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981 Commits

Author SHA1 Message Date
Thomas Harte
2ce1f0a3b1 Implements multi-sector read/write. 
This once again unblocks Apple HD SC Setup. Progress!
 2019-09-16 22:20:42 -04:00
Thomas Harte
210129c3a1 Updated as per Inside Macintosh IV. 
Of which I now own a copy.
 2019-09-16 21:31:43 -04:00
Thomas Harte
934901447a Adds a temporary version of block access writing. 
Whatever I'm doing, it's still not correct. The Macintosh ostensibly appears to 0-fill the direct-access device, then reads a sector back and hangs.
 2019-09-15 22:06:45 -04:00
Thomas Harte
c849188016 Adds format and write to the SCSI target. 
Now I think I need to switch back to the 5380 to ensure proper DMA mode interactions when writing.
 2019-09-12 21:58:09 -04:00
Thomas Harte
87e8dade2f Implements READ BUFFER to do, you know, *something*. Plus READ CAPACITY. 
The HD SC utility now offers up drive 6 for formatting. That's progress.
 2019-09-11 21:52:02 -04:00
Thomas Harte
6fc5b4e825 Simplifies INQUIRY for future targets; implements enough of SENSE MODE to advance. 
The HD SC setup utility is now looking to read buffer.
 2019-09-08 21:59:56 -04:00
Thomas Harte
00ce7f8ae0 Takes a first shot at INQUIRY. 2019-09-07 22:04:44 -04:00
Thomas Harte
6e0e9afe2f Fixed: to post a message, I want message in, not message out. 2019-09-07 13:35:38 -04:00
Thomas Harte
cb0d994827 Provides empty data for the unimplemented sectors. 2019-09-07 13:17:53 -04:00
Thomas Harte
bee782234a Ensures no state transitions while acknowledge is still asserted. 2019-09-07 13:17:34 -04:00
Thomas Harte
cbd1a8cf78 Factors out command termination, adds a default implementation of test unit ready. 2019-09-03 22:40:18 -04:00
Thomas Harte
a4ab0afce3 Takes a shot at completing a full SCSI interaction. 2019-09-03 21:15:30 -04:00
Thomas Harte
1c7e0f3c9d Fixes control line modification by the 5380 and SCSI target command chaining. 
So now I'm back to trying to guess how a SCSI command terminates re: the relative meanings of a message phase and a status phase.
 2019-09-02 23:14:37 -04:00
Thomas Harte
318cdb41ea Adds SCSI bus clocking to the Macintosh, and fixes its internal counting. 2019-09-02 16:03:33 -04:00
Thomas Harte
2f8e31bc8b Takes a first bash at implementing the new SCSI::Bus timing infrastructure. 2019-09-02 13:00:01 -04:00
Thomas Harte
310c722cc0 Starts a transition to bus-level knowledge of SCSI-specific bus timing thresholds. 
The idea being that bus attachees need not all count time for themselves. They can be very plain finite state machines.

New semantics are not yet implemented within the Bus. The plan is to do that, remove the internal counting of time within the NCR, then adjust the Target to be more explicitly stateful.
 2019-08-31 21:44:22 -04:00
Thomas Harte
25956bd90f Mildly improves temporary logging. 
A deckchair shuffle, at best.
 2019-08-26 22:35:11 -04:00
Thomas Harte
1a60ced61b Starts trying to deal with creating a whole volume from merely a partition. 2019-08-25 23:03:54 -04:00
Thomas Harte
081316c071 Adds some additional commentary as this takes shape. 2019-08-25 17:46:05 -04:00
Thomas Harte
eafbc12cc1 Ensures a clean entry into the command phase. 2019-08-25 17:43:14 -04:00
Thomas Harte
ca08716c52 Introduces real hard disk images to the nascent world of SCSI. 2019-08-25 17:03:41 -04:00
Thomas Harte
30cef1ee22 Adds write support. 2019-08-25 15:16:35 -04:00
Thomas Harte
404b088199 Adds a trivial mass-storage device, for Macintosh HFV volumes. 2019-08-25 15:09:27 -04:00
Thomas Harte
7d61df238a Localises #include. 2019-08-25 15:09:04 -04:00
Thomas Harte
c86db12f1c Starts implementing DMA support on the 5380. 
The Macintosh doesn't actually use the DMA signals, but uses pseudo-DMA mode so they nevertheless need to be appropriate.
 2019-08-24 22:47:11 -04:00
Thomas Harte
ce2e85af8b Adds missing bus state callouts. 2019-08-22 23:27:00 -04:00
Thomas Harte
2d82855f26 Attempts to provide a data out phase. 2019-08-22 23:16:58 -04:00
Thomas Harte
faec516a2c Starts pushing towards figuring out a proper infrastructure for mass storage. 2019-08-21 23:22:58 -04:00
Thomas Harte
f668e4a54c Makes an attempt at getting the 5380 past arbitration. 
Not entirely successful. Also gets a bit smarter with `final` on ClockingHint::Sources.
 2019-08-15 23:14:40 -04:00
Thomas Harte
b1f04ed96d Eliminates the crutch of PlusToo BIN files. 
Thereby returning the .bin extension to the various consoles.
 2019-07-28 16:07:16 -04:00
Thomas Harte
786b26d23e Adds an admission of incompleteness. 
I really need to figure out the 5-and-3 encoding.
