www.delorie.com/djgpp/doc/rbinter/1.html   search  
Table 189

Bitfields for status register information:
Bit(s)	Description	)
 0	display enable
	0 = display enabled
	1 = vertical or horizontal retrace in progress
 1	light pen flip flop set
 2	light pen switch activated
 3	vertical sync
 4	monitor resolution
	0 = high resolution (>200 lines)
	1 = low resolution (<=200 lines)
 5	display type (0 = color, 1 = monochrome)
 6,7	diagnostic bits
Note:	bits 0-3 are the same as the EGA/VGA status register bits 0-3

  webmaster   donations   bookstore     delorie software   privacy  
  Copyright 2000   by Ralf Brown     Updated Jul 2000