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 |
|
Thomas Harte
|
8819711bc8
|
Threw in the second VIA as a currently clearly incorrect thing.
|
2016-07-05 22:22:09 -04:00 |
|
Thomas Harte
|
93c2bb80a2
|
Improved a comment, added independent C[A/B]2 input mode.
|
2016-07-05 21:11:51 -04:00 |
|
Thomas Harte
|
6c4fa4ec5d
|
Improved commenting and initial state communication.
|
2016-07-05 20:57:31 -04:00 |
|
Thomas Harte
|
1e6d90de17
|
Made an attempt properly to deal with initial bus state.
|
2016-07-05 20:52:33 -04:00 |
|
Thomas Harte
|
c3b7d24293
|
It appears that the attention line is also wired to CB2. So the ball is back in the 6522's court.
|
2016-07-05 19:19:46 -04:00 |
|
Thomas Harte
|
11fc43aa04
|
Made an attempt to allow the 1540 to talk back to the Vic, and to receive interrupts. Also slightly disambiguated debugging logging.
|
2016-07-05 19:12:43 -04:00 |
|
Thomas Harte
|
d16b79073e
|
Further fleshing out: added a serial port for the serial bus.
|
2016-07-05 17:27:02 -04:00 |
|