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Author SHA1 Message Date
Thomas Harte
7dcb0553e4 Switches to a target-centric view of shadowing. 2021-02-27 22:13:10 -05:00
Thomas Harte
2a7ea9f57c Merge branch 'master' into AppleIIgs 2021-02-26 21:31:18 -05:00
Thomas Harte
e2b20568c6
Merge pull request #873 from TomHarte/Mac128kb 
Fixes 400kb drive PWM interpretation; enables Mac 128kb and 512kb.
 2021-02-26 21:29:57 -05:00
Thomas Harte
4f5eb4d71b Adds the Mac 128k & 512k as Qt options. 2021-02-26 21:25:11 -05:00
Thomas Harte
a1df8452ce Add the 128kb and 512kb Macintoshes as selectable options in macOS. 2021-02-26 21:22:54 -05:00
Thomas Harte
9781460c41 Thanks to a hint from the MAME guys: finally completes Macintosh 128kb and 512kb emulation (!) 2021-02-26 21:22:35 -05:00
Thomas Harte
55c9d152e9 Slightly smarter: this does branchless shadowing without additional storage. 2021-02-24 18:46:41 -05:00
Thomas Harte
71a107fe75 Silences the IWM again, for now. 2021-02-23 21:57:19 -05:00
Thomas Harte
6cf9099ce1 Don't clear the mouse data full flag until both registers have been read. 2021-02-23 21:57:02 -05:00
Thomas Harte
e6dc39f6f0 Makes an attempt at mouse event transmission. 2021-02-19 22:48:15 -05:00
Thomas Harte
f6466fd657 Remove temporary hackery. 2021-02-19 22:47:50 -05:00
Thomas Harte
28ce675c96 Takes a further stab at ::CommandDataIsValid. 2021-02-19 22:22:14 -05:00
Thomas Harte
3d91b0a31b Fixes keyboard data return. 
Input sort of works now! Except that key repeat is way out of control.
 2021-02-19 21:55:06 -05:00
Thomas Harte
5d1970d201 Adds a hacky different guess at how register access might work. 2021-02-19 21:46:18 -05:00
Thomas Harte
72d7901c88 Takes a shot at the keyboard data full flag. 
Just a guess. But likely?
 2021-02-19 20:06:12 -05:00
Thomas Harte
60cfec6a65 Amongst ever more cruft, adds a couple of extra asserts. 2021-02-18 22:49:48 -05:00
Thomas Harte
2e9065b34c Increases number of fixed initial values. 2021-02-18 22:48:53 -05:00
Thomas Harte
992ee6d631 Don't zero out the program bank until after it has headed stackward. 2021-02-17 22:08:08 -05:00
Thomas Harte
772093c311 Add missing header. 2021-02-16 22:51:57 -05:00
Thomas Harte
e42843cca0 This may temporarily exhaust my wit for asserts. 2021-02-16 22:47:46 -05:00
Thomas Harte
3336a123f8 Asserts even more overtly. 2021-02-16 22:33:28 -05:00
Thomas Harte
bd54e30748 Adds workaround for Sweet 16, which can produce bad data. 2021-02-16 22:21:10 -05:00
Thomas Harte
35be402354 Improve sanity check. 2021-02-16 19:47:25 -05:00
Thomas Harte
28bd620e7f Adds joystick support to the IIgs. 2021-02-16 19:39:22 -05:00
Thomas Harte
96f2d802d9 Adds a safeguard against undefined behaviour in the debugger. 2021-02-16 19:17:54 -05:00
Thomas Harte
b117df3367 Factors out joystick logic. 2021-02-16 19:17:32 -05:00
Thomas Harte
fa8236741d Takes a shot at an ADB mouse. 2021-02-15 20:49:16 -05:00
Thomas Harte
e16d5f33d1 Adds service requests. The microcontroller now appears to consume keyboard events. 2021-02-15 20:33:10 -05:00
Thomas Harte
2a45e7a8d4 Slows timer X, to what may or may not be correct. 2021-02-15 16:40:27 -05:00
Thomas Harte
f8f0ff0fae Add timer X counting. 
Still no interrupts.
 2021-02-15 16:29:25 -05:00
Thomas Harte
f5dcff2f29 Honours interrupt vector. 2021-02-15 15:05:56 -05:00
Thomas Harte
e773b331cd Implements register 2 listen. 2021-02-15 15:05:46 -05:00
Thomas Harte
99c21925f4 Makes attempt at keyboard mapping. 2021-02-15 15:00:12 -05:00
Thomas Harte
eccf5ca043 Makes first effort to wire up the ADB vertical blank input. 
However: looking at the disassembly, I'm not sure it really is wired to INTR. So work to do.
 2021-02-14 22:20:58 -05:00
Thomas Harte
24af62a3e5 Sets a default handler of 1. 2021-02-14 22:20:07 -05:00
Thomas Harte
52cf15c3e6 Attempts to route out modifier state. 2021-02-14 21:15:31 -05:00
Thomas Harte
a791680e6f Implements set_status as per advice. 2021-02-14 21:04:20 -05:00
Thomas Harte
a3e98907ca Removes temporary printf. 2021-02-14 21:03:54 -05:00
Thomas Harte
6e53b4c507 Corrects centralised ADB decoder. 
I still think it's appropriate to do this in only a single place, given that using it is optional.
 2021-02-14 20:41:05 -05:00
Thomas Harte
52c38e72f6 Starts seeking to automate register 3 handling. 
Immediate pitfall: byte capture on the bus side isn't working correctly.
 2021-02-14 20:37:33 -05:00
Thomas Harte
a51d143c35 Corrects reactive-device transmission logic. 
Albeit that I'm still not properly responding to register 3 stuff, so the ADB bus needn't believe anything is out there. Also, without VSYNC being piped to the microcontroller it may well just not be polling anyway.
 2021-02-14 18:54:22 -05:00
Thomas Harte
17e9305282 Starts adding a keyboard. 2021-02-13 23:16:45 -05:00
Thomas Harte
c284b34003 Resolves inability of ADB microcontroller to read its own ROM (!) 2021-02-13 17:53:40 -05:00
Thomas Harte
2ab3bba695 Attempts GLU register latching, restoring expected startup sequence. 2021-02-13 17:38:42 -05:00
Thomas Harte
2c4dcf8843 Edges towards implementing an ADB device. 2021-02-12 21:50:24 -05:00
Thomas Harte
ea40b2c982 Takes a stab at implementing device response. 2021-02-12 18:56:43 -05:00
Thomas Harte
adfdfa205f Starts to establish the means by which I'll implement ADB devices. 2021-02-12 18:42:12 -05:00
Thomas Harte
e83b2120ce Tidies up, allows Operations and AddressingModes to be posted directly to ostreams. 2021-02-10 21:46:56 -05:00
Thomas Harte
33abdc95aa Adds a helper for decoding ADB commands. 
Still very noticeably to do: any sort of standard part for devices to respond to the bus.
 2021-02-10 21:39:33 -05:00
Thomas Harte
6ca8aa99fc Commit SDL and Qt project files; improve commenting. 2021-02-10 21:28:32 -05:00