* hp9845: fixed handling of optional ROMs (nw)
* z80sio: massive enhancement to Z80 SIO driven by HP98046 test sw
* hp9845: implemented the HP98046 serial I/O module
* Bally pinball by35: Move pinball sound boards to a new file.
* Bally pinball by35: Move as8888 code to a proper device.
* Bally pinball by35: Add Cheap Squeak sound board.
* m6801: Fix bug where irq is never triggered.
* Bally pinball by35: Mark the AS888 games as non-skeleton.
* Bally pinball by35: Refactor state classes.
* Add support for pcnfrk2m - Percussion Freaks 2nd Mix (GE912 VER. KAA)
* WIP audio for k573dio
* WIP
* Move 3rd party library to 3rdparty folder
* Use MAME's BIT and bitswap
* Fix regression which caused songs to stutter/lag when they should have been read completely in one shot
* Replace gain_to_db switch with equivalent math
* smartfp generate an interrupt, add a palette (nw)
* video registers look a lot like the spg220 hw here (nw)
* getting ready to split into video (nw)
* code shuffle (nw)
* shuffle (nw)
* (nw)
* (nw)
* (nw)
-newport: Unified command handling, should function better and faster as a result. [Ryan Holtz]
-hpc3: Added intstat register and DAC volume controls. [Ryan Holtz]
* unsp refactoring / tv game work (nw)
* unsp refactoring / tv game work (nw)
* srcclean (nw)
* more ops (nw)
* (nw)
* (nw)
* guesses (nw)
* more guesses (nw)
* (nw)
Added IBGR444 format to palette_device.
Minor consistency fix to laserbat.cpp. (nw).
New machines marked NOT_WORKING
-------------------------------
Star Rider
* Start fixing OS9 disk handling
* Got it working, now need to refine and test
* Almost complete. Doing more testing...
* Tested aginst a varient of sotware. Solved bug. Cleaned up tabs.
* Turned on sector interleaving in OS9_DSK and retested.
On Linux, enable Xinput support by default. The Xinput lightgun driver is the
only reliable+accurate method to use lightguns on Linux, we should enable this
by default to reduce the friction for Linux Lightgun users. This should have no
effect on users of Windows/Mac etc.