89 Commits

Author	SHA1	Message	Date
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	963a479908	Made a quick first attempt at getting a file name from Acorn tape, failing terribly but at least formalising tapes being able to signal their end.	2016-08-29 21:53:06 -04:00
Thomas Harte	82c8459055	Minor tidying of namespace usage declarations.	2016-08-27 17:18:12 -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	73ce67bee8	Added some documentation of the intention here.	2016-08-19 11:04:59 -04:00
Thomas Harte	4edd1214f1	This has now successfully loaded its first PRG-as-a-tape.	2016-08-19 10:58:42 -04:00
Thomas Harte	2935848f35	Adopted header/header/data/data pattern. But still not complete joy.	2016-08-17 08:03:34 -04:00
Thomas Harte	e5523dbbed	This gets through loading the first(/only?) copy. I tried repeating it with a bit-flipped header, now I'm trying repeating the header with a different file type. More documentation searching to do, I guess.	2016-08-16 22:17:08 -04:00
Thomas Harte	1bca9aa2bb	Fixed parity: now calculated from the actual byte and works the other way around. The Vic now believes it is loading the actual program. So I guess bytes, headers and the lead-in is working.	2016-08-16 21:41:09 -04:00
Thomas Harte	dfe9fb83ef	This proves that bytes are being deposited properly. For the first 36 anyway, and with no announcement.	2016-08-16 21:09:50 -04:00
Thomas Harte	12f8aff65b	Lengths I'd taken seem to have been for dipoles, not single poles. So I just doubled the clock rate. Also I was producing each dipole as high then low, when they should probably be low then high. The Vic now at least recognises that something is happening on the tape.	2016-08-16 19:46:53 -04:00
Thomas Harte	3a23d5d8cf	Adjusted the check digit.	2016-08-15 22:44:36 -04:00
Thomas Harte	dbe47f3f45	I've obviously misunderstood something as, as far as I'm concerned, this should at least get me a 'LOADING'.	2016-08-15 22:40:05 -04:00
Thomas Harte	7994148f55	I'm starting to make a little headway, I think: this performs lead-ins and countdowns, though with no actual data or anything as helpful as that.	2016-08-15 22:10:53 -04:00
Thomas Harte	7e2b4554ea	This likely forms the Commodore dipoles correctly. It just stays stuck in leader tone forever is all.	2016-08-15 20:08:50 -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	3aa40212f3	Fixed minor documentation error; admitted that this class didn't invent the idea of a pulse.	2016-08-15 19:37:21 -04:00
Thomas Harte	ee2a7c9415	Added slightly to exposition, to match other formats.	2016-08-01 06:54:57 -04:00
Thomas Harte	2799a87218	Reduced possibility of overflow on LCM, improved commenting widely, removed one stale piece of G64 bootstrapping caveman stuff.	2016-08-01 06:04:55 -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	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	c306d705e1	Made a quick first attempt at all-the-way-through tape wiring for the Vic.	2016-06-26 19:43:09 -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	ee19417ded	Made an attempt quickly to implement parsing of the Commodore .TAP file format.	2016-06-25 16:09:32 -04:00
Thomas Harte	21ca1ef86b	Started attempting to clarify instance variable usage.	2016-03-12 23:19:10 -05:00
Thomas Harte	2b8fb5b615	Made an attempt to fix my 0114 implementation.	2016-02-20 23:13:58 -05:00
Thomas Harte	f7fc7cb932	Implemented some portion of 0114; ensured I'm safely skipping chunks in all cases.	2016-02-20 22:18:00 -05:00
Thomas Harte	ec3cccbb0d	Working towards HQ UEF support: fixed bug whereby writing to tape output would reset input pulse stepper; added support for chunk 0116 and approximate support for 0113.	2016-02-20 22:03:14 -05:00
Thomas Harte	2e3ba6bbb2	Removed some logging.	2016-02-07 14:42:40 -05:00
Thomas Harte	adc6838ba0	Continued slow migration of shader ownership to CRT. Attempted to start debugging the tape interface.	2016-01-27 21:35:57 -05:00
Thomas Harte	e65cd4cf06	Some data is marginally reaching the CPU from the tape.	2016-01-19 22:05:34 -05:00
Thomas Harte	832797182f	Update TapeUEF.cpp ... Corrected chunk for which _tone_length is used, definition of a carrier tone chunk.	2016-01-19 18:59:10 -05:00
Thomas Harte	127684c590	With silence and high tone implemented, this may well hit a large proportion of existing files.	2016-01-18 19:45:14 -06:00
Thomas Harte	7d6214e078	This likely gets chunks 0100 and 0102 correct.	2016-01-18 19:37:36 -06:00
Thomas Harte	5a39e42413	Wired up enough such that some basic attempt at parsing a UEF occurs.`	2016-01-18 17:06:09 -06:00
Thomas Harte	2779f0e569	Statred working on support for at least the most fundamental file format.	2016-01-18 15:46:41 -06:00