Thomas Harte
455e831b87
Corrects bug whereby changing pixel mode mid-line will produce an improper amount of data.
2020-01-02 23:18:21 -05:00
Thomas Harte
42ccf48966
Judging by Pompey Pirates Menu 88, vsync should occur a line earlier, ending during line 0.
2020-01-02 20:16:28 -05:00
Thomas Harte
2f8078db22
Switches to should_log as a global when I'm hacking about.
2020-01-02 20:15:48 -05:00
Thomas Harte
23ed9ad2de
Corrects application of negative relative scale.
2020-01-01 13:22:21 -05:00
Thomas Harte
017681a97c
Now honours permitted mouse range.
2020-01-01 12:48:38 -05:00
Thomas Harte
90b899c00e
Attempts to implement absolute mouse positioning mode.
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Along with mouse direction.
2020-01-01 12:29:33 -05:00
Thomas Harte
c11fe25537
Merge branch 'master' into EnchantedWoods
2019-12-30 23:32:45 -05:00
Thomas Harte
0a12893d63
Shunts vsync back down to top of frame.
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It's guess after guess, basically.
2019-12-30 23:01:31 -05:00
Thomas Harte
8e777c299f
Switches to latching video interrupts until acknowledged.
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Seems to fix Cisco Heat, at least. I have no idea whether I'm latching the correct thing, whether IACK should clear both or only one, etc.
2019-12-30 23:00:55 -05:00
Thomas Harte
e23d1a2958
Restores vsync active.
2019-12-29 22:03:36 -05:00
Thomas Harte
6449403f6a
Corrects pending_events_ test for sequence points.
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Simplifies around as possible.
2019-12-29 21:53:45 -05:00
Thomas Harte
c8fe66092b
Attempts to correct insertion logic (and mostly bypasses it).
2019-12-29 21:42:41 -05:00
Thomas Harte
b33218c61e
Fixes reload test, which really needs to sense the CRT-headed vsync output.
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i.e. not the one heading back to the CPU.
2019-12-29 20:55:34 -05:00
Thomas Harte
8ce26e7182
Adds a delay on vsync visibility (i.e. as to generating an interrupt).
2019-12-29 19:03:08 -05:00
Thomas Harte
47068ee081
Ensures visible hsync end generates a sequence point.
2019-12-29 17:51:50 -05:00
Thomas Harte
214b6a254a
Adds a delay on visibility of the hsync signal, and a test on address reload.
2019-12-29 17:37:09 -05:00
Thomas Harte
93f6964d8a
Introduces some preliminary line length unit tests.
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Thereby fixes one potential issue with load_ toggling.
2019-12-28 22:50:34 -05:00
Thomas Harte
13f11e071a
Simplifies border colour change propagation.
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I'm not sure it was even technically correct as was.
2019-12-28 10:45:10 -05:00
Thomas Harte
f7825dd2a2
Pulls out address reload position as a separate constant.
2019-12-28 10:36:50 -05:00
Thomas Harte
a9d1f5d925
Pulls out address reload as something I can position independently.
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Sadly receding it by 3 did not have the effect I was hoping for, of receding Enchanted Land's first register tweaking.
2019-12-27 23:47:19 -05:00
Thomas Harte
2757e5d600
Removes untrue comment.
2019-12-27 22:51:11 -05:00
Thomas Harte
5026de9653
Rejigs the video stream to ensure shifter really is continuous.
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... and definitively to avoid potential buffer overruns. Or, at least, to have a mechanism in place definitively to avoid them. Which will be tested and debugged as necessary.
Also simplifies the colour burst and border/pixels selection logic.
2019-12-27 22:47:34 -05:00
Thomas Harte
5fa8e046d8
It's inaccurrate to call this _the_ shifter. So don't.
2019-12-27 19:03:10 -05:00
Thomas Harte
de43e86310
Permits Vic-20 memory to be specified in banks; adds recognition of TheC64-style file tags to specify them.
2019-12-26 22:49:48 -05:00
Thomas Harte
a9a92de954
Adds a bunch of shout-outs for unimplemented behaviour.
2019-12-25 15:32:33 -05:00
Thomas Harte
a8ba3607b7
Adds (and disables) a minor additional piece of logging.
2019-12-24 21:43:39 -05:00
Thomas Harte
5068328a15
Fixes debugging output.
2019-12-24 19:15:58 -05:00
Thomas Harte
b2bed82da6
Switches to standard logging.
2019-12-23 22:00:40 -05:00
Thomas Harte
0dae608da5
Embraces std::make_[unique/shared] in place of .reset(new .
2019-12-23 21:31:46 -05:00
Thomas Harte
5456a4a39d
Eliminates static where constexpra aren't class members; adds some if constexprs for clarity.
2019-12-22 13:42:24 -05:00
Thomas Harte
274867579b
Deploys constexpr as a stricter const.
