Ryan Carsten Schmidt
01cf7462d5
Disk II: Don't overwrite data bus when not asked to
...
Return DidNotLoad rather than 0xff from read_address on odd-numbered
addresses so that the data bus is not overwritten with 0xff on those
accesses.
2023-12-05 10:03:52 -06:00
Ryan Carsten Schmidt
b91a791e01
Fix Disk II sense-write-protect clocking preference
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Ensure we're actually in the sense-write-protect loop before deciding
that we don't need to process anymore.
Closes #1218
2023-12-04 09:19:52 -06:00
Ryan Carsten Schmidt
ab608178f3
Consider Disk II state machine state C to be a NOP
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Continuation of #1224
2023-12-04 08:13:32 -06:00
Ryan Carsten Schmidt
3293ab48ce
Handle C, E, F operations in Disk II state machine
...
This shouldn't matter since these operations are not requested by the
state machine but this is what those operations should do according to
Understanding the Apple II, Table 9.3, page 9-15.
2023-11-29 05:50:20 -06:00
Thomas Harte
8578dfbf22
Eliminate various other errant spaces.
2023-05-16 16:40:09 -04:00
Thomas Harte
2b56b7be0d
Simplify namespace syntax.
2023-05-10 16:02:18 -05:00
Thomas Harte
d9d20d9d30
Walk back slightly.
2021-10-14 18:02:58 -07:00
Thomas Harte
689bfbbdb3
Be overt in initialiser list.
2021-10-14 16:57:26 -07:00
Thomas Harte
c8699d9770
Correct Disk II sleeping test to allow for spin-down.
2021-07-16 17:12:57 -04:00
Thomas Harte
6839e9e3b3
Ensures no double definition of NDEBUG.
2021-03-07 12:52:54 -05:00
Thomas Harte
71a107fe75
Silences the IWM again, for now.
2021-02-23 21:57:19 -05:00
Thomas Harte
a3e98907ca
Removes temporary printf.
2021-02-14 21:03:54 -05:00
Thomas Harte
ee5f45c979
Merge branch 'master' into AppleIIgs
2020-12-29 22:16:23 -05:00
Thomas Harte
dfe4e49110
Ensure proper in-memory ordering of the b72a2c70 ROM.
2020-12-29 22:08:48 -05:00
Thomas Harte
4a42de4f18
Attempts to add 5.25" drive support to the IIgs.
...
I want to try some classic software.
2020-11-20 21:37:17 -05:00
Thomas Harte
98347cb1c3
Starts in the direction of audio support.
2020-11-18 18:39:11 -05:00
Thomas Harte
cddd72876f
Flips meaning of ejected bit, to please the IIgs.
2020-11-18 17:20:48 -05:00
Thomas Harte
37815a982a
Much logging later, corrects 7Mhz IWM windows.
...
Confirmed by mathematics — the new ones are seven-eighths the length of the established 8Mhz windows — and with reference to suitable Apple documentation.
2020-11-13 22:05:45 -05:00
Thomas Harte
b0fc2f6ecf
Amps up logging.
...
Current suspicion is that the IIgs isn't getting a clean byte stream, never mind whether my assumption of exactly-Mac-style GCR holds (which it probably doesn't).
2020-11-12 21:54:54 -05:00
Thomas Harte
81969bbea9
Improves logging, at least for now.
2020-11-12 21:17:14 -05:00
Thomas Harte
1f5908dc51
Corrects logging output.
2020-11-11 20:26:04 -05:00
Thomas Harte
72884c3ead
Does a better job of shifting output; takes a new guess at the no-receiver case.
...
ROM03 at least now reaches "check startup device!"
2020-11-11 20:19:35 -05:00
Thomas Harte
80358cf5bd
Shift output even if nobody is listening.
2020-11-11 20:04:48 -05:00
Thomas Harte
6d511f01a4
Ensures intended no-drive behaviour; no more risks with dangling pointers or nullptr.
2020-11-11 17:54:21 -05:00
Thomas Harte
6d3d7c6006
It seems like this fix is no longer needed.
2020-11-11 17:30:22 -05:00
Thomas Harte
8aeebdbc99
Remove redundant comment.
2020-07-16 23:26:45 -04:00
Thomas Harte
2477752fa4
Adds further [[fallthrough]] attributes.
2020-06-19 23:36:51 -04:00
Thomas Harte
73131735fa
Further qmake warning corrections.
2020-05-30 19:31:17 -04:00
Thomas Harte
267006782f
Starts to add Qt target; resolves many build warnings.
2020-05-30 00:37:06 -04:00
Thomas Harte
25996ce180
Further doubles down on construction syntax for type conversions.
2020-05-09 23:00:39 -04:00
Thomas Harte
31c6faf3c8
Adds a bunch of consts.
2020-05-09 21:23:52 -04:00
Thomas Harte
294e09f275
All these 'override's can be 'final's.
...
At least for the purpose of being communicative. I doubt there's much to gain in terms of compiler output — the DiskImageHolder can avoid some virtual lookups but nothing else leaps out.
2020-01-23 22:57:51 -05:00
Thomas Harte
274867579b
Deploys constexpr as a stricter const.
2019-12-22 00:22:17 -05:00
Thomas Harte
1c154131f9
Expands size of storage in Cycles/HalfCycles; adjusts widely to compensate.
2019-10-29 22:36:29 -04:00
Thomas Harte
7758f9d0a9
Improves nomenclature.
2019-09-24 22:31:36 -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
96005261c7
Adds activity lights for Macintosh disk activity.
...
Prompting a quick fix to drives not spinning down.
2019-08-02 16:26:23 -04:00
Thomas Harte
335dda3d55
Attempts more accurately to match Apple's windowing logic.
2019-08-02 12:49:45 -04:00
Thomas Harte
9bbccd89d3
Adds an extended rationale for current implementation.
...
Also strips some cruft of prior guesses.
2019-07-31 23:19:46 -04:00
Thomas Harte
2aa308efdd
Tweaks magic formulas.
...
The computer now at least seeks outward, until this attempt at drive speed calculation fails.
2019-07-30 16:18:36 -04:00
Thomas Harte
74c18d7861
Attempts a full wiring up of 400kb drive speed.
2019-07-30 15:08:55 -04:00
Thomas Harte
85cf8d89bc
Ensures an initial non-zero value.
2019-07-25 21:47:44 -04:00
Thomas Harte
d69aee4972
Removes stray \n.
2019-07-23 22:17:46 -04:00
Thomas Harte
67055d8b56
Reduces CheckingWriteProtect costs, negligibly.
2019-07-15 22:39:55 -04:00
Thomas Harte
7baad61746
Attempts a full implementation of asynchronous write mode.
2019-07-15 17:11:12 -04:00
Thomas Harte
1d1e0d74f8
Corrects and introduces new parts.
2019-07-12 21:37:33 -04:00
Thomas Harte
d53d1c616f
Continues trying to get to write support.
2019-07-12 21:20:05 -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
b730ac5d5a
Reintroduces 1-second disable implementation.
2019-07-11 23:02:47 -04:00
Thomas Harte
c8917e677b
Edging towards implementing IWM write support, but mainly tidied up.
2019-07-11 21:42:34 -04:00
