323 Commits

Author	SHA1	Message	Date
Thomas Harte	0032ad2634	Edging ever onwards; killed forced attempt at uniformity in targets, sketched out the interface for a next-file-from call to Acorn tapes.	2016-08-29 21:10:38 -04:00
Thomas Harte	d1abfc040c	Addressed my dithering here: the file format containers themselves should do nothing but inspect the data to find out whether it is of the correct format. The machine steps are there for machine-specific validation. So it's probably easier to treat a binary ROM image just as a binary ROM image. Therefore, the Acorn-specific .rom detection is now in an Acorn-specific area.	2016-08-29 08:48:49 -04:00
Thomas Harte	29c972f4b8	Added hacky segue into analysis for all Electron formats. Added analyser to try to differentiate Acorn-format ROMs from other things called .rom, which are likely to be numerous.	2016-08-28 12:43:17 -04:00
Thomas Harte	d9f0065154	Sketched out just enough classes to get through the get-contents-into-memory step of static analysis.	2016-08-28 12:20:40 -04:00
Thomas Harte	24938326ac	ROMs definitely have no behaviour other than responding to memory accesses. Cartridges might. So picked the more general term. Sketched out a class at least to parse PRG as though it were a cartridge. Hence the static analyser can guess at whether a PRG is a cartridge or an ordinary program.	2016-08-27 18:26:51 -04:00
Thomas Harte	a1b3a18d11	Started forcing a resolution on ROMs by doing. But have immediately misstepped. Rename coming momentarily...	2016-08-27 18:17:40 -04:00
Thomas Harte	56c0d70c1f	Gave disks their own namespace.	2016-08-27 17:15:09 -04:00
Thomas Harte	c0402d0c2b	Gave tapes their own namespace.	2016-08-27 17:09:45 -04:00
Thomas Harte	8c333059a8	Turning this into a slog: gave UEF a more appropriate name, got as far as now having to decide what to do about ROMs as to structure. I guess they're machine specific, so specific classes?	2016-08-27 16:40:21 -04:00
Thomas Harte	e68ff64045	Actually, this is less prescriptive.	2016-08-27 13:42:51 -04:00
Thomas Harte	5ffd9e4f0d	This is probably how the static analyser interface will look?	2016-08-23 21:35:59 -04:00
Thomas Harte	0d077691b0	Resolved warning.	2016-08-23 21:10:22 -04:00
Thomas Harte	38aec44d85	Made sufficient changes for the Vic itself to believe it can recast a PRG as a tape and insert it that way. So now the ball is in the court of: how the heck are Commodore tapes encoded?	2016-08-15 19:44:41 -04:00
Thomas Harte	6079d30e58	Eliminated waiting here — either the buffer can be enqueued now or it is dropped.	2016-08-14 16:20:24 -04:00
Thomas Harte	5373f6cc57	Completed setting of options, including mapping from country to ROM + television standard.	2016-08-14 14:23:08 -04:00
Thomas Harte	b5af1746d5	Added a through path to the Objective-C for setting region and memory size.	2016-08-14 14:14:59 -04:00
Thomas Harte	f15d89239f	Made a stab at storage and restoration of country and memory size.	2016-08-14 14:00:08 -04:00
Thomas Harte	df77c2a20a	Added the XIB side of wiring for region and memory size options.	2016-08-14 13:53:14 -04:00
Thomas Harte	12bad8f23f	Turned the 6560 into an ordinary template, similar to the rest of the project, albeit right now with a fairly shonky internal implementation. Fixed a Mac-specific interface sizing issue.	2016-08-09 20:41:05 -04:00
Thomas Harte	285a288c80	Switched to two cycles of options loading, meaning that they get set before files are inserted. Might need some further work?	2016-08-07 21:48:09 -04:00
Thomas Harte	be54d8040e	Made a first stab at having automatic loading be optional. But things are currently arranged such that the machine options are communicated too late to have an effect. So work to do.	2016-08-06 17:39:27 -04:00
Thomas Harte	58297f1baf	Performed the basic metadata and routing for opening D64 files. Realised that I wasn't actually necessarily catching exceptions properly for all file opens, and fixed.	2016-08-01 07:09:15 -04:00
