I am trying to synthesize FPU of OpenSparc T1 using library of 90nm. I have downloaded the FPU's source code and the labs' documentation. In the labs, is mentioned that the synthesized code can meet the constraints clock=2ns and clock=1ns, using the labs' scripts. Although, I follow the instructions and the scripts, I cannot meet these constraints. The best result was that of clock=2ns but with slack (VIOLATED) =-1,07. Could somebody give me the right scripts to meet the constraints of 2ns and 1ns? Which version of lib 90nm is used?