Setup

The setup file .synopsys_vss.setup stays unchanged except for the definition of the TIMEBASE variable as shown below.

TIMEBASE                = ps
TIME_RES_FACTOR         = 1
NO_HAZARD_MESG          = TRUE

WORK            > DEFAULT
DEFAULT         : ./WORK

CFLAGS  = -Dhp700Architecture
LDFLAGS = /bin/ld -b -o %s

The post place-and-route simulation is more precise because all delays are calculation to the nearest pico-second. For this reason, the TIMEBASE variable has to be changed to pico-seconds as well. This also means that the post place-and-route simulation will take longer to compile since it has to calculate 1000 points for every point calculated during the RTL simulation.