Symbol Size Directive

To explicitly specify the size attribute of a symbol, use the .size directive. The .size directive has the following format:

.size name,size

Where:

name	Represents a symbol name.
size	Represents an absolute integer expression with no forward references.

To implicitly specify the default size attribute of a symbol, use a data allocation statement. The default symbol size is written to the symbol table. See the Data Allocation Statements section for more information.

Note:

When the object file format is COFF32 (Windows NT), the .size directive is only effective for common symbols.