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1407 Commits

Author SHA1 Message Date
Thomas Harte
da3d65c18f Devolves time to cycle conversion to machines. 
Thereby avoids a whole bunch of complicated machinations that would otherwise have been required of the multimachine.
 2018-03-21 22:18:13 -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
48737a32a7 Introduces formal setting of the output volume to SampleSource. 
Previously every output device was making its own decision. Which is increasingly less sustainable due to the CompoundSource.
 2018-03-09 13:23:18 -05:00
Thomas Harte
03501df9e5
Merge pull request #365 from TomHarte/CartridgeDetermination 
Works towards eliminating the special cases for Atari 2600 ROM handling.
 2018-03-08 18:40:58 -05:00
Thomas Harte
1804ea6849 Ensures the ColecoVision and MSX account for instruction lengths in advance when timing secondary components. 2018-03-07 17:00:18 -05:00
Thomas Harte
c8657e08f4 Merge remote-tracking branch 'origin/master' into CartridgeDetermination 2018-03-07 16:42:16 -05:00
Thomas Harte
9abc020818 Corrects potential ColecoVision SGM AY timing issues. 2018-03-07 16:16:58 -05:00
Thomas Harte
2dade8d353 Introduces ZonX emulation for the ZX81. 2018-03-07 16:16:29 -05:00
Thomas Harte
1100dc6993 Opens up .bin and .rom to all cartridge platforms, and adds a confidence estimate to the Atari 2600. 2018-03-07 14:26:07 -05:00
Thomas Harte
2452641844 Introduces a fast workaround to avert a MultiMachine where it would instantly end. 2018-03-06 19:08:02 -05:00
Thomas Harte
c82af4b814 Introduces get_confidence for the ColecoVision. 
Based almost entirely on joypad accesses for now.
 2018-03-06 19:06:35 -05:00
Thomas Harte
3c5a8d9ff3 Adds Super Game Module support for the ColecoVision. 2018-03-03 13:08:33 -05:00
Thomas Harte
bdfc36427c Implements MegaCart support. 2018-03-02 18:40:01 -05:00
Thomas Harte
59b4c7314d Merge branch 'master' into ColecoVision 2018-03-01 22:01:26 -05:00
Thomas Harte
b05d2b26bf Corrects a counting error in the MSX. 2018-03-01 21:59:51 -05:00
Thomas Harte
86239469e7 Allows SN76489 consumers to apply an additional divider that reduces computation. 2018-03-01 18:51:05 -05:00
Thomas Harte
7890506b16 Gives the SN76489 its proper dividers and personalities. 2018-02-28 22:36:03 -05:00
Thomas Harte
87760297fc Fixes underpumping of SN76489. 
Audio works now. Though I still need properly to confirm who owns dividers in practice. I think probably all division should be within the SN.
 2018-02-27 22:59:29 -05:00
Thomas Harte
d4df101ab6 Makes a first attempt at implementing the SN76489. 2018-02-27 22:25:12 -05:00
Thomas Harte
0ad2676640 Adds a class for the SN76489 and wires it into the ColecoVision. 2018-02-26 22:04:34 -05:00
Thomas Harte
a074ee2071 Possibly fixes ColecoVision input mapping. 
Also provides symbolic input from the Mac.
 2018-02-25 22:47:47 -05:00
Thomas Harte
204d5cc964 Extends JoystickMachine protocol to cover ColecoVision use case. 
Also thereby implements input on the ColecoVision, in theory at least. No input is being fed though, so...
 2018-02-25 19:08:50 -05:00
Thomas Harte
23d15a4d6c The ColecoVision now accepts and loads cartridges. 2018-02-24 18:26:44 -05:00
Thomas Harte
23c47e21de Proceeds the ColecoVision to booting. 2018-02-24 18:14:38 -05:00
Thomas Harte
5530b96446 Wired up a class and analyser for a ColecoVision. 2018-02-23 22:47:15 -05:00
Thomas Harte
270723ae72 Forces the MSX's perform_machine_cycle into the Z80. 2018-02-19 19:54:42 -05:00
Thomas Harte
fc81bfa59b Eliminates tape player call when tape is not playing. 2018-02-19 18:36:31 -05:00
Thomas Harte
3673cfe9be Pulls method call for tape fast loading checks out of inner loop for the Vic, Electron and ZX80/81. 2018-02-19 16:57:24 -05:00
Thomas Harte
b0ab617393 Simplifies inner loop test for MSX fast loading. 2018-02-19 16:24:47 -05:00
Thomas Harte
7b420d56e3 Removed state mirroring in the machine-specific Mac UI classes. 2018-02-14 21:46:50 -05:00
Thomas Harte
ddf1bf3cbf Reintroduces options selection for the Mac. 
For everything except the Vic-20, anyway. That has a somewhat outdated notion of what an options panel should be, corresponding to the work yet to do on its analyser.
 2018-02-12 21:46:21 -05:00
Thomas Harte
23105956d6 Fixes spurious unrecognised miss detection for the ASCII mappers. 2018-02-11 20:51:39 -05:00
Thomas Harte
f02989649c Corrects effect of pc_is_outside_bios. 2018-02-11 20:32:45 -05:00
Thomas Harte
eb39617ad0 Allows cartridges to filter based on the actor talking to them; corrects outstanding_machines access error. 2018-02-10 17:11:16 -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
043fd5d404 Merge branch 'DynamicAnalysis' of github.com:TomHarte/CLK into DynamicAnalysis 2018-02-09 09:12:05 -05:00
Thomas Harte
d63a95983d Adds a couple of hard-stop conditions to the MSX, and respect for hard stops. 2018-02-09 09:10:56 -05:00
Thomas Harte
4cf258f952 Parallelises MultiMachine running, and ensures errors propagate. 2018-02-08 20:33:57 -05:00
Thomas Harte
4e720d57b2 With debugging hooks still on display, makes first attempt at dynamic analysis. 2018-02-01 07:53:52 -05:00
Thomas Harte
c12aaea747 Attempts to get as far as running the MultiMachine. 
In doing so, fixes the long-standing bug that machines that output audio but don't have a listener produce a divide by zero.
 2018-01-30 22:23:06 -05:00
Thomas Harte
ca48497e87 Pulls DynamicMachine out of MachineForTarget and adds MultiConfigurationTarget as a first multiplexer. 2018-01-29 21:49:49 -05:00
Thomas Harte
d493ea4bca Introduces a multimachine to handle multi-target static analyser outputs. 
Non-functional as of yet.
 2018-01-28 22:22:21 -05:00
Thomas Harte
e025674eb2 The MSX analyser is now smart enough not to be definitive when it's uncertain. 
The cartridge type has also migrated to being a property of the cartridge, prefiguring my intention to discard the static analyser union.
 2018-01-25 22:16:46 -05:00
Thomas Harte
f2519f4fd7 Decided to focus on 'confidence' over 'probability'. 
Besides anything else, it individualises the measure. E.g. two targets can each have a confidence of 0.8 without each giving the wrong answer about probability.
 2018-01-25 19:02:16 -05:00
Thomas Harte
66faed4008 Gives MachineForTargets complete responsibility for initial machine state. 2018-01-25 18:28:19 -05:00
Thomas Harte
11abc99ef8 Introduces the extra level of indirection necessary to make Analyser::Static::Target polymorphic. 2018-01-24 22:35:54 -05:00
Thomas Harte
21efb32b6f Integrates the static and nascent dynamic analyser namespaces. 2018-01-24 21:48:44 -05:00
Thomas Harte
d360b2c62d Standardises the static analyser on std::vector and slightly widens passageway to a machine. 
The SDL target would now be fooled by a hypothetical multi-target, the Mac not yet.
 2018-01-23 22:18:16 -05:00
Thomas Harte
6a112edc18 Corrects 16kb ASCII mapper. 
Also increases hit position acceptance for the 8kb ASCII.
 2018-01-22 22:13:16 -05:00
Thomas Harte
8fb4409ebb Adds hasty attempt at dynamic analysis to the MSX ROM handlers. 
Logging for now, for further experimentation.
 2018-01-22 21:50:56 -05:00
Thomas Harte
765c0d4ff8 Allows the Electron to load 8kb ROMs. 2018-01-15 21:27:45 -05:00
Thomas Harte
a5ac8c824e Removes logging and unnecessary get_drive_is_ready. 2018-01-07 21:59:59 -05:00
Thomas Harte
8be6cb827b Implements MSX interrupt/data request reading register. 
The disk ROM now appears to accept on-disk bytes, but still announces an IO failure.
 2018-01-07 20:28:34 -05:00
Thomas Harte
2f59226300 Fixes: DiskROM drive motor control, track_for_sectors' sides. 2018-01-07 20:02:40 -05:00
Thomas Harte
513c067f94 Makes an attempt to rope in the WD1770 for MSX disk ROM emulation. 2018-01-07 19:12:52 -05:00
Thomas Harte
655b971976 Establishes that there is such as a thing as a Konami SCC. 
Creates one, ensures it appears in memory when intended to, lets it handle reads and writes. It currently does nothing.
 2018-01-06 20:15:55 -05:00
Thomas Harte
185cd3c123 Expands and documents MSX::MemoryMap and MSX::ROMSlotHandler. 
Hopefully to cover all intended use cases.
 2018-01-06 15:51:29 -05:00
Thomas Harte
ed564cb810 Implements the main four cartridge banking schemes. 
Slightly proof of concept for now.
 2018-01-04 22:18:18 -05:00
Thomas Harte
c7f8f37822 Ensures typers terminate. 2017-12-30 13:46:30 -05:00
Thomas Harte
769d9dfbb9 Adds missing header. 2017-12-29 18:41:26 -05:00
Thomas Harte
6da8a3e24b Causes the MSX to respond to the appropriate standard configuration options. 2017-12-29 18:36:42 -05:00
Thomas Harte
e349161a53 Rejigs the typing relationship so that use of a typer is not strongly implied by the interface. 
Simultaneously implements typing on the MSX by direct insertion into the key buffer.
 2017-12-29 18:30:46 -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
5fd0a2b9ea Attempts to pull reimplementations of TAPION and TAPIN better into line with originals. 
Also improves whole flow of the fast tape hack that uses them.
 2017-12-28 22:48:04 -05:00
Thomas Harte
11b73a9c0b Adds preliminary, non-error-checking wiring in of MSX parser alternatives to TAPION and TAPIN. 
As both a prototype of the pending fast tape loading, and to provide for exact behaviour comparison.
 2017-12-26 22:31:34 -05:00
Thomas Harte
b9b107ee85 Switches KeyGrave and KeyQuote, correcting a disarrangement. 2017-12-20 21:16:54 -05:00
Thomas Harte
0bb24075b6 Immediate fixes: TSX is seemingly TZX 1.21; the tape motor control works the other way around. 
Input is not yet being recognised.
 2017-12-19 22:17:42 -05:00
Thomas Harte
db6d9b59d0 Attempts to implement TSX support for the MSX. 2017-12-19 21:53:04 -05:00
Thomas Harte
2d892da225 Introduces the MSX keyboard toggle sample source. 
In support of which, it also introduces a means of sample source composition.