 2019-07-26 23:23:40 -04:00
Thomas Harte
d08d8ed22c Adds a further drift safeguard. 2019-07-26 23:23:01 -04:00
Thomas Harte
39d7e3c62c Ensures relative_exponents less than or equal to -32 don't overflow. 2019-07-26 22:19:40 -04:00
Thomas Harte
572e8b52e1 At the cost of extra storage, attempts to simplify away potential rounding issues around the index hole. 2019-07-26 17:20:32 -04:00
Thomas Harte
9b634472c6 Gets a little more rigorous on "high resolution". 2019-07-26 15:26:51 -04:00
Thomas Harte
d2bfd59953 Ensures positional continuity across rotation speed changes. 2019-07-25 22:29:54 -04:00
Thomas Harte
3d20ae47ea Ensures cycles_since_index_hole_ is wrapped to track length. 2019-07-25 21:48:01 -04:00
Thomas Harte
77333ff9f7 It appears that file checksums are not reliable. 2019-07-17 14:56:50 -04:00
Thomas Harte
79a624e696 Applies more rigorous logic to deciding when to stop parsing. 2019-07-16 18:06:54 -04:00
Thomas Harte
c123ca1054 Slightly improves syntax. 2019-07-16 18:05:58 -04:00
Thomas Harte
9f0f35033d Introduces sector interleaving. 2019-07-16 18:05:40 -04:00
Thomas Harte
3633285aaa Ensures a trailing zero bit isn't dropped. 2019-07-16 16:36:00 -04:00
Thomas Harte
cb16790330 Improves qualifiers. 2019-07-15 22:40:45 -04:00
Thomas Harte
ca37fd8f4c Corrects tag preservation. 2019-07-15 17:15:06 -04:00
Thomas Harte
46b98dab70 Bumps up the amount of reserved storage. 
To avoid a reallocation when reading Mac data.
 2019-07-15 17:12:31 -04:00
Thomas Harte
0568996264 Fixes a couple of data arrangement issues on output. 2019-07-15 17:11:58 -04:00
Thomas Harte
5b05a9bc61 Extends Drive to report is_writing and so that writing works as the first action. 2019-07-12 18:53:41 -04:00
Thomas Harte
2c39229b13 Adds has-new-disk flag, allowing mounting of software from the desktop. 2019-07-12 13:17:24 -04:00
Thomas Harte
6c2cc206a6 Takes a first stab at write support for Macintosh disk images. 
Albeit that the Macintosh itself can't yet write.
 2019-07-11 18:09:37 -04:00
Thomas Harte
5a9f3cfc1e Completes Mac GCR decoding and its associated test. 2019-07-11 17:37:07 -04:00
Thomas Harte
8f28b33342 Starts work on Macintosh GCR decoding. 2019-07-11 16:28:52 -04:00
Thomas Harte
c4ab0bb867 Starts sketching out an interface for IWM drives, eliminating a dangling use of unsigned as it goes. 2019-07-10 16:05:59 -04:00
Thomas Harte
3f303511bd Adds cstring include, in support of memcpy. 2019-07-08 18:06:58 -04:00
Thomas Harte
b9c2c42bc0 Switches drives to using floats for time counting. 
Hopefully to eliminate a lot of unnecessary `Time` work; inaccuracies should still be within tolerable range.
 2019-07-02 15:43:03 -04:00
Thomas Harte
68a3e5a739 Renamed DiskCopy42 to MacintoshIMG, now that it's not just DiskCopy 4.2 files. 2019-06-18 14:32:58 -04:00
Thomas Harte
9730800b6a Adds support for raw sector dumps. 2019-06-18 14:14:25 -04:00
Thomas Harte
506276a2bd Corrected: use format tag as intended. 2019-06-18 14:04:28 -04:00
Thomas Harte
df56e6fe53 Fixed: the sector number also goes into sector bodies. 
Also the checksum is written in the other order, and the final byte of data isn't output.
 2019-06-18 10:34:10 -04:00
Thomas Harte
756641e837 Fixed: tags go first, then data. 2019-06-16 22:00:12 -04:00
Thomas Harte
05c2854dbc Makes at least some attempt at producing real disk tracks. 2019-06-16 21:17:24 -04:00
Thomas Harte
5c8aacdc17 Fixes the more obvious issues with GCR encoding: byte order, top bit selection. 2019-06-16 17:17:24 -04:00
Thomas Harte
fe0dc4df88 Starts building out some tests for Apple GCR encoding. 2019-06-15 22:48:24 -04:00
Thomas Harte
33f2664fe9 Makes a first attempt at Macintosh GCR encoding. 2019-06-15 22:29:02 -04:00
Thomas Harte
a17e47fa43 Apple's GCR header varies between the Mac and the Apple II. 2019-06-15 16:32:56 -04:00
Thomas Harte
877b46d2c1 Advances IWM/drive emulation very close to the point of 'Welcome to Macintosh'. 2019-06-15 16:08:54 -04:00
Thomas Harte
e9d0676e75 Fiddles further with the tachometer. 2019-06-06 21:36:19 -04:00
Thomas Harte
7591906777 Numerous IWM fixes: the machine now seems to be trying to measure the tachometer. 2019-06-06 18:32:11 -04:00
Thomas Harte
08671ed69c Fixes setting of a Time to a float. 2019-06-05 14:43:34 -04:00
Thomas Harte
511d292e73 Ensures gain noise is forgotten upon assumption of a new track. 2019-06-05 14:43:17 -04:00
Thomas Harte
833258f3d7 Sets things up to allow variable rotation rates, and especially Sony 800kb-style self-selecting rates. 2019-06-04 21:41:54 -04:00
Thomas Harte
b8a1553368 Adds putative support for PlusToo-style BIN files. 
Albeit a bit of a guess, since it's not intended to be an emulator file format.
