'uselib is persistent

As mentioned above, the appearance of a `uselib directive in the source code explicitly defines how instantiations that follow it are resolved. This may result in unexpected consequences. For example, consider the following compile command:

vlog -compile_uselibs dut.v srtr.v

Assume that dut.v contains a 'uselib directive. Since srtr.v is compiled after dut.v, the `uselib directive is still in effect. When srtr is loaded it is using the `uselib directive from dut.v to decide where to locate modules. If this is not what you intend, then you need to put an empty `uselib at the end of dut.v to "close" the previous `uselib statement.

Model Technology Incorporated Voice: (503) 641-1340 Fax: (503)526-5410 www.model.com sales@model.com