gpsim: gpsim (A full-featured software simulator for PIC microcontrollers) gpsim: gpsim: Gpsim is a full-featured software simulator for Microchip PIC gpsim: microcontrollers distributed under the GNU General Public License, gpsim: Version 2 or higher, and some of it's libraries under GNU Lesser gpsim: General Public License, Version 2 or higher. gpsim: Gpsim has been designed to be as accurate as possible. gpsim: Accuracy includes the entire PIC - from the core to the I/O pins gpsim: and including ALL of the internal peripherals. gpsim: gpsim: