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238 Commits

Author SHA1 Message Date
Thomas Harte
1c6af279b2 Picks more appropriate cropping now that I'm obeying HSYNC-as-blank. 2018-06-23 16:40:17 -04:00
Thomas Harte
9968342a11 Ensures the pixel collection test is inline with other decisions. 2018-06-23 16:18:33 -04:00
Thomas Harte
c248ecde48 Introduces joystick support for the CPC. 2018-06-21 22:46:10 -04:00
Thomas Harte
d45f1a793d Introduces composite/RGB selection for the Amstrad CPC. 2018-06-21 20:00:49 -04:00
Thomas Harte
1f8b69a5b0 Attempts to honour the full CRTC 'sync' period, placing blank and the colour burst. 2018-06-20 22:38:54 -04:00
Thomas Harte
acb74185d5 Revokes test logging. 2018-06-19 19:39:09 -04:00
Thomas Harte
7728adfc5a Eliminates repetition of the 10 constant. 2018-06-14 17:23:47 -04:00
Thomas Harte
f3fe711542 Attempts to reduce FDC costs. 2018-05-27 23:55:04 -04:00
Thomas Harte
db8d8d8404 Commutes Sleeper to ClockingHint::Source, making state more granular. 2018-05-27 23:17:06 -04:00
Thomas Harte
7226d8d4f7 Eliminates all instances of µ. 2018-05-13 15:46:14 -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
39d779edf0 Makes CPC an activity source. 2018-05-11 21:45:46 -04:00
Thomas Harte
10c0e687f5 Attempts to introduce sleeping for the Disk II. 2018-04-29 17:51:10 -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
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
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
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
c827d14d97 Corrects various GCC warnings across the 6560, CPC, TIA, Oric video and elsewhere. 2017-11-12 17:17:27 -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
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
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
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
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
ec999446e8 Commutes int and unsigned casts to the functional style. 2017-10-21 21:00:40 -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
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
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
edb9fd301c Begins this project's conversion to functional-style casts. 2017-10-03 22:04:15 -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
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
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
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
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
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
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
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
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
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