 2019-06-04 21:41:09 -04:00
Thomas Harte
1033abd9fe Starts making some space for Macintosh-style GCR encoding. 2019-06-04 15:41:15 -04:00
Thomas Harte
881feb1bd3 Adds preliminary parsing of the Disk Copy 4.2 format. 2019-06-02 13:39:25 -04:00
Thomas Harte
d97348dd38 Eliminates dangling uses of printf. 2019-03-02 18:07:05 -05:00
Thomas Harte
9c8a2265b5 Breaks infinite loop where signature[0] == 0x1f but some of the rest doesn't match. 2019-03-02 14:47:52 -05:00
Thomas Harte
84d7157dfb Corrects arithmetic on raw data blocks. 2019-03-02 14:40:48 -05:00
Thomas Harte
ddce4fb46b Ensures that unexpected padding goes somewhere. 2019-03-02 14:35:16 -05:00
Thomas Harte
1ccee036c4 Switches complete logic behind CAS to wave conversion to parsing tape files. 2019-03-02 14:19:54 -05:00
Thomas Harte
10c98f0a15 Switches TapeUEF to using LOG. 
Reducing console noise for release builds.
 2019-02-02 22:30:10 -05:00
Thomas Harte
2ef6d4327c Resolves further build warnings. 2019-01-13 20:37:50 -05:00
Thomas Harte
cc95e587db Adds virtual destructors for various interface classes. 2019-01-13 19:19:01 -05:00
Thomas Harte
ee89be6730 Removes many stray spaces. 2018-11-23 22:32:32 -05:00
Thomas Harte
0d01346ad4 Advertises SMS support and goes as far as realising it needs to spawn a Master System. 2018-09-20 22:04:28 -04:00
Thomas Harte
36ff2105fb Updates C-style (bool) casts. 2018-09-11 20:37:15 -04:00
Thomas Harte
fc84ae611e Resolves various instances of spaces in place of tabs. 2018-09-09 20:33:56 -04:00
Thomas Harte
c73445199c Eliminates a couple of instances of manual memory management. 2018-09-09 20:29:58 -04:00
Thomas Harte
71ec7624ca Corrects Apple DSK track length, inter-track skew, and Pro-DOS volume number. 2018-08-27 20:56:25 -04:00
Thomas Harte
78c7137427 Avoids observer communication if motor status hasn't changed. 2018-08-03 21:11:22 -04:00
Thomas Harte
3f6944de54 Corrects custom info block parsing. 2018-07-11 22:21:35 -04:00
Thomas Harte
e8f847d288 Fixes CRC generator used to verify Acorn programs. 2018-07-10 20:01:31 -04:00
Thomas Harte
a0f817108e Minor style fix. 2018-07-10 20:01:11 -04:00
Thomas Harte
bfccadd356 Corrects comment typo. 2018-07-03 21:38:04 -04:00
Thomas Harte
5b3512f1df Attempts to pick an intelligent place to pad out tracks. 2018-07-03 20:10:22 -04:00
Thomas Harte
6e34e60f8a Ensures no data is dropped in transcribing a NIB to real track data. 2018-07-03 20:01:07 -04:00
Thomas Harte
abc5c50b2e Added some additional exposition. 2018-07-02 21:51:53 -04:00
Thomas Harte
1fcb461c42 Ensures that segments are written in a properly-circular fashion. 2018-07-02 19:35:49 -04:00
Thomas Harte
abca38a548 Makes an initial removal of PCMPatchedTrack. Farewell, old friend. 2018-07-01 22:49:57 -04:00
Thomas Harte
b4be2cd063 Implements PCMTrack::add_segment. Thereby completes PCMTrack::resampled_clone. 2018-07-01 18:28:25 -04:00
Thomas Harte
2d83eeb9c4 Further minor style improvements. 2018-07-01 17:59:43 -04:00
Thomas Harte
4d9e897cc3 Corrects addressing for deserialisation of bytes. 2018-07-01 15:58:56 -04:00
Thomas Harte
be664b5695 Ensures that start positions are properly related to sectors. 2018-07-01 15:53:48 -04:00
Thomas Harte
c3751066b7 Ensures segments are properly sized. 2018-07-01 15:43:31 -04:00
Thomas Harte
77feee8197 Applies minor style improvements. 2018-07-01 15:38:42 -04:00
Thomas Harte
f75af3b45e Adds some extra exposition. 2018-07-01 14:41:17 -04:00
Thomas Harte
1471a35bb8 Reserves a more appropriate amount of data. 2018-07-01 14:40:48 -04:00
Thomas Harte
555c2a4377 Makes a first sweep at converting the storage underlying PCMSegment to vector<bool>. 
This is to remove another pain point, in preparation for the work immediately forthcoming but also work as-yet unknown.
 2018-07-01 12:05:41 -04:00
Thomas Harte
16bef0dcd5 Starts the movement towards a world without PCMPatchedTrack. 2018-06-30 20:03:18 -04:00
Thomas Harte
62eef8cb40 Reinstates proper ready behaviour. 2018-06-18 21:35:39 -04:00
Thomas Harte
27657fcde0 Adds necessary header for assert. 2018-06-10 21:02:19 -04:00
Thomas Harte
e0b75b6e3d Corrects logic for avoiding overwrite. 2018-06-09 21:47:51 -04:00
Thomas Harte
a694844190 Moves gap 1 into proper ownership. 2018-06-09 17:28:08 -04:00
Thomas Harte
28f2d331a8 Switches to more realistic gaps. 2018-06-09 13:06:45 -04:00
Thomas Harte
dde9b73a22 Creates the through-path that will be necessary for RWTS acceleration. 2018-06-09 12:51:53 -04:00
Thomas Harte
744c35b617 Caps the number of sync bytes inserted at five. 2018-06-06 21:52:26 -04:00
Thomas Harte
9ac21a4e71 Switches to ignoring the byte count, trusting the bit count entirely. 2018-06-06 21:51:55 -04:00
Thomas Harte
db8d8d8404 Commutes Sleeper to ClockingHint::Source, making state more granular. 2018-05-27 23:17:06 -04:00
Thomas Harte
20843305dd Removes unused calculation of vars. 2018-05-27 13:31:30 -04:00
Thomas Harte
8f6c0f6a8d Eliminates vars test. 
