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Commit Graph

182 Commits

Author SHA1 Message Date
Thomas Harte
4d4852bb78 Ensured that Times start life in their simplest form. 2016-12-24 15:18:03 -05:00
Thomas Harte
4728bda0a2 Added an additional constructor to make sure that regular ints go to the correct place. 2016-12-24 13:27:57 -05:00
Thomas Harte
1e970a9772 Started stepping slowly towards allowing writing on the disk controller, taking the opportunity to introduce self-simplifying behaviour to Storage::Time. 2016-12-24 13:07:23 -05:00
Thomas Harte
e4e0347638 Attempted to consolidate some of the repetition. 2016-12-21 22:17:00 -05:00
Thomas Harte
03579f33f1 Fixed multi-coverage insertion, via an appropriate test. 2016-12-20 21:38:32 -05:00
Thomas Harte
7eca910cc5 Fixed insertion location finding logic, working on the relevant test. 2016-12-20 21:14:05 -05:00
Thomas Harte
823ab9bc34 Completed initial non-trivial test, fixing revealed errors. 2016-12-20 19:15:36 -05:00
Thomas Harte
5a508ea0df Attempted properly to cover the exactly-equal starts and ends cases, and to improve meaning. 2016-12-20 18:32:49 -05:00
Thomas Harte
63d861a2f3 Switched from C-in-the-brain manual offset counting to using iterators like an ordinary C++ person. 2016-12-20 18:17:54 -05:00
Thomas Harte
6f17076003 Switched to much more logical shared_ptr ownership of PCMSegmentEventSources by Periods. 2016-12-20 18:13:10 -05:00
Thomas Harte
497b2ae4dd Still by manual inspection: the time for the next event should be provisional until proven acceptable, allowing a proper measurement of time until exiting the period to be taken; also fixed the accumulated period error when seeking back onto the underlying track. 2016-12-20 08:14:16 -05:00
Thomas Harte
6bdde542c5 Edging towards functioning automatic tests, fixed right-period adjustment and slightly decreased searching cost while in the process of adding a test. 2016-12-20 07:52:14 -05:00
Thomas Harte
ec624eaab1 Made an attempt fully to implement PCMPatchedTrack. Which now requires tests. 2016-12-20 07:30:57 -05:00
Thomas Harte
1ef1f6ec69 Attempted to implemnt seek_to and to finish add_segment. Started doing a little of get_next_event but ran out of time for the day. 2016-12-19 21:46:02 -05:00
Thomas Harte
8f937ceac8 Made an attempt to come up with a data structure that actually makes sense (though perhaps this is textbook list rather than vector stuff? I guess it depends on the frequency I expect inserts to occur versus reads) and to implement inserts. Though the Periods aren't yet honoured. 2016-12-19 07:42:43 -05:00
Thomas Harte
e081f224b6 Implemented a very basic PCMTrack test, nevertheless revealing an oversight in PCMSegmentEventSource related to improperly counting to the index hole if the final bit is set. Took that as a message that I should comment and document the event source. 2016-12-18 22:53:24 -05:00
Thomas Harte
a6354ebb01 Reimplemented PCMTrack to use PCMSegmentEventSource, eliminating code duplication. 2016-12-18 21:37:05 -05:00
Thomas Harte
f9a5595dad Added seeking tests, correcting such errors as uncovered. 2016-12-18 10:19:24 -05:00
Thomas Harte
3297f6d545 Made an attempt to implement seek_to on PCMSegmentEventSource, taking account of off-by-half counting. 2016-12-17 22:44:33 -05:00
Thomas Harte
3116a2cf4c Realised I was actually testing PCMSegmentEventSource, not PCMSegment; implemented a spread of tests; hence fixed PCMSegmentEventSource. 2016-12-17 21:47:13 -05:00
Thomas Harte
254cc41fd6 Made an attempt to separate and isolate the stuff of creating flux events from a PCMSegment, eventually to factor that out of PCMTrack and make it available also to PCMPatchedTrack. 2016-12-17 21:13:57 -05:00
Thomas Harte
313db75303 Ensured the patchable track owns its underlying track. 2016-12-17 18:17:22 -05:00
Thomas Harte
f1a08b7ab5 Opted to pass times by reference and added enough to PCMPatchedTrack that it could start being used by the disk controller, albeit that it doesn't work. 2016-12-17 16:26:45 -05:00
Thomas Harte
dc08a23ceb This is going to be a slow walk, I think. This class attempts to be the scratchpad which will hold in-memory track modifications. 2016-12-16 19:20:38 -05:00
Thomas Harte
