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
3b12fca417
Corrects non-recurring-pattern adaptation bug: the 'SerialPortVIA' should keep a reference to its VIA, not a copy of it.
2017-09-05 21:19:56 -04:00
Thomas Harte
6547102511
Attempts better to hide C1540 implementation details from the reader.
...
In this case not from the compiler, as it's desireable to keep `run_for` as a non-virtual call, and therefore everything else comes alone for the ride.
2017-09-04 20:58:00 -04:00
Thomas Harte
24b3faa427
Deconstitutes the 6522 into component parts, templated and non-templated.
...
Adjusts the Oric, Vic-20 and C-1540 accordingly, albeit with the quickest possible solutions.
2017-09-04 14:26:04 -04:00
Thomas Harte
ee71be0e7e
Added the option not to include ready line support in the 6502 core, and took advantage of it in the Electron, Oric and Vic-20 implementations. Also tagged those as forceinline and/or override final where applicable.
2017-08-21 21:56:42 -04:00
Thomas Harte
42b5b66305
Remove the 6502's use of runtime polymorphism in favour of ordinary templating.
2017-08-16 11:56:52 -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
279c369a1f
Switched to Cycles as the result from the 6502 perform_bus_operation, helping slightly to clarify what you're intended to return and reducing type jumping within the 6502 implementation.
2017-07-25 22:21:09 -04:00
Thomas Harte
9435c1e12a
The 1540 is now a ClockReceiver.
2017-07-24 22:32:41 -04:00
Thomas Harte
efdac2ce8c
The 6522 is now a ClockReceiver.
2017-07-24 22:29:09 -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
83628b285b
Experimentally turned the 6502 into a clock receiver. No problem encountered.
2017-07-22 21:52:21 -04:00
Thomas Harte
f931cd582d
Switched to use of std::vector in those few remaining places where I was still using a unique_ptr to a native type and newing for myself. So, some of my earliest bits of code.
2017-07-16 13:54:07 -04:00
Thomas Harte
0808e9b6fb
Pulled the 6502 into a CPU namespace, making it an instance of something that has micro-opcodes and schedules them, and factoring out the formulation of a register pair.
2017-05-14 22:08:15 -04:00
Thomas Harte
e01f3f06c8
Completed curly bracket movement.
2017-03-26 14:34:47 -04:00
Thomas Harte
063a62372f
The Commodore serial bus and C1540 are now postfix underscorers.
2016-12-03 13:14:03 -05:00
Thomas Harte
4fab794747
Added a direct-to-two-cycles emulation path for 6522 owners.
2016-10-27 21:13:25 -04:00
Thomas Harte
6292ac5b26
Yet more .hpp clean(s)ing.
2016-10-20 21:15:21 -04:00
Thomas Harte
572d5587d9
Made a first stab at enabling multi-disk machines and thereby obeying (some of) the Plus 3's status register.
2016-09-25 21:24:16 -04:00
Thomas Harte
9bbcbd1001
Renamed class, intending to turn a Disk::Drive into literally just that, and have a thing with a PLL that consumes events be a Controller.
2016-09-25 20:05:56 -04:00
Thomas Harte
56c0d70c1f
Gave disks their own namespace.
2016-08-27 17:15:09 -04:00
Thomas Harte
d832e5e10d
Reduced 1540 PLL to running at 4Mhz. Which is possibly correct (?) Made minor change to avoid divide if possible.
2016-08-02 21:28:50 -04:00
Thomas Harte
bc10b3ee9a
It appears the problem is as simple as sectors being counted from zero.
2016-08-01 10:08:38 -04:00
Thomas Harte
f5e4ea3351
Some minor tidying, lots more of the caveman stuff as I try to determine what I'm doing wrong.
2016-08-01 09:43:08 -04:00
Thomas Harte
18744cd98b
Slightly updated comments, switched to 1540 ROM so as very slightly to improve loading time.
2016-08-01 04:37:30 -04:00
Thomas Harte
b43a7381ae
Fixed framing and first-byte-after-sync signalling. Hacked together as parts of it are, loading now appears to work!
