Thomas Harte
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c3144382c5
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Shuffles the Disk II ROM at load time into B.A.P. form.
Only if required. In order to support various potential forms of supplied ROM.
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2018-05-09 22:03:59 -04:00 |
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Thomas Harte
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c3a2f7717b
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Makes attempt to implement support for the Pravetz 8D + 8DOS.
i.e. the Disk II wired up to the Oric, with some ROM swaps.
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2018-05-08 22:05:43 -04:00 |
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Thomas Harte
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f65c65569a
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Makes disk head position explicitly something with sub-integral precision.
Also as a drive-by fix, corrects accidental assumption of 10 sectors for all MFMSectorDump descendants.
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2018-05-06 23:17:36 -04:00 |
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Thomas Harte
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aacf26f05d
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Removed logged comment.
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2018-04-30 22:03:09 -04:00 |
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Thomas Harte
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10c0e687f5
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Attempts to introduce sleeping for the Disk II.
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2018-04-29 17:51:10 -04:00 |
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Thomas Harte
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41075356e2
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Makes a first attempt at NIB support.
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2018-04-26 22:49:07 -04:00 |
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Thomas Harte
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d59db504a3
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Adjusted stepper logic; some disks load now.
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2018-04-25 21:59:18 -04:00 |
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Thomas Harte
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4c6dc597f4
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Converts Time::get into a template, introduces a via-a-double fallback for the timed event loop.
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2018-04-25 19:54:39 -04:00 |
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Thomas Harte
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7061537ff5
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Makes joined-up attempt to run data through the Disk II.
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2018-04-24 19:44:45 -07:00 |
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Thomas Harte
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99de8f1c5c
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Inverts the pulse strobe.
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2018-04-24 09:03:03 -07:00 |
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Thomas Harte
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af61bbc3e2
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Attempts actual performance of the state machine.
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2018-04-24 08:29:05 -07:00 |
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Thomas Harte
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56d88f23ef
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Teeters closer and closer to trying actually to run the Disk II state machine.
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2018-04-23 22:29:36 -07:00 |
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Thomas Harte
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4bff44377a
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Attempts to route Disk II requests to the thing itself.
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2018-04-23 22:11:31 -07:00 |
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Thomas Harte
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e87a3cffd4
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Merge branch 'master' into DiskII
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2018-04-21 15:02:18 -07:00 |
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Thomas Harte
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5968c9a391
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Corrects Apple II output audio.
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2018-04-21 14:56:50 -07:00 |
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Thomas Harte
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72bc5f8d7b
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Adds a class to contain the Disk II and begins Apple GCR conversion routines.
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2018-04-21 14:33:42 -07:00 |
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Thomas Harte
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f22c23cb4c
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Attempts to bring audio to the Apple II.
By factoring the audio toggle out from the MSX.
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2018-04-17 22:28:13 -04:00 |
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Thomas Harte
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1c605d58e3
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Removes the CRT requirement for an integral relationship between cycles and samples.
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2018-04-16 20:00:56 -04:00 |
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Thomas Harte
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467cd5450f
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Adjusts PAL Vic timing.
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2018-04-12 21:12:09 -04:00 |
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Thomas Harte
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428b6145fa
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Converts 6560 to more project normative templated form.
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2018-04-11 22:00:42 -04:00 |
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Thomas Harte
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4c8a68c6a4
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Implements late-0 with proper timing, and NTSC interlaced raster count timing.
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2018-04-11 08:00:37 -04:00 |
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Thomas Harte
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0b4b6f4aec
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Tweaks luminances and reintroduces late-to-zero line counts.
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2018-04-10 23:05:18 -04:00 |
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Thomas Harte
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cf6f6c5c15
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Eliminates the full_frame_counter_ and slightly tweaks NTSC raster timing.
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2018-04-08 18:51:20 -04:00 |
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Thomas Harte
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f541986333
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Switches to more normative preincrement.
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2018-04-08 18:50:42 -04:00 |
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Thomas Harte
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1c5972f7b0
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Ensures NTSC raster count rollover; previously it was positing a line '261' for half of '0'.
