XGD: an automatic gate level schematic design system. 1

An automatic schematic design system called XGD which produces highly readable schematics at the gate level through a graphical, user-friendly, user-configurable design environment is described. The four major parts of the system are described. An overview of the algorithms for building the network graph and placing the gates is given. The pseudocode for the functions to read in the input file and build the graph are presented, along with the gate placement functions. The pseudocode of compaction functions implemented in the system is given. The system implementation and an example are discussed