+                Addition or Unary Plus                         MASM Operator

expression1 + expression2             (Addition)
  + expression                          (Unary Plus)

Adds 2 expressions together, producing a value, or makes an expression
a positive expression.

Notes:     The Addition operator ('+') can be used to add an
integer number to a relocatable memory operand.  Only
one expression can not be relocatable memory operand.
Both expressions can be integer values.

The Unary Plus has a higher precedence then the Addition
operator.  See 'Operator Precedence' for the order of
operator precedence.

See also: *
See also: -
See also: /
See also: MOD
See also: .

+ Addition or Unary Plus