At least Humpty Dumpty is a working .p that doesn't satisfy the test.
 2018-05-26 19:05:35 -04:00
Thomas Harte
d45231c1a8 Introduces an additional validation test. 
Thereby satisfying the TODO.
 2018-05-25 18:40:15 -04:00
Thomas Harte
772812b35f Corrects improper textual reference to interface names. 2018-05-25 18:31:20 -04:00
Thomas Harte
f443fd44b5 Introduces support for writing NIBs. 2018-05-25 18:30:55 -04:00
Thomas Harte
79c60b8984 Adds necessary import for memcpy. 2018-05-24 21:58:50 -04:00
Thomas Harte
523ca3264b Implements write support for WOZ files. 2018-05-24 21:44:31 -04:00
Thomas Harte
8f78e5039e Factors out track seeking. 2018-05-24 18:45:00 -04:00
Thomas Harte
57ee6d4e41 Merge branch 'master' into WOZWriting 2018-05-23 22:32:30 -04:00
Thomas Harte
2868b1eca7 Adds missing import for memcpy. 2018-05-23 22:31:35 -04:00
Thomas Harte
ca4bc92c33 Adds WOZ CRC checking. 2018-05-23 22:22:17 -04:00
Thomas Harte
853261364e Generalised CRC generation and created specific subclasses for the CCITT CRC16 and CRC32. 2018-05-23 22:21:57 -04:00
Thomas Harte
4952657b31 Factors out physical to logical sector conversion. 2018-05-19 22:59:59 -04:00
Thomas Harte
46fae1a761 Corrected: now maps in the proper direction. 2018-05-19 22:50:33 -04:00
Thomas Harte
a09fb01d71 Makes an attempt at write support for Apple DSK files. 2018-05-19 22:30:52 -04:00
Thomas Harte
7cee3b7449 Resolves potential overflow / sign corruption. 2018-05-19 22:28:29 -04:00
Thomas Harte
8263c48a1d Added a guarantee that the TrackSerialiser won't modify tracks it receives. 2018-05-18 23:03:28 -04:00
Thomas Harte
ed06533e60 Implements write support out of the Disk II. 2018-05-18 22:07:58 -04:00
Thomas Harte
7b7beb13a3 Eliminates the fiction of setting and getting registers. 
The Disk II seems lower level than that; it will read the data bus whenever it likes, it is the programmer's responsibility to keep up with that. It also reserves the right not to load the bus regardless of whether it receives a read or write access.
 2018-05-17 21:39:11 -04:00
Thomas Harte
85c4e009f3 Undoes reformatting error. 2018-05-14 20:03:32 -04:00
Thomas Harte
76802b5e38 Eliminates arc4random. 
It seems not to be as portable as I'd hoped.
 2018-05-14 20:01:20 -04:00
Thomas Harte
9f2f388e5a Ensures generation of random noise if too many zeroes exist on a disk surface. 2018-05-14 19:17:34 -04:00
Thomas Harte
7996040f35 Rejigs segment conjugation to avoid potential accidental empty byte. 2018-05-13 22:30:44 -04:00
Thomas Harte
0055efb720 Corrects failure of expression in track size expansion. 2018-05-13 22:29:36 -04:00
Thomas Harte
84ae2964fd Switches to explicit unicode entry points. 2018-05-13 16:02:46 -04:00
Thomas Harte
149b940f84 Commutes the pound sign to a proper unicode value. 2018-05-13 15:50:56 -04:00
Thomas Harte
7226d8d4f7 Eliminates all instances of µ. 2018-05-13 15:46:14 -04:00
Thomas Harte
ad9b0cd4e3 Eliminates all endashes. 2018-05-13 15:43:03 -04:00
Thomas Harte
5d6b5d9f10 Eliminates all emdashes in cross-platform code. 2018-05-13 15:34:31 -04:00
Thomas Harte
0b771ce61a Removes all instances of the copyright symbol. 2018-05-13 15:19:52 -04:00
Thomas Harte
3fdefb94e4 Removes requirement for correct sector epilogues. 
It's now a length test that at present accepts 6-and-2 sectors only.
 2018-05-12 23:03:08 -04:00
Thomas Harte
49592ebaf3 Ensures initialisation of scanner and that sectors overlapping the end of track are captured. 2018-05-12 18:42:07 -04:00
Thomas Harte
f410dcb3f3 Ensures proper test: not having a number of sectors that is a multiple of the track count. 2018-05-12 18:05:33 -04:00
Thomas Harte
0cb5362c6f Disambiguates whether Step will occur in addition to below zero/beyond maximum. 2018-05-11 21:44:08 -04:00
Thomas Harte
9089bf6535 Adds step events. 2018-05-10 21:58:14 -04:00
Thomas Harte
ef19a03efc Drives can now deliver activity events. 2018-05-10 21:54:10 -04:00
Thomas Harte
25f7e3af31 Removes dead debugging aid. What a klutz! 2018-05-09 22:24:20 -04:00
Thomas Harte
8ee34fafa6 Switches default DSK volume to 254. That seems to resolve Pravetz booting issues. 2018-05-09 20:28:58 -04:00
Thomas Harte
f65c65569a Makes disk head position explicitly something with sub-integral precision. 
Also as a drive-by fix, corrects accidental assumption of 10 sectors for all MFMSectorDump descendants.
