| Offset |
Size |
Description |
|
00h
|
WORD
|
mode attributes (see #00080) |
|
02h
|
BYTE
|
window attributes, window A (see #00081) |
|
03h
|
BYTE
|
window attributes, window B (see #00081) |
|
04h
|
WORD
|
window granularity in KB |
|
06h
|
WORD
|
window size in KB |
|
08h
|
WORD
|
start segment of window A (0000h if not supported) |
|
0Ah
|
WORD
|
start segment of window B (0000h if not supported) |
|
0Ch
|
DWORD
|
 FAR window
positioning function (equivalent to AX=4F05h) |
|
10h
|
WORD
|
bytes per scan line |
|
remainder is optional for VESA modes in v1.0/1.1, needed for OEM modes
|
|
12h
|
WORD
|
width in pixels (graphics) or characters (text) |
|
14h
|
WORD
|
height in pixels (graphics) or characters (text) |
|
16h
|
BYTE
|
width of character cell in pixels |
|
17h
|
BYTE
|
height of character cell in pixels |
|
18h
|
BYTE
|
number of memory planes |
|
19h
|
BYTE
|
number of bits per pixel |
|
1Ah
|
BYTE
|
number of banks |
|
1Bh
|
BYTE
|
memory model type (see #00082) |
|
1Ch
|
BYTE
|
size of bank in KB |
|
1Dh
|
BYTE
|
number of image pages (less one) that will fit in video RAM |
|
1Eh
|
BYTE
|
(VBE 1.0-2.0) reserved (00h) |
| (VBE 3.0) reserved (01h) |
|
VBE v1.2+
|
|
1Fh
|
BYTE
|
red mask size |
|
20h
|
BYTE
|
red field position |
|
21h
|
BYTE
|
green mask size |
|
22h
|
BYTE
|
green field size |
|
23h
|
BYTE
|
blue mask size |
|
24h
|
BYTE
|
blue field size |
|
25h
|
BYTE
|
reserved mask size |
|
26h
|
BYTE
|
reserved mask position |
|
27h
|
BYTE
|
direct color mode info
| bit 0 |
color ramp is programmable |
| bit 1 |
bytes in reserved field may be used by application |
|
|
VBE v2.0+
|
|
28h
|
DWORD
|
physical address of linear video buffer |
|
2Ch
|
DWORD
|
pointer to start of offscreen memory |
|
30h
|
WORD
|
KB of offscreen memory |
|
VBE v3.0
|
|
32h
|
WORD
|
bytes per scan line in linear modes |
|
34h
|
BYTE
|
number of images (less one) for banked video modes |
|
35h
|
BYTE
|
number of images (less one) for linear video modes |
|
36h
|
BYTE
|
linear modes: size of direct color red mask (in bits) |
|
37h
|
BYTE
|
linear modes: bit position of red mask LSB (e.g. shift
count) |
|
38h
|
BYTE
|
linear modes: size of direct color green mask (in bits) |
|
39h
|
BYTE
|
linear modes: bit position of green mask LSB (e.g. shift
count) |
|
3Ah
|
BYTE
|
linear modes: size of direct color blue mask (in bits) |
|
3Bh
|
BYTE
|
linear modes: bit position of blue mask LSB (e.g. shift
count) |
|
3Ch
|
BYTE
|
linear modes: size of direct color reserved mask (in bits) |
|
3Dh
|
BYTE
|
linear modes: bit position of reserved mask LSB |
|
3Eh
|
DWORD
|
maximum pixel clock for graphics video mode, in Hz |
|
42h
|
190 BYTEs
|
reserved (0) |