Terminal is a small program (about 4 kB assembled) that is a serial terminal program for a PC, even an old XT. Function keys control all parameters. Terminal was written by Eric Auer and I got it from this URL after reading Eric's announcement in the Freedos home page. What I have done is suggest modifications to run standalone. By prepending the Etherboot ROM header to it we can make a legal BIOS extension ROM, hence the Etherboot connection.

The tarball contains an 8 kB binary ROM image, suitable for putting on a ROM which will go onto practically any extension BIOS ROM socket, e.g. on an unloved NIC. To rebuild it fetch the original source from the URL above, unpack, apply the patch included (which may be empty), then run make. You will need the GCC compiler and nasm.