2019-12-22 00:22:17 -05:00
Thomas Harte
05d77d3297
Also deploys make_unique/shared to avoid type repetition.
2019-12-21 23:52:04 -05:00
Thomas Harte
e5440a4146
Hacks in a colour burst.
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With a major flaw: it's implicit. I think I need a minor rethink of various components here.
2019-12-20 23:49:38 -05:00
Thomas Harte
47508d50a7
Wires through a composite video option for the ST.
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Which is great and all, except that I've not yet inserted a colour burst. So it's monochrome.
2019-12-20 20:49:14 -05:00
Thomas Harte
3d83f5ab49
Ensures a proper size handoff and implements a ripple feature I happened to find a forum post about.
2019-12-19 22:58:07 -05:00
Thomas Harte
0007dc23b3
Eliminates bit 0 of the DMA address.
2019-12-19 22:44:21 -05:00
Thomas Harte
ed7f171736
Moves address reload to end of vertical sync.
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I have no information as to when it should be, so this is as valid a guess as any other.
2019-12-19 22:20:43 -05:00
Thomas Harte
0e066f0f70
Removes 'done' TODO.
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For certain values of done.
2019-12-19 22:19:59 -05:00
Thomas Harte
d85ae21b2f
Adds an explicit declaration of chip type to all AY users.
2019-12-18 19:28:41 -05:00
Thomas Harte
c00ae7ce6a
Adds a one-cycle delay on frequency changes.
2019-12-13 19:57:54 -05:00
Thomas Harte
4bcf217324
Ensures delayed loading isn't interrupted by blank, hsync.
2019-12-12 23:20:28 -05:00
Thomas Harte
f6f2b4b90f
Removes double DE edge test.
2019-12-12 22:50:35 -05:00
Thomas Harte
95b5db4d87
Tweaks timings yet further, adds a FIFO reset.
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The accuracy of this may require further research.
2019-12-11 23:22:20 -05:00
Thomas Harte
de4403e021
Corrects blank timing.
2019-12-10 22:17:57 -05:00
Thomas Harte
0a405d1c06
Introduces a latency between DE and load.
2019-12-10 21:24:15 -05:00
Thomas Harte
768b3709b8
Corrects audio clock rate.
2019-12-10 20:25:27 -05:00
Thomas Harte
a7cfb840ef
Adds but presently disables a diagnostic for border elimination.
2019-12-08 22:34:42 -05:00
Thomas Harte
c785797da6
Adds a warning for unhandled reset.
2019-12-08 21:01:30 -05:00
Thomas Harte
0408592ada
Switches to byte buffers and seeks to reduce unnecessary video flushing.
2019-12-08 20:20:13 -05:00
Thomas Harte
0ed87c61bd
Introduces an explicit area of floating bus, starts adding bus errors.
2019-12-08 11:52:43 -05:00
Thomas Harte
08a27bdec7
NTSC frame length is correct; removes TODO.
2019-12-08 11:51:12 -05:00
Thomas Harte
894066984c
Moves beginning and end of vertical sync to what I now believe is its proper place.
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At least one demo now successfully opens the top border.
2019-11-19 20:13:47 -05:00
Thomas Harte
e787c03530
Slightly shortens NTSC frame.
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Either: (i) 263 is incorrect; or (ii) my logic as to frame height is incorrect. Given that the horizontal side of things is really well documented, I'm currently guessing (i). Research to do.
2019-11-18 23:47:27 -05:00
Thomas Harte
c04d2f6c6e
Restricts DTack delay to RAM and Shifter accesses.
2019-11-18 22:57:13 -05:00
Thomas Harte
6990abc0d3
Tweaks selected output mode when both BPP bits are set.
2019-11-18 22:56:40 -05:00
Thomas Harte
ade8df7217
Permits a delay on DE propagation back to the CPU. Plus tests.
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Currently set at 28 cycles, but I don't know.
2019-11-18 22:12:24 -05:00
Thomas Harte
82c984afa4
Switches the joysticks around.
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Thereby finally allowing me to control mode games.
2019-11-18 20:02:27 -05:00
Thomas Harte
1202b0a65f
Establishes a pipeline for delayed public state visibility.
2019-11-17 23:28:00 -05:00
Thomas Harte
facc0a1976
Amps up the documentation.
2019-11-17 21:28:51 -05:00
Thomas Harte
253dd84109
Corrects accidental dropping of pixel residue.
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Specific issue: the repeated (start_column != end_column) test, which can no longer be correct if start_column has been incremented in the (x_&7) test.
The visible effect was to omit pixels from the output wave, which also affected observed sync timing.
2019-11-17 18:34:13 -05:00
Thomas Harte
2c4f372872
Adds support for the .ST file format.
2019-11-12 23:23:14 -05:00
Thomas Harte
f4cfca0451
Merge branch 'master' of github.com:TomHarte/CLK
2019-11-12 19:38:44 -05:00
Thomas Harte
eb287605f7
Switches to a default of TOS 1.04.