 2018-05-06 23:17:36 -04:00
Thomas Harte
36f8b165cf Makes the epilogue test a bit more thorough. 2018-05-05 20:52:42 -04:00
Thomas Harte
1293d8b69e Corrects various indentation errors. 2018-05-05 19:32:20 -04:00
Thomas Harte
ba7fbc4032 Reroutes all Disk II types through the Disk II analyser and returns actual sector from the Apple GCR parser results. 2018-05-05 16:37:33 -04:00
Thomas Harte
c36d7b4972 Makes first attempt at 6 and 2 decoder. 2018-05-04 23:11:12 -04:00
Thomas Harte
0dece80b5d Improves documentation. 2018-05-04 18:02:55 -04:00
Thomas Harte
e3b4aebf1a Introduces the Disk II as a unique media target platform. 
As it makes a little more sense to analyse Apple GCR images to determine target platform than it does to have the potential platforms vote over them.

Also starts on the parser that'll be necessary for making a decision.
 2018-05-04 18:02:36 -04:00
Thomas Harte
2e20191c01 Relocates and cleans up what is currently written of Apple GCR handling as the encoder. 
A decoder will be forthcoming.
 2018-05-03 22:40:45 -04:00
Thomas Harte
fcc750784a Switches interleaving logic around: having inspected some NIBs sectors are numbered in order, but scatter read from the image. 2018-05-02 21:28:18 -04:00
Thomas Harte
3787d094ec Deals with potential precision pitfall. 2018-05-02 21:26:39 -04:00
Thomas Harte
4b4ea4a103 Corrects final two bytes of Apple GCR low nibble encoding. 2018-05-02 21:06:18 -04:00
Thomas Harte
5e34c1b6b8 Switches to producing a single segment for NIBs and DSKs. 
I've now seemingly verified that the values read back by the CPU are those I'm intending to produce, so I'm at a loss.
 2018-05-01 20:31:42 -04:00
Thomas Harte
f4097290c2 Made various corrections following a quick for-loop constness audit. 2018-04-30 22:23:57 -04:00
Thomas Harte
9da481b060 Slightly simplifies syntax. 2018-04-30 22:08:51 -04:00
Thomas Harte
79002d6962 Adds an additional assert. 2018-04-30 22:07:54 -04:00
Thomas Harte
dbd9282efc Experimentally switches to doubles for TimedEventLoop time tracking. 2018-04-30 22:07:17 -04:00
Thomas Harte
10c0e687f5 Attempts to introduce sleeping for the Disk II. 2018-04-29 17:51:10 -04:00
Thomas Harte
a9d4fe0b41 Introduces filetype wiring for DO and PO files. 
Also corrects sector numbering logic to ensure there is a sector 15.
 2018-04-29 16:34:10 -04:00
Thomas Harte
5cd15147eb Introduces interleaving of sector numbers. 2018-04-29 16:18:14 -04:00
Thomas Harte
c62db6665a Corrects storage of lower two bit pairs. 
It turns out the non-integral result of 256/3 is handled differently than my guess.
 2018-04-29 11:20:23 -04:00
Thomas Harte
fabcb261dc Corrects data prologue usage and off-by-one error in checksum placement. 2018-04-28 23:17:06 -04:00
Thomas Harte
45cf28e0eb Corrects sync lengths. 2018-04-28 15:48:49 -04:00
Thomas Harte
5b35c88be2 Corrections: data segments now correctly announce their number of bits, and tracks aren't oversized. 2018-04-28 15:47:50 -04:00
Thomas Harte
7f03f5d02f Makes a first attempt at six-and-two encoding for DSKs. 2018-04-28 15:18:48 -04:00
Thomas Harte
b98d5b790a Finally unifies disk image file exceptions, and adds a placeholder for Apple DSK. 2018-04-27 23:18:45 -04:00
Thomas Harte
5c74044e62 Unifies constants. 2018-04-27 21:38:08 -04:00
Thomas Harte
992a99d792 Improves validation of suspected sync regions. 2018-04-27 19:53:35 -04:00
Thomas Harte
41075356e2 Makes a first attempt at NIB support. 2018-04-26 22:49:07 -04:00
Thomas Harte
d59db504a3 Adjusted stepper logic; some disks load now. 2018-04-25 21:59:18 -04:00
Thomas Harte
c90e122eb2 Switches casts around to avoid potential undefined behaviour of left-shifting signed numbers. 2018-04-25 19:59:32 -04:00
Thomas Harte
4c6dc597f4 Converts Time::get into a template, introduces a via-a-double fallback for the timed event loop. 2018-04-25 19:54:39 -04:00
Thomas Harte
376b26c1e4 Simplifies the rotational multiplier upon construction, to mitigate against scale issues later. 2018-04-24 20:16:14 -07:00
Thomas Harte
7061537ff5 Makes joined-up attempt to run data through the Disk II. 2018-04-24 19:44:45 -07:00
Thomas Harte
4cbe5068a9 Works further towards NIB, but still isn't close. 2018-04-23 20:01:12 -07:00
Thomas Harte
38b2302b59 Corrects minor documentation errors. 2018-04-23 19:59:19 -07:00
Thomas Harte
bce0702745 Makes some faulty steps further towards providing Apple GCR assistance. 2018-04-23 19:59:03 -07:00
Thomas Harte
d447e81abd Adds provisional support for WOZ files. 2018-04-23 19:57:45 -07:00
Thomas Harte
6592745e53 Adds the bare minimum to respond to attempts to open NIB files with an Apple II. 2018-04-21 21:21:57 -07:00
Thomas Harte
72bc5f8d7b Adds a class to contain the Disk II and begins Apple GCR conversion routines. 2018-04-21 14:33:42 -07:00
Thomas Harte
079dc671e1 Rationalises per-machine static analyser call pattern, and adds Apple II as an option. 2018-04-14 12:12:12 -04:00
Thomas Harte
e1c4035812 Switches away from C strings and allows Vic-20 region inference from filenames. 2018-04-06 17:42:24 -04:00
Thomas Harte
3bb496f9ae Enforces a maximum sector size to avoid impossible sizes. 
