Thomas Harte
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a4cd12394e
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Reinstated the Activision stack pager.
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2017-03-18 18:03:48 -04:00 |
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Thomas Harte
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e0bca1e37b
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Reinstated the 16 and 32 kb Atari pagers, and ensured the 6532 always starts in a valid state.
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2017-03-18 17:34:34 -04:00 |
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Thomas Harte
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bb3daaa99b
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Sought to reintroduce the Atari 8k paging scheme, at the same time deciding to do away with the copy and paste of holding on to ROM data.
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2017-03-18 15:04:01 -04:00 |
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Thomas Harte
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36b58d03b7
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Formalised read bus value guarantee from the 6502, fixed missing clock signal wiring on the Atari cartridge class, reintroduced CommaVid support.
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2017-03-18 14:46:46 -04:00 |
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Thomas Harte
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7958459db9
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In theory unpaged cartridges should now work. Time to debug.
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2017-03-18 14:01:04 -04:00 |
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Thomas Harte
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7302703039
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Implemented the Activision stack paging scheme.
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2017-03-14 20:24:05 -04:00 |
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Thomas Harte
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97a8a96593
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Rejigged how the memory map is handled and implemented MNetwork support.
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2017-03-14 20:07:54 -04:00 |
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Thomas Harte
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3b29276228
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Implemented the MegaBoy paging scheme.
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2017-03-14 17:40:01 -04:00 |
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Thomas Harte
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b3632a4e86
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Institutes CBS RAM Plus emulation.
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2017-03-14 17:25:10 -04:00 |
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Thomas Harte
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f0d944847b
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Fixed setting of the second 1kb.
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2017-03-11 18:16:29 -05:00 |
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Thomas Harte
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add14fb43a
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Made an attempt to implement Tigervision paging.
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2017-03-11 17:44:35 -05:00 |
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Thomas Harte
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33bda2d40c
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Switched to image inspection for RAM guesses rather than disassembly. Which fixes the other Parker Bros titles.
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2017-03-11 13:04:23 -05:00 |
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Thomas Harte
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2b5e3a600e
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Made a first attempt at implementing the Parker Bros pager within the emulation.
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2017-03-11 12:43:12 -05:00 |
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Thomas Harte
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9c72ce5bd2
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Ensured a settling delay is permitted before an NTSC/PAL decision is made. To avoid false switches just due to startup.
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2017-03-06 19:37:35 -05:00 |
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Thomas Harte
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d3257c345a
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Tested against public ROMs and corrected. Also moved the deferred adjustment into a more canonical place.
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2017-03-04 17:00:28 -05:00 |
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Thomas Harte
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837cccdf83
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Switched to deferred updates for the 6532.
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2017-03-04 14:58:28 -05:00 |
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Thomas Harte
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93d1573481
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Added a fix for certain homebrews.
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2017-03-01 07:59:25 -05:00 |
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Thomas Harte
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893a5dd007
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Added an artificial low pass filter, attempting to capture post-digital effects.
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2017-02-28 21:29:55 -05:00 |
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Thomas Harte
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184c8ae707
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Extended to emulate the CommaVid.
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2017-02-27 20:50:59 -05:00 |
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Thomas Harte
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9d7985c1e1
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Added Super Chip emulation.
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2017-02-26 17:47:29 -05:00 |
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Thomas Harte
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98376de9ad
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Started returning 'no effect' for pot ports, rather than doing nothing. Still very much TODO though.
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2017-02-25 22:58:58 -05:00 |
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Thomas Harte
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77ed4ddc05
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Slightly simplified ready line release logic.
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2017-02-23 21:08:32 -05:00 |
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Thomas Harte
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8291a63d5f
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Fixed loss of audio when switching to PAL.
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2017-02-22 21:15:37 -05:00 |
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Thomas Harte
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7019d396d0
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Threw in some asserts, discovering a bug in missile positioning.
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2017-02-21 22:04:27 -05:00 |
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Thomas Harte
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d1dbf8c21f
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Missile to player lock is supposed to be a toggle; also factored out the commonalities of missile and ball drawing.
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2017-02-21 07:58:37 -05:00 |
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Thomas Harte
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99a35266e1
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Attempted to bring frequency-switching logic into the cross-platform realm. Which for now creates an issue with the OpenGL context.