2019-11-12 19:38:30 -05:00
Thomas Harte
6a82c87320
Withdraws border optimisation temporarily; I think I may be onto an output bug here.
2019-11-12 19:33:13 -05:00
Thomas Harte
f0478225f0
Adjusts logic to reduce number of output spans.
2019-11-12 19:30:28 -05:00
Thomas Harte
c6f6bc68e1
Undoes non-insertion of media.
2019-11-10 21:52:06 -05:00
Thomas Harte
ab34fad8ca
Introduces a cleaner, separated shifter.
2019-11-10 21:39:40 -05:00
Thomas Harte
7ae0902103
Adds additional joystick commands to the dispatcher.
2019-11-09 20:10:54 -05:00
Thomas Harte
8e9428623e
Adds joystick events to the Atari ST.
2019-11-09 18:39:22 -05:00
Thomas Harte
2c25135d8a
Fixes const correctness for joystick machines; the ST is now one such.
2019-11-09 18:19:05 -05:00
Thomas Harte
860837d894
Corrects: KeyPad -> Keypad. Also fleshes out Atari ST keyboard mapping.
2019-11-09 18:02:14 -05:00
Thomas Harte
0204003680
Resolves GCC warnings.
2019-11-09 16:12:37 -05:00
Thomas Harte
77ef7dc8fc
Shuffles ST and 2600 into a common parent.
2019-11-09 15:31:41 -05:00
Thomas Harte
e3abbc9966
Renames what didn't end up being a whole SerialPort.
2019-11-09 15:21:51 -05:00
Thomas Harte
70c6010fe0
Expands visible area and adds a few more safety barriers.
2019-11-09 15:00:42 -05:00
Thomas Harte
45375fb5d0
Makes endian aware.
2019-11-09 09:48:59 -05:00
Thomas Harte
d2324e413d
Clarifies ownership of bpp-has-changed test.
2019-11-09 00:10:59 -05:00
Thomas Harte
e0c15f43bb
Avoids massive over-flushing of pixel buffers.
2019-11-09 00:05:02 -05:00
Thomas Harte
8b0d550b81
Attempts to move vertical sync out to cycle 30.
2019-11-08 22:18:47 -05:00
Thomas Harte
d1259f829e
Moves vertical state decisions back to cycle 502.
2019-11-08 21:42:05 -05:00
Thomas Harte
7caef46c05
Switches back to hsync for interrupts; corrects current address reads.
2019-11-08 21:25:28 -05:00
Thomas Harte
6902251d8b
Fixed: returns video address in bytes, not words.
2019-11-08 20:47:08 -05:00
Thomas Harte
0b683b0360
Adds some sanity checks.
2019-11-08 20:46:24 -05:00
Thomas Harte
5d5dc79f2c
Corrects raster race condition with CPU.
2019-11-07 23:27:05 -05:00
Thomas Harte
b7c407be10
The palette is meant to be read/write.
2019-11-07 23:11:06 -05:00
Thomas Harte
f45798faf0
Corrects initial safe value of line_length_.
2019-11-07 22:53:26 -05:00
Thomas Harte
7c66d7a13c
Corrects sync and line-length latch timings.
2019-11-07 22:53:04 -05:00
Thomas Harte
5e1570258d
I think the horizontal interrupt is blank, not sync.
2019-11-07 22:00:50 -05:00
Thomas Harte
fc8021c0b0
Adds a centre crop.
2019-11-07 20:02:45 -05:00
Thomas Harte
c9cd56915e
Corrects typo that was adding an extra line of PAL video.
2019-11-07 19:55:49 -05:00
Thomas Harte
1fd19c5786
Attempts to add proper bus timing.
2019-11-07 19:55:00 -05:00
Thomas Harte
ce66b5fd9c
Corrected member variable names.
2019-11-07 19:44:22 -05:00
Thomas Harte
8aa425c9d8
Fixes medium resolution mode.
2019-11-06 23:25:36 -05:00
Thomas Harte
ec68bc5047
Corrects output glitches: channel de sync and improper border beginnings.
2019-11-06 22:37:05 -05:00
Thomas Harte
0ce807805d
Eliminates most masks, at least for now.
2019-11-05 23:17:59 -05:00
Thomas Harte
41f3c29e30
Attempts to switch to correct video state machine.
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Some glitches remain to be ironed out.
2019-11-05 23:02:25 -05:00
Thomas Harte
8df1eea955
Goes big on flushing.
2019-11-03 23:03:50 -05:00
Thomas Harte
eeafdf2c03
Slightly expands list of recognised Intelligent Keyboard commands.
2019-11-03 21:58:15 -05:00
Thomas Harte
befe2c2929
Adds floppy drive activity indicators.
2019-11-03 21:57:54 -05:00
Thomas Harte
e9965c2738
Obeys stated memory size.
2019-11-03 21:18:17 -05:00
