@ This utility ported for AXP by N. R. Arnot, NRA@UK.AC.KCL.PH.IPG  > The .AXP-DIF files are difference outputs between the original- C and H and MAR files pre-port and post-port.   $ COMPILE.COM now works on AXP and VAX  7 Not exhaustively tested, but it seems to behave itself.   