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path: root/src/devices/machine/am25s55x.cpp
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* emu/devcb.h: Eliminated the need to call resolve() on callbacks. (#11333) Vas Crabb2023-06-171-2/+0
| | | | | | | | | | | | Read callbacks now need a default return value supplied at construction. Replaced isnull() with isunset() which tells you if the callback wasn't configured rather than whether it isn't safe to call. Enabled validation of device callbacks (it seems it was disabled at some point, probably accidentally). Device callbacks and object finders now implement the same interface for resolution.
* -74381: Added untested 74S381 ALU / Function Generator device. [Ryan Holtz] MooglyGuy2019-06-181-1/+1
| | | | | | -dpb_brushproc: Added PROM signal lookups, nw -am25s55x: Fixed some incorrect comments, nw
* -dpb_brushproc: Added skeleton device for DPB-7000 Brush Processor Card. ↵ MooglyGuy2019-06-181-0/+204
[Ryan Holtz] -am25s55x: Initial device implementation for Am25S557 and 25S558 Combinatorial Multiplier chips. [Ryan Holtz] -dpb_combiner: Fixed validation, nw -dpb7000: Added devices for new Brush Processor Card skeleton, nw