lxcatt

	LXCATT(isize.i2.r [,irot.i2.r] [,iadd.i2.r] [,irev.i2.r])

	This routine will set the character attributes to be used by future
	calls to LXTEXT. ISIZE is the character multiplication factor for
	5 by 7 characters. ISIZE=1 produces 5 by 7 characters in a 7 by 11
	pixel block, ISIZE=2 produces 10 by 14 characters in a 14 by 22 pixel
	block, etc.

	IROT	character rotation code:
		= 0	left to right (default)
		= 1	bottom to top
		= 2	top to bottom
		= 3	right to left (upside down)

	IADD 	= 0	Erasive write (default)
		= 1	Additive write

	IREV 	= 0	Normal video  (default)
		= 1	Reverse video