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5,036 Commits 8 Branches 121 Tags 496 MiB
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681 Commits

Author SHA1 Message Date
Thomas Harte
6c588a1510 Makes some further random swings at tracking the startup procedure. 2019-06-28 13:03:47 -04:00
Thomas Harte
00c32e4b59 Further miscellaneous changes to debug logging. All temporary. 2019-06-18 10:34:31 -04:00
Thomas Harte
877b46d2c1 Advances IWM/drive emulation very close to the point of 'Welcome to Macintosh'. 2019-06-15 16:08:54 -04:00
Thomas Harte
cc7226ae9f Starts trying to get a bit more rigorous about collected meanings. 2019-06-13 22:48:10 -04:00
Thomas Harte
bde975a3b9 Possibly mights the tiniest bit of headway with 'the IWM'. 
I'm now pretty sure that my 3.5" drive, which for now is implemented in the IWM (yuck) is just responding to queries incorrectly.
 2019-06-13 22:38:09 -04:00
Thomas Harte
f6f9024631 Corrects Macintosh aspect ratio (and framing). 2019-06-13 18:41:38 -04:00
Thomas Harte
535747e3f2 Restores single-line logging format. 2019-06-13 13:35:03 -04:00
Thomas Harte
d6150645c0 By hook or by crook, mouse input now works. 2019-06-12 22:19:25 -04:00
Thomas Harte
ccd2cb44a2 Fills in enough of the SCC to allow completion of the Macintosh side of that relationship. 2019-06-12 17:51:50 -04:00
Thomas Harte
ad8b68c998 Switches to a proper form of zero-upon-read data. 
Not that it's necessarily correct.
 2019-06-11 19:53:51 -04:00
Thomas Harte
3c075e9542 Switches drives 0 and 1. 2019-06-10 14:58:39 -04:00
Thomas Harte
9230969f43 Corrects enough of the 6522 and Keyboard to get an initial command seemingly working. 2019-06-10 09:28:27 -04:00
Thomas Harte
0e16c67805 Improves shift register connection, towards having the keyboard function properly. 
It now seems not to receive a command terminator, but is at least getting a command.
 2019-06-08 23:04:55 -04:00
Thomas Harte
697e094a4e Sketches out the absolute basics of an SCC interface. 2019-06-08 18:47:11 -04:00
Thomas Harte
50d37798a2 Eradicates magic constants. 2019-06-06 21:37:43 -04:00
Thomas Harte
e9d0676e75 Fiddles further with the tachometer. 2019-06-06 21:36:19 -04:00
Thomas Harte
7591906777 Numerous IWM fixes: the machine now seems to be trying to measure the tachometer. 2019-06-06 18:32:11 -04:00
Thomas Harte
a413ae11cb Makes some sort of first attempt at having the IWM read. 2019-06-04 22:13:00 -04:00
Thomas Harte
b8a1553368 Adds putative support for PlusToo-style BIN files. 
Albeit a bit of a guess, since it's not intended to be an emulator file format.
 2019-06-04 21:41:09 -04:00
Thomas Harte
8557558bd8 Mildly improves investigatory reporting. 2019-06-03 21:51:45 -04:00
Thomas Harte
abe55fe950 Adds Timer 1 toggling of PB7. 2019-06-03 15:39:20 -04:00
Thomas Harte
da2b190288 Stores expected bit length. 2019-06-01 19:08:29 -04:00
Thomas Harte
48d837c636 Attempts to respond more sensibly to various queries. 
Including adding a 1-second delay on motor off.
 2019-06-01 18:43:47 -04:00
Thomas Harte
723137c0d4 With some time additions to the 6522, starts wiring in Macintosh audio. 
The audio buffer is also the disk motor buffer, so this is preparatory to further disk work.
 2019-06-01 14:39:40 -04:00
Thomas Harte
4197c6f149 Attempts to make some further semantic sense of the various IWM controls. 2019-05-30 22:17:49 -04:00
Thomas Harte
4632be4fe5 Wires up the final IWM signal, SEL, preparatory to an implementation. 2019-05-30 12:08:00 -04:00
Thomas Harte
8293b18278 Adds a TODO on what I think might be an incorrect implementation? 2019-05-08 15:06:40 -04:00
Thomas Harte
2ba0364850 Adds the shift register interrupt. 2019-05-08 15:02:07 -04:00
Thomas Harte
2e7bc0b98a Attempts the shift register. 2019-05-08 14:54:40 -04:00
Thomas Harte
8278809383 Attempts to get more rigorous on communicating outward control line changes. 2019-05-08 13:33:22 -04:00
Thomas Harte
4367459cf2 Takes a first go at handshake and pulse modes. 2019-05-08 12:48:29 -04:00
Thomas Harte
254132b83d Eliminates 6522Base in pursuit of working handshake modes. 
Specifically: this means that the places from which the BusHandler may be called are more numerous.
 2019-05-08 12:35:17 -04:00
Thomas Harte
7e6d4f5a3e Adds emulation of the real-time clock. 2019-05-08 00:12:19 -04:00
Thomas Harte
ce099a297a Eliminates RAM writes in ROM area. 
I no longer think that logic is correct.
 2019-05-07 17:16:22 -04:00
Thomas Harte
96facc103a Adds an IWM shim and corrects graphics output. 
... now that there is some.
 2019-05-05 21:55:34 -04:00
Thomas Harte
62a1d69cee Implements proper AY IO output behaviour. 2019-03-05 20:20:26 -05:00
Thomas Harte
d97348dd38 Eliminates dangling uses of printf. 2019-03-02 18:07:05 -05:00
Thomas Harte
7030abca97 Corrects PAL colours for the Vic-20. 2019-02-25 19:28:52 -05:00
Thomas Harte
e5addb27ec Corrects log output. 2019-02-18 20:49:01 -05:00
Thomas Harte
2ef6d4327c Resolves further build warnings. 2019-01-13 20:37:50 -05:00
Thomas Harte
248a8efd2f Corrects declared pixel clock GCD. 2019-01-06 16:32:13 -05:00
Thomas Harte
601961deeb Wires through set_display_type. 2018-11-29 20:44:21 -08:00
Thomas Harte
64465f97b6 Starts towards reintroducing the proper mechanisms for selecting a display type at runtime. 2018-11-28 17:53:33 -08:00
Thomas Harte
5618288459 Reduces visible area, producing a tighter crop. 2018-11-25 22:32:12 -05:00
Thomas Harte
ee89be6730 Removes many stray spaces. 2018-11-23 22:32:32 -05:00
Thomas Harte
770d7e90e9 Removes stale sampling functions. 2018-11-22 22:47:29 -05:00
Thomas Harte
b9aca39eb0 Reintroduces Vic-20 output. 
Resolving errors in shader generation while I'm here.
 2018-11-22 22:43:42 -05:00
Thomas Harte
c5d9bf2c12 Optimises slightly for black borders. 
Specifically to help to debug proper display of unused lines in the new scan target.
 2018-11-17 18:23:42 -05:00
Thomas Harte
15b1176841 Ensures no border output if space is not allocated. 2018-11-14 22:32:33 -05:00
Thomas Harte
9dff13cbbf Re-establishes output from the machines with 9918s and derivatives. 2018-11-14 22:25:19 -05:00