds writeback of track location. 2018-06-09 20:34:12 -04:00
Thomas Harte
b4d0d4fff6 Starts building out some fast-loading infrastructure for DOS 3.3. 2018-06-09 17:29:14 -04:00
Thomas Harte
dde9b73a22 Creates the through-path that will be necessary for RWTS acceleration. 2018-06-09 12:51:53 -04:00
Thomas Harte
fb4bb21bf6 Ensures an objective copy of the bus address is kept, and forwarded to cards. 2018-06-08 20:12:15 -04:00
Thomas Harte
d380595ad4 Unrolls the loops for slightly fewer conditionals. 2018-06-03 07:27:03 -04:00
Thomas Harte
d84b8700a3 Switches the Apple II to one byte per pixel. 
Just trying to get it right for now; optimisation to come.
 2018-06-02 22:03:45 -04:00
Thomas Harte
80b281d9f1 Switches back to whole bytes per pixel, owing to persistent precision problems at 1bpp. 
Also fixes the inaccurately-named `cycles_since_update_`.
 2018-06-02 18:25:00 -04:00
Thomas Harte
69dc3cc4d8 Switches to using the same varying for byte and subpixel selection. 2018-06-01 22:52:29 -04:00
Thomas Harte
0833412df9 Corrects port for ZON-X reads. 2018-06-01 19:45:37 -04:00
Thomas Harte
35e84ff1a8 Corrects NTSC quadrature phase. 2018-05-31 21:40:46 -04:00
Thomas Harte
8dd7c6ef23 Eliminates 'reversed_c' as I no longer believe low-resolution colour numbers are reversed. 
Also gets explicit about phase.
 2018-05-29 22:30:45 -04:00
Thomas Harte
b2464598d0 Forces the Apple II bus handler call inline. 2018-05-28 18:21:01 -04:00
Thomas Harte
6812a001d8 Teaches the Oric to apply a lighter Disk II touch when possible. 2018-05-28 18:20:43 -04:00
Thomas Harte
928aab13dc Introduces more granular clocking announcements to the Disk II. 
As well as making it accept the clock rate it'll actually receive, to supply to the drives, so that they spin at the proper speed.
 2018-05-28 17:19:29 -04:00
Thomas Harte
f3fe711542 Attempts to reduce FDC costs. 2018-05-27 23:55:04 -04:00
Thomas Harte
db8d8d8404 Commutes Sleeper to ClockingHint::Source, making state more granular. 2018-05-27 23:17:06 -04:00
Thomas Harte
7c3dd55e5c Corrects typo and improves exposition. 2018-05-24 18:57:35 -04:00
Thomas Harte
1b43381be0 Corrects meaning of the Microdisc's paging control. 2018-05-24 18:53:02 -04:00
Thomas Harte
a4d7703efd Adds missing #include. 2018-05-23 22:28:00 -04:00
Thomas Harte
f9c25372c2 Ensures cards get messaged regardless of memory area. 2018-05-22 21:49:34 -04:00
Thomas Harte
ea92363e6c Attempts to get the Apple II to honour the AppleII::Card select constraints appropriately. 2018-05-22 20:34:59 -04:00
Thomas Harte
015f692bd3 The Disk II card now commutes Disk II sleep activity to select constraints. 2018-05-22 19:51:39 -04:00
Thomas Harte
80d34f5511 Specs out a new AppleII::Card interface. 
Doesn't yet fully implement it on the Apple II side though.
 2018-05-21 20:54:53 -04:00
Thomas Harte
e482929da8 Enhances the Disk II's ability to sleep. 
Also enables Disk II sleep observation in the Oric.
 2018-05-19 23:15:28 -04:00
Thomas Harte
7b7beb13a3 Eliminates the fiction of setting and getting registers. 
The Disk II seems lower level than that; it will read the data bus whenever it likes, it is the programmer's responsibility to keep up with that. It also reserves the right not to load the bus regardless of whether it receives a read or write access.
 2018-05-17 21:39:11 -04:00
Thomas Harte
b3f4d0ed8c Imposes a three-cycle penalty for SN76489 access. 
This is my reading of (i) the SN76489 data sheet; plus (ii) the ColecoVision schematic.
