PORTIBM PC Portable (uses same BIOS as XT) A2E8-A2EB - 8514/A and compatible - BACKGROUND COLOR 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) A6E8h A2E8w -W drawing control: background color A2E8d RW (S3) drawing control: 32bpp background color