Specifications

95
SVGA-BIOS Calls (INT l0h)
The following sections describe the Standard-VGA-, Extended- and VESA-Super-
VGA BIOS calls.
Standard IBM VGA-compatible BIOS Calls (INT 10h)
These calls are IBM VGA-BIOS compatible functions.
The following lists all functions supported by the WD-BIOS with call and return
codes.
AH = 00h set video mode
AL=
Hex
Type Colors Text Resolution Font Clock
MHz
HSync
KHz
VSync
Hz
Min.
memo
Brffer
Start
Pages
0,1 A/N 16/256k 40x25 320x200 8x8 25.175 31.55 70.3 256K B8000 8
0,1* A/N 16/256k 40x25 320x350 8x14 25.175 31.55 70.3 256K B8000 8
0,1+ A/N 16/256k 40x25 360x400 9x16 28.322 31.34 69.8 256K B8000 8
2,3 A/N 16/256k 80x25 640x200 8x8 25.175 31.55 70.3 256K B8000 8
2,3* A/N 16/256k 80x25 640x350 8x14 25.175 31.55 70.3 256K B8000 8
2,3+ A/N 16/256k 80x25 720x400 9x16 28.322 31.34 69.8 256K B8000 8
4,5 A/N 4/256k 40x25 320x200 8x8 25.175 31.55 70.3 256K B8000 1
6 A/N 2/256k 80x25 640x200 8x8 25.175 31.55 70.3 256K B8000 1
7 A/N Mono 80x25 720x350 9x14 28.322 31.34 69.8 256K B8000 8
7+, A/N Mono 80x25 720x400 9x16 28.322 31.34 69.8 256K B8000 8
D APA 16/256k 40x25 320x200 8x8 25.175 31.55 70.3 256K A0000 8
E APA 16/256k 80x25 640x200 8x8 25.175 31.55 70.3 256K A0000 4
F APA Mono 80x25 640x350 8x14 25.175 31.55 70.3 256K A0000 2
10 APA 16/256k 80x25 640x350 8x14 25.175 31.55 70.3 256K A0000 2
11 APA 2/256k 80x30 640x480 8x16 25.175 31.55 60.1 256K A0000 1
12 APA 16/256k 80x30 640x480 8x16 25.175 31.55 60.1 256K A0000 1
13 APA 256/256k 40x25 320x200 8x8 25.175 31.55 70.3 256K A0000 1
AH = 01h set cursor type
CH=
CL=
Bit 0..4 start line or cursor
Bit 5..6 blinking attributes
Bit 0..4 end line of cursors
Table 30, Supported VGA Video Modes
6.2
6.2.1