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2017-02-19 21:20:37 -05:00 |
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Thomas Harte
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600bdc9af7
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In C++, I think the implicit cast to bool negates the need for any manual collapsing?
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2017-02-12 18:18:35 -05:00 |
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Thomas Harte
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a477499724
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Got a bit more explicit with range returned by get_cycles_until_horizontal_blank and hence attempted a more thorough (/correct) version of WSYNC.
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2017-02-07 22:14:45 -05:00 |
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Thomas Harte
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92754ace7a
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Some mild fixes get me up to having a rolling screen of vertical lines. Which is what I was hoping for right now!
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2017-01-29 22:16:23 -05:00 |
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Thomas Harte
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2390358c24
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Prevented unbounded CPU usage, albeit without yet deciding who has authority for the clock rate.
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2017-01-29 14:19:26 -05:00 |
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Thomas Harte
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a246530953
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Supposing the TIA were implemented, this is (more or less) what the Atari 2600 would now look like.
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2017-01-28 21:46:40 -05:00 |
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Thomas Harte
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6d087ca054
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Restored 2600 audio.
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2017-01-25 21:29:19 -05:00 |
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Thomas Harte
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be1cb2a551
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Fixed NTSC phase.
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2017-01-11 21:31:24 -05:00 |
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Thomas Harte
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a549fd1ecc
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Introduced the ability simply to piggy-back off the CRT's natural phase for the colour burst, thereby eliminating a couple of redundant independent attempts in the Oric and Electron.
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2016-12-10 13:42:34 -05:00 |
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Thomas Harte
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ebb62a2d78
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Switched the 2600 to postfix and non-camel-case instance variable names.
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2016-12-03 14:07:38 -05:00 |
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Thomas Harte
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3361d6b93a
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Factored out the Atari 2600 speaker and adjusted it to postfix underscores.
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2016-12-03 13:39:46 -05:00 |
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Thomas Harte
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922dd6a586
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Hit up the other two kinds of audio generator.
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2016-10-07 17:10:00 -04:00 |
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Thomas Harte
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ee8510984f
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Added just enough wiring to restore the 2600 to functionality.
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2016-09-15 19:34:45 -04:00 |
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Thomas Harte
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d9016909ed
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Added some wiring for PAL/NTSC mode switching on the Vic, making an attempt to simplify the whole loop of having different clock rates.
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2016-08-14 13:33:20 -04:00 |
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Thomas Harte
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8db44eed3e
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Added a default implementation of Speaker::skip_samples.
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2016-07-04 20:48:27 -04:00 |
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Thomas Harte
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bfa237397d
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Settled on assigning to nullptr as the appropriate style for emptying shared_ptrs; fixed the Vic properly to release its output resources.
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2016-07-04 20:34:11 -04:00 |
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Thomas Harte
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88964ceac0
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Eliminated plain pointer passing for object types.
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2016-07-04 19:33:55 -04:00 |
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Thomas Harte
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0182b0483a
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Added a 'power on' flag that is set automatically at construction but can be declined. Saves all that stuff of every machine having to set and then unset the RST line, and fixes an Electron bug related to that.
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2016-06-29 19:13:24 -04:00 |
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Thomas Harte
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454e98302d
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Slight rearrangement plus a setting of the CSMachine delegate corrects audio after a clock rate change.
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2016-06-20 22:18:41 -04:00 |
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Thomas Harte
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31b26b8118
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Made a first attempt to implement the full top-to-bottom change of clock rates, giving the Atari the ability to change rate when it switches to PAL mode, as it should always have been.
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2016-06-20 21:47:27 -04:00 |
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Thomas Harte
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065ec618c4
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Factored out and templated the 6532, finally taking the opportunity to add a means to control the on-console switches of an Atari 2600.
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2016-06-19 19:36:34 -04:00 |
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Thomas Harte
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65413f078c
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Factored out the 6532, eventually to make it testable.
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2016-06-19 18:57:40 -04:00 |
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Thomas Harte
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12d1cac751
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Merge branch 'master' into Vic-20
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2016-06-10 18:23:55 -04:00 |
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Thomas Harte
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805e2d15c6
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Fixed timing when clock is divided.
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2016-06-10 18:20:16 -04:00 |
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Thomas Harte
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581eace478
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Increased logging slightly, ensured all of colour RAM can be read, slightly improved the 2600 pixel decoder.
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2016-06-07 22:01:14 -04:00 |
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