Thomas Harte
cc7ff1ec9e
Corrects typo.
2019-11-09 14:59:35 -05:00
Thomas Harte
9d12ca691f
Makes meaning of 2048 here explicit.
2019-11-09 14:59:16 -05:00
Thomas Harte
db03b03276
Corrects [AND/OR/EOR].bw Dn, -(An) to decrement destination.
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It was previously doing a predecrement on the internal source address, which is unused. This fixes at least Dan Dare III and Silkworm.
2019-11-09 11:25:23 -05:00
Thomas Harte
45375fb5d0
Makes endian aware.
2019-11-09 09:48:59 -05:00
Thomas Harte
d2324e413d
Clarifies ownership of bpp-has-changed test.
2019-11-09 00:10:59 -05:00
Thomas Harte
e0c15f43bb
Avoids massive over-flushing of pixel buffers.
2019-11-09 00:05:02 -05:00
Thomas Harte
8b0d550b81
Attempts to move vertical sync out to cycle 30.
2019-11-08 22:18:47 -05:00
Thomas Harte
d1259f829e
Moves vertical state decisions back to cycle 502.
2019-11-08 21:42:05 -05:00
Thomas Harte
7caef46c05
Switches back to hsync for interrupts; corrects current address reads.
2019-11-08 21:25:28 -05:00
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
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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.
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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
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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.
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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.
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So, for the first time: a green desktop.
2019-11-02 21:53:04 -04:00
Thomas Harte
e1dc3b1915
Reverses mouse buttons.
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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