PORTIBM PC Portable (uses same BIOS as XT) B2E8-B2EB - 8514/A and compatible - COLOR COMPARE
Notes:	supported by ATI Graphics Ultra
	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) B6E8h,PORTIBM PC Portable (uses same BIOS as XT) BAE8h,PORTIBM PC Portable (uses same BIOS as XT) BEE8h

B2E8w -W  drawing control: color compare
B2E8d RW  (S3) drawing control: color compare for 32bpp modes