Thomas Harte
82d6a5387f
Gives Qt disk controllers independent ROM/RAM selection logic.
...
In particular, this fixes the Microdisc.
2020-07-29 21:06:41 -04:00
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
efd684dc56
Opts the BD-500 in for modified Shugart RDY.
...
Hopefully this is correct. I'm presently mystified as to other options.
2020-01-16 21:34:57 -05:00
Thomas Harte
aac3d27c10
Adds activity indicators for the BD-500 and Jasmin.
...
Also slightly cleans up DiskController a little further.
2020-01-15 23:39:15 -05:00
Thomas Harte
91fae86e73
Factors out paging, implements a bit more of the BD500.
...
That is, enough seemingly fully to work, if I force the drive to report ready.
2020-01-15 23:15:39 -05:00
Thomas Harte
6b84ae3095
Makes the Microdisc also a DiskController, and simplifies delegate interface.
2020-01-14 22:53:27 -05:00
Thomas Harte
9f30be1c13
Attempts to implement most of a Jasmin disk interface.
...
With one obvious omission: there's no way to start it? The real interface had a dedicated button, but I don't yet know what that button did. Research needed.
2020-01-05 20:05:55 -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
1c154131f9
Expands size of storage in Cycles/HalfCycles; adjusts widely to compensate.
2019-10-29 22:36:29 -04:00
Thomas Harte
4a1fa8fc13
Adds some const qualifiers.
2019-10-28 21:13:42 -04:00
Thomas Harte
7c3dd55e5c
Corrects typo and improves exposition.
2018-05-24 18:57:35 -04:00
Thomas Harte
0b771ce61a
Removes all instances of the copyright symbol.
2018-05-13 15:19:52 -04:00
Thomas Harte
d0fd4dd4db
The MSX is now an activity source.
...
Completing the set.
2018-05-12 17:32:53 -04:00
Thomas Harte
3ba6b6f1ee
Makes the Oric an event source.
2018-05-11 23:05:36 -04:00
Thomas Harte
4cbc87a17d
Corrects out-of-order initialisations for the 1770, Atari 2600 joystick, Pitfall II bus extender, Microdisc and 6502.
2017-11-10 22:20:44 -05:00
Thomas Harte
97a2be71e3
Introduces flush_tracks to Drive, while switching its interface to using Track::Address and adjusting associated integer types.
2017-10-06 21:45:12 -04:00
Thomas Harte
da082673d7
Drives now have a finite number of heads.
...
The Amstrad volunteers itself to be single sided. Everything else stays as it was.
2017-09-15 21:18:36 -04:00
Thomas Harte
42616da7ff
Adjusts the Oric Microdisc to propagate motor control more widely.
2017-09-11 22:15:54 -04:00
Thomas Harte
0622187ddf
Strips Controller of all capabilities now housed on the Drive.
2017-09-10 19:23:23 -04:00
Thomas Harte
90c7056d12
Started devolving timed event loop logic down to the drives, moving them closer to modelling real life.
2017-09-10 14:43:20 -04:00
Thomas Harte
4abd62e62b
Standardises on const [Half]Cycles as the thing called and returned, rather than const [Half]Cycles & as it's explicitly defined to be only one int in size, so using a reference is overly weighty.
2017-07-27 22:05:29 -04:00
Thomas Harte
55ecb0c022
Converted the Microdisc into a ClockReceiver.
2017-07-24 21:51:13 -04:00
Thomas Harte
8a2bdb8d22
Converted the TimedEventLoop and the things that sit atop it into ClockReceivers.
2017-07-24 21:19:05 -04:00
Thomas Harte
e01f3f06c8
Completed curly bracket movement.
2017-03-26 14:34:47 -04:00
Thomas Harte
90151e2094
Fixed to ensure a known initial control register value, which has taken effect.
2016-12-28 18:49:32 -05:00
Thomas Harte
a568172758
Made steps towards proper CRC generation. Am currently comparing against Oric disk images, as — amongst other things — they include precomputed CRCs.
2016-12-28 18:29:37 -05:00
Thomas Harte
c304db0f5a
Deintegrated the busy flag and the interrupt request line, as the latter is reset by status reads. Which also means I can start reporting the WD INTRQ line status directly from the Microdisc. That appears to be correct, rather than honouring the Microdisc IRQ select there.
2016-12-06 21:16:29 -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
442986ee2c
Introduced a head loading path for 1793 machines.
2016-12-01 20:12:22 -05:00
Thomas Harte
82899f2f47
Ensured flag setting is atomic, removed duplication of interrupt request versus busy, found better names for the personality testers, unified delegate protocol.
2016-12-01 07:41:52 -05:00
Thomas Harte
9b6c5e814a
Now that it can be more explicit, this should admit that it's '93-based, not '73.
2016-11-28 16:22:35 -05:00
Thomas Harte
2f459690d4
It would appear the 1770 and 1773 actually differ in relation to the (non-sensical) ability not to spin-up for a Type 2, and whether a side compare can occur. So the WD1770 class now requires a personality to be specified. Which it singly fails to honour.
2016-11-26 23:29:30 +08:00
Thomas Harte
e9d6566e9c
Of course, changing the IRQ enable may immediately change the IRQ line. Signal if so.
2016-11-26 09:35:44 +08:00
Thomas Harte
54246c8f1a
Interrupt enabling works the other way around I think, and both registers with only one bit defined should probably return '1' in all other places?
2016-11-25 21:24:59 +08:00
Thomas Harte
5c019ad1c0
Okay, so it looks like both ROM paging flags are the opposite of what I previously had.
2016-11-25 20:42:40 +08:00
Thomas Harte
7c2d9f3752
This seems to be right, per http://wiki.defence-force.org/doku.php?id=oric:hardware:floppy_disk_controller_wd1793
2016-11-22 22:35:43 +08:00
Thomas Harte
0c3644f350
Made a second parse at logic. We'll see.
2016-11-22 22:12:32 +08:00
Thomas Harte
13a608a8c2
Added what may be correct paging logic.
2016-11-22 22:09:52 +08:00
Thomas Harte
363db695e8
Started implementation of the Microdisc selection logic.
2016-11-22 08:12:53 +08:00
