183 Commits

Author	SHA1	Message	Date
Thomas Harte	a555c5762a	Rearranged code, hopefully into a more logical grouping.	2016-12-15 19:47:04 -05:00
Thomas Harte	f61176cd7d	Reinstituted something of the don't-do-pixel-work-until-an-affecting-write-occurs optimisation.	2016-12-15 19:20:14 -05:00
Thomas Harte	fd541e1142	An early draft; dealing with the issue that not all cycles are necessarily consumed in a single call. Incomplete; broken. Committing for cross-machine visibility.	2016-12-12 08:01:10 -05:00
Thomas Harte	be7e05e109	Started attempting to move total responsibility for display-related interrupts and RAM timing into the video.	2016-12-11 18:34:49 -05:00
Thomas Harte	c5cf8d9531	Ensured the video subsystem correctly handles requests to run over a frame boundary.	2016-12-11 16:17:51 -05:00
Thomas Harte	c43e481a33	Started factoring video out of the Electron.	2016-12-10 21:07:52 -05:00
Thomas Harte	a549fd1ecc	Introduced the ability simply to piggy-back off the CRT's natural phase for the colour burst, thereby eliminating a couple of redundant independent attempts in the Oric and Electron.	2016-12-10 13:42:34 -05:00
Thomas Harte	eb3a1fbfb7	Commuted remaining Electron underscores. It would be nice also to factor out the video, but the time hasn't come yet.	2016-12-03 13:01:01 -05:00
Thomas Harte	4fac538a57	Factored out the Electron's speaker and adjusted instance variable naming.	2016-12-03 12:41:02 -05:00
Thomas Harte	d1d93829cf	Factored out the Tape and switched it to postfix underscores.	2016-12-03 12:18:08 -05:00
Thomas Harte	2003b514aa	Switched the typer to postfix underscores.	2016-12-03 10:55:50 -05:00
Thomas Harte	311f8c0b47	Restored audio.	2016-11-16 11:10:07 +08:00
Thomas Harte	338904fffe	Made similar cleanings of the Electron and Vic.	2016-11-05 15:07:57 -04:00
Thomas Harte	9fb9d92437	Made the typer much more able to help out, and thereby tidied and separated the Oric's typer.	2016-11-05 14:47:09 -04:00
Thomas Harte	7843a244b0	Ensured emulation doesn't enter an infinite loop if the user attempts to read beyond the end of a tape.	2016-10-28 22:23:25 -04:00
Thomas Harte	de658b70d7	That's thread safety, subject to the async task queue being made to work...	2016-10-07 17:02:36 -04:00
Thomas Harte	2d26feb073	Added mappings for the previously-missing characters @, [ and ].	2016-10-04 22:03:53 -04:00
Thomas Harte	f9ee6803df	It's likely this should be set at startup too, based on latest info.	2016-10-03 22:16:10 -04:00
Thomas Harte	97304e22f0	Adjusted per tests on StarDot; it appears the tape interrupts may fire during audio output, as if in tape output mode.	2016-10-03 20:03:14 -04:00
Thomas Harte	dae6b45464	Ensured the always-on bit of the interrupt status register is indeed on.	2016-10-03 19:15:31 -04:00
Thomas Harte	79412dc84d	Upped MFM clock cycles, switched back to using the typer for the ADFS and adjusted ADFS ROM slots.	2016-09-28 21:28:34 -04:00
Thomas Harte	4db086949a	Made an attempt to add MFM decoding to the 1770; ensured something is returned when reading the Plus 3 status register again.	2016-09-25 21:38:52 -04:00
Thomas Harte	572d5587d9	Made a first stab at enabling multi-disk machines and thereby obeying (some of) the Plus 3's status register.	2016-09-25 21:24:16 -04:00
Thomas Harte	9bbcbd1001	Renamed class, intending to turn a Disk::Drive into literally just that, and have a thing with a PLL that consumes events be a Controller.	2016-09-25 20:05:56 -04:00
Thomas Harte	7f4c78139c	Attempted to ensure that ADFS disks get to an appropriately-configured Electron. Not immediately sure why the shift press isn't working; doesn't need to be dealt with immediately.	2016-09-25 19:59:46 -04:00
Thomas Harte	6084020ab3	Added shift-break as a better way to boot suitable disks. Continued attempting to clean the 1770.	2016-09-25 14:11:22 -04:00
Thomas Harte	ce4100e5b9	Fixed slots for DFS and ADFS to sideways RAM; continued working on the 1770 to get as far as trying to get the body of a sector.	2016-09-24 22:04:54 -04:00
