EgaMiscInfoRec
The bytes at 0040:0087 and 0040:0088 in the BIOS Data Area are bit flags
containing information pertaining to the status of the EGA^ and
VGA^. Most of this can be obtained via INT 10H 12H.
EgaMiscInfoRec
Ö7Â6Â5Â4Â3Â2Â1Â0·
º ³ram³0³a³0³m³cº 0040:0087 -- EGA Miscellaneous Information
ÓÒÁÄÁÄÁÄÁÒÁÄÁÒÁÒ½ bit
º È˼ º º ÈÍ> 0: 1=cursor emulation enabled; see INT 10H 12H BL=34H
º º º ÈÍÍÍ> 1: 1=EGA is attached to a Monochrome Display
º º ÈÍÍÍÍÍÍÍ> 3: 1=EGA is not active
º ÈÍÍÍÍÍÍÍÍÍÍÍÍ> 5-6: EGA total RAM (00=64K; 01=128K; 10=192K; 11=246K)
ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ> 7: high bit of video mode (1=screen is not cleared)
EgaMiscInfo2Rec
Ö7Â6Â5Â4Â3Â2Â1Â0·
ºfeature³ DIPs º 0040:0088 -- son of EGA Miscellaneous Information
ÓÄÁÄÁÄÁÄÁÄÁÄÁÄÁĽ bit
ÈÍÍËÍͼ ÈÍÍÍÍÍÊÍ> 0-3: DIP switch settings. See EGA Switch Settings
ÈÍÍÍÍÍÍÍÍÍÍÍÍ> 4-7: Feature bits
See Also: EGA Data Areas
EGA I/O Ports
EGA
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