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.
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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.
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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
