PORTIBM PC Portable (uses same BIOS as XT) 1020 - Wang PCIBM PC - SCREEN 2 CONFIGURATION PORTIBM PC Portable (uses same BIOS as XT)
SeeAlso: PORTIBM PC Portable (uses same BIOS as XT) 1010h,PORTIBM PC Portable (uses same BIOS as XT) 1030h,PORTIBM PC Portable (uses same BIOS as XT) 1040h,MEM F000h:0000h"Wang"

1020  ?W  write 01h to map screen buffer 2 into memory at F000h:0000h
	  write 00h to unmap the screen buffer