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Commit Graph

1252 Commits

Author SHA1 Message Date
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
bdc6a5635f Merge branch 'master' of github.com:TomHarte/CLK 2016-08-31 21:21:37 -04:00
Thomas Harte
a9b67dfba0 Introduced an NSDocumentController subclass. 2016-08-31 21:21:07 -04:00
Thomas Harte
7bc2b6b161 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. 2016-08-31 20:43:29 -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
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
82c8459055 Minor tidying of namespace usage declarations. 2016-08-27 17:18:12 -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
1aebb4ea03 Merge remote-tracking branch 'origin/master' into FasterLoading 2016-08-24 20:52:10 -04:00
Thomas Harte
2f470843e2 Update README.md
Extended discussion, fixed sentence structure.
2016-08-24 09:21:01 -04:00
Thomas Harte
b3ae582c76 Update README.md
Fixed number list.
2016-08-24 09:19:26 -04:00
Thomas Harte
f170991c78 Update README.md
Produced a more philosophical rewrite.
2016-08-24 09:18:35 -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
dab3580111 Experimental: can I afford a lower sampling rate if there's a low-pass filter in effect? 2016-08-22 22:18:05 -04:00
Thomas Harte
f937e08c91 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
2016-08-21 20:45:09 -04:00
Thomas Harte
1541273785 Moved responsibility for throwing in a low-pass filter up to the Vic, appropriately. 2016-08-21 18:13:31 -04:00
Thomas Harte
c783090980 It turns out that the Vic has a 1.6Khz low-pass filter. So added that. 2016-08-21 12:13:41 -04:00
Thomas Harte
8d839c5278 I think this is correct. And have explained why. 2016-08-20 16:54:43 -04:00
Thomas Harte
7c9455251d Fixed reload for the lower-frequency audio channels. 2016-08-19 17:34:01 -04:00
Thomas Harte
99157ad6b2 Ensured the 6560 knows its real audio clock on a PAL machine; removed some stray semicolons. 2016-08-19 13:35:34 -04:00
Thomas Harte
e985c72ce8 Removed a dead special case. 2016-08-19 12:23:06 -04:00
Thomas Harte
0cf3e25dd0 Merge pull request #46 from TomHarte/PRGTape
Adjusts non-ROM PRG loading to be via the tape interface
2016-08-19 12:20:11 -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
902c0f967a Implements known phase pattern for PAL output. 2016-08-17 08:09:48 -04:00
Thomas Harte
2935848f35 Adopted header/header/data/data pattern. But still not complete joy. 2016-08-17 08:03:34 -04:00