Such as 128 * 2^255.
 2018-03-22 22:00:26 -04:00
Thomas Harte
1100dc6993 Opens up .bin and .rom to all cartridge platforms, and adds a confidence estimate to the Atari 2600. 2018-03-07 14:26:07 -05:00
Thomas Harte
5530b96446 Wired up a class and analyser for a ColecoVision. 2018-02-23 22:47:15 -05:00
Thomas Harte
d83178f29d Makes an attempt at implementing all missing TZX 1.20 blocks. 
Towards that aim, simplifies CSW handling so that even regular RLE compression uses a static grab of file contents.
 2018-02-22 21:28:12 -05:00
Thomas Harte
21efb32b6f Integrates the static and nascent dynamic analyser namespaces. 2018-01-24 21:48:44 -05:00
Thomas Harte
583c3cfe7d Allows the MSX to load ROMs that aren't quite multiples of 8kb. 2018-01-16 22:27:41 -05:00
Thomas Harte
def82cba49 Makes MSX tape parsing more tolerant to phase. 
Also reintroduces proper file type association for TSX on the Mac.
 2018-01-10 21:54:15 -05:00
Thomas Harte
aafdff49be Implements the ugly stuff of converting a DMK back to flux. 2018-01-09 22:13:04 -05:00
Thomas Harte
4ef583813a Minor tidying of PCMSegment and Oric MFM DSK. 2018-01-09 22:12:34 -05:00
Thomas Harte
9f97fb738e Merge branch 'master' into DMK 2018-01-09 19:42:27 -05:00
Thomas Harte
4e124047c6 Introduces enough DMK support to progress to failure to parse a track. 2018-01-08 21:57:11 -05:00
Thomas Harte
6eb56a1564 Corrects various comment typos. 2018-01-08 20:55:40 -05:00
Thomas Harte
35fc0a5c16
Corrects assumption of double sidedness. 2018-01-08 09:35:29 -05:00
Thomas Harte
0ccc104027 Corrects start sector and track interleaving for MSX DSK. 
MSX DSKs start with sector 1; Acorn disks still begin with sector 0. Also it turns out that MSX DSKs are indeed interleaved.
 2018-01-07 21:59:18 -05:00
Thomas Harte
2f59226300 Fixes: DiskROM drive motor control, track_for_sectors' sides. 2018-01-07 20:02:40 -05:00
Thomas Harte
999a0c22d4 Adds superficial support for MSX .DSK. 
In the sense that the file format itself is properly parsed, but the MSX doesn't actually yet have disk hardware.
 2018-01-07 16:35:57 -05:00
Thomas Harte
98a9d57c0b Imputes the alignment requirement for CAS headers. 
Also stops adding a spurious 0xff as the final byte on the tape.
 2017-12-29 10:42:18 -05:00
Thomas Harte
c481293aca Liberalises CAS interpretation. 
It seems to be an even weirder file format than I thought; it can contain only ROM-formatted data but seemingly often contains blobs that the ROM cannot write.
 2017-12-29 09:56:58 -05:00
Thomas Harte
5fd0a2b9ea Attempts to pull reimplementations of TAPION and TAPIN better into line with originals. 
Also improves whole flow of the fast tape hack that uses them.
 2017-12-28 22:48:04 -05:00
Thomas Harte
c4950574ea Introduces an attempted reimplementation of the MSX BIOS's two main tape reading entry points. 2017-12-26 22:19:37 -05:00
Thomas Harte
0b297f2972 Adds some appropriate costs to the tape players. 2017-12-26 22:13:28 -05:00
Thomas Harte
cbba6a5595 Ensures final few bytes of a CAS file aren't dropped. 2017-12-23 19:54:42 -05:00
Thomas Harte
0a079b0f94 Attempts to fix failure to distinguish end-of-file. 2017-12-23 19:32:24 -05:00
Thomas Harte
9a7e974579 Corrects skipping of every other file, and transition from bytes back into header. 2017-12-23 19:20:04 -05:00
Thomas Harte
f4d414d6e4 Removes stray line break. 2017-12-23 18:42:04 -05:00
Thomas Harte
b4bfcd4279 Switches to an attempt to break the .CAS into files ahead of time. 
Hopefully the better to insert appropriate lengths of header and gap.
 2017-12-23 18:41:50 -05:00
Thomas Harte
e8ddff0ee0 Makes a first, messy, attempt at serialising CAS files into audio. 2017-12-21 22:34:03 -05:00
Thomas Harte
28fb1ce2ae Removes unnecessary logging. 2017-12-20 21:39:17 -05:00
Thomas Harte
f17758e7f9 Attempts better to deal with large numbers. 2017-12-20 21:03:24 -05:00
Thomas Harte
0bb24075b6 Immediate fixes: TSX is seemingly TZX 1.21; the tape motor control works the other way around. 
Input is not yet being recognised.