 2017-12-19 21:08:10 -05:00
Thomas Harte
d36e9d0b0d Reintroduces cstring.h to a few files that previously got it implicitly. 2017-12-18 21:47:30 -05:00
Thomas Harte
2dc1d4443e Separates LowpassFilter and SampleSource. 2017-12-18 21:39:23 -05:00
Thomas Harte
f8a2459c91 Corrects two lingering adaptation errors in the Vic-20. 2017-12-17 21:43:08 -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
7a52e7d6d2 Provides an empty value for the interrupt cycle. 2017-12-13 22:44:03 -05:00
Thomas Harte
4daea1121b Gives up on C-BIOS for a while, to get to an acceptable merge point. 2017-12-12 21:19:33 -05:00
Thomas Harte
afcdd64d5e Switches to a less easy-to-confuse storage arrangement for MSX memory slots. 2017-12-11 21:09:53 -05:00
Thomas Harte
ec266d6c8e Ensures the AY stops listening to the bus after each read or write. 2017-12-04 19:18:54 -05:00
Thomas Harte
e3a5218e78 Fixes AY and random port input for the MSX. 2017-12-03 22:25:18 -05:00
Thomas Harte
3766bef962 Eliminates some redundant white space. 2017-12-03 14:52:42 -05:00
Thomas Harte
fe7fc6b22e Enables AY output from the MSX. 2017-12-02 16:30:43 -05:00
Thomas Harte
7f8a13a409 Adds bare minimum to get accepted 16- and 32kb cartridges to start on the MSX. 2017-12-02 16:06:04 -05:00
Thomas Harte
5da9cb2957 Introduces most of a keyboard mapping for the MSX. 2017-11-30 19:27:53 -05:00
Thomas Harte
54c845b6e2 Adds just enough logic to make every host key look like '0' to the MSX. 2017-11-29 22:07:30 -05:00
Thomas Harte
f0f149c018 Simplified paging logic. 2017-11-29 20:49:02 -05:00
Thomas Harte
aa4eef41d8 Seeks to introduce MSX interrupts. 2017-11-29 20:31:55 -05:00
Thomas Harte
69ec8a362e Makes an attempt to perform MSX memory paging. 2017-11-28 21:56:15 -05:00
Thomas Harte
d33612def5 Ensures the MSX provides a clock to the VDP. 2017-11-26 20:07:30 -05:00
Thomas Harte
9cb6ca3440 Adds elementary decoding of VDP accesses. 2017-11-26 20:01:11 -05:00
Thomas Harte
e957e40b14 Shifts 8255 logging up into its own port handler. That's probably fine for now. 2017-11-26 18:59:29 -05:00
Thomas Harte
7a8a43a96a Adds just enough of the MSX memory map for the Z80 to appear to try to do useful things. 2017-11-26 18:34:40 -05:00
Thomas Harte
0eb5dd9688 Introduces the fundamentals of bus routing for the MSX. 2017-11-26 16:47:59 -05:00
Thomas Harte
a14b53a9ab Adds a TMS9918 skeleton plus enough in the MSX to get to a blank screen in SDL/kiosk mode. 2017-11-26 13:28:26 -05:00
Thomas Harte
576d554a2c Expands upon the MSX skeleton. 2017-11-25 13:33:51 -05:00
Thomas Harte
68a2895753 Adds enough static analyser to get to the MSX itself as the point of failure in SDL/kiosk mode. 2017-11-25 13:18:24 -05:00
Thomas Harte
f90b3f06aa Merge branch 'master' into MSX 2017-11-25 08:19:24 -05:00
Thomas Harte
ee9f89ccb5 Simplifies CPC ROM input mechanism. 2017-11-25 08:18:01 -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
324b57c054 Adds inclusion of the 3/4 of the MSX's support chips that are currently implemented. 2017-11-24 22:05:50 -05:00
Thomas Harte
ae50ca9ab2 Moves the MSX class to the appropriate place and gives it a Z80. 2017-11-24 21:59:54 -05:00
Thomas Harte
6e4bde00d3 Merge branch 'master' into MSX 2017-11-24 21:50:38 -05:00
Thomas Harte
221c05ca76 Adapts the Mac port to use a Machine::DynamicMachine, thereby eliminating plenty of duplication. 2017-11-24 21:36:22 -05:00
Thomas Harte
ff21ff90eb Introduces MSX ROMs and an MSX class. 2017-11-24 20:43:26 -05:00
Thomas Harte
c83b3cefbc Eliminates the generalised special case selectors and ROM suppliers from the CPC, Vic-20, Electron and ZX80/81. 2017-11-24 17:55:28 -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
c7dd6247f0 Corrects Electron Mode 3 timing. 2017-11-23 16:06:05 -05:00
Thomas Harte
3365ff0200 Adds type recipient as a dynamic type, and accepts paste and fullscreen toggle in SDL. 2017-11-21 21:44:29 -05:00
Thomas Harte
c6306db47c Ensures the 6560 is fully initialised by setup_output. 2017-11-21 21:24:06 -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
90d33949f9 Adds a mapping of backspace for the Electron. 2017-11-18 20:02:04 -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
de9db724a7 Introduces Configurable::Device and implements it for the Electron. 
Configurable::Device covers devices that have user-facing configuration options, listing them and accepting them.
