It emulates the Labtools development board McLab2 that uses one PIC16F777, PIC16F877A, PIC18F452, PIC18F4520, PIC18F4550 or PIC18F4620 of picsim.
The code examples can be loaded in PICSimLab menu Help->Examples.
The source code of board McLab2 examples using MPLABX and XC8 compiler are in the link: board_McLab2.