10. A circuit characterization system for characterizing an integrated circuit design, the circuit characterization system comprising; a circuit description generator, the circuit description generator describing the integrated circuit design in a high-level language using a description of one or more leaf cells, wherein the description of the integrated circuit design includes specifying placement of the one or more leaf cells, and specifying connectivity between the one or more leaf cells, wherein the description of the integrated circuit design includes generating a circuit netlist file based on a critical path; a simulation instruction generator, the simulation-instruction generator generating instructions in the high-level language based on the circuit netlist file, wherein the instructions are generated for performing one or more simulations on the circuit netlist file; a circuit simulator, the circuit simulator performing one or more simulations on the circuit netlist file based on instructions defined in the high-level language, wherein the one or more simulations are performed to determine one or more values for one or more design parameters; and an output generator, the output generator providing the one or more values in a pre-defined output format based on the one or more simulations.
10. A circuit characterization system for characterizing an integrated circuit design, the circuit characterization system comprising; a circuit description generator, the circuit description generator describing the integrated circuit design in a high-level language using a description of one or more leaf cells, wherein the description of the integrated circuit design includes specifying placement of the one or more leaf cells, and specifying connectivity between the one or more leaf cells, wherein the description of the integrated circuit design includes generating a circuit netlist file based on a critical path; a simulation instruction generator, the simulation-instruction generator generating instructions in the high-level language based on the circuit netlist file, wherein the instructions are generated for performing one or more simulations on the circuit netlist file; a circuit simulator, the circuit simulator performing one or more simulations on the circuit netlist file based on instructions defined in the high-level language, wherein the one or more simulations are performed to determine one or more values for one or more design parameters; and an output generator, the output generator providing the one or more values in a pre-defined output format based on the one or more simulations. 11. The circuit characterization system as recited in claim 10 , wherein the high-level language is a Memory Description Language (MDL).