 2017-11-17 23:02:00 -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
5408efe9b5 Flags obvious default options within the 6560, Vic-20 and DynamicMachine. 2017-11-12 16:41:09 -05:00
Thomas Harte
198d0fd1de Makes it obvious to GCC that a return result is always supplied. 2017-11-12 16:37:18 -05:00
Thomas Harte
c1eab8d5f3 Corrects a pragma mark that escaped detection through typo. 2017-11-12 16:11:24 -05:00
Thomas Harte
5aef81cf24 Commutes cross-platform #pragma marks to //MARK:s. 2017-11-12 15:59:11 -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
792cbb1536 Resolvws out-of-order initialisation within the C1540. 2017-11-11 12:35:51 -05:00
Thomas Harte
916eb96b47 Makes buffer size restriction explicit in the Vic-20. 2017-11-10 22:59:11 -05:00
Thomas Harte
4add2c1051 Corrects order-of-initialisation errors in the TIA. 2017-11-10 22:57:43 -05:00
Thomas Harte
cb0f58ab7a Corrects order-of-initialisation errors in the CPC (again), TextureBuilder, TextureTarget, Z80, MFM parser and binary tape player. 2017-11-10 22:57:03 -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
5b6ea35d96 Corrects initialisation ordering for the ZX80/81, C1540 and AY-3-8910. 2017-11-10 22:31:27 -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
46e7c199b2 Corrects improper initialisation order of the Commodore .tap and CRTMachine::Machine. 2017-11-10 22:08:40 -05:00
Thomas Harte
a825da3715 Reinstates missing include file. 2017-11-10 22:02:02 -05:00
Thomas Harte
fabaf4e607 Adds missing include files, corrects bad include paths and eliminates the Clang-specific __undefined. 2017-11-10 21:56:53 -05:00
Thomas Harte
f7f2736d4d Corrects missing includes in the SerialBus, Electron Video and Typer. 2017-11-10 20:37:18 -05:00
Thomas Harte
cb015c83e1 Eliminated C99-style struct initialisations. 2017-11-10 19:14:19 -05:00
Thomas Harte
2203499215 Enables -Wreorder and corrects a few of the more trivial fixes thereby suggested. 2017-11-09 22:14:22 -05:00
Thomas Harte
c0055a5a5f Further builds up SConstruct, correcting many missed imports and a couple of improper uses of C99 in C++ code. 2017-11-09 22:04:49 -05:00
Thomas Harte
6e1d69581c Eliminates a variety of end-of-line spaces. 2017-11-07 22:54:22 -05:00
Thomas Harte
f95515ae81 Eliminates a large number of instance of end-of-line tabs. 2017-11-07 22:51:06 -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
0da78065ce Eliminates some dangling cases of undefined initial state in the TIA. 2017-11-06 22:12:39 -05:00
Thomas Harte
0116d7f071 Added a platform-neutral route for feeding ROMs to machines, in a platform-dependant fashion; implemented for the CPC. 2017-11-05 20:12:01 -05:00
Thomas Harte
1e1efcdcb8 Pushes far enough along the path of having the SDL version do work that it becomes obvious I've never figured out the correct course of action if there is no sound output. 2017-11-05 12:49:28 -05:00
Thomas Harte
218b976dbc Adds through route for setting a texture bookender, and exploits it from the Electron. 2017-10-23 18:35:37 -04:00
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
ec999446e8 Commutes int and unsigned casts to the functional style. 2017-10-21 21:00:40 -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
405f58d6a3 Corrects write guard names. 2017-10-21 10:21:40 -04:00
Thomas Harte
b2c1b83fcd Consolidates Vic-20 keyboard code. 2017-10-19 22:27:30 -04:00
Thomas Harte
1825af0dd3 Eliminates dead code in the Vic-20 and Inputs::Joystick. 2017-10-19 22:15:21 -04:00
Thomas Harte
c2f6799f0c Implements Vic-20 restore key. 2017-10-19 22:02:34 -04:00
Thomas Harte
5c141af734 Prevents undefined behaviour from the CPC's timer. 2017-10-17 22:40:32 -04:00
Thomas Harte
da580e4186 Merge branch 'master' into UniversalInput 2017-10-17 22:36:22 -04:00
Thomas Harte
ce78d9d12c Introduces buffer alignment when writing to textures. 
To avoid cross-boundary writes and hopefully to eke out a little better performance.
 2017-10-17 22:09:48 -04:00
Thomas Harte
edbc60a3fb Various undefined behaviour fixes. 
Primarily around uninitialised variables, but also with an attempted use of a negative pointer.
 2017-10-17 21:29:19 -04:00
Thomas Harte
0c2dd62328 Various undefined behaviour fixes. 
Primarily around uninitialised variables, but also with an attempted use of a negative pointer.
 2017-10-17 20:50:46 -04:00
Thomas Harte
18798c9886 Corrects joystick memory leaks. 2017-10-15 20:49:47 -04:00
Thomas Harte
7aaf27389c Commutes the Atari 2600 to the JoystickMachine interface. 2017-10-15 20:44:59 -04:00
Thomas Harte
ee179aa7bd Introduces a joystick analogue to the shared keyboard interface, and implements it for the Vic-20. 2017-10-14 22:36:31 -04:00
Thomas Harte
3a05ce36de Adds a reference to the calling keyboard in reset_all_keys. 2017-10-14 22:07:11 -04:00
Thomas Harte
4f289ab10b Corrects some deficiencies in Vic-20 keyboard mapping. 
... albeit without yet being clear on the wiring behind restore.
 2017-10-12 22:33:00 -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
edb9fd301c Begins this project's conversion to functional-style casts. 2017-10-03 22:04:15 -04:00
Thomas Harte
698e4fe550 Tidies the Disk file hierarchy. 2017-09-22 22:39:23 -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
2f13517f38 Adjusts the 1770 not to talk directly to the drive about motor status. 2017-09-11 22:10:56 -04:00
Thomas Harte
fb9fd26af7 Updates the 1540 for the slightly-more modern world of decoupled drives and disks (!). 2017-09-11 22:08:10 -04:00
Thomas Harte
d3c385b471 Separates the 8272's drive selection signalling from actual drive ownership. 
Thereby returns working motor control to the CPC.
 2017-09-11 21:25:26 -04:00
Thomas Harte
96bf133924 Withdraws requirement for DiskController users to specify a PLL multiplier or to provide rotation speed. 
In the latter case because it's no longer of any interest to the controller, and in the former because I'd rather it be picked automatically.
 2017-09-10 22:56:05 -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
3b12fca417 Corrects non-recurring-pattern adaptation bug: the 'SerialPortVIA' should keep a reference to its VIA, not a copy of it. 2017-09-05 21:19:56 -04:00
Thomas Harte
8eeb7e73cd Adds a commented-out printf that I might like to use again later. 2017-09-05 21:15:56 -04:00
Thomas Harte
6547102511 Attempts better to hide C1540 implementation details from the reader. 
In this case not from the compiler, as it's desireable to keep `run_for` as a non-virtual call, and therefore everything else comes alone for the ride.
 2017-09-04 20:58:00 -04:00
Thomas Harte
a49594c6a3 Tweaks Vic20 Machine parent class order so that when turned into a CRTMachine, still successfully dynamically casts as a ConfigurationTarget. 
More thorough thought is required.
 2017-09-04 20:56:00 -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
96648df5fe Ensures all parts of the Electron have a fully-defined initial state. 
Specifically to resolve an error with shift being pressed at startup due to a failure to establish a default value for that flag, but applying the same principle across the board.
