checking package dependencies
compiling LogZero.bsv
code generation for sysLogZero starts
Error: "LogZero.bsv", line 5, column 16: (G0085)
  A logarithm operator was applied to a non-positive number during
  elaboration.
  During elaboration of the body of rule `test' at "LogZero.bsv", line 3,
  column 9.
  During elaboration of `sysLogZero' at "LogZero.bsv", line 2, column 8.