Simulator state variables

Unlike other variables that must be explicitly set, simulator state variables return a value relative to the current simulation. Simulator state variables can be useful in commands, especially when used within ModelSim DO files (macros).

Variable	Result
argc	returns the total number of parameters passed to the current macro
architecture	returns the name of the top-level architecture currently being simulated; for a configuration or Verilog module, this variable returns an empty string
configuration	returns the name of the top-level configuration currently being simulated; returns an empty string if no configuration
delta	returns the number of the current simulator iteration
entity	returns the name of the top-level VHDL entity or Verilog module currently being simulated
library	returns the library name for the current region
MacroNestingLevel	returns the current depth of macro call nesting
n	represents a macro parameter, where n can be an integer in the range 1-9
Now	returns the current simulation time expressed in the current time resolution (e.g., 1000 ns)
now	returns the current simulation time as an absolute number of time steps (e.g., 1000)
resolution	returns the current simulation time resolution

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