$SAVE NOLIST
/*****************************************************************************
 * IO.LIT:	Definition of parameter codes frequently used in BIOS and EIOS
 *			system calls.
 *****************************************************************************/

DECLARE

                /*    used on the mode parameter of open, and the mode field of
                      connection$status */

    READ$ONLY               LITERALLY '1',
    WRITE$ONLY              LITERALLY '2',
    READ$WRITE              LITERALLY '3',
    READ$ONLY_NO$SHARE      LITERALLY '4',
    WRITE$ONLY_NO$SHARE     LITERALLY '5',
    READ$WRITE_NO$SHARE     LITERALLY '6',
    

                /*    used on the share parameter of open, and the share field
                      of connection$status and file$status */

    NO$SHARE                LITERALLY '0',
    SHARE$READ              LITERALLY '1',
    SHARE$WRITE             LITERALLY '2',
    SHARE$ALL               LITERALLY '3',


                /* used with seek */

    SEEK$BACKWARD           LITERALLY '1',
    SEEK$ABSOLUTE           LITERALLY '2',
    SEEK$FORWARD            LITERALLY '3',
    SEEK$END$OF$FILE        LITERALLY '4',


                /* used in the access fields of get file$status */

    NO$ACCESS               LITERALLY '00h',
    DELETE$ACCESS$BIT       LITERALLY '01h',
    READ$ACCESS$BIT         LITERALLY '02h',
    ADD$ACCESS$BIT          LITERALLY '04h',
    UPDATE$ACCESS$BIT       LITERALLY '08h',
    ALL$ACCESS              LITERALLY '0Fh',


                /*    used in the file driver parameter of attach$device and
                      the file driver field of get$connection$status */

    SOA$PHYSICAL$FILE       LITERALLY '1',
    SOA$STREAM$FILE         LITERALLY '2',
    SOA$NAMED$FILE          LITERALLY '4',
	SOA$REMOTE$FILE	        LITERALLY '5',


                /* used in the file$drivers field of file$status */

    FD$PHYSICAL$BIT         LITERALLY '01H',
    FD$STREAM$BIT           LITERALLY '02H',
    FD$NAMED$BIT            LITERALLY '08H',
    FD$REMOTE$BIT           LITERALLY '10H',


                        /* function codes for SPECIAL primitives */

    SPECIAL$FORMAT          LITERALLY '0',
    SPECIAL$QUERY           LITERALLY '0',
    SPECIAL$SATISFY         LITERALLY '1',
    SPECIAL$NOTIFY          LITERALLY '2',
    SPECIAL$GET$DEVICE$DATA	LITERALLY '3',
    SPECIAL$GET$TERM$DATA	LITERALLY '4',
    SPECIAL$SET$TERM$DATA	LITERALLY '5',
    SPECIAL$SET$SIGNAL		LITERALLY '6',
    SPECIAL$REWIND$TAPE		LITERALLY '7',
    SPECIAL$READ$FILE$MARK	LITERALLY '8',
    SPECIAL$WRITE$FILE$MARK	LITERALLY '9',
    SPECIAL$RETENSION$TAPE	LITERALLY '10',
    SPECIAL$SET$CHAR$FONT	LITERALLY '11',
    SPECIAL$SET$BAD$INFO    LITERALLY '12',
    SPECIAL$GET$BAD$INFO    LITERALLY '13',
    SPECIAL$GET$TERM$STATUS LITERALLY '16',
    SPECIAL$CANCEL$TERM$IO  LITERALLY '17',
    SPECIAL$RESUME$TERM$IO  LITERALLY '18';


$RESTORE