INT 7A - IBM 3270 Workstation Program API - TRANSLATE DATA

	AH = 09h
	BX = 8020h
	CX = 00FFh
	DX = ID of XLATE
	AL = service
	    01h translate from host characters to ASCII and vice versa
		(determined by control block byte 11)
	ES:DI -> control block
Return: ???