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Commit Graph

83 Commits

Author SHA1 Message Date
Thomas Harte
dfaea5a922 Reduce floppy access cost. 2024-04-28 22:40:54 -04:00
Thomas Harte
ce8f782577 Corrects meaning of IBM-style RDY. 2021-10-06 04:42:44 -07:00
Thomas Harte
cddd72876f Flips meaning of ejected bit, to please the IIgs. 2020-11-18 17:20:48 -05:00
Thomas Harte
d8b699c869 Corrects index pulse signalling. 2020-07-19 00:06:27 -04:00
Thomas Harte
4ee29b3266 Switches disk seeking logic fully to floating point. 2020-07-17 22:08:58 -04:00
Thomas Harte
9a952c889f Fixes exit from random gain noise. 2020-07-15 22:44:54 -04:00
Thomas Harte
aed61f6251 Implements latest advocated MC3470 behaviour. 2020-07-15 19:34:05 -04:00
Thomas Harte
25996ce180 Further doubles down on construction syntax for type conversions. 2020-05-09 23:00:39 -04:00
Thomas Harte
31c6faf3c8 Adds a bunch of consts. 2020-05-09 21:23:52 -04:00
Thomas Harte
f720a6201b Adds explicit type cast. 2020-03-29 18:36:57 -04:00
Thomas Harte
0c2f77305f Eliminates dangling printf. 2020-02-11 22:12:30 -05:00
Thomas Harte
05bcd73f82 Attempts to pull drive ownership into DiskController.
For the sake of being more intelligent as to drive clocking, hopefully. And, eventually, to support multiple drive selection.
2020-02-11 21:59:13 -05:00
Thomas Harte
aeac6b5888 Allows the type of RDY signal to be specified. 2020-01-16 21:34:48 -05:00
Thomas Harte
99122efbbc Adds a slight cool-down period on end-of-rotation.
Along with the corresponding inactive transition of the ready signal.
2020-01-15 23:29:52 -05:00
Thomas Harte
30e856b9e4 Renames motor_is_on_ to motor_input_is_on_ to start to disambiguate the two things. 2020-01-15 23:16:25 -05:00
Thomas Harte
f633cf4c3f Adds a basic implementation of the non-instantaneous index pulse. 2019-12-24 21:05:17 -05:00
Thomas Harte
dfa6b11737 Adds responsibility for an ongoing index pulse to the drive. 2019-12-24 20:53:37 -05:00
Thomas Harte
0dae608da5 Embraces std::make_[unique/shared] in place of .reset(new . 2019-12-23 21:31:46 -05:00
Thomas Harte
274867579b Deploys constexpr as a stricter const. 2019-12-22 00:22:17 -05:00
Thomas Harte
1c154131f9 Expands size of storage in Cycles/HalfCycles; adjusts widely to compensate. 2019-10-29 22:36:29 -04:00
Thomas Harte
909685d87d A drive with no disk is now happy to spin its motor.
It'll continue to produce index-hole events, which might not be accurate for 5.25" drives. Research to do.
2019-10-26 22:57:05 -04:00
Thomas Harte
9d17d48bca Ensures cycles_per_revolution_ is populated for fixed-rate drives. 2019-09-28 23:23:15 -04:00
Thomas Harte
d08d8ed22c Adds a further drift safeguard. 2019-07-26 23:23:01 -04:00
Thomas Harte
572e8b52e1 At the cost of extra storage, attempts to simplify away potential rounding issues around the index hole. 2019-07-26 17:20:32 -04:00
Thomas Harte
9b634472c6 Gets a little more rigorous on "high resolution". 2019-07-26 15:26:51 -04:00
Thomas Harte
d2bfd59953 Ensures positional continuity across rotation speed changes. 2019-07-25 22:29:54 -04:00
Thomas Harte
3d20ae47ea Ensures cycles_since_index_hole_ is wrapped to track length. 2019-07-25 21:48:01 -04:00
Thomas Harte
cb16790330 Improves qualifiers. 2019-07-15 22:40:45 -04:00
Thomas Harte
5b05a9bc61 Extends Drive to report is_writing and so that writing works as the first action. 2019-07-12 18:53:41 -04:00
Thomas Harte
2c39229b13 Adds has-new-disk flag, allowing mounting of software from the desktop. 2019-07-12 13:17:24 -04:00
Thomas Harte
c4ab0bb867 Starts sketching out an interface for IWM drives, eliminating a dangling use of unsigned as it goes. 2019-07-10 16:05:59 -04:00
Thomas Harte
b9c2c42bc0 Switches drives to using floats for time counting.
Hopefully to eliminate a lot of unnecessary `Time` work; inaccuracies should still be within tolerable range.
2019-07-02 15:43:03 -04:00
Thomas Harte
877b46d2c1 Advances IWM/drive emulation very close to the point of 'Welcome to Macintosh'. 2019-06-15 16:08:54 -04:00
Thomas Harte
e9d0676e75 Fiddles further with the tachometer. 2019-06-06 21:36:19 -04:00
Thomas Harte
7591906777 Numerous IWM fixes: the machine now seems to be trying to measure the tachometer. 2019-06-06 18:32:11 -04:00
Thomas Harte
511d292e73 Ensures gain noise is forgotten upon assumption of a new track. 2019-06-05 14:43:17 -04:00
Thomas Harte
833258f3d7 Sets things up to allow variable rotation rates, and especially Sony 800kb-style self-selecting rates. 2019-06-04 21:41:54 -04:00
Thomas Harte
78c7137427 Avoids observer communication if motor status hasn't changed. 2018-08-03 21:11:22 -04:00
Thomas Harte
abc5c50b2e Added some additional exposition. 2018-07-02 21:51:53 -04:00
Thomas Harte
abca38a548 Makes an initial removal of PCMPatchedTrack. Farewell, old friend. 2018-07-01 22:49:57 -04:00
Thomas Harte
555c2a4377 Makes a first sweep at converting the storage underlying PCMSegment to vector<bool>.
This is to remove another pain point, in preparation for the work immediately forthcoming but also work as-yet unknown.
2018-07-01 12:05:41 -04:00
Thomas Harte
62eef8cb40 Reinstates proper ready behaviour. 2018-06-18 21:35:39 -04:00
Thomas Harte
dde9b73a22 Creates the through-path that will be necessary for RWTS acceleration. 2018-06-09 12:51:53 -04:00
Thomas Harte
db8d8d8404 Commutes Sleeper to ClockingHint::Source, making state more granular. 2018-05-27 23:17:06 -04:00
Thomas Harte
85c4e009f3 Undoes reformatting error. 2018-05-14 20:03:32 -04:00
Thomas Harte
76802b5e38 Eliminates arc4random.
It seems not to be as portable as I'd hoped.
2018-05-14 20:01:20 -04:00
Thomas Harte
9f2f388e5a Ensures generation of random noise if too many zeroes exist on a disk surface. 2018-05-14 19:17:34 -04:00
Thomas Harte
0b771ce61a Removes all instances of the copyright symbol. 2018-05-13 15:19:52 -04:00
Thomas Harte
0cb5362c6f Disambiguates whether Step will occur in addition to below zero/beyond maximum. 2018-05-11 21:44:08 -04:00
Thomas Harte
9089bf6535 Adds step events. 2018-05-10 21:58:14 -04:00