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 |
|