RET              Procedure return                                   Extension

  RET [pop_value]

    The standard RET instruction generates code that terminates the
    current procedure appropriately. This includes generating epilog code
    for a procedure that uses a high-level language interfacing
    convention (i.e. terminating any ARG, LOCAL, and USES statements).

    For a procedure with NOLANGUAGE as its calling convention (assembler
    programs), the RET instruction will generate either a near return
    (2-byte displacement) or a far return (4-byte displacement) depending
    on how the procedure was declared.

    The epilog code is generated for each RET statement that appears
    inside a procedure. Outside of a procedure, RET will always generate
    a near return.

    The optional pop_value specifies a value to be added to the stack
    pointer, which is equivalent to popping the specified number of bytes
    from the top of the stack.

    The RETCODE statement will generate a return of an appropriate size
    without epilog code.