syn.directive.top - 2023.2 English - UG1393

Description

Attaches a name to a function, which can then be used by the set_top command to set the named function as the top. This is typically used to synthesize member functions of a class in C++.

Syntax

syn.directive.top=[OPTIONS] <location>

• <location> is the function to be renamed.

Options

name=<string>

Specifies the name of the function to be used by the syn.top command as described in HLS General Options.

Examples

Function foo_long_name is renamed to DESIGN_TOP, which is then specified as the top-level. If the pragma is placed in the code, the set_top command must still be issued in the top-level specified in the GUI project settings.

syn.directive.top=name=DESIGN_TOP foo_long_name

Followed by the syn.top=DESIGN_TOP command.

See Also

• syn.top in HLS General Options