Synopsys Nanosim is a fast-Spice simulator. It provides near-
Spice accuracy at much faster simulation speed. It can be used
for full-chip simulation or for functional verification of
custom-digital blocks. It also includes dynamic power analysis,
a feature previously provided by Synopsys PowerMill. To the best
of my knowledge, Nanosim replaces both PowerMill and TimeMill
This tutorial will demonstrate simulation, functional
verification and dynamic power analysis. The example circuit is
a simple 8-bit adder. The following files are part of this
tutorial: Digital Input Vectors Nanosim uses the ".vec" file
format to provide digital input vectors. This method is far
superior to using Spice "pwl" sources. In addition, Nanosim
supports both input and output vectos. The input vectors are
used to drive the circuit, while the output vectors are used to
check the circuit. The header of "adder.vec" is radix 1 44 44 44
io i ii ii oo vname cin a_[7:0] b_[7:0] s_[7:0] We have 3 input
vectors (cin, a and b) and 1 output ve