 2018-05-16 19:06:03 -04:00
Thomas Harte
7c2721d54d Adjusted number again. But we'll see. 2018-05-15 20:43:13 -04:00
Thomas Harte
8907d0a9a7 Adds a low-pass filter to the Apple II's audio. 2018-05-14 21:56:14 -04:00
Thomas Harte
5107c7c23d Ensures all keypresses are entered as upper case. 2018-05-13 22:40:28 -04:00
Thomas Harte
4dbd1f1358 Corrects Disk II ROM visibility. 2018-05-13 22:36:02 -04:00
Thomas Harte
dea9892a85 Attempts to implement vapour lock bus behaviour. 2018-05-13 18:53:32 -04:00
Thomas Harte
7226d8d4f7 Eliminates all instances of µ. 2018-05-13 15:46:14 -04:00
Thomas Harte
ad9b0cd4e3 Eliminates all endashes. 2018-05-13 15:43:03 -04:00
Thomas Harte
5d6b5d9f10 Eliminates all emdashes in cross-platform code. 2018-05-13 15:34:31 -04:00
Thomas Harte
0b771ce61a Removes all instances of the copyright symbol. 2018-05-13 15:19:52 -04:00
Thomas Harte
2252c29495 Switches the Oric to string insertion at the time of consumption. 
To avoid issues around keyboard scanning being decoupled from consumption via IRQ, but not buffered. Keys pressed while BASIC is otherwise busy are just lost.
 2018-05-13 14:02:46 -04:00
Thomas Harte
39c0bc6c47 Factors string serialisation with \n\r conversion out of the Apple II and reuses it with the Oric. 2018-05-13 13:57:19 -04:00
Thomas Harte
a6b8e88406 Implements type_string for the Apple II. 2018-05-13 11:30:04 -04:00
Thomas Harte
d0fd4dd4db The MSX is now an activity source. 
Completing the set.
 2018-05-12 17:32:53 -04:00
Thomas Harte
3ba6b6f1ee Makes the Oric an event source. 2018-05-11 23:05:36 -04:00
Thomas Harte
bc464e247f The 1540 and, by extension, the Vic-20 are now activity sources. 2018-05-11 22:24:33 -04:00
Thomas Harte
c23f6d8d19 Corrects type for array accesses. 2018-05-11 21:46:30 -04:00
Thomas Harte
39d779edf0 Makes CPC an activity source. 2018-05-11 21:45:46 -04:00
Thomas Harte
a43ca0db35 Makes the Apple II an activity source. 2018-05-10 22:17:13 -04:00
Thomas Harte
ef19a03efc Drives can now deliver activity events. 2018-05-10 21:54:10 -04:00
Thomas Harte
85e1610627 Merge branch 'master' into ActivityReceiver 2018-05-10 20:49:32 -04:00
Thomas Harte
d16ae84d0b Reduces number of Apple II video flushes, to reduce processing cost. 2018-05-10 20:48:57 -04:00
Thomas Harte
95f859cf5c Merge branch 'master' into ActivityReceiver 2018-05-10 20:26:50 -04:00
Thomas Harte
312171fa59 Pulls out a couple of repeating constants. 2018-05-09 20:28:25 -04:00
Thomas Harte
c3a2f7717b Makes attempt to implement support for the Pravetz 8D + 8DOS. 
i.e. the Disk II wired up to the Oric, with some ROM swaps.
 2018-05-08 22:05:43 -04:00
Thomas Harte
70e6c3b2f6 Introduces the ActivityObserver protocol for LEDs, drive events, etc. 
The Electron's caps lock LED is the test case.
 2018-05-07 21:57:54 -04:00
Thomas Harte
f65c65569a Makes disk head position explicitly something with sub-integral precision. 
Also as a drive-by fix, corrects accidental assumption of 10 sectors for all MFMSectorDump descendants.
 2018-05-06 23:17:36 -04:00
Thomas Harte
d613c3c187 Adds an implementation of the language card. 2018-05-06 16:17:11 -04:00
Thomas Harte
4c4ab25d0e Attempts to rationalise Apple II address decoding. 2018-05-05 20:24:03 -04:00
Thomas Harte
723ee88043 Introduces configuration options for the Apple II. 
Specifically: II or II+? Disk II 13- or 16-sector? Or not at all?
