As mentioned in different discussion, I added support for P18F4620 to gpsim. This also means adding a EEPROM_LONG for 8 bit wide and up to 65536 bytes long eeprom. Since I derived it from P18F4x21 I also had to modify Config3H_2x21.
I have tested it in all ways I could think of, but of cause there might still be bugs.
The patch is made from a CVS revision from October 2010, so hope it is still compatible with current CVS.
Hope you like it!
Torben M Hansen