I just saw this in the 144 u7 release notes and was wondering if it would help make emulation of mame games more accurate from a refresh perspective?
Major overhaul of VGA memory handlers, added CGA, monochrome emulation and
fixed text banking while at it [Angelo Salese]
VGA: Fixed Double Scan / Maximum Scan Lines condition, and removed a
bunch of kludges [Angelo Salese]
CGA: fixed display disable read flag [Angelo Salese]
VGA: first attempt at adding proper refresh rates [Angelo Salese]
Major overhaul of VGA memory handlers, added CGA, monochrome emulation and
fixed text banking while at it [Angelo Salese]