Designs do not live in isolation. The User Guide dedicates two massive chapters to I/O constraints, which are historically the source of 70% of tapeout failures.
The compiler roared to life. It began tearing down logic gates and rebuilding them in more efficient patterns. It moved registers across combinational clouds like a grandmaster shifting chess pieces. It was a metamorphosis. The sprawling, messy logic condensed into a sleek, crystalline structure. The Final Edge Synopsys Timing Constraints And Optimization User Guide
One cycle, the Great Central Processor began to stutter. The city’s hover-rails lagged; the holographic advertisements flickered into static. A "Hold Violation" had infected the core—a data pulse arriving too early, like a heartbeat crashing into the one before it. Designs do not live in isolation