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285 Commits

Author SHA1 Message Date
Thomas Harte
3862fdb44c Simplifies initialisation procedure for all machines. 
With the side effect of allowing every machine to try to load only the ROMs that it needs.
 2018-07-10 20:00:46 -04:00
Thomas Harte
c97c5fa03a [Re-]recalibrates CRT retrace period and affected view windows. 
In the hope of moving the CPC closer to the real CTM visible area.
 2018-07-05 22:07:18 -04:00
Thomas Harte
6812a001d8 Teaches the Oric to apply a lighter Disk II touch when possible. 2018-05-28 18:20:43 -04:00
Thomas Harte
928aab13dc Introduces more granular clocking announcements to the Disk II. 
As well as making it accept the clock rate it'll actually receive, to supply to the drives, so that they spin at the proper speed.
 2018-05-28 17:19:29 -04:00
Thomas Harte
db8d8d8404 Commutes Sleeper to ClockingHint::Source, making state more granular. 2018-05-27 23:17:06 -04:00
Thomas Harte
7c3dd55e5c Corrects typo and improves exposition. 2018-05-24 18:57:35 -04:00
Thomas Harte
1b43381be0 Corrects meaning of the Microdisc's paging control. 2018-05-24 18:53:02 -04:00
Thomas Harte
e482929da8 Enhances the Disk II's ability to sleep. 
Also enables Disk II sleep observation in the Oric.
 2018-05-19 23:15:28 -04:00
Thomas Harte
7b7beb13a3 Eliminates the fiction of setting and getting registers. 
The Disk II seems lower level than that; it will read the data bus whenever it likes, it is the programmer's responsibility to keep up with that. It also reserves the right not to load the bus regardless of whether it receives a read or write access.
 2018-05-17 21:39:11 -04:00
Thomas Harte
ad9b0cd4e3 Eliminates all endashes. 2018-05-13 15:43:03 -04:00
Thomas Harte
5d6b5d9f10 Eliminates all emdashes in cross-platform code. 2018-05-13 15:34:31 -04:00
Thomas Harte
0b771ce61a Removes all instances of the copyright symbol. 2018-05-13 15:19:52 -04:00
Thomas Harte
2252c29495 Switches the Oric to string insertion at the time of consumption. 
To avoid issues around keyboard scanning being decoupled from consumption via IRQ, but not buffered. Keys pressed while BASIC is otherwise busy are just lost.
 2018-05-13 14:02:46 -04:00
Thomas Harte
39c0bc6c47 Factors string serialisation with \n\r conversion out of the Apple II and reuses it with the Oric. 2018-05-13 13:57:19 -04:00
Thomas Harte
d0fd4dd4db The MSX is now an activity source. 
Completing the set.
 2018-05-12 17:32:53 -04:00
Thomas Harte
3ba6b6f1ee Makes the Oric an event source. 2018-05-11 23:05:36 -04:00
Thomas Harte
312171fa59 Pulls out a couple of repeating constants. 2018-05-09 20:28:25 -04:00
Thomas Harte
c3a2f7717b Makes attempt to implement support for the Pravetz 8D + 8DOS. 
i.e. the Disk II wired up to the Oric, with some ROM swaps.
 2018-05-08 22:05:43 -04:00
Thomas Harte
f4097290c2 Made various corrections following a quick for-loop constness audit. 2018-04-30 22:23:57 -04:00
Thomas Harte
e92e06a5f4 Doubled down on the ROMMachine::ROMFetcher typedef. 2018-04-23 20:20:14 -07:00
Thomas Harte
1c605d58e3 Removes the CRT requirement for an integral relationship between cycles and samples. 2018-04-16 20:00:56 -04:00
Thomas Harte
079dc671e1 Rationalises per-machine static analyser call pattern, and adds Apple II as an option. 2018-04-14 12:12:12 -04:00
Thomas Harte
36e0cb29c0 Ensures proper propagation of video choice through the Oric. 2018-04-04 19:14:42 -04:00
Thomas Harte
69f520428d Makes a first, ugly attempt at a 'new machine' dialogue for the Mac. 
Which has implied getting much more specific about MSX disk drive attachment, and has prompted an excuse to offer the ZX80 with the ZX81 ROM.