 2017-08-31 22:29:24 -04:00
Thomas Harte
53a88a7e12 Causes the ZX80/81 to omit support for the wait line if being configured as a ZX80. 2017-08-27 16:45:36 -04:00
Thomas Harte
4a66dd9e82 Arranges for the ZX80/81 to get a peek at target configuration prior to construction. I'm as yet undecided on whether to make this the norm. 2017-08-27 16:42:16 -04:00
Thomas Harte
57bfec285f Makes it optional whether the Z80 supports the wait line. If the wait line isn't in use, runtime costs are decreased because the optional wait cycles need not be iterated over. 2017-08-26 23:08:57 -04:00
Thomas Harte
e7ad79c79a Breaks apart the CPC's 6845 bus handler to obey phase 1 and phase 2, and now back-dates interrupts when appropriate. 2017-08-26 14:07:51 -04:00
Thomas Harte
6e99169348 Permits the 6845's bus state to be examined by an owner, eliminating the need to buffer it in the bus handler. But more than that it allows the CRTC to decide when it adjusts the various outputs respective to the main phase. So a net effect of the change is that the CPC now sees vsync a cycle earlier, because my current reading of the 6845 datasheet is that it is set at the end of phase 1, not the beginning of the next phase 1. 2017-08-26 12:59:59 -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
cde29c4bf4 Added forceinlines and properly declared finals and overrides. 2017-08-21 21:07:10 -04:00
Thomas Harte
e1aded0d95 Allows Z80 users to opt out of support for the bus request line. Which both now do. 2017-08-21 20:43:12 -04:00
Thomas Harte
0cbc1753b9 Quick fixes: the binary tape player now considers talk to the sleep observer only if motor control changes. The Amstrad CPC no longer attempts to use the component argument to identify the caller, since this will often be that of the superclass and not that of the derived class known to the CPC. 2017-08-20 13:18:46 -04:00
Thomas Harte
8f5ae4a326 The CPC now responds to tape-originating sleeper observations. 2017-08-20 12:21:02 -04:00
Thomas Harte
e88a51e75e Worked logic all the way down to the CPC. If the 8272 announces that it is asleep, it is now no longer clocked. Also very slightly cut down on IRQ line chatter to the Z80. 2017-08-20 12:05:00 -04:00
Thomas Harte
f2699a3f2b Okay, even if releasing it is unsafe, I can at least move the typer so that it is no longer called. 2017-08-20 10:24:01 -04:00
Thomas Harte
85253a5876 Sought further to reduce the processing footprint of palette changes by updating only those table entries that are affected by a change. 2017-08-20 10:13:23 -04:00
Thomas Harte
911ee5a0d3 At least added a fast return. 2017-08-19 22:22:51 -04:00
Thomas Harte
57c5b38a6d Step one towards cutting much of this cost: build only the table that's appropriate for the current mode, and at least declare when a more minimal change would be sufficient. 2017-08-19 22:19:46 -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
b476f06524 Slowed the typer, having discovered that otherwise it has problems transitioning from a shifted to an unshifted character. 2017-08-16 22:12:16 -04:00
Thomas Harte
925e774015 Added a decent portion of documentation. But started feeling like I should address my various ownership decisions. Which would justify a separate pull request. 2017-08-16 16:23:33 -04:00
Thomas Harte
4c15e46fd1 Performed the normative removal from public view of Vic-20 implementation details. Which were hefty. 2017-08-16 16:05:30 -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
903a17ae11 Corrected typo and removed replication of what's already declared formally. 2017-08-16 14:53:03 -04:00
Thomas Harte
de1c526789 Cut the amount disclosed by the Atari 2600 for public inspection down to the minimum, relocating implementation into the .cpp. 2017-08-16 14:52:40 -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
3c148f5721 Fixed clanger of an error. 2017-08-16 14:02:46 -04:00
Thomas Harte
360c8a99a3 Adjusted Atari2600 actually to use the nominated type of bus extender. 2017-08-16 12:57:32 -04:00
Thomas Harte
06e31f5102 Consequential to the 6502 change, severs the Atari 2600's cartridge container from its former attempt at runtime polymorphism, in favour of each cartridge's specific hardware being defined as a 'bus extender'. 2017-08-16 12:39:15 -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
334872d374 Clarified, slightly. 2017-08-14 12:47:11 -04:00
Thomas Harte
7ea703f150 Started making provisions for a DMA-compatible implementation. Re: the CPC, it sounds like DMA acknowledge might be permanently wired, causing DMA mode seemingly to work from the 8272's point of view. 2017-08-14 08:38:00 -04:00
Thomas Harte
3831fbaca2 Ensured the ZX80 and '81 also provide the necessary hook for destruction. 2017-08-11 12:11:01 -04:00
Thomas Harte
1d8edf58dd Ensured that a virtual destructor is declared, so that the various automatically-generated real constructors get in on the action. 2017-08-11 12:07:48 -04:00
Thomas Harte
4785e316ff Now with exposition. 2017-08-11 11:36:03 -04:00
Thomas Harte
44da9de5b0 Tweaked typing timing expectations. 2017-08-11 11:35:28 -04:00
Thomas Harte
4ecd093891 Fixed test for termination of a key sequence; the previous error will have seen this reduce all multi-key sequences to just the one, and expand single-key sequences to "probably" two, posting an out-of-bounds code to the machine at completion. 2017-08-11 11:35:14 -04:00
Thomas Harte
dd4bc87d52 Fixed: should be a full-path #ifdef guard, given that this is one of the classes named relative to its namespace. 2017-08-11 11:21:33 -04:00
Thomas Harte
570d25214e Made an initial attempt at typer support for the CPC. 2017-08-11 11:21:07 -04:00
Thomas Harte
cf810d8357 Minor: ensure the CRT is set to output as a monitor. 2017-08-10 14:42:47 -04:00
