Output:
AL=pixel value read (attribute of pixel).
Note:
Interpretation of value returned depends
on graphics
mode in effect.
AH=0E Write TTY.
Input:
AL=character to write.
BL=color to draw character in graphics mode.
Output:
N o n e .
Note:
Carriage
return,
backspace,
line
feed,
bell are
commands,
not displayed characters.
Cursor is moved to
the
right after character is displayed, with wrap and
scroll at right margin of screen.
AH=0F Return video information.
Input:
N o n e .
Output:
AL=video mode in effect.
AH=text columns supported in current mode.
BH=active display page.
Note:
Bit
7 of AL is set to 1 if the regen buffer is not to be
cleared when the mdoe is set.
AH=10 Set EGA palette registers.
AL=0 set color for a single palette register.
Input:
BH=color to set palette register to.
BL=palette register to set color of.
Output:
N o n e .
AL=1 set color for overscan (border color) register.
Input:
BH=color to set overscan register to.
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Содержание Qtec VGA 1024
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Страница 9: ...INSTALLATION ...
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Страница 49: ...SOFTWARE DRIVERS ...
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Страница 69: ...FOR SOFTWARE DEVELOPERS ...
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Страница 105: ...HARDWARE REFERENCE ...
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