INT 10h, 15h (21) Return Physical Display Characteristics Convertible
Returns the alternate display adapter type and a table describing the
characteristics of the current display. This service is available only
for the PC Convertible.
On entry: AH 15h
Returns: AX Alternate display adapter type
00h - No alternate adapter
5140h - LCD
5153h - CGA type display
5151h - Monochrome type display
ES:DI Pointer to 7-word Current display adapter
table (See below)
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Notes: The format of the display adapter table is as
follows:
Word 1 - Display model number
Word 2 - Vertical PELs per meter
Word 3 - Horizontal PELs per meter
Word 4 - Total number of vertical PELs
Word 5 - Total number of horizontal PELs
Word 6 - Height of PEL in micrometers (vertical
direction)
Word 7 - Width of PEL in micrometers (horizontal
direction)
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PC Convertible Display Adapter Tables
Word Monochrome CGA LCD (CGA) LCD (Monochrome)
1 5151h 5153h 5140h 5140h
2 0 0498h 08E1h 0
3 0 0A15h 0987h 0
4 0 00C8h 00C8h 0
5 0 0280h 0280h 0
6 0 0352h 0172h 0
7 0 0184h 0172h 0
Note that the PC Convertible Technical Reference Manual incorrectly
documents words 6 and 7 for an LCD acting as a CGA. The correct values
are listed above.
Seealso:
This page last updated on Fri Nov 30 10:49:50 MSK 2001
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