Thomas Harte
b3f4d0ed8c
Imposes a three-cycle penalty for SN76489 access.
...
This is my reading of (i) the SN76489 data sheet; plus (ii) the ColecoVision schematic.
2018-05-16 19:06:03 -04:00
Thomas Harte
7c2721d54d
Adjusted number again. But we'll see.
2018-05-15 20:43:13 -04:00
Thomas Harte
8907d0a9a7
Adds a low-pass filter to the Apple II's audio.
2018-05-14 21:56:14 -04:00
Thomas Harte
5107c7c23d
Ensures all keypresses are entered as upper case.
2018-05-13 22:40:28 -04:00
Thomas Harte
4dbd1f1358
Corrects Disk II ROM visibility.
2018-05-13 22:36:02 -04:00
Thomas Harte
dea9892a85
Attempts to implement vapour lock bus behaviour.
2018-05-13 18:53:32 -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
2252c29495
Switches the Oric to string insertion at the time of consumption.
...
To avoid issues around keyboard scanning being decoupled from consumption via IRQ, but not buffered. Keys pressed while BASIC is otherwise busy are just lost.
2018-05-13 14:02:46 -04:00
Thomas Harte
39c0bc6c47
Factors string serialisation with \n\r conversion out of the Apple II and reuses it with the Oric.
2018-05-13 13:57:19 -04:00
Thomas Harte
a6b8e88406
Implements type_string for the Apple II.
2018-05-13 11:30:04 -04:00
Thomas Harte
d0fd4dd4db
The MSX is now an activity source.
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Completing the set.
2018-05-12 17:32:53 -04:00
Thomas Harte
3ba6b6f1ee
Makes the Oric an event source.
2018-05-11 23:05:36 -04:00
Thomas Harte
bc464e247f
The 1540 and, by extension, the Vic-20 are now activity sources.
2018-05-11 22:24:33 -04:00
Thomas Harte
c23f6d8d19
Corrects type for array accesses.
2018-05-11 21:46:30 -04:00
Thomas Harte
39d779edf0
Makes CPC an activity source.
2018-05-11 21:45:46 -04:00
Thomas Harte
a43ca0db35
Makes the Apple II an activity source.
2018-05-10 22:17:13 -04:00
Thomas Harte
ef19a03efc
Drives can now deliver activity events.
2018-05-10 21:54:10 -04:00
Thomas Harte
85e1610627
Merge branch 'master' into ActivityReceiver
2018-05-10 20:49:32 -04:00
Thomas Harte
d16ae84d0b
Reduces number of Apple II video flushes, to reduce processing cost.
2018-05-10 20:48:57 -04:00
Thomas Harte
95f859cf5c
Merge branch 'master' into ActivityReceiver
2018-05-10 20:26:50 -04:00
Thomas Harte
312171fa59
Pulls out a couple of repeating constants.
2018-05-09 20:28:25 -04:00
Thomas Harte
c3a2f7717b
Makes attempt to implement support for the Pravetz 8D + 8DOS.
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i.e. the Disk II wired up to the Oric, with some ROM swaps.
2018-05-08 22:05:43 -04:00
Thomas Harte
70e6c3b2f6
Introduces the ActivityObserver protocol for LEDs, drive events, etc.
...
The Electron's caps lock LED is the test case.
2018-05-07 21:57:54 -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
d613c3c187
Adds an implementation of the language card.
2018-05-06 16:17:11 -04:00
Thomas Harte
4c4ab25d0e
Attempts to rationalise Apple II address decoding.
2018-05-05 20:24:03 -04:00
Thomas Harte
723ee88043
Introduces configuration options for the Apple II.
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Specifically: II or II+? Disk II 13- or 16-sector? Or not at all?
2018-05-03 19:37:32 -04:00
Thomas Harte
eecea93b3b
Simplifies the test for resetting the ZX80/81 line counter.
2018-05-01 21:31:37 -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
265bc80d44
Attempts to introduce sleeping to the Disk II.
2018-04-29 17:52:29 -04:00
Thomas Harte
10c0e687f5
Attempts to introduce sleeping for the Disk II.
2018-04-29 17:51:10 -04:00
Thomas Harte
850a394eb5
Corrects graphics 'carry' — the potential holdover into delayed bytes.
2018-04-26 19:26:43 -04:00
Thomas Harte
244721a6f8
Corrects graphics mode address generation.
2018-04-25 22:26:01 -04:00
Thomas Harte
b4f6dee954
Ensures the contextually-proper boot and state machine ROMs are requested.
2018-04-24 20:25:02 -07:00
Thomas Harte
2685e9087e
Changes the default-assigned Disk II card slot from 7 to 6.
2018-04-24 20:24:44 -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
2f2390b5aa
Adds F12 as a reset key, triggers cards upon a flush.
2018-04-24 09:03:30 -07:00
Thomas Harte
af61bbc3e2
Attempts actual performance of the state machine.
2018-04-24 08:29:05 -07:00
Thomas Harte
56d88f23ef
Teeters closer and closer to trying actually to run the Disk II state machine.
2018-04-23 22:29:36 -07:00
Thomas Harte
4bff44377a
Attempts to route Disk II requests to the thing itself.
2018-04-23 22:11:31 -07:00
Thomas Harte
7463edaa1b
Attempts to bring card support to the Apple II, and adds a 'has disk' flag.
2018-04-23 21:14:45 -07:00
Thomas Harte
e92e06a5f4
Doubled down on the ROMMachine::ROMFetcher typedef.
2018-04-23 20:20:14 -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
5968c9a391
Corrects Apple II output audio.
2018-04-21 14:56:50 -07:00
Thomas Harte
aebe8a64a2
Removes empty printf.
2018-04-20 10:58:23 -04:00
Thomas Harte
b8ae283049
Implements correct text inverse/flashing.
2018-04-19 22:14:22 -04:00
Thomas Harte
e03a403a51
Adds exposition.
2018-04-19 20:41:09 -04:00