 2018-05-03 19:37:32 -04:00
Thomas Harte
eecea93b3b Simplifies the test for resetting the ZX80/81 line counter. 2018-05-01 21:31:37 -04:00
Thomas Harte
f4097290c2 Made various corrections following a quick for-loop constness audit. 2018-04-30 22:23:57 -04:00
Thomas Harte
265bc80d44 Attempts to introduce sleeping to the Disk II. 2018-04-29 17:52:29 -04:00
Thomas Harte
10c0e687f5 Attempts to introduce sleeping for the Disk II. 2018-04-29 17:51:10 -04:00
Thomas Harte
850a394eb5 Corrects graphics 'carry' — the potential holdover into delayed bytes. 2018-04-26 19:26:43 -04:00
Thomas Harte
244721a6f8 Corrects graphics mode address generation. 2018-04-25 22:26:01 -04:00
Thomas Harte
b4f6dee954 Ensures the contextually-proper boot and state machine ROMs are requested. 2018-04-24 20:25:02 -07:00
Thomas Harte
2685e9087e Changes the default-assigned Disk II card slot from 7 to 6. 2018-04-24 20:24:44 -07:00
Thomas Harte
7061537ff5 Makes joined-up attempt to run data through the Disk II. 2018-04-24 19:44:45 -07:00
Thomas Harte
2f2390b5aa Adds F12 as a reset key, triggers cards upon a flush. 2018-04-24 09:03:30 -07:00
Thomas Harte
af61bbc3e2 Attempts actual performance of the state machine. 2018-04-24 08:29:05 -07:00
Thomas Harte
56d88f23ef Teeters closer and closer to trying actually to run the Disk II state machine. 2018-04-23 22:29:36 -07:00
Thomas Harte
4bff44377a Attempts to route Disk II requests to the thing itself. 2018-04-23 22:11:31 -07:00
Thomas Harte
7463edaa1b Attempts to bring card support to the Apple II, and adds a 'has disk' flag. 2018-04-23 21:14:45 -07:00
Thomas Harte
e92e06a5f4 Doubled down on the ROMMachine::ROMFetcher typedef. 2018-04-23 20:20:14 -07:00
Thomas Harte
6592745e53 Adds the bare minimum to respond to attempts to open NIB files with an Apple II. 2018-04-21 21:21:57 -07:00
Thomas Harte
5968c9a391 Corrects Apple II output audio. 2018-04-21 14:56:50 -07:00
Thomas Harte
aebe8a64a2 Removes empty printf. 2018-04-20 10:58:23 -04:00
Thomas Harte
b8ae283049 Implements correct text inverse/flashing. 2018-04-19 22:14:22 -04:00
Thomas Harte
e03a403a51 Adds exposition. 2018-04-19 20:41:09 -04:00
Thomas Harte
ba43b3e6b8 Reverses bit order of graphics stream; apparently the ROM is backwards. 2018-04-19 20:39:38 -04:00
Thomas Harte
b4a2d1395c Ensures left and right cursor keys work. 2018-04-18 22:23:31 -04:00
Thomas Harte
f5ae8d0f79 Attempts to be more rigorous about clock rates. 2018-04-18 21:52:22 -04:00
Thomas Harte
5f1c210746 Simplifies and corrects low-resolution colour generation. 
Possibly disproving the premise for this whole experiment, all colours seem immediately to work correctly. Hmmm.
 2018-04-18 21:41:11 -04:00
Thomas Harte
f6c2f6e896 Slightly adjusts colour burst logic to fix transition lines in mixed mode. 2018-04-18 20:39:12 -04:00
Thomas Harte
6547560e52 Gives the CRT the ability to move iCoordinate multiplication outside of the fragment loop. 
That resolves precision issues, as were plaguing the Apple II.
 2018-04-18 19:29:03 -04:00
Thomas Harte
a167e3849b Allows multiple ROMs to be inserted into the Electron. 2018-04-18 18:13:30 -04:00
Thomas Harte
f22c23cb4c Attempts to bring audio to the Apple II. 
By factoring the audio toggle out from the MSX.
 2018-04-17 22:28:13 -04:00
Thomas Harte
a07c99d778 Completes first draft of Apple II video hardware. 2018-04-17 22:04:02 -04:00
Thomas Harte
1c605d58e3 Removes the CRT requirement for an integral relationship between cycles and samples. 2018-04-16 20:00:56 -04:00
Thomas Harte
6a79ce9eb1 Adds enough to the Apple II's video that I can see what's going on with soft switches. 2018-04-15 21:55:26 -04:00
Thomas Harte
465c38f03c Extends the keyboard protocol and adds keyboard input to the Apple II. 2018-04-15 21:11:30 -04:00
Thomas Harte
be05d51e07 Now gives something a lot like the proper character output. 2018-04-15 20:31:04 -04:00
Thomas Harte
9bc470027e Put enough in place to get a visual representation of video memory. 
Not the correct one, and so as to indicate that the machine isn't booting, surprisingly.
