Thomas Harte
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0f75525640
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Merge pull request #187 from TomHarte/CRCErrors
Extends the built-in [M]FM encoder to be able to produce incorrect CRC values, and adjusts the CPC .DSK handler to request them when appropriate
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2017-08-11 14:34:31 -04:00 |
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Thomas Harte
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edb088526f
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Simplified slightly, and updated TODO as to still-missing functionality.
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2017-08-11 14:33:34 -04:00 |
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Thomas Harte
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80ebc63101
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Updated the SSD file format container to specify sector sizes, now that it's no longer implicit.
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2017-08-11 14:30:35 -04:00 |
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Thomas Harte
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cf1403bc79
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Increased documentation.
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2017-08-11 14:27:07 -04:00 |
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Thomas Harte
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fcf63a7547
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Expands the [M]FM encoder to respect some new Sector flags: it will now wilfully make CRC errors, omit data, include data that is different than the ID's declared length, write deleted data, and can be commanded as to header/data gaps and what should be within them. All based around expanding towards the needs for reproduction of the CPC's .DSK file format.
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2017-08-11 14:24:50 -04:00 |
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Thomas Harte
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9c0b75faba
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Merge pull request #186 from TomHarte/CPCTyper
Introduces typer support for the Amstrad CPC.
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2017-08-11 12:35:43 -04:00 |
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Thomas Harte
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1f2bfc9581
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Ensured tape loading really begins.
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2017-08-11 12:30:36 -04:00 |
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Thomas Harte
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14ab03d1e0
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Added a further fallback: if all files have an extension but one doesn't, take that one.
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2017-08-11 12:27:50 -04:00 |
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Thomas Harte
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3831fbaca2
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Ensured the ZX80 and '81 also provide the necessary hook for destruction.
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2017-08-11 12:11:01 -04:00 |
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Thomas Harte
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1d8edf58dd
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Ensured that a virtual destructor is declared, so that the various automatically-generated real constructors get in on the action.
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2017-08-11 12:07:48 -04:00 |
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Thomas Harte
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4785e316ff
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Now with exposition.
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2017-08-11 11:36:03 -04:00 |
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Thomas Harte
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44da9de5b0
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Tweaked typing timing expectations.
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2017-08-11 11:35:28 -04:00 |
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Thomas Harte
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4ecd093891
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Fixed test for termination of a key sequence; the previous error will have seen this reduce all multi-key sequences to just the one, and expand single-key sequences to "probably" two, posting an out-of-bounds code to the machine at completion.
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2017-08-11 11:35:14 -04:00 |
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Thomas Harte
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dd4bc87d52
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Fixed: should be a full-path #ifdef guard, given that this is one of the classes named relative to its namespace.
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2017-08-11 11:21:33 -04:00 |
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Thomas Harte
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570d25214e
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Made an initial attempt at typer support for the CPC.
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2017-08-11 11:21:07 -04:00 |
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Thomas Harte
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f0b7e58968
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Merge pull request #185 from TomHarte/CPMCatalogue
Introduces a CP/M catalogue parser, as a basic for the CPC's static analyser
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2017-08-11 11:00:49 -04:00 |
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Thomas Harte
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0411b51582
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Added an attempt to deal with 16-bit allocation units, and to ensure middle-of-file holes are respected.
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2017-08-11 10:59:37 -04:00 |
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Thomas Harte
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dea782cff9
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Added a "yeah, I don't know" fallback.
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2017-08-11 10:47:45 -04:00 |
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Thomas Harte
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388dd99762
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Advanced this just enough to suggest a loading command for most things.
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2017-08-11 10:47:12 -04:00 |
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Thomas Harte
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026101a268
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Killed logic_extents_per_physical, since I don't know how to handle it, and instituted tracks, to allow a decision about short versus long allocation units.
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2017-08-11 10:46:50 -04:00 |
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Thomas Harte
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734099a956
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Threw a sector cache into my MFM parser, in an attempt to cut down analysis costs. Also made it aware of multiple heads.
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2017-08-11 10:29:13 -04:00 |
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Thomas Harte
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6be5851484
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Cleaned up.
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2017-08-10 22:34:29 -04:00 |
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Thomas Harte
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994179f188
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Taking a whole bunch of guesses, this might be correct.
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2017-08-10 22:33:08 -04:00 |
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Thomas Harte
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6a65c7a52a
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Started working on a CPC-oriented analyser; for now I just want to be able to make a good guess at the appropriate file to load from a disk. As it turns out, the CPC simply adopts the CP/M format, so a generic parser is appropriate. This is its beginning.
