235 Commits

Author	SHA1	Message	Date
Thomas Harte	75208b0762	Moves the Electron implementation behind a more opaque interface, in line with changes elsewhere.	2017-08-16 15:33:40 -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	bbb17acf3a	Expanded interface so that an external machine caller can request a string be typed without any knowledge of whatever it intends to do re: CharacterMappers. Which is immediately useful in paste functionality.	2017-08-03 11:50:50 -04:00
Thomas Harte	ad3a98387f	Within the Typer framework: hatched out CharacterMapper as a distinct thing from the target for keypresses, better to formalise responsibility but also to make it easy cleanly to sever that stuff into its own little part.	2017-08-03 11:42:31 -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	968d2bb8ba	Brought Typer into the new run_for orthodoxy, making it easier to clock consistently regardless of unit. Which necessitated adding a negative operator for WrappedInts.	2017-07-27 21:53:45 -04:00
Thomas Harte	9ef232157b	Revoked the operator bool() on WrappedInt as providing an indirect means for implicit but incorrect assignment to unwrapped ints. Got explicit about run_for intention and simplified HalfClockReceiver slightly by building a lossy and a flushing conversion to Cycles into HalfCycles. Adapted the all-RAM Z80 properly to return HalfCycles.	2017-07-27 21:38:50 -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	cda223ffc0	Added explicit signedness cast.	2017-07-25 22:49:03 -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	296c7cec05	Adopted flush widely.	2017-07-25 20:42:51 -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	a1e9a54765	Eliminated redundant uses of ClockReceiver and sought to ensure that proper run_fors are inherited all the way down.	2017-07-25 20:09:13 -04:00
Thomas Harte	8d1dacd951	Clean ups along the Electron::Tape line: ensured that the ClockReceiver is opted into only once, and that its run_for propagates all the way along the chain.	2017-07-25 20:01:30 -04:00
Thomas Harte	40339a12e1	Formalised the use of a cycles count with a divider, bringing a few additional plain-int users into the fold.	2017-07-25 07:15:31 -04:00
Thomas Harte	90bf6565d0	Reduced int/Cycle conversions in the Electron and on the Atari 2600, where the current framework makes it possible to do so.	2017-07-24 22:53:13 -04:00
Thomas Harte	a6e377aa57	The Electron's video is now a ClockReceiver.	2017-07-24 22:36:42 -04:00
Thomas Harte	915f587ef1	Updated the Electron's tape class to be a ClockReceiver.	2017-07-24 21:36:30 -04:00
Thomas Harte	b7f88e8f61	Filter is now a ClockReciever, affecting all sound output devices.	2017-07-24 21:29:13 -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	2ff157cf7a	Switched CRTMachine over to use Cycles as an explicit statement of units, and followed through on the effects of that.	2017-07-22 22:17:29 -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	dddb30477b	Used a different inner-loop variable, for clarity.	2017-07-21 21:52:08 -04:00
Thomas Harte	3f609e17b3	Factored out the table-lookup approach to being a typer, and adjusted so as definitely to limit myself to positive offset table lookups.	2017-07-21 21:18:51 -04:00
Thomas Harte	b3861ff755	Reduced copying of Pulses.	2017-07-16 19:49:31 -04:00
Thomas Harte	1d3ae31755	Abstracted the concept of an Acorn shifter away from being a PLLParser. The Acorn tape parser now skips using that class and uses the shifter. The actual Electron also uses the shifter. So the two are completely aligned. Net result: the Electron should successfully load exactly when static analysis was successful.	2017-07-16 19:24:01 -04:00
Thomas Harte	481487f084	Oh yuck, it looks like I've repeated this same test in two different places. Must figure out where to factor it out to. But in the meantime, the emulated Electron has just loaded its first CSW.	2017-07-13 22:39:30 -04:00
Thomas Harte	353c854734	Removed a TODO that is no longer appropriate.	2017-07-09 22:06:50 -04:00
Thomas Harte	eb8a2de5d6	Settled definitively on flush as more communicative than synchronise (and slightly more locale neutral); culled some more duplication from the Z80.	2017-05-15 07:38:59 -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	aff69dbc34	Resolved spurious static analyser issue; screen mode will always be 0–6 but it doesn't know that. Setting a non-zero divider doesn't feel worth worrying about for a cleaner compile.	2017-02-11 13:35:22 -05:00
Thomas Harte	f3d9aec8fc	Fixed Electron's support for automatically booting floppy disks.	2017-01-08 14:47:41 -05:00
Thomas Harte	8cd1575891	Similar fix to that over in Oric land: ensure a known, effective initial value for the Plus 3's control register.	2016-12-28 18:52:36 -05:00
Thomas Harte	4fca30b81f	Made the Plus 3 less chatty, documented invalidate_track.	2016-12-25 21:06:58 -05:00
Thomas Harte	3805e3d17d	Ensured base address is set properly at construction.	2016-12-22 22:46:02 -05:00
Thomas Harte	63107cd492	Tidied, very slightly.	2016-12-15 19:49:25 -05:00
Thomas Harte	a555c5762a	Rearranged code, hopefully into a more logical grouping.	2016-12-15 19:47:04 -05:00
Thomas Harte	4a7ddaf2e9	Added documentation and a quick note to self.	2016-12-15 19:43:04 -05:00
Thomas Harte	f61176cd7d	Reinstituted something of the don't-do-pixel-work-until-an-affecting-write-occurs optimisation.	2016-12-15 19:20:14 -05:00
Thomas Harte	c1c70a767a	Attempted fully to reinstate proper timing.	2016-12-15 18:52:16 -05:00
Thomas Harte	0326316bb8	Reinstated whole-frame counting. Thereby to reinstate proper interrupts.	2016-12-15 18:09:49 -05:00
Thomas Harte	b58b11fc93	Switched to a table-based dispatch of line-by-line actions, primarily to simplify.	2016-12-15 18:07:46 -05:00
Thomas Harte	fd541e1142	An early draft; dealing with the issue that not all cycles are necessarily consumed in a single call. Incomplete; broken. Committing for cross-machine visibility.	2016-12-12 08:01:10 -05:00
Thomas Harte	be7e05e109	Started attempting to move total responsibility for display-related interrupts and RAM timing into the video.	2016-12-11 18:34:49 -05:00
Thomas Harte	c5cf8d9531	Ensured the video subsystem correctly handles requests to run over a frame boundary.	2016-12-11 16:17:51 -05:00
Thomas Harte	52028432e1	Restored some semblance of output.	2016-12-10 22:19:10 -05:00
Thomas Harte	0aae1bd1ef	Fixed calculation of termination cycle.	2016-12-10 21:35:41 -05:00
Thomas Harte	c43e481a33	Started factoring video out of the Electron.	2016-12-10 21:07:52 -05:00
Thomas Harte	a549fd1ecc	Introduced the ability simply to piggy-back off the CRT's natural phase for the colour burst, thereby eliminating a couple of redundant independent attempts in the Oric and Electron.	2016-12-10 13:42:34 -05:00