Thomas Harte
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556b77f2fd
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Added some TODOs, re-enabled master Acorn decision.
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2016-09-07 07:39:47 -04:00 |
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Thomas Harte
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6522a9a6c2
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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.
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2016-09-07 07:34:48 -04:00 |
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Thomas Harte
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d66516fd62
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Finished parser for data blocks.
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2016-09-06 22:10:33 -04:00 |
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Thomas Harte
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d7d5f24aab
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Attempted, at least, to insert a dummy byte as per the specification.
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2016-09-06 21:51:04 -04:00 |
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Thomas Harte
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bdebc18e0a
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Added a header parser for Commodore tapes. No time to grab file bodies now; time to go to work.
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2016-09-06 08:49:32 -04:00 |
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Thomas Harte
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8901e94f0f
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Fixed: was counting between low->high transitions rather than vice versa by adding low time then checking.
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2016-09-06 07:06:46 -04:00 |
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Thomas Harte
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149cbb327b
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Made something of a first attempt at a parser. Which is failing terribly.
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2016-09-06 06:59:51 -04:00 |
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Thomas Harte
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8b933182af
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Added enough wiring (hopefully) that the Commodore tape's GetFiles should be called when appropriate.
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2016-09-06 06:39:40 -04:00 |
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Thomas Harte
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cfe8251166
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Further documented interface, fixed a potential parsing blockage.
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2016-09-05 22:12:52 -04:00 |
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Thomas Harte
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963e307d0c
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Increased documentation.
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2016-09-05 22:06:39 -04:00 |
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Thomas Harte
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05c24222d8
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Liberated the tape parser template.
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2016-09-05 20:02:35 -04:00 |
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Thomas Harte
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463b74301d
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Sought to reduce the amount of heap nonsense.
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2016-09-05 19:59:58 -04:00 |
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Thomas Harte
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11850b872d
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Sought to emulate 0111 as a longer 0110 to test a particular HQ UEF. Some progress. Not great.
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2016-09-05 18:28:43 -04:00 |
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Thomas Harte
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6239297212
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Fixed off-by-one error on filename lengths and order-of-operations mistake preventing data CRC from being checked.
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2016-09-05 18:15:15 -04:00 |
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Thomas Harte
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e25fee2332
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I'm going back to believing in this test.
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2016-09-05 17:55:40 -04:00 |
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Thomas Harte
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68874b6080
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Fixed accidental implicit assumption that Acorn files will be at least two blocks.
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2016-09-05 17:53:57 -04:00 |
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Thomas Harte
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93f5b5303e
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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.
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2016-09-05 17:17:52 -04:00 |
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Thomas Harte
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6f62803814
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Resolved dropping of every other file.
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2016-09-01 08:35:28 -04:00 |
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Thomas Harte
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21e5f407d8
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I need to get a bit more definitive on naming but this gets all the way to setting a configuration upon an Electron.
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2016-08-31 22:03:42 -04:00 |
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Thomas Harte
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bdc6a5635f
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Merge branch 'master' of github.com:TomHarte/CLK
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2016-08-31 21:21:37 -04:00 |
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Thomas Harte
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a9b67dfba0
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Introduced an NSDocumentController subclass.
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2016-08-31 21:21:07 -04:00 |
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Thomas Harte
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7bc2b6b161
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Added the minor piece that will allow analysis results to be obtained from Objective-C, and exposed to Swift in sufficient detail for it to be able to pass on to the machine.
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2016-08-31 20:43:29 -04:00 |
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Thomas Harte
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9d7962d6c0
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Closed the loop on Electron analysis for now. Including loading command detection.
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2016-08-31 20:24:13 -04:00 |
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Thomas Harte
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d8c0da7ccb
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I think this should lead to a full representation of files on an Acorn tape, but subject to is_at_end working.
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2016-08-31 19:57:09 -04:00 |
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Thomas Harte
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7b5d5858ff
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CRCs are just stored reversed. Of course. So this should be sufficient to load each chunk of an Acorn file.