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2017-08-10 17:10:21 -04:00 |
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Thomas Harte
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0d2d3ea17c
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Merge branch 'master' into DeferredVideo
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2017-08-10 16:01:02 -04:00 |
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Thomas Harte
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5d374ebb18
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Merge pull request #184 from TomHarte/DeferredVideo
Reduces CRTC counter sizes to match real hardware; introduces a CRT gamma transform
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2017-08-10 16:00:39 -04:00 |
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Thomas Harte
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62eadbb51a
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Adjusted gamma ratio to be the correct way around. The PAL midrange should be slightly darker now.
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2017-08-10 15:36:27 -04:00 |
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Thomas Harte
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ad8c8166bc
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Built in gamma conversion for all machines, assuming an output of 2.8 for PAL, 2.2 for NTSC.
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2017-08-10 15:17:08 -04:00 |
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Thomas Harte
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a5593bec79
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Threw in support for the light-pen trigger.
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2017-08-10 15:00:14 -04:00 |
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Thomas Harte
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a1e2646301
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Imposed counter size limits.
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2017-08-10 14:58:24 -04:00 |
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Thomas Harte
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cf810d8357
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Minor: ensure the CRT is set to output as a monitor.
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2017-08-10 14:42:47 -04:00 |
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Thomas Harte
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f258d6fbb2
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Merge pull request #183 from TomHarte/6845Address
Corrects 6845 address loading
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2017-08-10 12:51:40 -04:00 |
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Thomas Harte
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4961fda2a9
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Ensured counter-intuitive CRTC writes get through, taking the opportunity to correct my handling of port IO in general: selecting multiple devices for input results in a logical AND (i.e. open collector mode), and both the CRTC and gate array will receive data from 'input's if applicable.
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2017-08-10 12:39:19 -04:00 |
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Thomas Harte
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6a6e5ae79c
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Forced users of the 6845 to be explicit about which type. So far with no effect.
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2017-08-10 12:28:57 -04:00 |
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Thomas Harte
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02d792c003
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Simplified logic slightly, avoiding repetition.
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2017-08-10 11:48:37 -04:00 |
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Thomas Harte
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be8e7a4144
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Eliminated false register aliasing, restricted register sizes and locked out reading and writing where appropriate.
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2017-08-10 11:22:30 -04:00 |
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Thomas Harte
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b1dbd7833a
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Merge branch 'master' into 6845Address
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2017-08-10 11:15:08 -04:00 |
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Thomas Harte
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84ab05c5ef
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Merge branch 'BetterFDC'
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2017-08-10 11:14:53 -04:00 |
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Thomas Harte
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78138261c2
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Merge pull request #182 from TomHarte/BetterFDC
Continues building up the 8272
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2017-08-10 11:14:08 -04:00 |
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Thomas Harte
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a4c910f1de
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This appears to be a more accurate take on 6845 address advancement — it is necessary that character output has finished for the line address to be updated.
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2017-08-10 11:12:53 -04:00 |
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Thomas Harte
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2eed24e859
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Made an initial attempt at [a subset of] multi-sector reads.
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2017-08-10 11:11:26 -04:00 |
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Thomas Harte
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7d1023ea98
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Added a 'ready' getter to Drive, formally to let the drive take ownership of that test.
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2017-08-08 21:15:56 -04:00 |
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Thomas Harte
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b11d142cff
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Switched to descriptive names.
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2017-08-08 20:35:41 -04:00 |
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Thomas Harte
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021ff8674e
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Added something for sense drive status.
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2017-08-08 20:30:54 -04:00 |
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Thomas Harte
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1b86bc21ab
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Might as well get official on my ongoing efforts at CPC emulation.
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2017-08-08 17:58:54 -04:00 |
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Thomas Harte
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e3d1f4fe1e
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Subjectively, this might be more correct. It definitely prevents intermediate frequencies. More research required.
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2017-08-08 17:58:35 -04:00 |
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Thomas Harte
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a7452aebff
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Merge pull request #181 from TomHarte/6128
Introduces support for 128kb CPCs.
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2017-08-08 16:06:31 -04:00 |
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Thomas Harte
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484524d781
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Implements RAM paging. The 6128 is now emulated.
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2017-08-08 16:01:56 -04:00 |
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Thomas Harte
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dbf9927caf
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Merge branch '8255Modes'
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2017-08-08 07:44:56 -04:00 |
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Thomas Harte
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3bdedfd749
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Improved comments.
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2017-08-08 07:44:46 -04:00 |
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