2016-08-01 04:25:11 -04:00
Thomas Harte
41893b5ef6
Put in the absolute minimum logic for drive motor emulation. Drive appears to be attempting head steps.
2016-07-31 19:38:51 -04:00
Thomas Harte
740ea0b7e2
Added overflow-flag setting logic and ensured disk ROM gets through regardless of ROM/disk installation order.
2016-07-31 19:33:18 -04:00
Thomas Harte
0945049cd3
Made attempt to connect sync detect and then apply appropriate windowing, posting bytes to the appropriate place.
2016-07-31 18:29:44 -04:00
Thomas Harte
198fbbedc7
Reeled back all appropriate pieces of caveman debugging.
2016-07-31 13:42:34 -04:00
Thomas Harte
2332f72875
Formalised clock-rate multiplication within disk drives, discovered that the stepper didn't have ideal behaviour for my timed event loop and hence nailed down the semantics a ilttle more.
...
(obiter: the 1540 now appears to discern the correct sequence of bits. Framing is off in my test printfs but that's neither here nor there).
2016-07-31 13:32:30 -04:00
Thomas Harte
8f62211f5e
Wired up the 1540 as a PLL delegate. Which prima facie means it should start receiving a bit stream. Except that I clearly have something in the timing way off — either my flux transitions are far too short or I need to significantly increase the clock rate on the PLL.
2016-07-29 12:08:18 -04:00
Thomas Harte
89a1881fef
Started turning the 1540 into an actual disk drive.
2016-07-29 11:03:09 -04:00
Thomas Harte
ada2f073e0
Completed handing of the disk all the way to the 1540.
2016-07-10 16:24:46 -04:00
Thomas Harte
824d9ea92b
Added further comments.
2016-07-10 08:01:16 -04:00
Thomas Harte
d8334edf4a
Started trying to clean up, including commuting the C1540 source file name to match its class name but mainly by adding documentation.
2016-07-10 07:46:20 -04:00
Thomas Harte
c0ab45a73d
Disabled a bunch of the caveman debug logging.
2016-07-09 22:29:11 -04:00
Thomas Harte
f589d639db
Okay, so it seems that sync also works the other way around.
2016-07-09 22:25:44 -04:00
Thomas Harte
693c8b2438
After all that, it seems likely that inputs just aren't inverted for the Vic.
2016-07-09 20:03:38 -04:00
Thomas Harte
656cd211d7
Was transmitting bit levels backwards (probably?); 1540 now acknowledges byte received.
2016-07-09 18:06:49 -04:00
Thomas Harte
7cc4bf3fe7
Hit and hope is getting me nowhere. Time to unit test this thing.
2016-07-09 15:40:25 -04:00
Thomas Harte
8827597363
Messier and messier, but I've at least attempted to implement hardware attention acknowledge.
2016-07-08 19:00:39 -04:00
Thomas Harte
9a08ef61cb
Still fumbling in the margins: made an effort not to imply that the 1540 is forever reading syncs.
2016-07-07 22:13:18 -04:00
Thomas Harte
199c0e27e0
Mostly just random guesses now, to be honest. It's approaching the end of my window for the morning.
2016-07-07 07:16:36 -04:00
Thomas Harte
c9479f923b
The inversion of truth was clearly just a problematic API. Got explicit. LineLevel might need to become more pervasive.
2016-07-07 06:44:13 -04:00
Thomas Harte
dcb86a027a
Okay, so the 1540 doesn't toggle the actual attention line. I don't know what it does yet but this helps.
2016-07-06 22:31:14 -04:00
Thomas Harte
1baf21827c
Since the ROM is well disassembled, let's actually try to be a 1541 first.
2016-07-06 22:17:32 -04:00
Thomas Harte
f64cd8cfcb
Quick fixes properly to declare the DriveVIA, to ensure its interrupts take effect, and to wire ATN IN to CA1 rather than CB2.
2016-07-06 20:22:46 -04:00
Thomas Harte
428fcdb978
Centralised and improved serial logging.
2016-07-06 07:46:21 -04:00