 2018-04-02 22:42:41 -04:00
Thomas Harte
33084899d0 Provides s-video as a command-line option. 2018-03-31 22:14:34 -04:00
Thomas Harte
33281b9d89 Introduces S-Video as a video signal type at the interface level. 2018-03-30 10:25:41 -04:00
Thomas Harte
a301964bd0 Ensures all audio queues are fully merged before machine destruction. 
Thereby avoids a race condition.
 2018-03-22 21:59:19 -04:00
Thomas Harte
89bec2919f Encapsulates machine configuration properties for all remaining platforms. 2018-03-09 16:07:29 -05:00
Thomas Harte
78eaecb29e Provides the proper framework for encapsulation of analyser target specifics. 
... while making them a safe container for objects too. Uses the ZX80/81 as the pilot platform.
 2018-03-09 15:36:11 -05:00
Thomas Harte
6b1eef572b Eliminates diamond inheritance of KeyboardMachine::Machine by typers. 
Specifically by pulling the key action stuff into a purely abstract class [/interface]. Takes the opportunity to unpublish a bunch of machine details.
 2018-03-09 15:19:02 -05:00
Thomas Harte
43b682a5af Adds multiple target versions of all the DynamicMachine-vended types. 2018-02-09 16:31:05 -05:00
Thomas Harte
21efb32b6f Integrates the static and nascent dynamic analyser namespaces. 2018-01-24 21:48:44 -05:00
Thomas Harte
d5b1a9d918 Moves the typer functionality behind a functionality-based naming scheme, eliminates its C-style memory management. 2017-12-29 15:26:03 -05:00
Thomas Harte
76af0228dd Corrects longstanding survival of camel case in the analyser's loadingCommand. 2017-12-29 15:15:29 -05:00
Thomas Harte
2dc1d4443e Separates LowpassFilter and SampleSource. 2017-12-18 21:39:23 -05:00
Thomas Harte
ac80d10cd8 Separates the component parts of running an audio stream: task deferral, filtering and generation. 
Walking towards improving opportunities for composition.
 2017-12-17 21:26:06 -05:00
Thomas Harte
a46a37fba9 Ensures all vectors loaded from disk are the expected size. 2017-11-24 22:22:32 -05:00
Thomas Harte
a8ac51da73 Eliminates the Oric's non-reflective inputs for selections, and the Oric-specific ROM setter. 2017-11-24 16:59:00 -05:00
Thomas Harte
d6192b8c58 Ensures Oric video output starts up and changes validly. 2017-11-23 16:19:41 -05:00
Thomas Harte
7b25b03cd5 Formally standardises machine options and introduces a --help option for the SDL target. 2017-11-20 21:55:32 -05:00
Thomas Harte
82ad0354c4 Adds configuration options to the Vic-20, Oric and ZX80/81. 2017-11-18 19:48:10 -05:00
Thomas Harte
c827d14d97 Corrects various GCC warnings across the 6560, CPC, TIA, Oric video and elsewhere. 2017-11-12 17:17:27 -05:00
Thomas Harte
2e15fab651 Doubles down on <cX> over <X.h> for C includes, and usage of the namespace for those types and functions. 2017-11-11 15:28:40 -05:00
Thomas Harte
d9e56711ce Corrects order-of-initialisation errors in the Amstrad CPC, Vic-20, Oric, Commodore File, MFM disk controller, UEF and Commodore tape parser. 2017-11-10 22:47:10 -05:00
Thomas Harte
d60692b6fd Corrects order of initialisation for the Typer and Oric video. 2017-11-10 22:35:05 -05:00
Thomas Harte
4cbc87a17d Corrects out-of-order initialisations for the 1770, Atari 2600 joystick, Pitfall II bus extender, Microdisc and 6502. 2017-11-10 22:20:44 -05:00
Thomas Harte
ddcdd07dd0 Modifies the Vic-20 and C1540 to bring them into the realm of self-ROM fetching. 
Hence enables Vic-20 support within kiosk mode as currently drafted.
 2017-11-07 21:19:51 -05:00
Thomas Harte
35da3edf60 Implements install_roms on the Electron, Oric and ZX80/81. 2017-11-06 22:14:15 -05:00
Thomas Harte
c13f8e5390 Corrects a couple of cast conversion errors. 2017-10-21 22:42:19 -04:00
Thomas Harte
ad9df4bb90 Commutes uint8_t *, uint16_t *, uint32_t *, size_t, off_t and long to functional-style casts. 2017-10-21 22:30:15 -04:00
Thomas Harte
e983854e71 Converts all uint8_t and uint16_t casts to the functional style. 2017-10-21 21:50:53 -04:00
Thomas Harte
5e3e91373a Switches all unsigned int and double casts to functional style. 2017-10-21 19:49:04 -04:00
Thomas Harte
9e0907ee76 Completes clean-up of post-formalisation per-machine keyboard code. 
