VeriSilicon GSMC 0.18um Synchronous Programmable Low Power Via1 ROM compiler optimized for Grace Semiconductor Manufacturing Corporation (GSMC) 0.18um Logic/Analog 1P6M Industry Baseline Generic (IBG) 1.8/3.3V process can flexibly generate memory blocks via a friendly GUI or shell commands. The compiler supports a comprehensive range of word length and bit length. While satisfying Low Power and speed requirements, it has been optimized for area efficiency. VeriSilicon GSMC 0.18um Synchronous Low Power Via1 ROM compiler uses three metal layers within the blocks and supports metal 4, 5 or 6 as the top metal. Dummy bit cells are designed in with the intention to enhance reliability.