* ms32.cpp: fix/document memory map
* ms32.cpp: preliminary CRTC hookup
* ms32.cpp: implement sprite direction bit, nuke per-game kludges
* Move note where it belongs (nw)
* ms32.cpp, bnstars.cpp: correct sprite RAM ranges
* tetrisp2.cpp: kill some legacy screen params, need those anyway
* Improve notes (nw)
* ms32.cpp: move CRTC to a new sysctrl device
Also added a bare-bones Python script for generating new device file
defs to src/mame/etc
* gen_python_def.py: address issues, misc improvements
* Kill device_memory_interface in favour of direct address_map, QA always broken flip_screen in flags
* ms32.cpp: reinstated flip screen thru callback
* ms32.cpp: Make mixing to honor cliprects instead of erratic screen.width / height call
* Need a safeguard somehow, and a symbols build doesn't help here lalala
* Fix notes, cannot repro the bug, next
* Move irq assert/clear lines to device, add preliminary prg timer, make 30 Hz irq to behave like one.
(Note: very untested, feedback is appreciated)
* Send a prg timer ack if irq is disabled
* Misc cleanups
* Nuke emu_timers in favour of configure_scanline, preliminary bnstars1 hookup
* No magic number please
* Add sysctrl to tetrisp2.cpp, move rockms stuff into its own state machine, misc
* Kill off 30 Hz refresh rate hack in stepstag/vjdash sub screens
* Flag all those xtals as unknown
* Move has_zoom/has_yuv in ms32_sprite init constructor, fix dummy config bug with stepstag right screen update
* jalcrpt.h doesn't belong to tetrisp2.cpp, errata on sysctrl reset line
* Fix build
* Left-over
* Fix bool comparison to itself (blame JS habits), nuke bnstars1 mahjong
switch case altogether.
* Notes
* Fix bnstars1 crash
* update_color fn doesn't work without a memory_share_creator, documentation
* Translate clamp_to_12bits_neg to a constexpr method
* Fix crashing in main ms32 driver, except it now has very broken priority for seemingly no reason
* Fix nasty spriteram buffer RAM allocation bug
* Make objectram_size to be calculated at init time
* First (naive) pass in moving common interface to a ms32_base_state
Move m_irqreg save state from video_start to machine_start fn;
Fix embarassing palette overflow bug in ms32.cpp;
Add bitswap for bnstars1 mahjong panel;
.bytes() -> .length() for objectram_size;
* bnstars: template video handlers
* bnstars: fix config, split sprite chips/gfxdecode/palette into two, fix palette ranges
* ms32.cpp: implement proper irq acknowledge lines
* Add config setter in sysctrl for inverted vblank/field lines, make tp2ms32 and wpksocv2 happy
* Move f1superb to own state
* MS32 merge sound maps
* Remove TIMER_DEVICE_CALLBACK_MEMBER in favour of emu_timer
