PORTIBM PC Portable (uses same BIOS as XT) 82E8-82E9 - 8514/A and compatible - CURRENT Y POSITION
Notes:	supported by ATI Mach8 and Mach32 chipsets
	supported by S3 chipsets when PORTIBM PC Portable (uses same BIOS as XT) 03D4h register 40h bit 0 is set
SeeAlso: PORTIBM PC Portable (uses same BIOS as XT) 86E8h,PORTIBM PC Portable (uses same BIOS as XT) 82EAh

82E8w -W  drawing control: current Y position