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Author SHA1 Message Date
Thomas Harte
07df7572b3 Switch to preferred Acorn-world extension: DAT. 2021-01-31 21:03:09 -05:00
Thomas Harte
906b6ccdb7 This appears to be sufficient for the Electron to _read_ SCSI. 
So that's step one.
 2021-01-31 18:36:29 -05:00
Thomas Harte
f1ba040dd8 This is probably how Acorn hard disk images look (?) 2021-01-31 16:00:52 -05:00
Thomas Harte
8db289e229 Adds some notes-to-self on SCSI and a route to using Acorn's ADFS. 2021-01-31 13:12:59 -05:00
Thomas Harte
8142487d57
Merge pull request #867 from TomHarte/ElectronStarCommand 
Pause longer for Electron commands that start with a modifier.
 2021-01-31 12:34:19 -05:00
Thomas Harte
2860be7068 Permit a longer pause at startup for Electron commands that start with shift, control or func. 2021-01-31 12:25:22 -05:00
Thomas Harte
b5ecd5f7ef Merge branch 'master' into AppleIIgs 2021-01-31 11:47:40 -05:00
Thomas Harte
7e720e754b
Merge pull request #866 from TomHarte/ElectronUI 
Adds UI for the new Electron configuration options.
 2021-01-31 11:44:47 -05:00
Thomas Harte
41a618c957 Adds new Electron configuration options to the Qt UI. 2021-01-31 10:13:32 -05:00
Thomas Harte
3d85e6bb97 Adds Mac UI for new Electron configuration options. 2021-01-31 09:49:51 -05:00
Thomas Harte
d54085c7fd
Merge pull request #865 from TomHarte/ADL 
Electron: adds support for the ADL file format, and logic for AP6 and sideways RAM selection
 2021-01-31 09:37:24 -05:00
Thomas Harte
0bb8bdf938 Switch to O(1) test, which avoids an extra #include. 2021-01-30 23:33:03 -05:00
Thomas Harte
865058b8d6 Adds basic text search to achieve AP6 detection. 2021-01-30 23:32:04 -05:00
Thomas Harte
b6bc0a21fb Adds a TODO on intended logic around the AP6 ROM. 
... plus a promise as to intent in the Electron-specific ROM readme.
 2021-01-30 23:20:43 -05:00
Thomas Harte
8311ac4a7c Adds parsing of the top-level directory for ADFS images. 2021-01-30 23:10:59 -05:00
Thomas Harte
4636d8dfb7 Adds support for installing the AP6 ROM and/or sideways RAM. 2021-01-30 19:38:19 -05:00
Thomas Harte
ac95e4d758 Adds support for ADL-format disk images. 2021-01-30 18:39:29 -05:00
Thomas Harte
b8c6d4b153 Rips out my high-level ADB microcontroller protocol implementation. 
Adds just enough that the main computer validates the ADB controller as present and talking.
 2021-01-30 17:53:27 -05:00
Thomas Harte
5eddc92846 Implements direction registers. 2021-01-28 21:06:11 -05:00
Thomas Harte
f50e8b5106 If I'm going to maintain the max_address approach, & is 'correct'. 
% +1 would be 'more correct', but I think this approach is probably misguided.
 2021-01-27 18:31:11 -05:00
Thomas Harte
dcc2fe0990 Improves M50470 entry-point detection, adds test output. 2021-01-26 21:29:17 -05:00
Thomas Harte
56111c75ae Makes first efforts towards disassembly. 2021-01-26 19:52:30 -05:00
Thomas Harte
cc90935abd Starts to provide just a touch of reflection. 2021-01-26 19:22:00 -05:00
Thomas Harte
413e42e1b6 Attempts to fix BBC. 
But thereby stops all ADB output.
 2021-01-25 22:34:03 -05:00
Thomas Harte
fc4bda0047 Experimentally flipping interpretation of the output bit gives something closer to coherent. 2021-01-25 22:02:39 -05:00
Thomas Harte
c8beb59172 Attempts properly to track ADB bus activity. 
Output is not yet a valid ADB stream. Work to do.
 2021-01-25 17:43:22 -05:00
Thomas Harte
8789ffda15 Corrects performer storage, RMW/W confusion, implicit casts, port readback. 2021-01-24 22:30:42 -05:00
Thomas Harte
e8e604dc3c Attempts to wire up M50470 and GLU. 
Resulting in an unexpected interest in R15. Bugs to find, I guess.
 2021-01-24 18:07:05 -05:00
Thomas Harte
57e0fdfadc Ensures ADB microcontroller is clocked. 
And runs at the 'correct' speed (i.e. modulo my instruction-by-instruction implementation).
 2021-01-23 22:55:12 -05:00
Thomas Harte
7f62732476 Fixes kiosk target, accepts that I'll probably never add UI tests. 2021-01-23 21:59:21 -05:00
Thomas Harte
36aebe0ff9 Posts cycle lengths. 2021-01-23 21:58:52 -05:00
Thomas Harte
051d2b83f4 Corrects TSX lookup. 2021-01-23 15:45:21 -05:00
Thomas Harte
17b12120eb Corrects bit-selection shifts. 2021-01-21 23:13:00 -05:00
Thomas Harte
6e9ce50569 Corrects duration-based iteration. 2021-01-21 23:05:43 -05:00
Thomas Harte
adef2e9b4e Starts formalising end conditions. 2021-01-21 22:36:44 -05:00
Thomas Harte
0fafbf5092 Completes M50740 instruction set. 2021-01-21 19:08:38 -05:00
Thomas Harte
3c887aff95 Improves consistency. 2021-01-21 18:58:22 -05:00
Thomas Harte
e5076b295b Corrects namespace. 2021-01-21 18:58:11 -05:00
Thomas Harte
c10c161d39 Implements ADC and SBC. 2021-01-21 18:53:24 -05:00
Thomas Harte
04024ca159 Adds BIT. 2021-01-20 21:41:43 -05:00
Thomas Harte
64d556f60f Implements shifts and rotates. 2021-01-20 21:39:13 -05:00
Thomas Harte
8564e7406b Corrects index-mode CMP, LDA. 2021-01-20 21:32:46 -05:00
Thomas Harte
ebdb58d790 Seemingly advances to the first indefinite loop. 2021-01-20 21:18:52 -05:00
Thomas Harte
cf8afc70b2 Takes a swing at BBC, BBS. 2021-01-20 20:52:04 -05:00
Thomas Harte
4f02e8fbaf Knocks off the low-hanging instruction fruit. 2021-01-20 20:41:35 -05:00
Thomas Harte
6e618a6bb7 Adds a list of missing instructions. 
Not looking too bad; subject to not yet having a strategy for interrupts, timing, nothing yet implemented for timers, IO ports...
 2021-01-20 20:37:35 -05:00
Thomas Harte
df1bc18fb3 Pushes ahead to what will be my first interaction with the T flag. 2021-01-20 20:27:09 -05:00
Thomas Harte
9f12ce2fb8 Corrects RTS, adds the remainder of the direct flag manipulations. 2021-01-20 20:16:55 -05:00
Thomas Harte
b9672c0669 Gets beyond a prima facie convincing JSR/RET. 2021-01-20 18:21:44 -05:00
Thomas Harte
e58608b25a Gets as far as executing a first loop. 2021-01-20 18:15:24 -05:00