PORTIBM PC Portable (uses same BIOS as XT) 46E8 - VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers. - VIDEO ADAPTER ENABLE
Note:	IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. uses this port for adapter-card VGAs only, and PORTIBM PC Portable (uses same BIOS as XT) 03C3h for
	  motherboard VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers. only (see 03C3 for details)
SeeAlso: PORTIBM PC Portable (uses same BIOS as XT) 03C3h,PORTIBM PC Portable (uses same BIOS as XT) 46E8h"8514/A",#P0748

46E8  rW  Misc. control: enable flags / select ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. page (8514/A) (see #P1020)


Bitfields for VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers. miscellaneous control register:
Bit(s)	Description	(Table P1020)
 7-5	unused or vendor-specific
 4	setup for POS registers (MCA)
 3	enable video I/O ports and video buffer
 2-0	unused or vendor-specific
                                                                                

PORTIBM PC Portable (uses same BIOS as XT) 46E8 - 8514/A and compatible (e.g. ATI Graphics Ultra) - ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. PAGE SELECT
Note:	this register is readable on the C&T 82c480 chipset
SeeAlso: PORTIBM PC Portable (uses same BIOS as XT) 46E8h"VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers."

46E8w -W  ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. page select (see #P1021)


Bitfields for 8514/A ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. page select register:
Bit(s)	Description	(Table P1021)
 2-0	select which 4K page of 32K ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. to map at segment C700h
 3	enable VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers.
 4	select VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers. setup mode
 15-5	reserved (0)