.TITLE MMT5.. .IDENT /MMT5../ .MCALL ALUN$S ; MT$OPEN:: ;THIS ROUTINE OPENS A MAGNETIC TAPE CHANNEL ; ; ENTRY CONDITIONS ; NONE ; ; EXIT CONDITIONS ; STATUS = SUCCESS OR ERROR ; ALUN$S MT$LUN,#"MM,MT$UNIT MOV $DSW,MT$DSW ;SAVE DIRECTIVE STATUS WORD RETURN ;BACK TO CALLING PROGRAM ; .END ; ;