Thomas Harte
4961fda2a9 Ensured counter-intuitive CRTC writes get through, taking the opportunity to correct my handling of port IO in general: selecting multiple devices for input results in a logical AND (i.e. open collector mode), and both the CRTC and gate array will receive data from 'input's if applicable. 2017-08-10 12:39:19 -04:00
Thomas Harte
6a6e5ae79c Forced users of the 6845 to be explicit about which type. So far with no effect. 2017-08-10 12:28:57 -04:00
Thomas Harte
484524d781 Implements RAM paging. The 6128 is now emulated. 2017-08-08 16:01:56 -04:00
Thomas Harte
a7103f9333 Disks are now communicated to the 8272. Which is able to handle four of them. 2017-08-06 13:24:14 -04:00
Thomas Harte
29288b690e Switched disk controllers to be instantiated explicitly in terms of cycles, created an Amstrad-specific subclass of the 8272 to record the direct programmatic availability of all disk motors bundled together, and otherwise adjusted to ensure the thing is clocked and that the motor is enabled and disabled appropriately. The 8272 is also now formally a subclass of the incoming MDM controller. 2017-08-06 09:45:16 -04:00
Thomas Harte
3e984e75b6 Strung up an empty shell that eventually should contain the 8272, and added appropriate IO decoding to the Amstrad. 2017-08-05 19:45:52 -04:00
Thomas Harte
9e8645ca7a Fixed ROM paging port decoding. It should have been fd00 if completely decoded, not df00, but also shouldn't be completely decoded. 2017-08-05 19:24:03 -04:00
Thomas Harte
caf3ac0645 Sought: (i) to instruct the CPC that it should be a 664, not a 464, if given a disk image (at least until I have RAM paging implemented for a 6128); (ii) to support ROM selection within the CPC and allow paging in of AMSDOS. 2017-08-05 19:20:38 -04:00
Thomas Harte
4b19cf60df Added omitted semicolon. 2017-08-05 09:18:55 -04:00
Thomas Harte
b3788fed41 Fixed AY queuing behaviour as handled by the Amstrad. I think I need to come up with clearer semantics here. 2017-08-05 09:12:17 -04:00
Thomas Harte
a63aa80dc9 Merge branch 'master' of github.com:TomHarte/CLK 2017-08-04 16:51:52 -04:00
Thomas Harte
63f57c8c4f Adjusted visible portion of frame; completely empirical, as I'm chasing a machine that shipped with a monitor. 2017-08-04 16:51:46 -04:00
Thomas Harte
f075fea78c Introduces filtering of the CRTC's vsync signal into the gate array. 2017-08-04 16:36:55 -04:00
Thomas Harte
c0f0c68f4f Corrects quick-hack version of border drawing: the assumption that the colour must be the same over a plotted period. Also corrects my entry for colour 15. 2017-08-04 12:13:05 -04:00
Thomas Harte
d9097facf1 Found documentation that makes more sense, and in practice seems to be more correct: the test after vertical sync is for greater than 32, not less. Also I decided to chance my arm on counter reset also resetting interrupt request. The raster effects of Ghouls 'n' Ghosts is now pretty much correct but one line off. I think probably either something is off in my wait-two logic on the post-vsync timer event, or possibly the vsync bit exposed via the PPI doesn't mean exactly what I think it means. 2017-08-04 08:56:09 -04:00
Thomas Harte
b927500487 Clarified code a little, but this is mostly fiddling in the margins. 2017-08-03 22:00:30 -04:00
Thomas Harte
e71eabedf9 Fixed timer clearing tet. 2017-08-03 21:30:04 -04:00
Thomas Harte
33ed27c3ad Minor tidiness: included missing headers, and spaced out the ROM type and key lists for readability. 2017-08-03 12:45:42 -04:00
Thomas Harte
575b1dba75 Formally declared the ZX80/81 and Amstrad CPC as keyboard machines in their public interface. Which means not having to repeat the meaning of set_key_state and clear_all_keys. So: a minor DRY improvement. 2017-08-03 12:38:22 -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
2f2071be8a These should actually both be in the public header, as the types are used in an exposed method. 2017-08-02 22:18:30 -04:00
Thomas Harte
6d510e4e70 Made it no longer public knowledge that any sort of Typer is involved in being a ZX80/81. 2017-08-02 22:17:22 -04:00
Thomas Harte
8e0736fbe6 Reinstated typing ability, albeit with an ugly inline insertion. But I think I can defer dealing with typers to another pull request. The whole issue of keyboard mapping probably needs reappraisal. 2017-08-02 22:16:09 -04:00
Thomas Harte
681d1e2f8d Breaking its typer for now, adapted the ZX80/81 to having a Z80, not being one. 2017-08-02 22:12:59 -04:00
Thomas Harte
42e70ef993 Adjusted slightly as per Z80 change, and to pull everything internally declared into the Amstrad CPC namespace. 2017-08-02 22:11:03 -04:00
Thomas Harte
d3bf8fa53b Upped the documentation. 2017-08-02 20:37:26 -04:00
Thomas Harte
f5e2dd410e Constrained output to the centre 90%. 2017-08-02 19:55:44 -04:00
Thomas Harte
e50adf1cc8 Were my TZX support up to it, this would likely be sufficient for tape emulation. 2017-08-02 13:50:14 -04:00
Thomas Harte
dcab10f53e Ensured the AY's async queue doesn't just fill and fill. 2017-08-02 07:38:35 -04:00
Thomas Harte
f602f9b6ec Adds an attempt to clock the AY. 2017-08-02 07:21:33 -04:00
Thomas Harte
4d5d5041df Attempted to ensure a clean startup. 2017-08-01 22:18:42 -04:00
Thomas Harte
587eb3a67c Factored interrupt counting out of the CRTCBusHandler. 2017-08-01 22:15:39 -04:00
Thomas Harte
8d39a20088 Added proper output of mode 3, were anything ever to try to use it. 2017-08-01 21:51:41 -04:00
Thomas Harte
4b6370eb86 Realised my colour error: mapping the ROM numbers as though they were the hardware numbers. Having fixed that, spotted that I was deserialising R and B the wrong way around and dividing by too much. Colours now appear to be correct. 2017-08-01 21:47:52 -04:00
Thomas Harte
