Thomas Harte
6a2db52adb
Ensures safe Megacart cartridge sizes too.
2018-10-18 21:09:05 -04:00
Thomas Harte
34e13d0d4d
Clears top bit when reading the keypad and ensures no undefined behaviour reading the cartridge.
2018-10-18 21:05:58 -04:00
Thomas Harte
d9e65cd758
Ensures neither the ColecoVision nor the MSX processes mid-cycles.
2018-09-21 22:53:35 -04:00
Thomas Harte
e7f4babf41
Starts taking steps towards SMS/GG and V9938/9958 support.
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Specifically: routine namespace stuff, plus the intention to move to a table-based operation+cost version of timing. Reordering works fine for the TMS, and probably would also for the SMS/GG, but it'd be problematic with the command engine of the V9938/9958 and maintaining a consistent set of code is easier.
2018-09-17 22:59:16 -04:00
Thomas Harte
0897210969
Neither cartridge machine should be a media target; their media can't be changed at runtime.
2018-07-10 21:40:13 -04:00
Thomas Harte
7e58a44771
Renames ConfigurationTarget to MediaTarget as per its newly-reduced interface.
2018-07-10 21:32:28 -04:00
Thomas Harte
3862fdb44c
Simplifies initialisation procedure for all machines.
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With the side effect of allowing every machine to try to load only the ROMs that it needs.
2018-07-10 20:00:46 -04:00
Thomas Harte
2954373115
Introduces an intermediary for digital <-> analogue conversion.
2018-06-11 21:35:03 -04:00
Thomas Harte
3ea2a4ccb8
Moves the joystick class towards accepting analogue inputs.
2018-06-10 20:45:52 -04:00
Thomas Harte
b3f4d0ed8c
Imposes a three-cycle penalty for SN76489 access.
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This is my reading of (i) the SN76489 data sheet; plus (ii) the ColecoVision schematic.
2018-05-16 19:06:03 -04:00
Thomas Harte
0b771ce61a
Removes all instances of the copyright symbol.
2018-05-13 15:19:52 -04:00
Thomas Harte
e92e06a5f4
Doubled down on the ROMMachine::ROMFetcher typedef.
2018-04-23 20:20:14 -07:00
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.
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Thereby avoids a race condition.
2018-03-22 21:59:19 -04:00
Thomas Harte
78eaecb29e
Provides the proper framework for encapsulation of analyser target specifics.
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... 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
03501df9e5
Merge pull request #365 from TomHarte/CartridgeDetermination
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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
c82af4b814
Introduces get_confidence for the ColecoVision.
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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
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.
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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.
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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.
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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
