INT 10 - Everex Extended Video BIOS - RETURN EMULATION STATUS
AX = 7000h
BX = 0000h
Return: AL = 70h if Trident-based Everex card
CL = monitor type
00h mono
01h CGA
02h EGA
03h digital multifrequency
04h IBM PS/2
05h IBM 8514
06h SuperVGA
07h analog multifrequency
08h super multifrequency
CH = feature bits
bits 7,6: 00 = 256K memory
01 = 512K memory
10 = 1024K
11 = 2048K memory
bit 5:    special oscillator present
bit 4:    VGA protect enabled
bit 0:    6845 emulation
DX = video board info
bits 4-15: board ID model
bits 0-3:  board ID revision
DI = BCD BIOS version number
Note:   board models for Trident-based Everex cards:
236h Ultragraphics II
620h Vision VGA
673h EVGA
678h Viewpoint


107000BX0000 - Everex Extended Video BIOS - RETURN EMULATION STATUS