PORTIBM PC Portable (uses same BIOS as XT) 46EF - ATI Mach64 - ???
Note:	the Mach64 BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware.  The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. reads the value of this port and multiplies it by 100
SeeAlso: PORTIBM PC Portable (uses same BIOS as XT) 66ECh"Mach64"