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
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
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
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
c23f6d8d19
Corrects type for array accesses.
2018-05-11 21:46:30 -04:00
Thomas Harte
a43ca0db35
Makes the Apple II an activity source.
2018-05-10 22:17:13 -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
c3a2f7717b
Makes attempt to implement support for the Pravetz 8D + 8DOS.
...
i.e. the Disk II wired up to the Oric, with some ROM swaps.
2018-05-08 22:05:43 -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.
...
Specifically: II or II+? Disk II 13- or 16-sector? Or not at all?
2018-05-03 19:37:32 -04:00
Thomas Harte
265bc80d44
Attempts to introduce sleeping to the Disk II.
2018-04-29 17:52:29 -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
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
Thomas Harte
ba43b3e6b8
Reverses bit order of graphics stream; apparently the ROM is backwards.
2018-04-19 20:39:38 -04:00
Thomas Harte
b4a2d1395c
Ensures left and right cursor keys work.
2018-04-18 22:23:31 -04:00
Thomas Harte
f5ae8d0f79
Attempts to be more rigorous about clock rates.
2018-04-18 21:52:22 -04:00
Thomas Harte
5f1c210746
Simplifies and corrects low-resolution colour generation.
...
Possibly disproving the premise for this whole experiment, all colours seem immediately to work correctly. Hmmm.
2018-04-18 21:41:11 -04:00
Thomas Harte
f6c2f6e896
Slightly adjusts colour burst logic to fix transition lines in mixed mode.
2018-04-18 20:39:12 -04:00
Thomas Harte
6547560e52
Gives the CRT the ability to move iCoordinate multiplication outside of the fragment loop.
...
That resolves precision issues, as were plaguing the Apple II.
2018-04-18 19:29:03 -04:00
Thomas Harte
f22c23cb4c
Attempts to bring audio to the Apple II.
...
By factoring the audio toggle out from the MSX.
2018-04-17 22:28:13 -04:00
Thomas Harte
a07c99d778
Completes first draft of Apple II video hardware.
2018-04-17 22:04:02 -04:00
Thomas Harte
1c605d58e3
Removes the CRT requirement for an integral relationship between cycles and samples.
2018-04-16 20:00:56 -04:00
Thomas Harte
6a79ce9eb1
Adds enough to the Apple II's video that I can see what's going on with soft switches.
2018-04-15 21:55:26 -04:00
Thomas Harte
465c38f03c
Extends the keyboard protocol and adds keyboard input to the Apple II.
2018-04-15 21:11:30 -04:00
Thomas Harte
be05d51e07
Now gives something a lot like the proper character output.
2018-04-15 20:31:04 -04:00
Thomas Harte
9bc470027e
Put enough in place to get a visual representation of video memory.
...
Not the correct one, and so as to indicate that the machine isn't booting, surprisingly.
2018-04-15 19:35:08 -04:00
Thomas Harte
335c633884
Retrenches temporarily to full 8bpp output; introduces extra half a colour cycle of pause.
2018-04-15 18:54:05 -04:00
Thomas Harte
abe47b6ed8
Makes first attempt at a stable display area. Not entirely successful.
2018-04-15 18:00:40 -04:00
Thomas Harte
61659faeaa
Adds the necessary call-outs to allow implementation of video generation.
2018-04-15 15:13:07 -04:00
Thomas Harte
71adb964e5
The Apple II now has a functioning processor, ROM and RAM.
2018-04-14 21:41:26 -04:00
