irsim: irsim (A digital circuit simulator) irsim: irsim: IRSIM is a tool developed at Stanford, for simulating digital circuit. irsim: It is a "switch-level" simulator; that is, it treats transistors as irsim: ideal switches. IRSIM shares a history with magic, although it is an irsim: independent program. irsim: irsim: irsim: irsim: irsim: