Thomas Harte
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63107cd492
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Tidied, very slightly.
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2016-12-15 19:49:25 -05:00 |
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Thomas Harte
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a555c5762a
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Rearranged code, hopefully into a more logical grouping.
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2016-12-15 19:47:04 -05:00 |
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Thomas Harte
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4a7ddaf2e9
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Added documentation and a quick note to self.
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2016-12-15 19:43:04 -05:00 |
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Thomas Harte
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f61176cd7d
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Reinstituted something of the don't-do-pixel-work-until-an-affecting-write-occurs optimisation.
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2016-12-15 19:20:14 -05:00 |
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Thomas Harte
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c1c70a767a
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Attempted fully to reinstate proper timing.
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2016-12-15 18:52:16 -05:00 |
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Thomas Harte
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0326316bb8
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Reinstated whole-frame counting. Thereby to reinstate proper interrupts.
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2016-12-15 18:09:49 -05:00 |
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Thomas Harte
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b58b11fc93
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Switched to a table-based dispatch of line-by-line actions, primarily to simplify.
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2016-12-15 18:07:46 -05:00 |
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Thomas Harte
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fd541e1142
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An early draft; dealing with the issue that not all cycles are necessarily consumed in a single call. Incomplete; broken. Committing for cross-machine visibility.
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2016-12-12 08:01:10 -05:00 |
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Thomas Harte
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be7e05e109
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Started attempting to move total responsibility for display-related interrupts and RAM timing into the video.
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2016-12-11 18:34:49 -05:00 |
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Thomas Harte
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c5cf8d9531
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Ensured the video subsystem correctly handles requests to run over a frame boundary.
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2016-12-11 16:17:51 -05:00 |
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Thomas Harte
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52028432e1
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Restored some semblance of output.
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2016-12-10 22:19:10 -05:00 |
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Thomas Harte
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0aae1bd1ef
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Fixed calculation of termination cycle.
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2016-12-10 21:35:41 -05:00 |
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Thomas Harte
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c43e481a33
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Started factoring video out of the Electron.
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2016-12-10 21:07:52 -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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eb3a1fbfb7
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Commuted remaining Electron underscores. It would be nice also to factor out the video, but the time hasn't come yet.
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2016-12-03 13:01:01 -05:00 |
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Thomas Harte
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4fac538a57
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Factored out the Electron's speaker and adjusted instance variable naming.
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2016-12-03 12:41:02 -05:00 |
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Thomas Harte
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d1d93829cf
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Factored out the Tape and switched it to postfix underscores.
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2016-12-03 12:18:08 -05:00 |
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Thomas Harte
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2003b514aa
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Switched the typer to postfix underscores.
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2016-12-03 10:55:50 -05:00 |
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Thomas Harte
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2f459690d4
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It would appear the 1770 and 1773 actually differ in relation to the (non-sensical) ability not to spin-up for a Type 2, and whether a side compare can occur. So the WD1770 class now requires a personality to be specified. Which it singly fails to honour.
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2016-11-26 23:29:30 +08:00 |
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Thomas Harte
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09f965e6a9
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Fixed potential bug whereby inserting a disk into a drive that hadn't been lazily allocated yet but had already been selected wouldn't take effect.
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2016-11-22 08:11:57 +08:00 |
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Thomas Harte
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311f8c0b47
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Restored audio.
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2016-11-16 11:10:07 +08:00 |
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Thomas Harte
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45b169f341
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Made a few mapping fixes, clarified where the default reset code lives, ensured the Oric and Vic clear their keys when the typer ends.
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2016-11-05 15:28:03 -04:00 |
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Thomas Harte
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338904fffe
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Made similar cleanings of the Electron and Vic.
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2016-11-05 15:07:57 -04:00 |
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Thomas Harte
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9fb9d92437
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Made the typer much more able to help out, and thereby tidied and separated the Oric's typer.
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2016-11-05 14:47:09 -04:00 |
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Thomas Harte
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7843a244b0
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Ensured emulation doesn't enter an infinite loop if the user attempts to read beyond the end of a tape.
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2016-10-28 22:23:25 -04:00 |
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Thomas Harte
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4a062c616f
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Added enough wiring to get Oric TAPs through to a completely unimplemented Oric emulation.
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2016-10-11 22:20:13 -04:00 |
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Thomas Harte
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de658b70d7
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That's thread safety, subject to the async task queue being made to work...