 2018-04-15 19:35:08 -04:00
Thomas Harte
335c633884 Retrenches temporarily to full 8bpp output; introduces extra half a colour cycle of pause. 2018-04-15 18:54:05 -04:00
Thomas Harte
cd26f11818 Fixes documentation misstatement. 2018-04-15 18:00:51 -04:00
Thomas Harte
abe47b6ed8 Makes first attempt at a stable display area. Not entirely successful. 2018-04-15 18:00:40 -04:00
Thomas Harte
61659faeaa Adds the necessary call-outs to allow implementation of video generation. 2018-04-15 15:13:07 -04:00
Thomas Harte
71adb964e5 The Apple II now has a functioning processor, ROM and RAM. 2018-04-14 21:41:26 -04:00
Thomas Harte
e599e65087 Switches to use of the TargetList typedef wherever possible. 2018-04-14 19:46:38 -04:00
Thomas Harte
7efee9b52b Does the bare minimum to create a class skeleton for Apple II implementation. 2018-04-14 19:46:15 -04:00
Thomas Harte
079dc671e1 Rationalises per-machine static analyser call pattern, and adds Apple II as an option. 2018-04-14 12:12:12 -04:00
Thomas Harte
15f7cbe8c1 Corrects capitalisation. 2018-04-11 22:06:50 -04:00
Thomas Harte
428b6145fa Converts 6560 to more project normative templated form. 2018-04-11 22:00:42 -04:00
Thomas Harte
3ad0b31db8 Limits regions accessible to the 6560 to those built into the machine. 2018-04-11 21:35:23 -04:00
Thomas Harte
94b1c37fb2 Slightly simplifies bus decoding. 2018-04-08 18:51:37 -04:00
Thomas Harte
b20cbcd5fe Causes the Vic-20 to obey its own has_c1540 flag. 2018-04-08 17:35:02 -04:00
Thomas Harte
865c47a1ac Names the magic constants. 2018-04-08 10:35:07 -04:00
Thomas Harte
3821679efd Switches to bit unpacking on the GPU. 2018-04-07 22:17:47 -04:00
Thomas Harte
10f637d2cf Enhances the CompoundSource so that constituents can have different volumes. 2018-04-07 14:30:02 -04:00
Thomas Harte
36e0cb29c0 Ensures proper propagation of video choice through the Oric. 2018-04-04 19:14:42 -04:00
Thomas Harte
c0b4dd65da Mades the expected video signal usage explicit. 2018-04-04 19:01:18 -04:00
Thomas Harte
69f520428d Makes a first, ugly attempt at a 'new machine' dialogue for the Mac. 
Which has implied getting much more specific about MSX disk drive attachment, and has prompted an excuse to offer the ZX80 with the ZX81 ROM.
 2018-04-02 22:42:41 -04:00
Thomas Harte
33084899d0 Provides s-video as a command-line option. 2018-03-31 22:14:34 -04:00
Thomas Harte
8b45377b89 Simplifies storage underlying Vic memory. 
In the hope of avoiding non-obvious bugs.
 2018-03-31 18:54:40 -04:00
Thomas Harte
f6fb368d88 Allows the fast-tape mechanism to take ownership of tape handling. 
Any successful fast tape interaction will now permanently pause the tape until a failed interaction occurs. This may or may not be a good idea.
 2018-03-30 21:22:52 -04:00
Thomas Harte
912791d3d4 Causes the s-video path correctly to function. 2018-03-30 18:24:18 -04:00
Thomas Harte
163a61dd63 Corrects SVideo-as-composite output; the Atari and Vic-20 now both supply svideo. 2018-03-30 13:16:18 -04:00
Thomas Harte
33281b9d89 Introduces S-Video as a video signal type at the interface level. 2018-03-30 10:25:41 -04:00
Thomas Harte
286259c83b Adds missing 6560 update hooks. 2018-03-29 20:49:36 -04:00
Thomas Harte
ec353ce663 Makes minor Vic-20 optimisations. 
Specifically: the 6560 is updated only upon writes (more nuance can arrive), and tape sleeps are observed.
 2018-03-27 21:52:52 -04:00
Thomas Harte
6d464557a0 Reintroduces a warm-up run for the C1540. 
That simulates the normal real-life scenario of switching the drive on slightly before the computer, and causes it to function correctly from immediate fast typing on an American Vic.

Also switches a couple of casts within the C1540 to functional style.
 2018-03-26 21:06:07 -04:00
Thomas Harte
a2da51c30b Commutes Vic-20 machine configuration options to its Target. 2018-03-26 19:01:57 -04:00
Thomas Harte
e15d6717a1 Strips back Vic-20 static analysis to the bare minimum. 
Also corrects an unsafe assumption in fast loading.
