INT 62 u - FGDRIVER v4.02 - "FG_SAVE" - COPY REGION FROM VISIBLE TO HIDDEN PAGE
	AX = 00A2h
	BX = left edge column
	CX = right edge column
	DX = top edge row
	SI = bottom edge row
Notes:	the FGDRIVER functions are rearranged with each major release, but
	  their parameters do not change (see #03474 at AX=0000h)
	The left and right edges are adjusted to byte boundaries if necessary
SeeAlso: AX=009Eh,AX=00C6h