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636 Commits

Author SHA1 Message Date
Thomas Harte
b921e893a2 Redirect relevant 2MG images to HDV. 2022-11-15 15:06:24 -05:00
Thomas Harte
d17fadbe0b Avoid off-by-one error in sector decoding. 
Specific issue: retaining the 256 bytes up to _and including_ the checksum, rather than excluding.
 2022-09-16 15:47:38 -04:00
Thomas Harte
9cba56237d Upgrade to constexpr. 2022-09-16 15:46:09 -04:00
Thomas Harte
ea9411b21c Breakup line, for easier debugging. 2022-09-16 15:43:23 -04:00
Thomas Harte
c4091a4cdb Fix address mapping, implement write. 2022-09-15 16:39:19 -04:00
Thomas Harte
d826532031 Read proper file contents. 2022-09-15 16:34:20 -04:00
Thomas Harte
d460f40b13 Improve comment. 
Status: this now seems to be blocked at unimplemented 5380 functionality.
 2022-08-30 16:44:03 -04:00
Thomas Harte
6fa4e379d2 Make a hacky and blunt offer of drive data. 2022-08-30 16:07:44 -04:00
Thomas Harte
e7b213604e Add comments. 2022-08-29 11:40:18 -04:00
Thomas Harte
20d685ec5c Permit a mass-storage device to be returned, in theory. 2022-08-26 16:38:10 -04:00
Thomas Harte
c7373a5d3e Overtly treat .ST images as FAT12. 2022-08-13 10:09:34 -04:00
Thomas Harte
8f2e94a1d8 Switch name back to emphasise _async_. 2022-07-16 14:41:04 -04:00
Thomas Harte
bf03bda314 Generalise AsyncTaskQueue, DeferringAsyncTaskQueue and AsyncUpdater into a single template. 2022-07-14 16:39:26 -04:00
Thomas Harte
1ce07e2ee8 This reads the file, so it can't be constexpr. 2022-07-05 17:01:38 -04:00
Thomas Harte
5ae461eb0b Avoid warning during optimised builds. 2022-06-03 15:43:27 -04:00
Thomas Harte
e7b3705060
Merge pull request #1007 from TomHarte/IPFFileFormat 
Adds partial support for the IPF file format.
 2022-06-02 12:58:47 -04:00
Thomas Harte
866b6c6129 Eliminate off_t. 2022-04-27 19:16:37 -04:00
Thomas Harte
18b6f17e86 With some refactoring makes some minor steps towards supporting gaps. 2022-01-06 17:24:31 -05:00
Thomas Harte
f37179d9f2 Gaps appear to contain pre-MFM data (?) 2022-01-02 15:39:26 -05:00
Thomas Harte
3e0b7d71d4 Properly handle partial bytes. 2022-01-01 19:09:19 -05:00
Thomas Harte
58d10943ed Add asserts to validate my reserve sizes. 2022-01-01 19:08:44 -05:00
Thomas Harte
dc920a04f6 Add missing #include. 2022-01-01 19:03:07 -05:00
Thomas Harte
d031381e70 Gaps provide content, and data chunk lengths seem to be in terms of unencoded bytes. 2022-01-01 18:47:07 -05:00
Thomas Harte
ed1b0b90f7 Makes a first attempt at encoding data. 2022-01-01 18:36:44 -05:00
Thomas Harte
38dd3c5c60 On second thoughts, no need to use a vector here. 2022-01-01 17:15:12 -05:00
Thomas Harte
350c98ab4d Add those densities I've yet discovered the rules for. 2021-12-29 18:15:37 -05:00
Thomas Harte
4f3c754771 Adds exposition. 2021-12-27 19:15:46 -05:00
Thomas Harte
dc994f001d Mention units. 2021-12-27 18:55:11 -05:00
Thomas Harte
9b6ccbcc95 Parses data and gap stream elements. 2021-12-27 18:12:44 -05:00
Thomas Harte
9d3cf9c73c Collate descriptions of all tracks. 2021-12-26 14:49:51 -05:00
Thomas Harte
28572d4392 Enforce string-length requirement. 2021-12-26 09:12:44 -05:00
Thomas Harte
0433db0370 Eliminate macro. 2021-12-25 19:36:54 -05:00
Thomas Harte
a6b326da48 Parse the INFO record. 2021-12-25 18:17:13 -05:00
Thomas Harte
e457ce66ea Adds sanity checks around CAPS block. 2021-12-25 17:32:29 -05:00
Thomas Harte
c118dd8afe Adds just enough to list all the blocks in an IPF. 2021-12-25 17:27:50 -05:00
Thomas Harte
dba3a3d942 Add through route to an IPF container. 2021-12-25 17:06:47 -05:00
Thomas Harte
6c606b5506 Fix through route to TargetPlatform::TypeDistinguisher. 2021-12-25 17:06:12 -05:00
Thomas Harte
544c137cb0 Add updated intel. 2021-10-16 13:30:56 -07:00
Thomas Harte
d9d20d9d30 Walk back slightly. 2021-10-14 18:02:58 -07:00
Thomas Harte
b12c640807 Makes drives non-copyable. 
To avoid error in the future.
 2021-10-14 12:37:55 -07:00
Thomas Harte
8960f471a0 Use unspread_bits for FM and MFM decoding. 2021-10-12 15:18:50 -07:00
Thomas Harte
955cb6411c Factor out bit spreading. 
(And do a better job of it)
 2021-10-12 14:49:01 -07:00
Thomas Harte
fc4ca4f8e3 I don't think there are sync words at the start of the track. 2021-10-12 10:38:15 -07:00
Thomas Harte
a1f02d0cd8 Add track padding. 2021-10-11 18:05:37 -07:00
Thomas Harte
addf9f9af4 Moves block byte writes into Storage::Encodings::MFM::Encoder. 2021-10-10 16:06:51 -07:00
Thomas Harte
c4cfcfab8e Checksums appear to be calculated as 32-bit quantities. 2021-10-10 12:58:10 -07:00
Thomas Harte
5e083426c5 Takes another run at checksums. 
It turns out I'd read entirely the wrong section of the ADF FAQ. Am now trying to piece things together from various EAB threads.
 2021-10-10 11:47:48 -07:00
Thomas Harte
aeaea073c6 Switch both: (i) which bits are odd/even; and (ii) nibble ordering. 2021-10-09 13:45:19 -07:00
Thomas Harte
ed303310bb Spell out slightly more; this makes debugging a touch easier. 2021-10-06 13:40:48 -07:00
Thomas Harte
ce8f782577 Corrects meaning of IBM-style RDY. 2021-10-06 04:42:44 -07:00