Thomas Harte
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2a81ae1dec
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Now required: at least four stores for RAM to be detected.
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2017-02-28 20:28:14 -05:00 |
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Thomas Harte
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8f8b103224
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Slightly tidier. Also in the interim: confirmed no remaining false positives or negatives from the existing published set.
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2017-02-27 08:42:43 -05:00 |
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Thomas Harte
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1af415a88e
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Okay, this is a bit desperate, but worth investigation.
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2017-02-27 08:39:53 -05:00 |
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Thomas Harte
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fe07cd0248
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Made another attempt to distinguish.
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2017-02-27 08:06:57 -05:00 |
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Thomas Harte
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a3d339092e
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Corrected callers of the 6502 disassembler.
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2017-02-27 07:56:59 -05:00 |
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Thomas Harte
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837216ee9a
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Adjusted semantics to allow for more complicated mappings, e.g. whereby supplied data repeats itself within a range.
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2017-02-27 07:49:33 -05:00 |
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Thomas Harte
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0273860018
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Sought to weed out further false positives on CommaVid, partly by introducing a record of internal calls, to pair with the now confusingly named outward_calls.
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2017-02-26 21:58:09 -05:00 |
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Thomas Harte
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82c089cde4
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Factored out paging type detection and, from that, took out 2k cartridge detection. Added an attempt at a CommaVid detector, which does not currently work.
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2017-02-26 21:24:54 -05:00 |
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Thomas Harte
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8b1ec827e0
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Made an initial, very naive attempt to recognise two types of expanded cartridge: those with a superchip and those with a CBS RAM+, in both cases by looking for instructions that appear to write into cartridge space.
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2017-02-26 17:11:57 -05:00 |
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Thomas Harte
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153525f23d
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Extended quality of known address read/write/modify mapping, and started recording internal accesses in addition to external.
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2017-02-26 17:10:33 -05:00 |
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Thomas Harte
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87afa9140e
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Took some provision steps towards paging type autodetection and communication. But I think this is a distraction.
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2017-02-20 17:44:36 -05:00 |
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Thomas Harte
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7ab6023a0c
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Ensured no attempt to call strcmp on null if a file name without an extension got into here.
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2017-02-11 13:36:36 -05:00 |
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Thomas Harte
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f3d9aec8fc
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Fixed Electron's support for automatically booting floppy disks.
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2017-01-08 14:47:41 -05:00 |
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Thomas Harte
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e5cc77f22d
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Added an extra sanity check.
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2016-12-30 17:29:51 -05:00 |
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Thomas Harte
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beaa868079
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Factored the MFM parser out into encodings.
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2016-12-25 20:00:57 -05:00 |
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Thomas Harte
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4d3bdf8c7c
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Fixed failure to initialise the Microdisc flag if loading a tape.
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2016-12-06 20:29:05 -05:00 |
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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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ea33a28695
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Any Oric-format disks that are inserted now make it all the way to the Oric, along with a request to emulate the Microdisc. It has received a copy of the ROM. The ball is entirely in its court now.
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2016-11-21 20:59:25 +08:00 |
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Thomas Harte
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8499783b14
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Dragged multibyte primitives and signature checks up to the base class. Implemented support for Oric MFM-style .DSK, at the file format level.
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2016-11-21 20:47:16 +08:00 |
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Thomas Harte
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8b40ae03ca
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Extended analysis to spot IRQ and NMI vector changes, for titles that simply adjust those then exit. Ensured Oric emulator can type and load quickly on an Oric 1 just as well as on an Atmos.
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2016-11-15 11:05:53 +08:00 |
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Thomas Harte
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e2cdfae8a7
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The emulated Oric now has access to both versions of the BASIC ROM and picks between them based on the static analyser's recommendation.
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2016-11-15 10:39:16 +08:00 |
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Thomas Harte
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ab64731d51
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Fixed off-by-one recording of disasssmbled addresses; added logic to the Oric static analyser to try to guess between BASIC 1.1 (the preferred option in a tie-break or if no information is found) and BASIC 1.0.