c6e340a8a2 Wired up the vsync signal. Pen 15 no longer flashes like crazy. Still can't figure out why the palette is so askew; was looking for perhaps some sort of detection of a green screen rather than a colour one, but there's no obvious input for that. 2017-08-01 21:21:59 -04:00
Thomas Harte
31c7153301 Corrected bit to colour mapping for modes 0 and 1. The total palette is still way off but there's consistency between modes now. 2017-08-01 20:52:42 -04:00
Thomas Harte
7e04d00cc1 Fixed key values, causing the new set of keys to work, decreased quantity of output and ensured that pixels appear in modes 0 and 2. 2017-08-01 20:39:10 -04:00
Thomas Harte
eca9586a0f Fixed: input value is no longer overwritten by 0xff. The '0' key now works. 2017-08-01 20:19:02 -04:00
Thomas Harte
2e4577f741 Made a game attempt at implementing a (sticky) keyboard. No effect yet. 2017-08-01 17:52:05 -04:00
Thomas Harte
f5b278d683 Added enough stuff to put the emulated Amstrad CPC in a state of knowing whether its '0' key is pressed. 2017-08-01 17:31:56 -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
3b292273c7 Fixed: BC2 is always implicitly set. The machine is now periodically checking the AY's register 14 (i.e. the first input port), so probably there's enough here now to implement keyboard input. 2017-08-01 17:05:11 -04:00
Thomas Harte
cb732e5d5f Made an attempt to wire in an [unclocked] AY, in an endeavour to get to keyboard reading. 2017-08-01 17:01:58 -04:00
Thomas Harte
08ad35efd9 It's barely an implementation of the 8255, but ensured that data is bounced into the PortHandler, conveniently assuming the interaction mode used by the CPC. 2017-08-01 16:34:13 -04:00
Thomas Harte
58b98267fc Formally transferred ownership of PIO accesses to an incoming template, and decided to start being explicit about how to specify the interfaces and provide fallbacks for optional behaviour for the new, clean generation of interfaces. A full-project sweep will inevitably occur but I'll try to tie off this branch first. 2017-08-01 16:15:19 -04:00
Thomas Harte
a27946102a Took a shot at the interrupt counter. Attempts at keyboard reading now recur so it'll probably do for now. I think that next puts me into the realm of needing to implement the 8255. 2017-08-01 15:49:16 -04:00
Thomas Harte
6ac7132799 Had a quick go at properly outputting Mode 1, adding wiring to communicate palette and mode changes to the CRTC bus handler. Colours are off but it's sufficient for now. 2017-08-01 15:16:13 -04:00
Thomas Harte
ca42abab70 Doubled up to ensure that every byte that should be inspected is represented. This makes it clearer that I'm on the right road. A garbled version of 'Amstrad 64k Microcomputer' can be discerned, in a weird grayscale and with the right-hand column missing and skewed output as a result. 2017-08-01 07:56:44 -04:00
Thomas Harte
933d69a256 Fixed slightly: the CPC wiki has a typo. It's 12 and 13 that move up to 14 and 15. 2017-08-01 07:51:13 -04:00
Thomas Harte
10a5581aea Made first attempt at offering some sort of pictographic of actual RAM contents. 2017-08-01 07:34:12 -04:00
Thomas Harte
3ae699964f Ensured an actual pixel stream is supplied for pixel regions. Though it's just a long stream of white pixels for now. So visual output is unchanged. 2017-08-01 07:24:29 -04:00
Thomas Harte
9d953421d8 After a quick check, added a couple of other _delegate initialisations. I should probably find a way to template this. 2017-08-01 07:07:43 -04:00
Thomas Harte
763e3b65d1 Ensured a proper initial value for delegate_. 2017-07-31 22:46:06 -04:00
Thomas Harte
42dd27c9b1 Shunted method bodies inline, given that there's no need for a declaration/definition distinction. 2017-07-31 22:39:25 -04:00
Thomas Harte
3df13cddd4 As per my keenness for cleanliness improvements corresponding to my ever-increasing C++ ability: turned the Amstrad into something that a factory produces, allowing me completely to hide a bunch of implementation details. 2017-07-31 22:32:04 -04:00
Thomas Harte
c2253c1e0f Fixed multiplier: the dot clock I've used to instantiate the CRT is the pixel clock, not the character clock. 2017-07-31 22:17:46 -04:00
Thomas Harte
f742fd5d4a Made basic attempt to get something on screen: white where the display is enabled, black for the border. 2017-07-31 22:13:20 -04:00
Thomas Harte
69b99fe127 Transferred ownership of the CRT to the CRTC bus handler, to give it easy access. 2017-07-31 22:04:52 -04:00
Thomas Harte
e28829bd1b Corrected CRTC timing, gave it someone to talk to and a means with which to talk. 2017-07-31 20:14:46 -04:00
Thomas Harte
68ceeab610 Created a 6845 class and started pushing data at it and clocking it. It doesn't currently have the concept of a bus but will do, hence the in-header implementation. 2017-07-31 19:56:59 -04:00
Thomas Harte
68dca9d047 Made a first attempt at ROM paging, with pretty much the same scheme that'll be needed for 128kb support. 2017-07-31 19:37:28 -04:00
Thomas Harte
d88ca151f4 Added a first attempt at output port decoding. Just logging for now. 2017-07-31 19:25:10 -04:00
Thomas Harte
3c90218c3d With a very basic stab at something a bit like the memory map (sans paging), execution begins. 2017-07-31 19:15:43 -04:00
Thomas Harte
afd409c883 Ensured that ROM images are loaded and passed to the Amstrad CPC. 2017-07-31 18:44:49 -04:00
Thomas Harte
9c04d851e4 Added the basics necessary to get the CPU ticking over, at a nominal 4Mhz but with the wait states that I currently believe to be accurate. 2017-07-31 07:29:50 -04:00
Thomas Harte
1d6fe11906 Added an instance of Outputs::CRT::CRT. So progress is now: select CDT, up comes a blank window. 2017-07-31 07:16:51 -04:00
Thomas Harte
