Specifications

104
Bit Description
0,1 (reserved)
2 0:
1:
CRT display
LCD display
3 0:
1:
autocentering on
artocentering off
5,4 00:
01:
10:
11:
normal graphics and inverted text
normal graphics and mormal text
inverted graphics and text
(reserved)
6 0:
1:
vertical expansion on
vertical expansion off
9,8 00:
01:
10:
11:
800x600 pixel at 56 Hz
800x600 Pixel at 60 Hz
800x600 pixel at 72 Hz
800x600 pixel (16 colors) at 72 Hz and
800x600 pixel (256 colors) at 60 Hz
11,10 00:
01:
1024x768 pixel (16 colors) interlaced
1024x768 pixel (16 colors) at 60 Hz
13,12 00:
01:
1024x768 pixel (256 colors) interlaced
1024x768 pixel (256 colors) at 60 Hz
14 0:
1:
no simultaneous display on CRT / LCD
simultaneous display on CRT and LCD
15 (reserved)
Table 30, INT 10h AX= 7F7Fh / BX = 4200h, Return Extended Status Information
AX = 7F7Fh BX = 4104h toggle display
Toggle between LCD, CRT or simultaneous display
on LC and CRT. For high resolution video modes
which are not sup ported by the LC-display. simul-
aneous display cannot be selected.
AX = 7F7Fh BX = 4105h enable CRT-monitor
AX = 7F7Fh BX = 4106h enable LCD-monitor
AX = 7F7Fh BX = 4107h switch between LCD- and CRT-monitor
AX = 7F7Fh BX = 4108h toggle simultaneous/non-simultaneous display
AX = 7F7Fh BX = 410Ah switch between normal/inverted text display
AX = 7F7Fh BX = 410Bh switch between normal/inverted graphics display
AX = 7F7Fh BX = 410Dh switch to simultaneous display
AX = 7F7Fh BX = 4200h return extended status information
BX= status information