 2018-03-25 13:37:33 -04:00
Thomas Harte
7fcd243be0 Ensures the rom fetcher is properly recorded for potential provision to the C1540. 2018-03-23 18:20:17 -04:00
Thomas Harte
a301964bd0 Ensures all audio queues are fully merged before machine destruction. 
Thereby avoids a race condition.
 2018-03-22 21:59:19 -04:00
Thomas Harte
2712702461 Makes get_clock_rate protected. It's now an implementation detail. 2018-03-22 10:01:18 -04:00
Thomas Harte
da3d65c18f Devolves time to cycle conversion to machines. 
Thereby avoids a whole bunch of complicated machinations that would otherwise have been required of the multimachine.
 2018-03-21 22:18:13 -04:00
Thomas Harte
89bec2919f Encapsulates machine configuration properties for all remaining platforms. 2018-03-09 16:07:29 -05:00
Thomas Harte
78eaecb29e Provides the proper framework for encapsulation of analyser target specifics. 
... while making them a safe container for objects too. Uses the ZX80/81 as the pilot platform.
 2018-03-09 15:36:11 -05:00
Thomas Harte
6b1eef572b Eliminates diamond inheritance of KeyboardMachine::Machine by typers. 
Specifically by pulling the key action stuff into a purely abstract class [/interface]. Takes the opportunity to unpublish a bunch of machine details.
 2018-03-09 15:19:02 -05:00
Thomas Harte
48737a32a7 Introduces formal setting of the output volume to SampleSource. 
Previously every output device was making its own decision. Which is increasingly less sustainable due to the CompoundSource.
 2018-03-09 13:23:18 -05:00
Thomas Harte
03501df9e5
Merge pull request #365 from TomHarte/CartridgeDetermination 
Works towards eliminating the special cases for Atari 2600 ROM handling.
 2018-03-08 18:40:58 -05:00
Thomas Harte
1804ea6849 Ensures the ColecoVision and MSX account for instruction lengths in advance when timing secondary components. 2018-03-07 17:00:18 -05:00
Thomas Harte
c8657e08f4 Merge remote-tracking branch 'origin/master' into CartridgeDetermination 2018-03-07 16:42:16 -05:00
Thomas Harte
9abc020818 Corrects potential ColecoVision SGM AY timing issues. 2018-03-07 16:16:58 -05:00
Thomas Harte
2dade8d353 Introduces ZonX emulation for the ZX81. 2018-03-07 16:16:29 -05:00
Thomas Harte
1100dc6993 Opens up .bin and .rom to all cartridge platforms, and adds a confidence estimate to the Atari 2600. 2018-03-07 14:26:07 -05:00
Thomas Harte
2452641844 Introduces a fast workaround to avert a MultiMachine where it would instantly end. 2018-03-06 19:08:02 -05:00
Thomas Harte
c82af4b814 Introduces get_confidence for the ColecoVision. 
Based almost entirely on joypad accesses for now.
 2018-03-06 19:06:35 -05:00
Thomas Harte
3c5a8d9ff3 Adds Super Game Module support for the ColecoVision. 2018-03-03 13:08:33 -05:00
Thomas Harte
bdfc36427c Implements MegaCart support. 2018-03-02 18:40:01 -05:00
Thomas Harte
59b4c7314d Merge branch 'master' into ColecoVision 2018-03-01 22:01:26 -05:00
Thomas Harte
b05d2b26bf Corrects a counting error in the MSX. 2018-03-01 21:59:51 -05:00
Thomas Harte
86239469e7 Allows SN76489 consumers to apply an additional divider that reduces computation. 2018-03-01 18:51:05 -05:00
Thomas Harte
7890506b16 Gives the SN76489 its proper dividers and personalities. 2018-02-28 22:36:03 -05:00
Thomas Harte
87760297fc Fixes underpumping of SN76489. 
Audio works now. Though I still need properly to confirm who owns dividers in practice. I think probably all division should be within the SN.
 2018-02-27 22:59:29 -05:00
Thomas Harte
d4df101ab6 Makes a first attempt at implementing the SN76489. 2018-02-27 22:25:12 -05:00
Thomas Harte
0ad2676640 Adds a class for the SN76489 and wires it into the ColecoVision. 2018-02-26 22:04:34 -05:00
Thomas Harte
a074ee2071 Possibly fixes ColecoVision input mapping. 
Also provides symbolic input from the Mac.
 2018-02-25 22:47:47 -05:00
Thomas Harte
204d5cc964 Extends JoystickMachine protocol to cover ColecoVision use case. 
Also thereby implements input on the ColecoVision, in theory at least. No input is being fed though, so...
 2018-02-25 19:08:50 -05:00