But I advise no one to use it for anything else but compiling Linux. This version supports only a hacked minix object file format, which is not supported by the GNU binutils or anything, and it has a few bugs in 32-bit mode, so you really should better keep it only for compiling Linux. The most recent versions are published together with the FreeBSD distribution. If you would recompile them with free compilers and send me, I'd appreciate a lot. The docs are what is included in the bcc package.
Man pages are also available somewhere on the FreeBSD site.
Non-32bit x86 assemblers.