.                Structure Field-Name Operator                  MASM Operator

structvariable.field

Used to access a field within a structure.

Notes:     Structvariable is a variable previously declared as a
structure and field is a field within that structure.

The effective address generated when using this operator
('.') is the sum of the offset of structvariable and the
offset of field within the structure.  This address is
relative to the group or segment in which structvariable
is defined.

This operator is equivalent to using the addition
operator ('+') in indexed or base operands.

See also: STRUC
See also: +

. Structure Field-Name Operator