Thomas Harte	8db0030068	Fixed ROM loading by the Electron, turned the WD1770 into a 'disk drive' (it'll do for now), persuaded it to get all the way through a very specifically convenient type 1 command.	2016-09-20 22:14:33 -04:00
Thomas Harte	3b97b038b9	Corrected and sketched out state machine far enough to get to a complaint about unhandled work.	2016-09-20 15:56:31 -04:00
Thomas Harte	e358057440	Added a WD1770 run_for_cycles call. So I really can now move that as far as reporting that it has no disk?	2016-09-20 07:42:17 -04:00
Thomas Harte	cd5939501f	Treading water some more, ensured the DFS and ADFS ROMs get to the Electron. It now even inserts the DFS ROM if it has a DFS disk image. Might need to make it a sideways RAM though? Regardless, the next job surely — surely! — has to be to stop avoiding the 1770?	2016-09-20 07:36:57 -04:00
Thomas Harte	a9e65e9b7a	Tweaked disk side density, added call-outs to a WD1770 if the Electron had one (albeit without run_for_cycles yet as I need to figure out the clock rate), added a shell of the basic functions of the WD1770. No implementation yet.	2016-09-19 22:06:56 -04:00
Thomas Harte	21e5f407d8	I need to get a bit more definitive on naming but this gets all the way to setting a configuration upon an Electron.	2016-08-31 22:03:42 -04:00
Thomas Harte	c0402d0c2b	Gave tapes their own namespace.	2016-08-27 17:09:45 -04:00
Thomas Harte	d9016909ed	Added some wiring for PAL/NTSC mode switching on the Vic, making an attempt to simplify the whole loop of having different clock rates.	2016-08-14 13:33:20 -04:00
Thomas Harte	5d40d70c92	Fixed 6560 addressing error, added an autotyper for Vic disks (more work potentially needed), fixed semantics for testing whether a 6502 is about to reset.	2016-08-01 10:32:32 -04:00
Thomas Harte	2332f72875	Formalised clock-rate multiplication within disk drives, discovered that the stepper didn't have ideal behaviour for my timed event loop and hence nailed down the semantics a ilttle more. ... (obiter: the 1540 now appears to discern the correct sequence of bits. Framing is off in my test printfs but that's neither here nor there).	2016-07-31 13:32:30 -04:00
Thomas Harte	88964ceac0	Eliminated plain pointer passing for object types.	2016-07-04 19:33:55 -04:00
Thomas Harte	0182b0483a	Added a 'power on' flag that is set automatically at construction but can be declined. Saves all that stuff of every machine having to set and then unset the RST line, and fixes an Electron bug related to that.	2016-06-29 19:13:24 -04:00
Thomas Harte	37ba42a52f	Factored out the stuff of playing a tape, started basic sketch of the Vic-related classes.	2016-06-26 19:03:57 -04:00
Thomas Harte	2bd71e7e9b	.reset is the more normal way to reassign a unique_ptr.	2016-06-23 20:52:44 -04:00
Thomas Harte	b6dd38dad3	Corrected type safety warning.	2016-06-19 21:41:01 -04:00
Thomas Harte	6dd8ea67c9	Tested and trimmed delay on typing if resetting.	2016-06-19 17:27:23 -04:00
Thomas Harte	05cb47709e	Implemented Utility::Typer for the Electron. So that now also receives pastes.	2016-06-19 17:25:35 -04:00
Thomas Harte	5c4f35e13f	Finally started on generalising the C++ stuff so as to be able to be able to get a working audio binding on the OS-specific side without further repetition by factoring an appropriate protocol out from the Electron and sketching out the correct speaker class for the Atari. Added a method to ask it what a good output frequency would be.	2016-05-31 21:23:44 -04:00
Thomas Harte	5a4262d74e	Confirmed: it is inaccurate for a 6502 to self reset at power up. So that responsibility now rests in the machines.	2016-05-10 21:05:52 -04:00
Thomas Harte	bf9917707e	Merge branch 'master' into Glitches	2016-05-05 08:31:40 -04:00
Thomas Harte	fea32869b0	Implemented what I now believe to be the real paging logic.	2016-05-05 08:28:06 -04:00
Thomas Harte	87df57195d	Started on an attempt not to treat the various buffers as free to loop within, starting with the input texture.	2016-05-04 07:39:45 -04:00
Thomas Harte	9b64f64db7	Attempted to normalise some style decisions.`	2016-04-24 22:32:24 -04:00