I was having some problems compiling SIMH on FreeBSD. The reason is, all the sources have stray MS-DOS carriage returns (^M), while UNIX only uses line-feeds (^J). This causes GCC to misread some of the code. I suggest you convert the sources to UNIX text format. Once I correct all that, the code compiles fine for me. BTW, why is networking not supported on FreeBSD? Does the pcap driver not work? -- Maciek (macbiesz(a)optonline.net)