Abstract
Ascarid is a VLSI design environment used by module generators which can better exploit the user experience to achieve a more efficient layout design. A set of placing and routing parameters, such as the conditional imposition of a dogleg [1] for a tighter design, can be optimized by the user. It accepts as input a C-like description of the circuit to be designed and provides as an output, the layout, netlist and footprint of the circuit in commonly used formats and a statistics file. It is independent of technology and design rule and accepts any standard cell library the user may provide. Ascarid is designed to accept a hierarchical description of the circuit, the lowest level component of the system being a cell of a standard cell library. From these, composite cells may be produced, which may be stored in a user library. It is written in C and can even run on a Personal Computer.
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