Thomas Harte
085529ed72
Makes the shifter behaviour conform to its documentation.
2020-02-02 17:26:39 -05:00
Thomas Harte
ff39f71ca0
Eliminates meaningless constants from the Macintosh video's CRT setup.
2020-01-30 23:29:04 -05:00
Thomas Harte
019474300d
Centralises responsibility for picking irrelevant numbers for a computer-style monitor.
2020-01-30 23:26:02 -05:00
Thomas Harte
af976b8b3d
Eliminates modulus operation per ROM access.
2020-01-30 23:09:24 -05:00
Thomas Harte
f3db1a0c60
Eliminates ad hoc scheduling for delayed DE -> LOAD.
2020-01-29 22:50:22 -05:00
Thomas Harte
ce28213a5e
[Mostly] unifies deferral process.
2020-01-29 22:46:08 -05:00
Thomas Harte
f9ce50d2bb
Adds some debugging `asserts.
2020-01-29 22:45:44 -05:00
Thomas Harte
f0a6e0f3d5
Splits out the queue management stuff from queue+action.
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Temporarily breaks ST video in the endeavour.
2020-01-29 22:18:41 -05:00
Thomas Harte
0e29c6b0ab
On further reflection, I think events should occur after the running period.
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I'm testing this now for sanity in 2/4bpp mode.
2020-01-28 23:26:37 -05:00
Thomas Harte
c5edc879b6
Switches back to testing the monochrome monitor.
2020-01-28 22:12:57 -05:00
Thomas Harte
65309e60c4
Corrects sequence point generation by allowing for hsync_end != end of line.
2020-01-28 20:38:20 -05:00
Thomas Harte
2c0cab9e4d
Adds line length latching as a line event.
2020-01-28 20:22:37 -05:00
Thomas Harte
b1ff031b54
Fixes runtime test.
2020-01-27 23:41:08 -05:00
Thomas Harte
7e8405e68a
Makes 72Hz horizontal sync independently relocatable.
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... and moves and shortens it, based on my guesswork as to requirements.
2020-01-27 23:40:01 -05:00
Thomas Harte
c8fd00217d
Resolves loss of horizontal resolution in 1bpp mode.
2020-01-27 23:08:28 -05:00
Thomas Harte
9d340599a6
Towards ST 1bpp support: puts vsync in an appropriate location, starts experimenting with proper CRT timings.
2020-01-27 23:00:30 -05:00
Thomas Harte
7316a3aa88
Merge branch 'master' into FinalOverride
2020-01-26 23:42:25 -05:00
Thomas Harte
b514756272
Adds the option to run machines at a multiple of their real speeds.
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Exposed to SDL users only, for now.
2020-01-26 13:25:23 -05:00
Thomas Harte
79bb0f8222
Updates comment.
2020-01-26 11:36:06 -05:00
Thomas Harte
43bf6aca67
Corrects reported scan status for the Amstrad CPC.
2020-01-25 23:46:18 -05:00
Thomas Harte
03d23aad41
Corrects reported ZX80/81 scan status.
2020-01-25 23:27:09 -05:00
Thomas Harte
294e09f275
All these 'override's can be 'final's.
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At least for the purpose of being communicative. I doubt there's much to gain in terms of compiler output — the DiskImageHolder can avoid some virtual lookups but nothing else leaps out.
2020-01-23 22:57:51 -05:00
Thomas Harte
ba516387ba
In all these instances, final => override. So no need to repeat myself.
2020-01-23 22:35:39 -05:00
Thomas Harte
9136917f00
Enables the Oric for 50/60Hz mode switching, inventing PAL60 for the purpose.
2020-01-23 22:14:02 -05:00
Thomas Harte
6802318784
Removes audio_queue_.flush() calls; I don't think I really need to block. At least, not usually.
2020-01-23 20:13:16 -05:00
Thomas Harte
428d141bc9
Factors out the logic behind the Atari 2600's frequency switching.
2020-01-23 20:12:44 -05:00
Thomas Harte
a86fb33789
Ensures that the ColecoVision, MSX and Master System fully flush.
2020-01-22 22:57:16 -05:00
Thomas Harte
beefb70f75
Adds vertical sync as something that can be run_until.
