|
| Interrups | Categories | Contents |
AX = 1F01h ES:DI -> user buffer for return data (call AX=1F00h for size)
Return:
AL = 1Fh if function supported user buffer filled with DMQS data (see #00060)
Note: Not supported on the original IBM XGA, only on XGA-NI (non-interlaced) and later models.
See Also: AH=1Bh - AX=1F00h - AX=3000h
Format of XGA DMQS buffer: Offset Size Description (Table 00060) 00h WORD offset (in bytes) to DMQS data for next XGA instance 02h BYTE slot number 03h BYTE XGA implementation function level identifier 04h BYTE XGA implementation resolution level identifier 05h WORD vendor identifier - identifies card vendor 07h WORD vendor defined field 09h WORD XGA adapter I/O register base address 0Bh WORD XGA coprocessor register base address (paragraph--multiply by 10h to get physical address) 0Dh WORD 1 Megabyte system video memory aperture 0000h if not allocated (Multiply by 100000h to get physical address) 0Fh WORD 4 Megabyte system video memory aperture 0000h if not allocated (multiply by 100000h to get physical address) 11h WORD video memory base address (multiply by 100000h to get physical address) 13h WORD composite ID of the attached display 15h BYTE amount of video memory available, in multiples of 256K bytes 16h DWORD alternate XGA coprocessor register base address. 0 = none. 1Ah var DMQS Data for further XGA Instances (as above)
Note: "Instances" refers to the capability of having up to 8 XGA adapters in one computer.
See Also: #00061
|
| Interrups | Categories | Contents |
|