At least for now. Standardising on how column + row is encoded might be helpful.
 2017-10-21 10:52:35 -04:00
Thomas Harte
9ad4025138 Relocates things that were in Machines/ for machine usage. 
Leaving only those things intended to be visible interface.
 2017-10-21 10:30:02 -04:00
Thomas Harte
78ee46270b Transfers possession of keyboard mappings from the Mac side over to individual machines. 
Specifically by establishing an intermediate representation of a useful mix between the American and British IBM and Mac keyboard layouts, and routing through that.
 2017-10-12 22:25:02 -04:00
Thomas Harte
97a2be71e3 Introduces flush_tracks to Drive, while switching its interface to using Track::Address and adjusting associated integer types. 2017-10-06 21:45:12 -04:00
Thomas Harte
da082673d7 Drives now have a finite number of heads. 
The Amstrad volunteers itself to be single sided. Everything else stays as it was.
 2017-09-15 21:18:36 -04:00
Thomas Harte
42616da7ff Adjusts the Oric Microdisc to propagate motor control more widely. 2017-09-11 22:15:54 -04:00
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
a42ca290cb Reformulates the Oric more cleanly into the modern world. 
Specifically: now that the implementation is contained within the CPP file, there's no need to embed the keyboard, tape player and VIA port handler as private classes. Also the pain of additional syntax is reduced, so the keyboard has been bumped up to a fully data-hiding class. I've also transferred overall ownership of the tape player, AY and keyboard up to the Oric itself, with the VIA merely being wired to them, and added a whole bunch of extra documentation.
 2017-09-04 18:22:14 -04:00
Thomas Harte
da09098e49 Updates clipped area per latest CRT response to vertical sync. 2017-09-04 17:51:02 -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
f68565a33f Split the static analyser functionality so that it's possible just to ask for the set of media implied by a particular file. Extended ConfigurationTarget so that media alone can be pushed to a machine. 2017-08-17 10:48:29 -04:00
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
148591b7f2 Hid most of the Oric innards, and corrected a potential multi-thread access error emanating from the Mac side of the world. 2017-08-16 14:35:53 -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
3947347d88 Introduces active input handling for the AY and uses it in the CPC to give proper, active keyboard input, rather than push-on-select, which was only ever a temporary hack. Also maps a few more keys for the Amstrad. 2017-08-15 22:47:17 -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
e6854ff8db Corrected typo: the input to an AY is BDIR, not BCDIR. 2017-08-01 17:06:57 -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
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
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
c1527cc9e2 Reduced back-and-forth between Cycles and ints within the Oric. 2017-07-24 22:46:31 -04:00
Thomas Harte
efdac2ce8c The 6522 is now a ClockReceiver. 2017-07-24 22:29:09 -04:00
Thomas Harte
55ecb0c022 Converted the Microdisc into a ClockReceiver. 2017-07-24 21:51:13 -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
b82bef95f3 Decided to follow through on Cycles and HalfCycles as complete integer-alikes. Which means giving them the interesting range of operators. Also killed the implicit conversion to int as likely to lead to type confusion. 2017-07-24 20:10:05 -04:00
Thomas Harte
6369138bd1 Converted the Oric's video output into a ClockReceiver. 2017-07-22 23:11:30 -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
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
52d9ddf9e5 Gave the binary tape player a more logical assignment of wave level to output level. Which miraculously appears to have been the issue with the ZX80/81 tape loading — the inconsistency of silences seems to have been the issue. 2017-06-21 22:13:24 -04:00
Thomas Harte
2562306802 Merge branch 'master' into Z80 2017-05-16 21:05:00 -04:00
