EXIST is an integrated environment for exploratory VLSI nrchitectural design implemented in the Smalltalk-80' environment. It consists of a functional simulator (INSIST), a floorplanner (FLOORIST) and a database (DATABIST). EXIST contains several unique features including: editing while in simulation, manual and automated hierarchical floorplan optimieation, and user-friendly interfnce based on the M V C paradigm of Smalltalk. These features make EXIST a promising environment for exploration of slternative VLSI architectures, such M RISC controllers.
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