INT 10 - DOS/V - READ/WRITE DOUBLE-BYTE CHARACTER SET CHARACTERS/ATTRIBUTES

	AH = 13h
	AL = function
	    10h read characters and standard attributes
	    11h read characters and extended attributes
	    12h write characters and standard attributes
	    13h write characters and extended attributes
	BH = 00h
	CX = number of characters to transfer
	DH,DL = row,column at which to start transfer
	ES:BP -> buffer for/containing characters and attributes (see #00036)
Return: ES:BP buffer filled if reading
Program: DOS/V is a Japanese-language version of MS-DOS which can run on
	  standard (non-Japanese) ATs and compatible equipped with a VGA or
	  newer video adapter
Notes:	subfunctions 11h and 13h are only valid when DOS/V is using video
	  mode 73h
	the cursor position is not changed by these functions
	extended attributes consist of three bytes; the first is the standard
	  character attribute byte, the second is as described below, and the
	  third is always zero in current versions
SeeAlso: AH=00h,AH=13h"VIDEO"