Int 10/AX=4E00h

lup.gif ldown.gif Interrups Categories Contents

rbline.gif

VESA XGA BIOS Extensions - GET XGA ENVIRONMENT INFORMATION

AX = 4E00h
ES:DI -> 256-byte buffer for XGA information (see #00069)

Return:
AL = 4Eh if function supported AH = status 00h successful else error code

Desc: Determine whether VESA XGA extensions are present and the capabilities supported by the display adapter

See Also: AX=4E01h - AX=4E02h - AX=4F00h

Index:
Installation check;VESA XGA

Format of XGA information buffer: Offset Size Description (Table 00069) 00h 4 BYTEs signature ("VESA") 04h WORD VESA version number 06h DWORD pointer to ASCIZ OEM string 0Ah DWORD environment flags (see #00070) 0Eh WORD number of XGA adapters installed (other VESA XGA functions require a handle indicating which adapter to use) 10h 240 BYTEs reserved

Bitfields for XGA environment flags: Bit(s) Description (Table 00070) 0-1 system bus (00 = MCA, 01 = ISA, 10 = EISA) 2 bus mastering available 3-31 reserved

Category: Video - Int 10h - V

rbline.gif

lup.gif ldown.gif Interrups Categories Contents