Thomas Harte
a5075d9eb5 Formalised the reasoning behind the colour phase fix-up and made it an opt-in per-caller value. Only the Oric currently needs to opt in. 2017-05-16 20:31:39 -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
90151e2094 Fixed to ensure a known initial control register value, which has taken effect. 2016-12-28 18:49:32 -05:00
Thomas Harte
a568172758 Made steps towards proper CRC generation. Am currently comparing against Oric disk images, as — amongst other things — they include precomputed CRCs. 2016-12-28 18:29:37 -05:00
Thomas Harte
e62be03673 Removed endianness assumption. 2016-12-10 19:10:33 -05:00
Thomas Harte
a5683dfb21 Removed now untrue comment. 2016-12-10 15:19:48 -05:00
Thomas Harte
0e71802b92 Reduced Oric video to single nibble constants. Removed attempt at asynchronous flush as no longer required. 2016-12-10 14:17:46 -05:00
Thomas Harte
580f347727 Fixed Oric SCART mode by having it change what it's giving to the CRT based on which shader it knows will be active. 2016-12-10 13:55:56 -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
Thomas Harte
6cdd41e5a9 Added direct use of the colour ROM, uploading 16 bits per pixel to contain the entire ROM composite wave. 2016-12-09 22:17:10 -05:00
Thomas Harte
3b5962b171 This is an initial attempt at using the actual Oric colour ROM values for composite video generation. 2016-12-09 20:01:27 -05:00
Thomas Harte
c304db0f5a Deintegrated the busy flag and the interrupt request line, as the latter is reset by status reads. Which also means I can start reporting the WD INTRQ line status directly from the Microdisc. That appears to be correct, rather than honouring the Microdisc IRQ select there. 2016-12-06 21:16:29 -05:00
Thomas Harte
2003b514aa Switched the typer to postfix underscores. 2016-12-03 10:55:50 -05:00
Thomas Harte
81ee834530 As well as a bunch of logging, reinstated rotation position preservation across tracks. 2016-12-02 18:36:47 -05:00
Thomas Harte
93c573bfa9 Implemented missing status bits (other than the index hole), and a head loading delay for the Microdisc. 2016-12-01 21:13:16 -05:00
Thomas Harte
442986ee2c Introduced a head loading path for 1793 machines. 2016-12-01 20:12:22 -05:00
Thomas Harte
82899f2f47 Ensured flag setting is atomic, removed duplication of interrupt request versus busy, found better names for the personality testers, unified delegate protocol. 2016-12-01 07:41:52 -05:00
Thomas Harte
9b6c5e814a Now that it can be more explicit, this should admit that it's '93-based, not '73. 2016-11-28 16:22:35 -05:00
Thomas Harte
2f459690d4 It would appear the 1770 and 1773 actually differ in relation to the (non-sensical) ability not to spin-up for a Type 2, and whether a side compare can occur. So the WD1770 class now requires a personality to be specified. Which it singly fails to honour. 2016-11-26 23:29:30 +08:00
Thomas Harte
e9d6566e9c Of course, changing the IRQ enable may immediately change the IRQ line. Signal if so. 2016-11-26 09:35:44 +08:00
Thomas Harte
73d30b9c00 Corrected typo. 2016-11-25 21:30:45 +08:00
Thomas Harte
12956901d6 Filled in some register mirrors. 2016-11-25 21:28:11 +08:00
Thomas Harte
54246c8f1a Interrupt enabling works the other way around I think, and both registers with only one bit defined should probably return '1' in all other places? 2016-11-25 21:24:59 +08:00
Thomas Harte
8be81f6ebd Supplied disks are given to the Microdisc. 2016-11-25 20:53:38 +08:00
Thomas Harte
4af678d2ed Gave the Microdisc a clock signal, added just enough of force interrupt to avoid a spurious belief that a type 3 command has started. 2016-11-25 20:51:39 +08:00
Thomas Harte
5c019ad1c0 Okay, so it looks like both ROM paging flags are the opposite of what I previously had. 2016-11-25 20:42:40 +08:00
Thomas Harte
5be45c6c50 Ensured proper default behaviour. 2016-11-25 20:30:27 +08:00
Thomas Harte
d33f3b9224 This is the broad strokes effort at enabling Microdisc emulation. 2016-11-25 20:15:48 +08:00
Thomas Harte
