Thomas Harte
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063a62372f
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The Commodore serial bus and C1540 are now postfix underscorers.
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2016-12-03 13:14:03 -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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3f7f2c6117
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'Tape' has joined the new underscore orthodoxy.
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2016-12-03 12:05:19 -05:00 |
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Thomas Harte
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0dc2aa6454
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Commuted all of 'Storage' other than 'Tape' to postfix underscores.
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2016-12-03 11:59:28 -05:00 |
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Thomas Harte
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5be22e2f8d
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Switched to suffix underscores and underscores in general for instance variables.
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2016-12-03 11:38:53 -05:00 |
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Thomas Harte
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c5016a3eaa
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Completed flight of 'Outputs' to postfix underscores.
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2016-12-03 11:02:34 -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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36bc558798
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Converted all 'Components' to postfix underscores.
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2016-12-03 10:51:09 -05:00 |
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Thomas Harte
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a0043ec336
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Merge pull request #80 from TomHarte/Microdisc
Adds support for the Microdisc interface to the Oric emulation
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2016-12-03 23:25:44 +08:00 |
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Thomas Harte
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81ee834530
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As well as a bunch of logging, reinstated rotation position preservation across tracks.
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2016-12-02 18:36:47 -05:00 |
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Thomas Harte
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93c573bfa9
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Implemented missing status bits (other than the index hole), and a head loading delay for the Microdisc.
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2016-12-01 21:13:16 -05:00 |
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Thomas Harte
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0a0775c3bd
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Removed earlier hacky solution.
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2016-12-01 20:16:11 -05:00 |
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Thomas Harte
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442986ee2c
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Introduced a head loading path for 1793 machines.
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2016-12-01 20:12:22 -05:00 |
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Thomas Harte
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82899f2f47
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Ensured flag setting is atomic, removed duplication of interrupt request versus busy, found better names for the personality testers, unified delegate protocol.
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2016-12-01 07:41:52 -05:00 |
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Thomas Harte
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b31fd11470
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Fixed reporting of data request line, initial status values.
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2016-11-30 22:39:55 -05:00 |
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Thomas Harte
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2222cb65d6
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Split the status up into flags, assembled into a register upon demand. Attempted to implement some of the differences between the 1770/1772 and 1773/1793. Albeit with a motor fix still in place.
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2016-11-30 22:26:02 -05:00 |
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Thomas Harte
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9b6c5e814a
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Now that it can be more explicit, this should admit that it's '93-based, not '73.
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2016-11-28 16:22:35 -05:00 |
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Thomas Harte
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84cb07613d
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Checked some documentation more thoroughly; the 1793 has quite different spin-up (/head load) semantics. So it's another distinct personality. Grrr.
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2016-11-27 20:39:08 -08:00 |
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Thomas Harte
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02ba1f220f
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The '72 seems to be a '70 with altered timing. So worth differentiating.
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2016-11-27 21:06:17 +08:00 |
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Thomas Harte
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2c01f9dbed
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Added meaningful TODOs.
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2016-11-27 08:42:39 +08:00 |
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Thomas Harte
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f44542c18c
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Improved naming: this now explains what, not the mechanics of how.
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2016-11-26 23:35:11 +08:00 |
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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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d8ecc52de8
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Temporarily disabled spin-down as harmful to the status register if following anything other than a Type 1 command.
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2016-11-26 22:27:20 +08:00 |
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Thomas Harte
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5c8ecd3051
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It probably needs a better name, but hastily implemented track caching at the Disk level.
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2016-11-26 14:27:06 +08:00 |
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Thomas Harte
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2f86b07cfa
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Added a parser for Oric-format MFM disks. Causing my first disk to load!
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2016-11-26 13:40:10 +08:00 |
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Thomas Harte
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dcfdd73077
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Switched to more conventional runtime polymorphism, also now allowing encoders (shifters as were) to be obtained, as a slightly lower-level interface than vector-of-sectors.
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2016-11-26 13:39:20 +08:00 |
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Thomas Harte
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b180f04c87
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Okay, so this file format wasn't what I hoped it was. It's another hack. Lots of work to do.
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2016-11-26 10:19:10 +08:00 |
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Thomas Harte
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7613755f94
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Fixed addressing: types are 1 and 2, not 0 and 1.
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2016-11-26 10:13:12 +08:00 |
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Thomas Harte
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b9677c9927
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Consolidated interrupt request setting.
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2016-11-26 09:41:53 +08:00 |
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Thomas Harte
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e9d6566e9c
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Of course, changing the IRQ enable may immediately change the IRQ line. Signal if so.
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2016-11-26 09:35:44 +08:00 |
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Thomas Harte
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73d30b9c00
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Corrected typo.
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2016-11-25 21:30:45 +08:00 |
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Thomas Harte
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12956901d6
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Filled in some register mirrors.
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2016-11-25 21:28:11 +08:00 |
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Thomas Harte
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54246c8f1a
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Interrupt enabling works the other way around I think, and both registers with only one bit defined should probably return '1' in all other places?
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2016-11-25 21:24:59 +08:00 |
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Thomas Harte
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d5f9e0aa3b
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Ensured there's no such thing as a zero-cycle operation, even if i don't yet know exactly what I should be doing.
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2016-11-25 21:24:25 +08:00 |
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Thomas Harte
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8be81f6ebd
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Supplied disks are given to the Microdisc.
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2016-11-25 20:53:38 +08:00 |
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Thomas Harte
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4af678d2ed
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Gave the Microdisc a clock signal, added just enough of force interrupt to avoid a spurious belief that a type 3 command has started.
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2016-11-25 20:51:39 +08:00 |
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Thomas Harte
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5c019ad1c0
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Okay, so it looks like both ROM paging flags are the opposite of what I previously had.
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2016-11-25 20:42:40 +08:00 |
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Thomas Harte
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5be45c6c50
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Ensured proper default behaviour.
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2016-11-25 20:30:27 +08:00 |
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Thomas Harte
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d33f3b9224
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This is the broad strokes effort at enabling Microdisc emulation.
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2016-11-25 20:15:48 +08:00 |
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Thomas Harte
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7c2d9f3752
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This seems to be right, per http://wiki.defence-force.org/doku.php?id=oric:hardware:floppy_disk_controller_wd1793
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2016-11-22 22:35:43 +08:00 |
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Thomas Harte
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5ebc1c63ff
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Switched video to postfix underscores, for consistency.
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2016-11-22 22:28:45 +08:00 |
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Thomas Harte
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707763f80b
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Added Microdisc storage to the Oric class, switching all instance storage to postfix underscore while I'm here.
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2016-11-22 22:22:00 +08:00 |
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Thomas Harte
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0c3644f350
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Made a second parse at logic. We'll see.
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2016-11-22 22:12:32 +08:00 |
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Thomas Harte
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03843bf934
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Unified delegates. Let's keep it easy for the caller.
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2016-11-22 22:11:11 +08:00 |
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Thomas Harte
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13a608a8c2
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Added what may be correct paging logic.
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2016-11-22 22:09:52 +08:00 |
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Thomas Harte
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363db695e8
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Started implementation of the Microdisc selection logic.
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2016-11-22 08:12:53 +08:00 |
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Thomas Harte
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59e2a09107
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Added assumption that Microdisc => BASIC 1.1.
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2016-11-22 08:12:24 +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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