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2016-08-30 08:13:40 -04:00 |
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Thomas Harte
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b3521ed187
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Started working towards capturing everything there is to know about a file. CRC calculation appears to be flawed somehow at the moment.
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2016-08-30 07:38:08 -04:00 |
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Thomas Harte
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6218f05b8c
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This loads the name. That'll do for now.
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2016-08-29 22:05:06 -04:00 |
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Thomas Harte
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963a479908
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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.
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2016-08-29 21:53:06 -04:00 |
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Thomas Harte
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0032ad2634
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Edging ever onwards; killed forced attempt at uniformity in targets, sketched out the interface for a next-file-from call to Acorn tapes.
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2016-08-29 21:10:38 -04:00 |
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Thomas Harte
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d1abfc040c
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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.
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2016-08-29 08:48:49 -04:00 |
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Thomas Harte
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29c972f4b8
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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.
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2016-08-28 12:43:17 -04:00 |
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Thomas Harte
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d9f0065154
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Sketched out just enough classes to get through the get-contents-into-memory step of static analysis.
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2016-08-28 12:20:40 -04:00 |
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Thomas Harte
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24938326ac
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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.
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2016-08-27 18:26:51 -04:00 |
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Thomas Harte
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a1b3a18d11
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Started forcing a resolution on ROMs by doing. But have immediately misstepped. Rename coming momentarily...
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2016-08-27 18:17:40 -04:00 |
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Thomas Harte
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82c8459055
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Minor tidying of namespace usage declarations.
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2016-08-27 17:18:12 -04:00 |
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Thomas Harte
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56c0d70c1f
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Gave disks their own namespace.
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2016-08-27 17:15:09 -04:00 |
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Thomas Harte
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c0402d0c2b
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Gave tapes their own namespace.
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2016-08-27 17:09:45 -04:00 |
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Thomas Harte
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8c333059a8
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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?
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2016-08-27 16:40:21 -04:00 |
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Thomas Harte
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55ada536ac
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Added a test call, further mutated result structure.
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2016-08-27 14:25:16 -04:00 |
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Thomas Harte
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e68ff64045
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Actually, this is less prescriptive.
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2016-08-27 13:42:51 -04:00 |
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Thomas Harte
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1aebb4ea03
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Merge remote-tracking branch 'origin/master' into FasterLoading
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2016-08-24 20:52:10 -04:00 |
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Thomas Harte
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2f470843e2
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Update README.md
Extended discussion, fixed sentence structure.
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2016-08-24 09:21:01 -04:00 |
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Thomas Harte
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b3ae582c76
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Update README.md
Fixed number list.
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2016-08-24 09:19:26 -04:00 |
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Thomas Harte
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f170991c78
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Update README.md
Produced a more philosophical rewrite.
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2016-08-24 09:18:35 -04:00 |
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Thomas Harte
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5ffd9e4f0d
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This is probably how the static analyser interface will look?
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2016-08-23 21:35:59 -04:00 |
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Thomas Harte
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0d077691b0
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Resolved warning.
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2016-08-23 21:10:22 -04:00 |
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Thomas Harte
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dab3580111
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Experimental: can I afford a lower sampling rate if there's a low-pass filter in effect?
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2016-08-22 22:18:05 -04:00 |
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Thomas Harte
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f937e08c91
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Merge pull request #47 from TomHarte/PALAudioFrequency
Corrects Vic audio output (i) in PAL mode; and (ii) generally as concerns all but the highest-frequency channel
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2016-08-21 20:45:09 -04:00 |
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Thomas Harte
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1541273785
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Moved responsibility for throwing in a low-pass filter up to the Vic, appropriately.
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2016-08-21 18:13:31 -04:00 |
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Thomas Harte
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c783090980
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It turns out that the Vic has a 1.6Khz low-pass filter. So added that.
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2016-08-21 12:13:41 -04:00 |
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