147 Commits

Author	SHA1	Message	Date
Thomas Harte	9827466297	Minor post-haste cleaning.	2016-09-15 07:58:32 -04:00
Thomas Harte	8992feb8cd	Completed a first parse at the GCR parser, proving how incredibly slow my drive is.	2016-09-15 07:54:42 -04:00
Thomas Harte	9d6dcb80a7	Started work on a GCR parser and the helper functions that lie behind that.	2016-09-13 21:53:36 -04:00
Thomas Harte	df7aed7e8b	The Commodore analyser now at least hands off to somebody else a chance to parse disks.	2016-09-13 07:26:51 -04:00
Thomas Harte	40660fe680	Made yet another guess at Commodore analysis. Elevated fast tape-related unnatural speed up to the OS-side mechanisms.	2016-09-12 22:06:03 -04:00
Thomas Harte	eeec516fa6	Implemented seeking on tapes, mucked about a bit more with the Commodore analyser, at least temporarily removed cropping from the Vic emulator.	2016-09-11 17:09:00 -04:00
Thomas Harte	1ca4a2a012	Sought to be more intelligent in handling cases where the two parts of a header or data field don't match — if either looks good then use it in isolation.	2016-09-10 17:01:17 -04:00
Thomas Harte	a5b17932ca	Attempted further to improve memory model guesswork. With many further improvements to make...	2016-09-08 21:09:37 -04:00
Thomas Harte	27fedaf892	The error flag is no longer directly exposed. I also tweaked the Commodore import numbers just a touch. But I think I need proper calibration.	2016-09-08 21:09:05 -04:00
Thomas Harte	2b053436e5	Missed from previous commit; removed assumption that get_next_data always succeeds.	2016-09-08 07:39:43 -04:00
Thomas Harte	54557d7f13	Added reminder, ensured the couldn't-find-data case doesn't cause a crash. Though it should imply some manual investigation.	2016-09-08 07:39:17 -04:00
Thomas Harte	50175a9aed	Added logic to try to spot when the first program is BASIC and, if so, what the correct memory model is, then to get that information to the Vic. Though it currently then gets overwritten by the view controller. Grrrr.	2016-09-07 22:17:19 -04:00
Thomas Harte	556b77f2fd	Added some TODOs, re-enabled master Acorn decision.	2016-09-07 07:39:47 -04:00
Thomas Harte	6522a9a6c2	Pulled the strands together provisionally to complete Commodore ROM-format tape parsing. Things are going to get complicated if or when I need to tackle turbo loaders.	2016-09-07 07:34:48 -04:00
Thomas Harte	d66516fd62	Finished parser for data blocks.	2016-09-06 22:10:33 -04:00
Thomas Harte	bdebc18e0a	Added a header parser for Commodore tapes. No time to grab file bodies now; time to go to work.	2016-09-06 08:49:32 -04:00
Thomas Harte	8901e94f0f	Fixed: was counting between low->high transitions rather than vice versa by adding low time then checking.	2016-09-06 07:06:46 -04:00
Thomas Harte	149cbb327b	Made something of a first attempt at a parser. Which is failing terribly.	2016-09-06 06:59:51 -04:00
Thomas Harte	8b933182af	Added enough wiring (hopefully) that the Commodore tape's GetFiles should be called when appropriate.	2016-09-06 06:39:40 -04:00
Thomas Harte	cfe8251166	Further documented interface, fixed a potential parsing blockage.	2016-09-05 22:12:52 -04:00
Thomas Harte	963e307d0c	Increased documentation.	2016-09-05 22:06:39 -04:00
Thomas Harte	05c24222d8	Liberated the tape parser template.	2016-09-05 20:02:35 -04:00
Thomas Harte	463b74301d	Sought to reduce the amount of heap nonsense.	2016-09-05 19:59:58 -04:00
Thomas Harte	11850b872d	Sought to emulate 0111 as a longer 0110 to test a particular HQ UEF. Some progress. Not great.	2016-09-05 18:28:43 -04:00
Thomas Harte	6239297212	Fixed off-by-one error on filename lengths and order-of-operations mistake preventing data CRC from being checked.	2016-09-05 18:15:15 -04:00
Thomas Harte	e25fee2332	I'm going back to believing in this test.	2016-09-05 17:55:40 -04:00
Thomas Harte	68874b6080	Fixed accidental implicit assumption that Acorn files will be at least two blocks.	2016-09-05 17:53:57 -04:00
Thomas Harte	93f5b5303e	Factored out the stuff I expect to be common to this tape nonsense, started looking at the one currently-failing tape. More on the latter to do.	2016-09-05 17:17:52 -04:00
Thomas Harte	6f62803814	Resolved dropping of every other file.	2016-09-01 08:35:28 -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	9d7962d6c0	Closed the loop on Electron analysis for now. Including loading command detection.	2016-08-31 20:24:13 -04:00
Thomas Harte	d8c0da7ccb	I think this should lead to a full representation of files on an Acorn tape, but subject to is_at_end working.	2016-08-31 19:57:09 -04:00
Thomas Harte	7b5d5858ff	CRCs are just stored reversed. Of course. So this should be sufficient to load each chunk of an Acorn file.	2016-08-30 08:13:40 -04:00
Thomas Harte	b3521ed187	Started working towards capturing everything there is to know about a file. CRC calculation appears to be flawed somehow at the moment.	2016-08-30 07:38:08 -04:00
Thomas Harte	6218f05b8c	This loads the name. That'll do for now.	2016-08-29 22:05:06 -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	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	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	55ada536ac	Added a test call, further mutated result structure.	2016-08-27 14:25:16 -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