SAMOC project:

use extremely simplified circuit models to enlarge the size of simulated analog VLSI.
simplified circuit models contain semiconductor devices such as MOS transistors and ideal diodes.
ideal switches, ideal capacitors and ideal OPAMPs models are used for switched-capacitor network simulations.
circuit partitioning and even driven simulation make analysis of analog VLSI circuits feasible.

The inheritance of classes are good for handling different types of circuit devices.
The main classes are: device class, node class, circuit class, circuit block (subcircuit) class, solve classes (different solving methods either for the whole circuit or for the extracted circuit blocks), and some data visualiztion classes.
Interconnected pointers data structure for fast data manipulating.
SAMOC uses many virtual functions based on the inheritance class structure for devices. The virtual functions are mainly used in

circuit partitioning (circuit block extraction): different type of devices have different ways to be included into a circuit block.
circuit equation formulation (filling the device stamps): different type of devices have different device stamps.

SAMOC uses CString of MFC class to manipulate device names and node names. Especially it makes coding of SPICE reader easy.
SAMOC uses CTypedPtrArray MFC class to manage and collect linked devices, nodes and circuit block objects.

The code editing and debugging takes place in MS Visual Studio environment.
The purpose of developing SAMOC is to create a circuit simulation based design "verification" environment. At present stage SAMOC is aimed at

Piecewise linear approach to nonlinear resistive devices such as PMOS, NMOS, Ideal Diodes ....

MOS Transistor model used in SAMOC

The DC models of MOS transistors and ideal diodes used in SAMOC are piecewise linear.

This method tolerates singularity of the circuit matrix caused by ideal switches.

SAMOC works for Switched-capacitor networks such as SC filters and DC-DC Charge Pumps.

assumes taht there is only one resistive device in the resistive load analysis in the switched-capacitor network

simulating a circuit with acyclic block graph (before the development of delay estimation)

an example of circuit partitioning

DC sweep (pdf 25k) of a wide-range transconductance amplifier.
The recent research results about using SAMOC for switched-capacitor network design is in the Charge pump paper.
SAMOC contains a crude plotter for fast data visualization. However, all plots shown were made by Matlab by exporting data from SAMOC.
SAMOC is based on a doctoral research performed by Dr. Ying-Wei Jan and the source code is available either from him or Dr. Janusz Starzyk. SAMOC programmers' note explains all classes and member functions inside SAMOC. It needs MS VC++ to compile.