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2018-04-08 16:18:41 -04:00 |
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Thomas Harte
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3e846f89a1
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Introduces different clipping zones for NTSC and PAL output.
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2018-04-05 21:25:19 -04:00 |
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Thomas Harte
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60c1da6a66
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Causes the 6560 to obey set_sample_volume_range.
Thereby resolves a clipping issue.
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2018-04-05 21:04:46 -04:00 |
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Thomas Harte
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0ee40e8556
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Reintroduces 90% crop for VIC output.
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2018-03-31 20:57:45 -04:00 |
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Thomas Harte
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912791d3d4
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Causes the s-video path correctly to function.
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2018-03-30 18:24:18 -04:00 |
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Thomas Harte
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163a61dd63
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Corrects SVideo-as-composite output; the Atari and Vic-20 now both supply svideo.
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2018-03-30 13:16:18 -04:00 |
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Thomas Harte
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33281b9d89
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Introduces S-Video as a video signal type at the interface level.
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2018-03-30 10:25:41 -04:00 |
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Thomas Harte
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e1aa3e5a7f
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Imports chrominances from the TED documentation. They seem to apply to the VIC-I also.
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2018-03-29 20:04:37 -04:00 |
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Thomas Harte
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3b26e0a7c5
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Tweaks NTSC colour generation.
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2018-03-26 21:22:06 -04:00 |
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Thomas Harte
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a776bec46a
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Tweaks PAL colours for the 6560 to be closer to screenshots found online.
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2018-03-26 19:02:16 -04:00 |
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Thomas Harte
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a301964bd0
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Ensures all audio queues are fully merged before machine destruction.
Thereby avoids a race condition.
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2018-03-22 21:59:19 -04:00 |
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Thomas Harte
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48737a32a7
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Introduces formal setting of the output volume to SampleSource.
Previously every output device was making its own decision. Which is increasingly less sustainable due to the CompoundSource.
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2018-03-09 13:23:18 -05:00 |
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Thomas Harte
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705d53cc21
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Picks a phase for the TMS empirically.
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2018-03-03 13:53:00 -05:00 |
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Thomas Harte
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3c5a8d9ff3
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Adds Super Game Module support for the ColecoVision.
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2018-03-03 13:08:33 -05:00 |
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Thomas Harte
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ea13c7dd32
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Implements multicolour mode on the TMS.
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2018-03-02 23:08:01 -05:00 |
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Thomas Harte
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86239469e7
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Allows SN76489 consumers to apply an additional divider that reduces computation.
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2018-03-01 18:51:05 -05:00 |
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Thomas Harte
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7890506b16
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Gives the SN76489 its proper dividers and personalities.
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2018-02-28 22:36:03 -05:00 |
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Thomas Harte
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5b854d51e7
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Corrects out-of-bounds access.
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2018-02-27 22:45:45 -05:00 |
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Thomas Harte
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d4df101ab6
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Makes a first attempt at implementing the SN76489.
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2018-02-27 22:25:12 -05:00 |
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Thomas Harte
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0ad2676640
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Adds a class for the SN76489 and wires it into the ColecoVision.
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2018-02-26 22:04:34 -05:00 |
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Thomas Harte
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cabad6fc05
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Optimises the inner TMS loops slightly.
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2018-02-21 21:29:17 -05:00 |
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Thomas Harte
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2fe0ceb52a
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Sets TMS input gamma.
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2018-01-13 22:19:41 -05:00 |
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Thomas Harte
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2f59226300
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Fixes: DiskROM drive motor control, track_for_sectors' sides.
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2018-01-07 20:02:40 -05:00 |
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Thomas Harte
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793ef68206
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Implements unconditional force interrupt for the WD.
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2018-01-07 19:42:38 -05:00 |
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Thomas Harte
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2ffde4c3c2
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Corrects SCC volume errors.
Which were leading to substantial overflow.
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2018-01-07 09:59:00 -05:00 |
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Thomas Harte
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57ddfcd645
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Corrects AY counter type.
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2018-01-06 23:16:01 -05:00 |
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Thomas Harte
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fc16e8eb8c
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Makes first attempt at actually implementing the SCC.
