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Author SHA1 Message Date
Thomas Harte
6902251d8b Fixed: returns video address in bytes, not words. 2019-11-08 20:47:08 -05:00
Thomas Harte
0b683b0360 Adds some sanity checks. 2019-11-08 20:46:24 -05:00
Thomas Harte
5d5dc79f2c Corrects raster race condition with CPU. 2019-11-07 23:27:05 -05:00
Thomas Harte
68f9084d9e Fixes timing of wrap. 2019-11-07 23:24:51 -05:00
Thomas Harte
b7c407be10 The palette is meant to be read/write. 2019-11-07 23:11:06 -05:00
Thomas Harte
f45798faf0 Corrects initial safe value of line_length_. 2019-11-07 22:53:26 -05:00
Thomas Harte
7c66d7a13c Corrects sync and line-length latch timings. 2019-11-07 22:53:04 -05:00
Thomas Harte
f9a35c6636 Corrects potential wrap error for non-single-byte targets. 2019-11-07 22:23:26 -05:00
Thomas Harte
5e1570258d I think the horizontal interrupt is blank, not sync. 2019-11-07 22:00:50 -05:00
Thomas Harte
fc8021c0b0 Adds a centre crop. 2019-11-07 20:02:45 -05:00
Thomas Harte
c9cd56915e Corrects typo that was adding an extra line of PAL video. 2019-11-07 19:55:49 -05:00
Thomas Harte
1fd19c5786 Attempts to add proper bus timing. 2019-11-07 19:55:00 -05:00
Thomas Harte
ce66b5fd9c Corrected member variable names. 2019-11-07 19:44:22 -05:00
Thomas Harte
8aa425c9d8 Fixes medium resolution mode. 2019-11-06 23:25:36 -05:00
Thomas Harte
ec68bc5047 Corrects output glitches: channel de sync and improper border beginnings. 2019-11-06 22:37:05 -05:00
Thomas Harte
0971bbeebe Merge branch 'master' into AtariST 2019-11-05 23:24:26 -05:00
Thomas Harte
9292f66c2d
Merge pull request #669 from TomHarte/WOZDoc 
Update explanation of NIB processing.
 2019-11-05 23:21:25 -05:00
Thomas Harte
f3e2e88986 Update explanation of NIB processing. 2019-11-05 23:20:20 -05:00
Thomas Harte
6afefa107e Resolves unused variable warning. 2019-11-05 23:18:25 -05:00
Thomas Harte
0ce807805d Eliminates most masks, at least for now. 2019-11-05 23:17:59 -05:00
Thomas Harte
41f3c29e30 Attempts to switch to correct video state machine. 
Some glitches remain to be ironed out.
 2019-11-05 23:02:25 -05:00
Thomas Harte
6c75c60149 Merge branch 'master' into AtariST 2019-11-05 22:05:51 -05:00
Thomas Harte
015f2101f8
Merge pull request #668 from TomHarte/OverAllocation 
Resolves a potential out-of-bounds array access.
 2019-11-05 21:52:44 -05:00
Thomas Harte
35f1a7ab10 Resolves a potential out-of-bounds array access. 
Risk was: allocation exactly joins end of buffer. In which case the next get_data won't wrap the texture y coordinate since it won't spot an x overage.
 2019-11-05 21:47:40 -05:00
Thomas Harte
8df1eea955 Goes big on flushing. 2019-11-03 23:03:50 -05:00
Thomas Harte
eeafdf2c03 Slightly expands list of recognised Intelligent Keyboard commands. 2019-11-03 21:58:15 -05:00
Thomas Harte
befe2c2929 Adds floppy drive activity indicators. 2019-11-03 21:57:54 -05:00
Thomas Harte
46ec3510be Fixed: ST sectors are numbered from 1, not 0. 2019-11-03 21:18:29 -05:00
Thomas Harte
e9965c2738 Obeys stated memory size. 2019-11-03 21:18:17 -05:00
Thomas Harte
48b0d8c329 Adds bus req/ack to the DMA controller; hacks support into the ST. 2019-11-03 21:11:25 -05:00
Thomas Harte
07582cee4a BusGrant is a further signal I will need. 2019-11-03 21:10:42 -05:00
Thomas Harte
4dbd2a805a Nudges closer to DMA support. 2019-11-03 17:24:36 -05:00
Thomas Harte
20bf425f98 Drive select lines are active low. 2019-11-02 23:37:56 -04:00
Thomas Harte
0567410bcf Attempts to start getting the WDC working. 2019-11-02 23:26:42 -04:00
Thomas Harte
6d1e09ba55 Connects up the AY to floppy drive/side selection. 2019-11-02 23:04:08 -04:00
Thomas Harte
f40dbefa67 Implements most of keyboard input. 2019-11-02 22:30:02 -04:00
Thomas Harte
f93cdd21de Reverses bit order. 
So, for the first time: a green desktop.
 2019-11-02 21:53:04 -04:00
Thomas Harte
e1dc3b1915 Reverses mouse buttons. 
So I can now navigate the disk-less GEM desktop and click on things.
 2019-11-02 21:38:57 -04:00
Thomas Harte
cbf25a16dc Adds relative mouse motion input. 2019-11-02 21:25:45 -04:00
Thomas Harte
14e790746b Fixes return value when reading received data. 2019-11-02 21:25:00 -04:00
Thomas Harte
bf7e9cfd62 Pulls the intelligent keyboard into its own file. 2019-11-02 19:47:44 -04:00
Thomas Harte
a67e0014a4 Fixes video base address and mono/colour monitor value. 
Now I see a GEM desktop. In blue.
 2019-11-02 19:36:15 -04:00
Thomas Harte
c070f2100c Attempts to regularise data bus access. 2019-11-01 23:01:06 -04:00
Thomas Harte
75e34b4215 Reacts to no acknowledgement. 2019-10-31 21:00:05 -04:00
Thomas Harte
a5bbf54a27 Adds the ability for the 68901 to decline an interrupt acknowledgement. 2019-10-31 19:57:36 -04:00
Thomas Harte
5309ac7c30 Annotates JustInTimeActor as force inline. 2019-10-30 23:18:42 -04:00
Thomas Harte
731dc350b4 Adds sometime real-time clocking for DMA. 2019-10-30 22:59:32 -04:00
Thomas Harte
635e18a50d Ensures the MFP requests and receives real-time clocking when needed. 2019-10-30 22:42:06 -04:00
Thomas Harte
4857ceb3eb Attempts to get a bit more systematic. 
Spotted that interrupt_enable_ isn't being used properly while doing so, hopefully that's now correct.
 2019-10-29 23:16:08 -04:00
Thomas Harte
1c154131f9 Expands size of storage in Cycles/HalfCycles; adjusts widely to compensate. 2019-10-29 22:36:29 -04:00