 2017-12-19 22:17:42 -05:00
Thomas Harte
db6d9b59d0 Attempts to implement TSX support for the MSX. 2017-12-19 21:53:04 -05:00
Thomas Harte
ae21782adc Corrects two Cartridge type mismatches. 2017-12-03 15:43:59 -05:00
Thomas Harte
ca26ce8400 Slightly corrects style errors in the Cartridge hierarchy, and introduces mapping of .ROM to the MSX when appropriate. 2017-12-02 16:01:30 -05:00
Thomas Harte
68a2895753 Adds enough static analyser to get to the MSX itself as the point of failure in SDL/kiosk mode. 2017-11-25 13:18:24 -05:00
Thomas Harte
0eaac99d74 Avoids implicit signed/unsigned comparison in the G64 reader. 2017-11-12 17:48:11 -05:00
Thomas Harte
792061a82b Corrects warnings in the CSW, CPC DSK, ZX8081 data encoding, and PRG and binary cartridges. 2017-11-12 17:46:06 -05:00
Thomas Harte
d2ba7d7430 Corrects GCC warnings in Commodore::File and the FileHolder. 2017-11-12 17:38:21 -05:00
Thomas Harte
282e5c9d3e For GCC's benefit, added impossible default options. 2017-11-12 16:45:31 -05:00
Thomas Harte
ede47d4ba7 Improves type safety within CSW file support. 2017-11-12 16:42:53 -05:00
Thomas Harte
5aef81cf24 Commutes cross-platform #pragma marks to //MARK:s. 2017-11-12 15:59:11 -05:00
Thomas Harte
bce58683fa Corrects insert explicitly to supply a shared_ptr rather than a raw one. 2017-11-11 18:22:41 -05:00
Thomas Harte
2e15fab651 Doubles down on <cX> over <X.h> for C includes, and usage of the namespace for those types and functions. 2017-11-11 15:28:40 -05:00
Thomas Harte
cb0f58ab7a Corrects order-of-initialisation errors in the CPC (again), TextureBuilder, TextureTarget, Z80, MFM parser and binary tape player. 2017-11-10 22:57:03 -05:00
Thomas Harte
d9e56711ce Corrects order-of-initialisation errors in the Amstrad CPC, Vic-20, Oric, Commodore File, MFM disk controller, UEF and Commodore tape parser. 2017-11-10 22:47:10 -05:00
Thomas Harte
46e7c199b2 Corrects improper initialisation order of the Commodore .tap and CRTMachine::Machine. 2017-11-10 22:08:40 -05:00
Thomas Harte
fabaf4e607 Adds missing include files, corrects bad include paths and eliminates the Clang-specific __undefined. 2017-11-10 21:56:53 -05:00
Thomas Harte
cb015c83e1 Eliminated C99-style struct initialisations. 2017-11-10 19:14:19 -05:00
Thomas Harte
2203499215 Enables -Wreorder and corrects a few of the more trivial fixes thereby suggested. 2017-11-09 22:14:22 -05:00
Thomas Harte
c0055a5a5f Further builds up SConstruct, correcting many missed imports and a couple of improper uses of C99 in C++ code. 2017-11-09 22:04:49 -05:00
Thomas Harte
6e1d69581c Eliminates a variety of end-of-line spaces. 2017-11-07 22:54:22 -05:00
Thomas Harte
f95515ae81 Eliminates a large number of instance of end-of-line tabs. 2017-11-07 22:51:06 -05:00
Thomas Harte
794437f20f Corrects fixed buffer size error in FileHolder::check_signature. 2017-11-03 21:43:31 -04:00
Thomas Harte
23d5849cda Attempts to map recognised [M]FM errors back to FDC status codes. 2017-11-03 21:29:42 -04:00
Thomas Harte
5070a8414f Improves FileHolder documentation 2017-11-03 21:29:15 -04:00
Thomas Harte
5a3ca0e447 Adds output for modified CPC DSKs. 2017-11-03 21:10:22 -04:00
Thomas Harte
e384c50580 Switches FileHolder to have a usage much closer to FILE *. 
Thereby opens a route for file format implementations such as that appearing for CPC DSK that create an in-memory copy and perform a full rewrite.
 2017-11-02 22:32:00 -04:00
Thomas Harte
f807a6b608 Generalises the concept of multiple samplings of an FM/MFM sector, simplifying CPC DSK support and paving the way for generic weak/fuzzy bit support. 2017-10-31 21:32:28 -04:00
Thomas Harte
833f8c02a4 Switches the CPC DSK implementation to building an in-memory version of the structure up front. 
Preparatory to making these things writeable.
 2017-10-31 19:41:16 -04:00
Thomas Harte
ad9df4bb90 Commutes uint8_t *, uint16_t *, uint32_t *, size_t, off_t and long to functional-style casts. 2017-10-21 22:30:15 -04:00
Thomas Harte
e983854e71 Converts all uint8_t and uint16_t casts to the functional style. 2017-10-21 21:50:53 -04:00
Thomas Harte
ec999446e8 Commutes int and unsigned casts to the functional style. 2017-10-21 21:00:40 -04:00
Thomas Harte
5e3e91373a Switches all unsigned int and double casts to functional style. 2017-10-21 19:49:04 -04:00
Thomas Harte
7c8e830b90 Adjusted the Acorn tape parser to avoid signed left shifts. 2017-10-17 22:34:49 -04:00
Thomas Harte
7f2febeec9 Ensures complete DPLL initial state assignment. 2017-10-17 22:13:37 -04:00
Thomas Harte
2d7a4fe5f0 Switches the MFM shifter to unsigned accumulation. 
Since left shifting signed numbers is undefined behaviour.
 2017-10-17 22:12:04 -04:00
Thomas Harte
b4583e976e Corrects buffer overwrites resulting from failure to treat a number of records of 0x80 as a special case. 2017-10-17 20:52:16 -04:00
Thomas Harte
44cdc124af Switches to providing a full record of changes to disk images, rather than feeding them a track at a time. 
Gets explicit about `override`s while doing so, to ensure full adaptation.