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2018-01-06 23:15:42 -05:00 |
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Thomas Harte
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655b971976
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Establishes that there is such as a thing as a Konami SCC.
Creates one, ensures it appears in memory when intended to, lets it handle reads and writes. It currently does nothing.
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2018-01-06 20:15:55 -05:00 |
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Thomas Harte
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bcc7ad0c30
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Corrects bad TMS sprite selections on the top row of the screen.
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2018-01-06 16:26:11 -05:00 |
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Thomas Harte
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2dc1d4443e
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Separates LowpassFilter and SampleSource.
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2017-12-18 21:39:23 -05:00 |
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Thomas Harte
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f8a2459c91
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Corrects two lingering adaptation errors in the Vic-20.
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2017-12-17 21:43:08 -05:00 |
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Thomas Harte
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ac80d10cd8
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Separates the component parts of running an audio stream: task deferral, filtering and generation.
Walking towards improving opportunities for composition.
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2017-12-17 21:26:06 -05:00 |
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Thomas Harte
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ec4c259695
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Removes unused file.
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2017-12-14 21:19:09 -05:00 |
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Thomas Harte
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ad50b6b1fb
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Corrects TMS' get_time_until_interrupt when the next interrupt is exactly a frame away.
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2017-12-14 21:12:51 -05:00 |
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Thomas Harte
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3da323c657
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Corrects lingering free TMS read.
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2017-12-14 20:30:56 -05:00 |
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Thomas Harte
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aca7842ca4
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Better documents and tidies the TMS9918.
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2017-12-14 20:27:26 -05:00 |
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Thomas Harte
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c36de4f640
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Attempts real VRAM access timings, correcting a frame timing error as I go.
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2017-12-13 22:37:27 -05:00 |
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Thomas Harte
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5d0c33d545
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Corrects occasional TMS sprite glitching.
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2017-12-12 22:19:33 -05:00 |
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Thomas Harte
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b0616ee10c
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Adds one-before-the-graphics as a line for video collection.
Thereby corrects sprites on line 0.
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2017-12-12 21:35:33 -05:00 |
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Thomas Harte
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798cdba979
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8255: update_outputs now affects only those ports designated as outputs.
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2017-12-10 17:55:37 -05:00 |
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Thomas Harte
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f957344ac4
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Corrects TMS failure to show background through tile layer.
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2017-12-09 23:15:04 -05:00 |
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Thomas Harte
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b3fbd0f352
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Tidies up some of the TMS' magic constants.
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2017-12-09 23:08:07 -05:00 |
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Thomas Harte
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042edc72f7
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Adjusts TMS declared timing so as to be in-phase with an NTSC clock, and adopts an alternative palette.
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2017-12-09 22:28:34 -05:00 |
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Thomas Harte
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943418c434
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Reformulates TMS sprite plotting to set the collision flag and to support magnified sprites.
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2017-12-09 20:30:12 -05:00 |
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Thomas Harte
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7d7e2538bd
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Introduces a computationally simplified inner loop for TMS graphics modes, modelled on that for text.
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2017-12-09 16:02:33 -05:00 |
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Thomas Harte
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7a544731e2
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Makes minor tidiness improvements to the TMS.
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2017-12-08 22:20:21 -05:00 |
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Thomas Harte
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e1914b4f16
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Attempts to add a proper intermediate buffer for sprites to allow the split of collection and output.
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2017-12-08 22:12:39 -05:00 |
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Thomas Harte
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8653eb8b55
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Corrects various latent errors in optimised TMS video collection.
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2017-12-06 20:24:29 -05:00 |
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Thomas Harte
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a4f0a260fd
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Reformulates the TMS graphics mode fetch loop to try to eliminate heavy conditionality. Temporarily introduces some sprite selection issues.
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2017-12-05 22:39:03 -05:00 |
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Thomas Harte
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d4a53e82bb
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Replaces manual retread of memcpy with standard memcpy.
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2017-12-05 18:21:34 -05:00 |
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Thomas Harte
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6eedc99286
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Makes substantial optimisations to text mode.