c0f1313830 Performed sufficient wiring to get to the point where attempting to load a CDT creates an instance of the Amstrad CPC and then fails only because the thing vends a nullptr CRT. 2017-07-30 22:05:29 -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
8848ebbd4f Formalised set_interrupt_line's optional parameter as being a count of HalfCycles; corrected PartialMachineCycle.is_wait and effected the proper timing for counter reset on a ZX81. 2017-07-27 21:10:14 -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
81a3899381 Adjusted the Z80 formally to communicate in terms of half cycles rather than whole. 2017-07-26 19:42:00 -04:00
Thomas Harte
cda223ffc0 Added explicit signedness cast. 2017-07-25 22:49:03 -04:00
Thomas Harte
966b5e6372 Adapted the Z80's perform_machine_cycle to return Cycles. 2017-07-25 22:25:44 -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
d9c6b3bcf7 Corrected TIA's WSYNC lookahead to accept Cycles. 2017-07-25 22:13:41 -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
c1527cc9e2 Reduced back-and-forth between Cycles and ints within the Oric. 2017-07-24 22:46:31 -04:00
Thomas Harte
c77a83d86f The 6560 is now a ClockReceiver. This reduces to zero the number of remaining instances of the text run_for_cycles in this codebase. 2017-07-24 22:38:35 -04:00
Thomas Harte
a6e377aa57 The Electron's video is now a ClockReceiver. 2017-07-24 22:36:42 -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
2912d7055b The 6532 is now a ClockReceiver. 2017-07-24 21:57:24 -04:00
Thomas Harte
55ecb0c022 Converted the Microdisc into a ClockReceiver. 2017-07-24 21:51:13 -04:00
Thomas Harte
13f7aa4063 The TIA is now a ClockReceiver. 2017-07-24 21:48:34 -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
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
ba088e5545 Adapted the Z80 into a clock receiver, which also vends Cycles rather than a raw int within its PartialMachineCycle struct. The objective is to update it to vend HalfCycles within its struct, but I think I need to do some work on cycle/half-cycle arithmetic first. 2017-07-23 22:15:04 -04:00
Thomas Harte
6369138bd1 Converted the Oric's video output into a ClockReceiver. 2017-07-22 23:11:30 -04:00
Thomas Harte
c2a7dffa7d Converted the ZX80/81 video component into a ClockReceiver. As it happens, it's most convenient to take the half-cycle bus here. 2017-07-22 23:02:28 -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
1bbb4cb478 Increased documentation. 2017-07-22 17:39:51 -04:00
Thomas Harte
d46da6ac9d Added documentation. 2017-07-22 17:31:12 -04:00
Thomas Harte
dddb30477b Used a different inner-loop variable, for clarity. 2017-07-21 21:52:08 -04:00
Thomas Harte
37459a3ebc Fixed parameter shadowing. 2017-07-21 21:51:18 -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
2471ef805b Fixed signed/unsigned comparison and potential negative table reference. 2017-07-21 20:45:49 -04:00
Thomas Harte
a3e0024980 Chopped time accumulation out of the default Tape process because it's proving to be sufficiently expensive for a TZX as not to be worthwhile. Introduced a cheaper position capturing/restoring method. 2017-07-21 18:55:03 -04:00
Thomas Harte
44e5a03cf2 Removed just-don't-power-the-tape approach to pausing and playing, in favour of being fully communicative. 2017-07-19 19:21:27 -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
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
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
ac59dd8b1d Added enough typing to issue a load command. No thoughts as to running yet though. 2017-07-09 22:07:12 -04:00
Thomas Harte
353c854734 Removed a TODO that is no longer appropriate. 2017-07-09 22:06:50 -04:00
Thomas Harte
3e5c209039 Added basic Typer support for the ZX80 and '81. 2017-07-09 22:00:34 -04:00
Thomas Harte
ed28260aaf Hardens the ZX80/81 video routines to ensure they never try to push data into the future and don't double-count time when pixels would ostensibly run into sync. You could previously see the CRT being handed negative run lengths if sync interrupted pixels or if a run of more than 320 pixels (my arbitrary buffer size) occurred, with corresponding poor behaviour given my use of unsigned numbers. 2017-07-09 19:33:05 -04:00
Thomas Harte
87658e83c1 Moved line counter reset logic; I think this is actually correct. 2017-07-09 00:05:30 -04:00
Thomas Harte
4509c3ce34 By observation, it appears that disabling vsync occurs on any port output whatsoever, as long as NMI isn't blocking it. 2017-07-08 21:01:52 -04:00
Thomas Harte
30e93979d2 Removed data work if sync is enabled; in that case no data is output. 2017-07-08 21:01:07 -04:00
Thomas Harte
d6b87053bf Introduced an explicit record of whether a video byte is latched. It's definitely incorrect to treat the latching of 0 as equivalent to no latching, as the byte that will eventually become video is not strongly implied. 2017-07-08 20:40:19 -04:00
Thomas Harte
22389a5d2d Merge branch 'master' into HiRes 2017-07-08 20:38:25 -04:00
Thomas Harte
54efcb7e2f Made a game attempt at automatic motor control and ensured setting is initialised correctly from the user defaults. 2017-07-08 19:31:20 -04:00
Thomas Harte
e2575d6de4 Routed tape motor selections through to the C++ side of the world, and ensured that manual tape playback works properly. 2017-07-08 19:21:12 -04:00
Thomas Harte
46fff8e8a2 Ensured bit 8 is uniquely from the latched video byte, not an OR of that with the refresh address. 2017-07-06 22:48:48 -04:00
Thomas Harte
a3684545b5 Added a block on the tape motor for a short period after each time the ROM routine is intercepted for a substituted byte read. To reduce the collision between fast tape and real tape loading. 2017-07-06 22:33:54 -04:00
Thomas Harte
b842c5b8bb Merge branch 'master' into ZX81FastLoading 2017-07-06 22:03:24 -04:00