c4041b06a8 This'll do as a write interface, won't it? 2016-12-07 22:19:20 -05:00
Thomas Harte
3f7f2c6117 'Tape' has joined the new underscore orthodoxy. 2016-12-03 12:05:19 -05:00
Thomas Harte
0dc2aa6454 Commuted all of 'Storage' other than 'Tape' to postfix underscores. 2016-12-03 11:59:28 -05:00
Thomas Harte
81ee834530 As well as a bunch of logging, reinstated rotation position preservation across tracks. 2016-12-02 18:36:47 -05:00
Thomas Harte
93c573bfa9 Implemented missing status bits (other than the index hole), and a head loading delay for the Microdisc. 2016-12-01 21:13:16 -05:00
Thomas Harte
2222cb65d6 Split the status up into flags, assembled into a register upon demand. Attempted to implement some of the differences between the 1770/1772 and 1773/1793. Albeit with a motor fix still in place. 2016-11-30 22:26:02 -05:00
Thomas Harte
f44542c18c Improved naming: this now explains what, not the mechanics of how. 2016-11-26 23:35:11 +08:00
Thomas Harte
5c8ecd3051 It probably needs a better name, but hastily implemented track caching at the Disk level. 2016-11-26 14:27:06 +08:00
Thomas Harte
2f86b07cfa Added a parser for Oric-format MFM disks. Causing my first disk to load! 2016-11-26 13:40:10 +08:00
Thomas Harte
dcfdd73077 Switched to more conventional runtime polymorphism, also now allowing encoders (shifters as were) to be obtained, as a slightly lower-level interface than vector-of-sectors. 2016-11-26 13:39:20 +08:00
Thomas Harte
b180f04c87 Okay, so this file format wasn't what I hoped it was. It's another hack. Lots of work to do. 2016-11-26 10:19:10 +08:00
Thomas Harte
7613755f94 Fixed addressing: types are 1 and 2, not 0 and 1. 2016-11-26 10:13:12 +08:00
Thomas Harte
8499783b14 Dragged multibyte primitives and signature checks up to the base class. Implemented support for Oric MFM-style .DSK, at the file format level. 2016-11-21 20:47:16 +08:00
Thomas Harte
31c2548804 Created a base class for the boilerplate fopen stuff, switched as many classes as possible to its use, switched to postfix underscores and non-camelCase names. 2016-11-21 20:14:09 +08:00
Thomas Harte
97811fe590 Made minor fix to ensure that a header that appears to extend beyond the end of an Oric .TAP doesn't create an ostensibly endless tape. 2016-11-15 12:02:03 +08:00
Thomas Harte
fce48b9b8c I am instructed that the Oric actually catches only positive transitions, and compares the distance between those to a threshold. So here's an altered version of the tape parser that does that. 2016-11-09 06:37:10 -05:00
Thomas Harte
c257e7f58d Implemented better sync-to-zero and discovered a header counting bug plus, probably, a misleading representation of gaps in the Oric TAP decoder. 2016-11-07 20:17:06 -05:00
Thomas Harte
80702616ea Had a quick go at using the Oric parser for static analysis. Found out that synchronisation is lost. Need to investigate. 2016-11-06 22:56:38 -05:00
Thomas Harte
7205c3f82b Made an attempt to build in Oric slow/fast detection. 2016-11-06 21:31:10 -05:00
Thomas Harte
d1ef2f7c63 Made an attempt to consolidate what I learnt of Oric encoding while building this hastily and untidily directly into the Oric implementation.
(while adding support for the slow tape encoding mode)
2016-11-06 19:22:09 -05:00
Thomas Harte
353c1c8ea3 Shifted ownership of PETSCII -> string conversion down to the storage layer, where it's useful for tape parsing. 2016-11-06 18:43:51 -05:00
Thomas Harte
1b15bc3a6c Started relocating the tape parsers down from static analyser to storage, to signify that they may be used by the emulation (if fast loading is supported on that machine). 2016-11-06 16:13:13 -05:00
Thomas Harte
827a919368 This is an initial attempt at reading actual tape data. It loses sync though. 2016-11-02 22:30:53 -04:00
Thomas Harte
d3634488e6 Made an attempt better to deal with multiple-file TAPs; also started using a zero level for the header/data gap. 2016-10-24 21:59:06 -04:00
Thomas Harte
cbbd31c2e0 Explained what this recently factored-out class does, and removed code from the header. 2016-10-20 19:33:25 -04:00
Thomas Harte
cc0b70828b Removed attempt at multiple-file logic, at least for the time being. Starting to wonder whether I actually need anything beyond a literal streaming of bytes? 2016-10-16 22:15:24 -04:00