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2016-11-15 10:31:47 +08:00 |
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Thomas Harte
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1bffc70494
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In theory that's a full disassembler, at least as far as I want to go for now. Time to test.
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2016-11-15 08:19:57 +08:00 |
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Thomas Harte
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a5fc45e66e
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Started fleshing this out; addressing modes are completely decoded, along with a bunch of opcodes, but appropriate address advancement isn't in yet, and neither is filling in derived metadata.
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2016-11-14 12:19:09 +08:00 |
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Thomas Harte
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1b66847647
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Started trying to implement something sufficient of a 6502 disassembler.
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2016-11-11 20:10:58 -05:00 |
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Thomas Harte
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c257e7f58d
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Implemented better sync-to-zero and discovered a header counting bug plus, probably, a misleading representation of gaps in the Oric TAP decoder.
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2016-11-07 20:17:06 -05:00 |
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Thomas Harte
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80702616ea
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Had a quick go at using the Oric parser for static analysis. Found out that synchronisation is lost. Need to investigate.
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2016-11-06 22:56:38 -05:00 |
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Thomas Harte
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353c1c8ea3
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Shifted ownership of PETSCII -> string conversion down to the storage layer, where it's useful for tape parsing.
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2016-11-06 18:43:51 -05:00 |
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Thomas Harte
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1b15bc3a6c
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Started relocating the tape parsers down from static analyser to storage, to signify that they may be used by the emulation (if fast loading is supported on that machine).
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2016-11-06 16:13:13 -05:00 |
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Thomas Harte
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093eb55fc6
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The parsers no longer own a tape, merely taking one as an argument. So they can be an adjunct.
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2016-11-06 15:25:18 -05:00 |
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Thomas Harte
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8c70dc5891
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Implemented typer for the Oric, and I'm starting to think the code is a bit too repetitious. Refactoring will be forthcoming. Added CLOAD"" as the loading command for all Oric software.
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2016-11-03 22:14:40 -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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df01c78039
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It's a bit of a mess but this is probably close to appropriate for Oric TAP files.
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2016-10-11 07:39:48 -04:00 |
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Thomas Harte
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2411f192f7
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Switched back to full typing, even for DFS loading. It saves having to worry about sideways RAM filing systems and shift (if that's even the issue).
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2016-10-01 21:09:28 -04:00 |
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Thomas Harte
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abf47efd40
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Factored out Commodore is-a-ROM test, allowing it to be used from the Commodore analyser and thereby allowing ROMs to get as far as the machine again.
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2016-09-29 19:39:13 -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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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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523dbb9678
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This'll do for getting the ADF into the machine.
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2016-09-25 18:32:26 -04:00 |
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Thomas Harte
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de863719d0
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Made a first attempt at Acorn ADFS support plus the start of a suitable analyser.
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2016-09-25 17:46:11 -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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67b54269c9
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Added typer support for loading from DFS. It'll do for now.
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2016-09-24 22:52:49 -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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c9dd07cecd
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DFS disks are now delivered right up to the emulator's front door. So everything's in place to get started on that WD1770 nonsense.
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2016-09-19 08:29:23 -04:00 |
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Thomas Harte
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e025768604
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Two passes of the index hole => no sector found.
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2016-09-19 08:17:07 -04:00 |
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Thomas Harte
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64f2538b1f
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Added CRC checking to DFS comprehension; fixed a bunch of places where I'd used Objective-C's #import rather than #include.
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2016-09-19 08:16:06 -04:00 |
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Thomas Harte
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c58cdbf151
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Minor tweak to support zero-length files.
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2016-09-19 07:37:11 -04:00 |
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Thomas Harte
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ca4df5dd61
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Introduced a full container for disk catalogues, so as also to capture non-file information, and 'completed' (i.e. albeit that CRC checking is still absent) DFS catalogue decoding.
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2016-09-19 07:35:02 -04:00 |
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Thomas Harte
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231f3dd0f4
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This is exactly as far as I'm going to get with DFS parsing today, I think.
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2016-09-18 22:18:01 -04:00 |
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