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* devices\video: simplify handlers for a few devices (nw) Ivan Vangelista2020-03-061-8/+8
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* bt459: 4 bits per pixel, not 3 (nw) Patrick Mackinlay2018-09-241-2/+2
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* bt459: add contrast control (nw) Patrick Mackinlay2018-08-211-4/+14
| | | | Use a simplistic multiply to simulate contrast control. InterPro systems write to a "virtual contrast DAC" register/latch of some kind, which presumably adjusts the reference voltage produced by the Bt438 before it enters the RAMDAC; this approximation is very crude, however it's simple and produces a satisfactory visual result.
* as if millions of this pointers suddenly cried out in terror, and were ↵ Vas Crabb2018-06-081-4/+4
| | | | | | | suddenly silenced * streamline templates in addrmap.h * get rid of overloads on read/write member names - this will become even more important in the near future
* bt45x: new devices (#3536) Patrick Mackinlay2018-05-081-4/+6
| | | | | | | | * bt45x: new devices Basic implementation of various Brooktree RAMDAC devices. Two of these (bt457, bt458) are used by InterPro graphics boards currently under development, the others are unused/untested at this point. * bt45x: tweak descriptions (nw)
* maps: Finish devices/video (nw) Olivier Galibert2018-04-201-6/+7
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* Grammar police (nw) Olivier Galibert2018-02-241-5/+5
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* API change: Memory maps are now methods of the owner class [O. Galibert] Olivier Galibert2018-02-121-1/+1
| | | | | Also, a lot more freedom happened, that's going to be more visible soon.
* bt459: various improvements Patrick Mackinlay2017-11-161-95/+156
| | | | | | * support for blinking (pixel planes and cursors) * fixes for dual-cursor and X Window mode * corrected screen output alignment
* bt459: more debug side effects (#2743) (nw) Patrick Mackinlay2017-10-231-4/+9
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* bt459: debug side effects and const (nw) Patrick Mackinlay2017-10-231-13/+15
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* bt459: device address map (nw) Patrick Mackinlay2017-10-231-95/+123
| | | | | * added device address map, simplified switch * comments and formatting
* bt459: new device Patrick Mackinlay2017-10-191-0/+646
Used in InterPro graphics boards.