52 Commits

Author	SHA1	Message	Date
Thomas Harte	ff510f3b84	Explicitly disallows copying of VIAs, and marks the constructor as noexcept.	2017-09-05 21:21:23 -04:00
Thomas Harte	7fd6699e0b	Corrects comment indentation.	2017-09-05 21:15:15 -04:00
Thomas Harte	450712f39c	Improves and corrects 6522 header documentation.	2017-09-04 14:32:34 -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	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	1da24d10fd	Corrected a couple of build errors.	2017-07-27 08:05:14 -04:00
Thomas Harte	8361756dc4	Switched definitively to the works-for-now approach of requiring an explicit opt-in where somebody wants to clock a whole-cycle receiver from a half-cycle clock.	2017-07-27 07:40:02 -04:00
Thomas Harte	75d67ee770	Relocated ClockReceiver.hpp as it's a dependency for parts of the static analyser, and therefore needs to be distinct from the actual emulation parts.	2017-07-25 20:20:55 -04:00
Thomas Harte	efdac2ce8c	The 6522 is now a ClockReceiver.	2017-07-24 22:29:09 -04:00
Thomas Harte	e01f3f06c8	Completed curly bracket movement.	2017-03-26 14:34:47 -04:00
Thomas Harte	36bc558798	Converted all 'Components' to postfix underscores.	2016-12-03 10:51:09 -05:00
Thomas Harte	fa65cc2058	Resolved type conversion error.	2016-11-05 12:57:01 -04:00
Thomas Harte	30c670f8de	Ensured programmatic setting of the timers occurs during phase 2 _instead_ of counting.	2016-11-04 21:30:18 -04:00
Thomas Harte	ad00304e8a	Fixed 6522 countdown.	2016-10-28 21:05:42 -04:00
Thomas Harte	4fab794747	Added a direct-to-two-cycles emulation path for 6522 owners.	2016-10-27 21:13:25 -04:00
Thomas Harte	2eda0b3c86	Attempted to simplify the logic behind the most common 6522 usage.	2016-10-27 21:06:31 -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	11cd541786	Fixed accidental indentation.	2016-07-10 08:05:05 -04:00
Thomas Harte	c0ab45a73d	Disabled a bunch of the caveman debug logging.	2016-07-09 22:29:11 -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	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	8819711bc8	Threw in the second VIA as a currently clearly incorrect thing.	2016-07-05 22:22:09 -04:00
Thomas Harte	602e7f01c7	Control lines seem to have evolved to pure push.	2016-07-05 21:15:29 -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	1bb109a23b	Made a quick attempt at basic C[A/B]2 interrupts.	2016-07-05 20:39:15 -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	97751a9d86	Took the preliminary steps necessary to wire up a serial port.	2016-07-05 10:55:47 -04:00
Thomas Harte	82b0bc9b58	Discovered that this is another meaningful usage of using.	2016-07-04 19:10:10 -04:00
Thomas Harte	7fa010a463	Attempted to add support for the most basic of control line output, and slightly to optimise the Vic.	2016-07-01 19:01:22 -04:00
Thomas Harte	69d78dfdb3	Removed logging.	2016-06-26 21:36:26 -04:00
Thomas Harte	843d1fdca7	Added some extra logging while trying to determine what's going on; added interrupt clearing for the control lines.	2016-06-26 21:30:06 -04:00
Thomas Harte	c306d705e1	Made a quick first attempt at all-the-way-through tape wiring for the Vic.	2016-06-26 19:43:09 -04:00
Thomas Harte	37ba42a52f	Factored out the stuff of playing a tape, started basic sketch of the Vic-related classes.	2016-06-26 19:03:57 -04:00
Thomas Harte	066db59773	Made a hasty attempt to implement CA1 and CB1 input as a potential source of interrupts.	2016-06-26 16:32:27 -04:00
Thomas Harte	d5e50f5ea0	Got a bit more explicit about how ports are identified on the 6522.	2016-06-26 12:30:01 -04:00
Thomas Harte	65413f078c	Factored out the 6532, eventually to make it testable.	2016-06-19 18:57:40 -04:00
Thomas Harte	ce2f5515c0	Made some minor documentation improvements, killed 6522.cpp as the 6522 is going to be a template only, attempting to promote good inlining behaviour.	2016-06-19 18:11:37 -04:00
Thomas Harte	f4915c5ad6	Fixed test and added basic implementation of data direction.	2016-06-18 17:17:03 -04:00
Thomas Harte	5d26cd85a3	Wrote test case for what appears to be correct timer behaviour if those were acting in isolation. Ensured implementation matches test case.	2016-06-18 14:30:23 -04:00
Thomas Harte	394902f409	Switched to clocking the 6522 by the half-cycle. Very trivial test now passes.	2016-06-18 13:57:10 -04:00
Thomas Harte	595791cee0	Made the base 6522 class more abstract: you must now opt-in if you want the IRQ line to be sent to a delegate.	2016-06-18 08:51:18 -04:00
Thomas Harte	d1731b1d26	Hacked my 6522 to work. Mistake is in not returning output as input when appropriate — i.e. that I'm ignoring data direction. Also fixed K and L keys.	2016-06-11 13:06:01 -04:00
Thomas Harte	7a241b5ef5	Added just enough hopefully to allow implementation of the keyboard-input VIA.	2016-06-11 11:34:39 -04:00
Thomas Harte	de84758862	This is how flags writes are supposed to work, it seems.	2016-06-11 07:58:32 -04:00
Thomas Harte	1054793fd7	Fixed interrupt enable register. This makes a lot more sense!	2016-06-11 07:57:04 -04:00
Thomas Harte	82a3c4964b	Decided to keep the internal copy of the interrupt enable the other way around. Reduced delegate noise.	2016-06-11 07:49:07 -04:00
Thomas Harte	a71259dec3	Gave the 6522 a full and grouped register set.	2016-06-11 07:12:55 -04:00
Thomas Harte	f3b1d7de82	... and that's a flashing cursor. Keyboard input next!	2016-06-09 22:37:59 -04:00
Thomas Harte	e99055bedb	Attempted switching back to a square wave for the composite video and otherwise implementing what's necessary to get to that flashing cursor — the 6560 returns its scan line and the timing bits of the 6522 are appearing.	2016-06-08 22:15:24 -04:00
Thomas Harte	581eace478	Increased logging slightly, ensured all of colour RAM can be read, slightly improved the 2600 pixel decoder.	2016-06-07 22:01:14 -04:00