 2017-10-07 19:37:36 -04:00
Thomas Harte
b37787a414 Ensures lifetime-linked track flushing without relying on virtual calls within a destructor. 2017-10-07 19:14:18 -04:00
Thomas Harte
53b99ea248 Uses Disk::flush_tracks to elide replacement of dirty tracks. 2017-10-06 22:07:42 -04:00
Thomas Harte
97a2be71e3 Introduces flush_tracks to Drive, while switching its interface to using Track::Address and adjusting associated integer types. 2017-10-06 21:45:12 -04:00
Thomas Harte
edb9fd301c Begins this project's conversion to functional-style casts. 2017-10-03 22:04:15 -04:00
Thomas Harte
0fb363ea0e Adds writing support for HFEs. 2017-10-03 21:24:20 -04:00
Thomas Harte
1cc85615d5 Factors HFE track seeking out from the track fetching method. 2017-10-03 20:33:55 -04:00
Thomas Harte
7b01c1bee6 Revokes direct visibility of is_read_only_ to subclasses of FileHolder. 2017-10-03 19:36:06 -04:00
Thomas Harte
35705c5345 Factors out bit reversing from the HFE class. 2017-10-03 19:12:45 -04:00
Thomas Harte
ef605eda51 Factors out commonalities in SSD/DSD and ADF implementations. 2017-09-30 20:30:15 -04:00
Thomas Harte
326857a84d Corrects FM/MFM selection when looking for sectors. 2017-09-29 22:48:00 -04:00
Thomas Harte
5dd3945695 Factors out the more egregious similarities between ADF and SSD. 2017-09-29 22:07:23 -04:00
Thomas Harte
19eb975c73 Adds an intermediate step in CP/M directory parsing. 
To reduce amount of time spent allocating and reallocating buffers.
 2017-09-29 21:38:16 -04:00
Thomas Harte
698ffca51b Recasts the [M]FM parser in terms of the new factoring. 
Temporarily breaks SSD writing support.
 2017-09-29 20:08:36 -04:00
Thomas Harte
fe3cc5c57c Removes dead pragma. 2017-09-28 20:47:25 -04:00
Thomas Harte
f488854720 Switches Oric MFM DSK serialisation to feeding a track serialisation to a shifter. 
Thereby eliminates the parser's need to offer get_track.
 2017-09-27 22:14:50 -04:00
Thomas Harte
51c0c45e04 Turns MFM bit length into a globally-available constant. 2017-09-27 21:30:09 -04:00
Thomas Harte
c3e1489a8e Introduces Track::Address, a parallel to Sector::Address to enable more uniform storage. 2017-09-27 21:29:06 -04:00
Thomas Harte
e3420f62c6 Switches the Acorn ADF implementation to using the new track_serialisation/sectors_from_segment route for decomposition of a track into sectors. 2017-09-26 22:05:33 -04:00
Thomas Harte
9f4a407f94 Switches the track serialiser to a more standard header + implementation separation. 
Also introduces a full priming of the PLL before deserialisation begins.
 2017-09-26 22:01:32 -04:00
Thomas Harte
5dda897334 Changes function name to sector_size — into line with idioms. 2017-09-26 22:00:19 -04:00
Thomas Harte
3982e375e3 Introduces a route from a PCMSegment to a list of [M]FM sectors. 2017-09-25 19:57:11 -04:00
Thomas Harte
a8524daecb Marks the move constructor as noexcept, to improve usage with vector. 2017-09-25 19:53:22 -04:00
Thomas Harte
d1ce764201 Provides SectorsFromSegment, a bitstream to sector converter. 2017-09-24 22:41:16 -04:00
Thomas Harte
8875982e1f Ensures Sectors are move constructible (and still default constructible), and adds proper const qualifiers to Sector::Address. 2017-09-24 22:40:38 -04:00
Thomas Harte
3319a4f589 Isolates those Sector fields that describe its address and makes them usable as a set key. 2017-09-24 21:57:21 -04:00
Thomas Harte
c7f27b2db4 Renames MFM.[c/h]pp as per its new remit: encoding only. 2017-09-24 21:40:43 -04:00
Thomas Harte
631f630549 Severs the MFM parser from the overweight single MFM.hpp. 2017-09-24 20:31:19 -04:00
Thomas Harte
2a08bd9ecc Factors shifting plus stateful [M]FM token recognition out of the MFMDiskController. 
Given the proliferation of MFM-related classes, establishes a subdirectory for them.
 2017-09-24 20:07:56 -04:00
Thomas Harte
f789ee4ff0 Introduces a track to segment decoder. 
This will be needed to make formats like G64 and HFE writeable, but probably also will be usable to speed up static analysis.
 2017-09-23 22:39:19 -04:00
Thomas Harte
d72dad2d1a Severs the DiskImage implementation from its public header file. 2017-09-22 22:46:31 -04:00
Thomas Harte
698e4fe550 Tidies the Disk file hierarchy. 2017-09-22 22:39:23 -04:00
Thomas Harte
b5406b90cd Introduces a new class hierarchy for disk images. 
Increasing independence of format-specific stuff and generic caching without mangling them into a common namespace, and allowing in some cases for a decrease in read/write blocking.
 2017-09-22 20:28:11 -04:00
Thomas Harte
44a56724cb Speeds up byte decoding within sectors for the ahead-of-time MFM parser. 2017-09-16 20:28:24 -04:00
Thomas Harte
a85909198f Adds defences against double calls to end writing. 2017-09-16 17:07:36 -04:00
Thomas Harte
da082673d7 Drives now have a finite number of heads. 
The Amstrad volunteers itself to be single sided. Everything else stays as it was.
 2017-09-15 21:18:36 -04:00
Thomas Harte
662d031e3c Adds exposition on the meaning of a disk controller being in write mode. 2017-09-15 19:14:36 -04:00
Thomas Harte
bf20c717fb The Drive now no longer produces input when in writing mode — other than announcing the index hole. 2017-09-14 22:32:13 -04:00
Thomas Harte
4d4a0cf1d2 Puts the disk controller back into the loop with knowledge about reading mode, and uses that knowledge to cut off the PLL. 2017-09-14 22:30:40 -04:00