7c2d9f3752 This seems to be right, per http://wiki.defence-force.org/doku.php?id=oric:hardware:floppy_disk_controller_wd1793 2016-11-22 22:35:43 +08:00
Thomas Harte
5ebc1c63ff Switched video to postfix underscores, for consistency. 2016-11-22 22:28:45 +08:00
Thomas Harte
707763f80b Added Microdisc storage to the Oric class, switching all instance storage to postfix underscore while I'm here. 2016-11-22 22:22:00 +08:00
Thomas Harte
0c3644f350 Made a second parse at logic. We'll see. 2016-11-22 22:12:32 +08:00
Thomas Harte
03843bf934 Unified delegates. Let's keep it easy for the caller. 2016-11-22 22:11:11 +08:00
Thomas Harte
13a608a8c2 Added what may be correct paging logic. 2016-11-22 22:09:52 +08:00
Thomas Harte
363db695e8 Started implementation of the Microdisc selection logic. 2016-11-22 08:12:53 +08:00
Thomas Harte
ea33a28695 Any Oric-format disks that are inserted now make it all the way to the Oric, along with a request to emulate the Microdisc. It has received a copy of the ROM. The ball is entirely in its court now. 2016-11-21 20:59:25 +08:00
Thomas Harte
8b40ae03ca Extended analysis to spot IRQ and NMI vector changes, for titles that simply adjust those then exit. Ensured Oric emulator can type and load quickly on an Oric 1 just as well as on an Atmos. 2016-11-15 11:05:53 +08:00
Thomas Harte
e2cdfae8a7 The emulated Oric now has access to both versions of the BASIC ROM and picks between them based on the static analyser's recommendation. 2016-11-15 10:39:16 +08:00
Thomas Harte
9c550c594a Moved audio work back into its own thread, but this time it queues up an all happens only upon a flush. Hopefully to resolve synchronisation cost concerns. 2016-11-09 21:17:50 -05:00
Thomas Harte
64827931bf Switched the Oric implementation simply to rely upon the Storage-level tape parser. So now there's only one, authoritative one of those. 2016-11-07 21:57:58 -05:00
Thomas Harte
45b169f341 Made a few mapping fixes, clarified where the default reset code lives, ensured the Oric and Vic clear their keys when the typer ends. 2016-11-05 15:28:03 -04:00
Thomas Harte
338904fffe Made similar cleanings of the Electron and Vic. 2016-11-05 15:07:57 -04:00
Thomas Harte
9fb9d92437 Made the typer much more able to help out, and thereby tidied and separated the Oric's typer. 2016-11-05 14:47:09 -04:00
Thomas Harte
626e719fab Added sanity checks on loading quickly. 2016-11-03 22:50:49 -04:00
Thomas Harte
a7e4c0c3b5 Switched to a ROM trap for typing. 2016-11-03 22:21:05 -04:00
Thomas Harte
8c70dc5891 Implemented typer for the Oric, and I'm starting to think the code is a bit too repetitious. Refactoring will be forthcoming. Added CLOAD"" as the loading command for all Oric software. 2016-11-03 22:14:40 -04:00
Thomas Harte
9c2df231ce Made fast loading optional. 2016-11-03 07:59:30 -04:00
Thomas Harte
e9f1a6a79d This appears to be it. The secret? Don't worry about the stop bits. They're just processing time. Latch onto the next start. 2016-11-03 07:34:48 -04:00
Thomas Harte
827a919368 This is an initial attempt at reading actual tape data. It loses sync though. 2016-11-02 22:30:53 -04:00
Thomas Harte
419629ee6e Completed proof of theory for fast loading. It's just an around-the-back direct-to-file hack for now though. 2016-11-02 21:09:49 -04:00
Thomas Harte
bb58caff52 Merge branch 'master' into FastOricTape 2016-10-31 22:11:03 -04:00
Thomas Harte
21604376e6 Reintroduced clocking of the AY and boxed in the range of the master divider a little further. 2016-10-30 22:51:08 -04:00
Thomas Harte
33512988fb Added a basic cycle skipper plus some notes. 2016-10-30 22:39:47 -04:00
Thomas Harte
b04ba41951 Moved code out of header. 2016-10-30 20:16:58 -04:00
Thomas Harte
3b52ab0d37 Cut some dead state. 2016-10-30 20:16:52 -04:00
Thomas Harte
58f888c6ad Limited CRT calls. 2016-10-30 16:21:20 -04:00
Thomas Harte
1ff9b474bf Made an attempt to make execution flow through this loop more straightforward for a branch predictor. 2016-10-30 15:30:39 -04:00
Thomas Harte
4fab794747 Added a direct-to-two-cycles emulation path for 6522 owners. 2016-10-27 21:13:25 -04:00