Thomas Harte	18744cd98b	Slightly updated comments, switched to 1540 ROM so as very slightly to improve loading time.	2016-08-01 04:37:30 -04:00
Thomas Harte	89a1881fef	Started turning the 1540 into an actual disk drive.	2016-07-29 11:03:09 -04:00
Thomas Harte	0e581c7607	Factored out the stuff of running a timed event loop from the TapePlayer.	2016-07-29 07:15:46 -04:00
Thomas Harte	e55db0cfe8	Made an attempt to eliminate creeping tape processing accuracy misses, which implied factoring out the GCM and LCD functions, which I then felt didn't really amount to signal processing.	2016-07-29 05:19:01 -04:00
Thomas Harte	015cea494d	Switched to a much-more straightforward PLL. I think I'm just fiddling now rather than moving forwards. Probably time to move on?	2016-07-28 11:32:14 -04:00
Thomas Harte	e061e849d4	Had a second bash at the PLL. Probably I should read some of the literature.	2016-07-27 16:24:24 -04:00
Thomas Harte	0aa90b943b	Switched to specifying bit length as a quotient for the purposes of a PCMSegment and verified that I had the logic for picking a Commodore time zone backwards: bigger numbers are faster, not slower. ... Started sketching out a DiskDrive class.	2016-07-15 06:51:11 -04:00
Thomas Harte	74817f6664	With a history of three pulses, this can track up a 10% sine variation in a 1010101 stream. So I guess this'll do for now?	2016-07-14 19:54:48 -04:00
Thomas Harte	ac1bc588dd	Improved factoring and increased window of testing, causing both the fast and slow tests to show framing errors.	2016-07-14 07:12:02 -04:00
Thomas Harte	d1fe07f14d	Added test of perfect DPLL input timing.	2016-07-12 21:42:23 -04:00
Thomas Harte	75d95c0bc0	Sketched out an interface for a digial PLL. Not persuaded yet. Baby steps.	2016-07-11 22:12:58 -04:00
Thomas Harte	1e9eedc314	Factored out the PCM track since it's going to be a useful construct for almost every file format. Documented it a little better.	2016-07-10 18:36:52 -04:00
Thomas Harte	6cfc514c2d	Made the rote changes necessary to attempt to open and to supply a G64 to the Vic.	2016-07-10 12:57:17 -04:00
Thomas Harte	ff49857f5c	Started sketching out support for the G64 file format.	2016-07-10 10:17:53 -04:00
Thomas Harte	9e3d6b762b	Sketched out the generic interface for a disk, documenting it and the tape interface while I'm here.	2016-07-10 08:54:39 -04:00
Thomas Harte	d8334edf4a	Started trying to clean up, including commuting the C1540 source file name to match its class name but mainly by adding documentation.	2016-07-10 07:46:20 -04:00
Thomas Harte	656cd211d7	Was transmitting bit levels backwards (probably?); 1540 now acknowledges byte received.	2016-07-09 18:06:49 -04:00
Thomas Harte	01746f0512	This is probably a valid test. But I'm not completely sure. Time to figure out what's happening on the 1540 end.	2016-07-09 18:01:04 -04:00
Thomas Harte	cd84c35552	Whoops, one bit too short.	2016-07-09 17:51:46 -04:00
Thomas Harte	cd362b46b3	This is a valid attempt to send a whole byte, I think.	2016-07-09 17:51:04 -04:00
Thomas Harte	3560babd7e	Got back to a failing test, now while trying to transmit a whole byte. Good stuff!	2016-07-09 17:39:51 -04:00
Thomas Harte	66caa3c6dc	Fixed setup of bridge class.	2016-07-09 17:23:43 -04:00
Thomas Harte	bf03985ea4	Here's an instantly failing test...	2016-07-09 17:22:10 -04:00
Thomas Harte	da6fe2e983	This should be enough of a shell to write some actual tests.	2016-07-09 15:47:53 -04:00
Thomas Harte	865eb421cd	Quick on-disk tidy up.	2016-07-09 15:44:55 -04:00
Thomas Harte	7cc4bf3fe7	Hit and hope is getting me nowhere. Time to unit test this thing.	2016-07-09 15:40:25 -04:00
Thomas Harte	81e6cc34e5	Per the ROM disassembly, the Vic's VIA outputs are inverted for the benefit of the serial bus.	2016-07-07 06:57:21 -04:00
Thomas Harte	1baf21827c	Since the ROM is well disassembled, let's actually try to be a 1541 first.	2016-07-06 22:17:32 -04:00