Character optimisations to come.
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2017-12-04 22:18:51 -05:00 |
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Thomas Harte
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a473338abe
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Makes minor type conversion fixes.
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2017-12-03 22:24:48 -05:00 |
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Thomas Harte
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ad3df36c20
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Corrects sprite information collection to cover all four.
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2017-12-03 14:51:55 -05:00 |
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Thomas Harte
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38b11893e8
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Takes first steps towards sprite display on the TMS.
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2017-12-02 22:13:43 -05:00 |
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Thomas Harte
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e4534775b0
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Cleans up and zooms in on the TMS slightly.
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2017-12-02 17:48:31 -05:00 |
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Thomas Harte
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fe0cdc8d69
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Corrects colour fetching in TMS Graphics II to be a function of row.
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2017-12-02 16:10:29 -05:00 |
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Thomas Harte
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ca26ce8400
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Slightly corrects style errors in the Cartridge hierarchy, and introduces mapping of .ROM to the MSX when appropriate.
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2017-12-02 16:01:30 -05:00 |
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Thomas Harte
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d3dd8f3f2a
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Implements screen 2 addressing.
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2017-12-02 14:05:52 -05:00 |
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Thomas Harte
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3c8d2d579d
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Resolves remaining sources of text mode instability.
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2017-11-30 22:48:07 -05:00 |
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Thomas Harte
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edcbb3dfed
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Tidies code a little and thereby uncovers and corrects one cause of output instability.
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2017-11-30 22:19:53 -05:00 |
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Thomas Harte
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9c8158753e
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Makes a first attempt at displaying text mode.
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2017-11-30 21:35:26 -05:00 |
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Thomas Harte
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ee84f33ab5
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Ensures that the 9918 admits that it is the source of interrupts.
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2017-11-29 21:33:43 -05:00 |
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Thomas Harte
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aa4eef41d8
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Seeks to introduce MSX interrupts.
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2017-11-29 20:31:55 -05:00 |
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Thomas Harte
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ecd7d4731b
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Advances emulation to showing what looks like appropriate text on screen.
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2017-11-28 21:27:15 -05:00 |
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Thomas Harte
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563aa051e4
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Simplifies code a little and gives something on screen.
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2017-11-28 21:19:28 -05:00 |
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Thomas Harte
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642bb8333f
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Introduces something of a first attempt at graphics collection and display. An unsuccessful attempt.
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2017-11-28 21:10:30 -05:00 |
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Thomas Harte
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c558e86e03
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Adds border colour output.
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2017-11-27 22:05:40 -05:00 |
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Thomas Harte
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dbb14ea2e2
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Corrects counting deficiencies that could produce an unstable display.
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2017-11-27 21:36:12 -05:00 |
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Thomas Harte
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173e16b107
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Corrects the 9918 so that it terminates.
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2017-11-27 19:48:04 -05:00 |
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Thomas Harte
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7d2adad67e
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Adds the absolute most basic version of in-frame time keeping, to display a white square.
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2017-11-27 19:43:33 -05:00 |
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Thomas Harte
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d33612def5
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Ensures the MSX provides a clock to the VDP.
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2017-11-26 20:07:30 -05:00 |
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Thomas Harte
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9cb6ca3440
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Adds elementary decoding of VDP accesses.
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2017-11-26 20:01:11 -05:00 |
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Thomas Harte
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0eb5dd9688
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Introduces the fundamentals of bus routing for the MSX.
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2017-11-26 16:47:59 -05:00 |
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Thomas Harte
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a14b53a9ab
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Adds a TMS9918 skeleton plus enough in the MSX to get to a blank screen in SDL/kiosk mode.
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2017-11-26 13:28:26 -05:00 |
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Thomas Harte
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c827d14d97
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Corrects various GCC warnings across the 6560, CPC, TIA, Oric video and elsewhere.
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2017-11-12 17:17:27 -05:00 |
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Thomas Harte
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5408efe9b5
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Flags obvious default options within the 6560, Vic-20 and DynamicMachine.
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2017-11-12 16:41:09 -05:00 |
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