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Author SHA1 Message Date
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
45cbab6751 Merge pull request #172 from TomHarte/KeyboardMachines 
Publicly declares the ZX80/81 and Amstrad CPC as keyboard machines
 2017-08-03 12:39:22 -04:00
Thomas Harte
a7b74d6164 Merge pull request #171 from TomHarte/EverMoreTZX 
Further expands the implemented subset of the TZX file format
 2017-08-03 12:38:44 -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
a3b16b6dfa Further beefs up the list of chunks that this TZX parser can either comprehend or skip. 2017-08-03 12:13:41 -04:00
Thomas Harte
c8f4de6f11 Merge pull request #170 from TomHarte/KeyboardCraziness 
Separates knowing the mapping from ASCII to machine keys from the act of typing them
 2017-08-03 11:53:42 -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
985fbf59c2 Merge pull request #169 from TomHarte/Z80HasA 
Converts the Z80 into a BusAdaptor-type component
 2017-08-02 22:42:49 -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
039811ce6a Switched the Z80 to being something a machine has, not something a machine is. 2017-08-02 22:09:59 -04:00
Thomas Harte
a54ccd1969 Merge pull request #168 from TomHarte/CPC 
Adds an initial Amstrad CPC 464 emuation
 2017-08-02 20:50:02 -04:00
Thomas Harte
707821ca55 Added the normal readme to explain what's omitted here. 2017-08-02 20:45:14 -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
3ca9c38777 Attempted to move to more accurate bus reading — if control lines are set then all subsequent data inputs should act according to the current control lines; changes to port input should be reflected live upon readings, etc. 2017-08-02 19:45:58 -04:00
Thomas Harte
2d2cefb0b0 Adjusted factoring to introduce support for block 10. 2017-08-02 14:36:47 -04:00
Thomas Harte
2fd071e45d Made an honest attempt at outputting turbo speed data block data. The CPC now at least starts to load. 2017-08-02 14:24:34 -04:00
Thomas Harte
d7a5c3f49a Added support for the ID 20 block and fixed a minor error in my skip-the-contents version of block 11: length is three bytes long, not two. This gives me enough structure properly to get to the end of my current test CDT, albeit without making any of the noises. 2017-08-02 14:12:34 -04:00
Thomas Harte
819761f9fb Fixed another uninitialised pointer. 2017-08-02 13:56:35 -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
633d8965e2 Removed accidental logging commit. 2017-08-02 07:38:14 -04:00
Thomas Harte
f602f9b6ec Adds an attempt to clock the AY. 2017-08-02 07:21:33 -04:00
Thomas Harte
f7e66dea61 Added a compound divide and convert. 2017-08-02 07:21:21 -04:00
Thomas Harte
bda9441620 Made an attempt to clock the AY. 2017-08-02 07:20:59 -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
6ca07f1e28 I guess it might end up living somewhere else, but introduced a header with the compiler-specific stuff to allow me to force things inline. 2017-08-01 22:04:58 -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
9d43784c65 Significantly increased quantity of keys forwarded. 2017-08-01 20:37:55 -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
0267bc237f Added the ability to set a port input, and relaxed bus state testing. I think my on-demand bus reactions here are inappropriate, so more work to do here probably. 2017-08-01 18:04:51 -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
2d4e202be3 Completed dangling comment. 2017-08-01 17:01:36 -04:00
Thomas Harte
64da8e17d1 Fixed: of course this should take a reference to an existing port handler rather than hatching its own; otherwise additional communication with a port handler by an i8255 owner doesn't work as intended. 2017-08-01 17:01:20 -04:00