41 Commits

Author	SHA1	Message	Date
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	d5e50f5ea0	Got a bit more explicit about how ports are identified on the 6522.	2016-06-26 12:30:01 -04:00
Thomas Harte	8d9eb30d82	So it sounds like the user-port VIA might actually be connected to NMI?	2016-06-25 16:31:35 -04:00
Thomas Harte	8741be5c84	Made the slightest possible effort to get TAPs opened and passed to the VIC.	2016-06-25 16:24:52 -04:00
Thomas Harte	2bd71e7e9b	.reset is the more normal way to reassign a unique_ptr.	2016-06-23 20:52:44 -04:00
Thomas Harte	e05003c176	Discovered that the VIC and the VIAs can be simultaneously selected. Adjusted bus appropriately.	2016-06-22 17:34:42 -04:00
Thomas Harte	ef3ed1f436	Implemented full paste ability for any machine that is a typer.	2016-06-19 16:35:04 -04:00
Thomas Harte	3fc472d5cb	Expanded typing to include phase for machines that need to go through multiple keypresses to reach a certain state, expanded Vic to be able to type most things (still bodged on lowercase though), and to schedule a 'run' if it's supposed to be loading into RAM, spotting that opportunity actually to do so.	2016-06-19 13:46:53 -04:00
Thomas Harte	e7aeed2f03	Established a general pattern for machines that can type things. Started working on the Vic typing itself.	2016-06-19 13:10:52 -04:00
Thomas Harte	f4915c5ad6	Fixed test and added basic implementation of data direction.	2016-06-18 17:17:03 -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	00a9f1bf24	Fixed best-effort updater actually to run, finally moved clock rate announcement into the C++ side of things, started working on a mechanism to allow clock rate to be updated.	2016-06-16 20:39:46 -04:00
Thomas Harte	fdc854c0c2	Fixed tone channels; made an attempt at loading PRGs that are supposed to go into RAM.	2016-06-13 21:49:59 -04:00
Thomas Harte	5fc36b956c	Attempted most basic sketching of a container for Vic audio.	2016-06-13 19:30:52 -04:00
Thomas Harte	4190b42bbb	No need for these to live separately, I think.	2016-06-13 18:27:18 -04:00
Thomas Harte	19b2f46488	Fixed accesses to colour memory.	2016-06-12 11:06:19 -04:00
Thomas Harte	4fec625b19	Minor cleaning, implemented clearAllKeys.	2016-06-12 10:38:21 -04:00
Thomas Harte	167ed9b8bb	Added enough to load a PRG as a ROM.	2016-06-11 14:00:12 -04:00
Thomas Harte	3e8d383615	Improved key map. Possibly enough to type some basic BASIC?	2016-06-11 13:19:59 -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	271de23ee6	Ran on in and introduced a bunch more keys, hopefully to help to diagnose.	2016-06-11 12:26:19 -04:00
Thomas Harte	d7c1f5b18a	Made an attempt at hooking up the '2' and '4' keys. A mostly unsuccessful attempt. 2 does nothing, 4 clears the screen.	2016-06-11 11:50:37 -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	1ed04fae1e	Resolved 6560 addressing.	2016-06-10 18:12:21 -04:00
Thomas Harte	f3b1d7de82	... and that's a flashing cursor. Keyboard input next!	2016-06-09 22:37:59 -04:00
Thomas Harte	30b7db3979	Attempted a square wave, made the Vic itself responsible for address manipulation re:the 6560.	2016-06-09 22:05:17 -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
Thomas Harte	26ab96868a	Decided to turn the 6522 into a template, since it's a per-cycle thing with variable behaviour. Added appropriate memory map callouts to hit the two in the Vic. Though they don't yet do anything.	2016-06-07 19:15:18 -04:00
Thomas Harte	c7c55528e2	Realised that registers appear also to be readable.	2016-06-06 20:29:39 -04:00
Thomas Harte	64539a2b24	Advanced to having some characters displayed, even though they're obviously very much incorrect and the display is still rolling.	2016-06-06 07:35:35 -04:00
Thomas Harte	9e9e50edb1	Added guess on how colour memory and the 12-bit bus possibly works.	2016-06-05 16:28:06 -04:00
Thomas Harte	2ab21e7a3c	Switched to a real (unexpanded) memory map, meaning that nonsense is no longer being supplied to the VIC.	2016-06-05 16:00:35 -04:00
Thomas Harte	9566c87532	Added enough to the machine that the 6560 can now produce output if it wishes.	2016-06-05 12:11:12 -04:00
Thomas Harte	b56482607e	Added just enough that the 6502 should now be operating correctly.	2016-06-05 11:44:29 -04:00
Thomas Harte	0b221e773f	Fixed ROM naming and sizes, ensured machines without sound outputs don't end up with an audio queue.	2016-06-05 11:20:05 -04:00
Thomas Harte	f922d38ed2	The Vic now captures the ROMs sent to it and has just enough infrastructure to get to a black screen. Progress!	2016-06-05 10:51:07 -04:00
Thomas Harte	12243c40ad	Kicking the ball a little further down the road, ROMs and PRGs now reach the actual emulated machine.	2016-06-05 09:06:59 -04:00
Thomas Harte	b10a06e700	A CRT is still absent but this moves the ball back into the C++ side's court.	2016-06-04 22:00:50 -04:00
Thomas Harte	404873fe58	Started sketching out infrastructure for Vic-20 support.	2016-06-04 21:43:50 -04:00