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2016-10-07 17:02:36 -04:00 |
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Thomas Harte
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2d26feb073
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Added mappings for the previously-missing characters @, [ and ].
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2016-10-04 22:03:53 -04:00 |
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Thomas Harte
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f9ee6803df
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It's likely this should be set at startup too, based on latest info.
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2016-10-03 22:16:10 -04:00 |
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Thomas Harte
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97304e22f0
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Adjusted per tests on StarDot; it appears the tape interrupts may fire during audio output, as if in tape output mode.
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2016-10-03 20:03:14 -04:00 |
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Thomas Harte
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dae6b45464
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Ensured the always-on bit of the interrupt status register is indeed on.
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2016-10-03 19:15:31 -04:00 |
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Thomas Harte
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79412dc84d
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Upped MFM clock cycles, switched back to using the typer for the ADFS and adjusted ADFS ROM slots.
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2016-09-28 21:28:34 -04:00 |
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Thomas Harte
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4db086949a
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Made an attempt to add MFM decoding to the 1770; ensured something is returned when reading the Plus 3 status register again.
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2016-09-25 21:38:52 -04:00 |
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Thomas Harte
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572d5587d9
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Made a first stab at enabling multi-disk machines and thereby obeying (some of) the Plus 3's status register.
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2016-09-25 21:24:16 -04:00 |
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Thomas Harte
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9bbcbd1001
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Renamed class, intending to turn a Disk::Drive into literally just that, and have a thing with a PLL that consumes events be a Controller.
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2016-09-25 20:05:56 -04:00 |
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Thomas Harte
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7f4c78139c
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Attempted to ensure that ADFS disks get to an appropriately-configured Electron. Not immediately sure why the shift press isn't working; doesn't need to be dealt with immediately.
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2016-09-25 19:59:46 -04:00 |
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Thomas Harte
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6084020ab3
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Added shift-break as a better way to boot suitable disks. Continued attempting to clean the 1770.
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2016-09-25 14:11:22 -04:00 |
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Thomas Harte
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ce4100e5b9
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Fixed slots for DFS and ADFS to sideways RAM; continued working on the 1770 to get as far as trying to get the body of a sector.
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2016-09-24 22:04:54 -04:00 |
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Thomas Harte
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8db0030068
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Fixed ROM loading by the Electron, turned the WD1770 into a 'disk drive' (it'll do for now), persuaded it to get all the way through a very specifically convenient type 1 command.
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2016-09-20 22:14:33 -04:00 |
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Thomas Harte
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3b97b038b9
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Corrected and sketched out state machine far enough to get to a complaint about unhandled work.
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2016-09-20 15:56:31 -04:00 |
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Thomas Harte
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e358057440
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Added a WD1770 run_for_cycles call. So I really can now move that as far as reporting that it has no disk?
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2016-09-20 07:42:17 -04:00 |
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Thomas Harte
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cd5939501f
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Treading water some more, ensured the DFS and ADFS ROMs get to the Electron. It now even inserts the DFS ROM if it has a DFS disk image. Might need to make it a sideways RAM though? Regardless, the next job surely — surely! — has to be to stop avoiding the 1770?
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2016-09-20 07:36:57 -04:00 |
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Thomas Harte
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a9e65e9b7a
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Tweaked disk side density, added call-outs to a WD1770 if the Electron had one (albeit without run_for_cycles yet as I need to figure out the clock rate), added a shell of the basic functions of the WD1770. No implementation yet.
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2016-09-19 22:06:56 -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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8c84f3581a
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Attempted to bring some uniformity in application of configurations.
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2016-09-08 05:32:17 -04:00 |
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Thomas Harte
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21e5f407d8
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I need to get a bit more definitive on naming but this gets all the way to setting a configuration upon an Electron.
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2016-08-31 22:03:42 -04:00 |
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Thomas Harte
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c0402d0c2b
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Gave tapes their own namespace.
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2016-08-27 17:09:45 -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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5d40d70c92
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Fixed 6560 addressing error, added an autotyper for Vic disks (more work potentially needed), fixed semantics for testing whether a 6502 is about to reset.
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2016-08-01 10:32:32 -04:00 |
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Thomas Harte
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2332f72875
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Formalised clock-rate multiplication within disk drives, discovered that the stepper didn't have ideal behaviour for my timed event loop and hence nailed down the semantics a ilttle more.
(obiter: the 1540 now appears to discern the correct sequence of bits. Framing is off in my test printfs but that's neither here nor there).
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2016-07-31 13:32:30 -04:00 |
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