2020-01-22 22:20:56 -05:00
Thomas Harte
8404409c0d
Causes the Atari 2600 to obey normal flush semantics.
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This stuff is going to become more important with run_until.
2020-01-22 22:05:51 -05:00
Thomas Harte
a71c5946f0
Ensures proper manipulation of scan_statuses, leading to the correct result out of a CRTMachine.
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Possibly with the exception of the TMS, as I appear to have uncovered an unrelated issue there.
2020-01-21 22:28:25 -05:00
Thomas Harte
d97a073d1b
Adds the necessary routine for all machines to be able to respond to get_scan_status.
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They all just as the CRT, as all are currently based on the CRT. Which doesn't currently know the total clock rate it would need to in order properly to scale the answer to the question. Further thought coming.
2020-01-20 21:45:10 -05:00
Thomas Harte
3c760e585a
Switches to accepting a bit mask of events to run_until.
2020-01-20 16:08:21 -05:00
Thomas Harte
cb61e84868
Starts building out higher-level run_until functionality.
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Specifically: you can now run until the next set of speaker samples has been delivered.
2020-01-20 12:12:23 -05:00
Thomas Harte
8349005c4b
Adds CRTMachine::run_until, which will run until a condition is true.
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I want to get to being able to say "run until the beam is 60% of the way down", "run until a new packet of audio has been delivered", etc.
2020-01-19 23:52:47 -05:00
Thomas Harte
d30f83871d
Corrects Jasmin activity light.
2020-01-16 22:59:43 -05:00
Thomas Harte
efd684dc56
Opts the BD-500 in for modified Shugart RDY.
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Hopefully this is correct. I'm presently mystified as to other options.
2020-01-16 21:34:57 -05:00
Thomas Harte
1972ca00a4
Fixes quick-NTSC-avoidance fix.
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I suspect this is very temporary, but here it is.
2020-01-16 00:01:16 -05:00
Thomas Harte
c606931c93
Ensures a safe default-selected drive.
2020-01-15 23:56:44 -05:00
Thomas Harte
93cecf0882
Ensures no possible initial NTSC, removes printfs.
2020-01-15 23:47:45 -05:00
Thomas Harte
aac3d27c10
Adds activity indicators for the BD-500 and Jasmin.
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Also slightly cleans up DiskController a little further.
2020-01-15 23:39:15 -05:00
Thomas Harte
91fae86e73
Factors out paging, implements a bit more of the BD500.
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That is, enough seemingly fully to work, if I force the drive to report ready.
2020-01-15 23:15:39 -05:00
Thomas Harte
f5c194386c
Ties head load to ready.
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BD-DOS no longer perpetually retries.
2020-01-14 23:45:36 -05:00
Thomas Harte
62c3720c97
Adds status register and shout-outs on other address access.
2020-01-14 23:24:11 -05:00
Thomas Harte
f258fc2971
Adds enough of a BD500 for the boot sector seemingly to load.
2020-01-14 23:15:27 -05:00
Thomas Harte
6b84ae3095
Makes the Microdisc also a DiskController, and simplifies delegate interface.
2020-01-14 22:53:27 -05:00
Thomas Harte
5dd8c677f1
Factors out from the Jasmin the stuff that I'm going to need to repeat for the BD-500.
2020-01-14 22:23:00 -05:00
Thomas Harte
3ced31043a
Makes Jasmin autoboot optional, adds a Jasmin reset key, adds the Jasmin to File -> New... .
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Also finally implements KeyNMI.
2020-01-05 21:57:33 -05:00
Thomas Harte
7361e7ec34
Fixed: the issue was failing to propagate motor control.
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Also it seems to be incorrect to have the Jasmin paged at initial boot.
2020-01-05 21:35:20 -05:00
Thomas Harte
533729638c
It seems like Jasmin paged in at boot, and button = page back in and reset works?
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At least, that gets me a 'boot failed' error. Which is something.
2020-01-05 20:34:15 -05:00
Thomas Harte
9f30be1c13
Attempts to implement most of a Jasmin disk interface.
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With one obvious omission: there's no way to start it? The real interface had a dedicated button, but I don't yet know what that button did. Research needed.
2020-01-05 20:05:55 -05:00
