DUP              Duplicate Occurrences                          MASM Operator

count DUP (initialvalue,,,)

Used with DB, DW, DD, DQ, and DT to specify multiple instances of
initial values.

Notes:     InitialValue can be one or more items, each separated by
a comma.  Each initialValue can be any expression that
evaluates into an integer value, a character constant,
or another DUP operator.  Note that initialValue MUST be
enclosed within parenthesis.

Count is the number of times to duplicate the initial values.

                                 Example                                  

DB   200  DUP (1)           ;Define 200 bytes initialized to 1
DB   50   DUP (1,0)         ;Define 100 bytes of the pattern 1,0,1,0,etc.
DB   2    DUP (3 DUP (1))   ;Define 6 bytes initialized to 1

See also: DB
See also: DW
See also: DD
See also: DQ
See also: DT

DUP Duplicate Occurrences