Here is the Sun compiler. It is "3L SPARC IMP version 1.0.6". It needs Solaris 1.x to link, but the compiler and the resulting executables will run on any Solaris version.
Name Last modified Size Description
imp-sun.tar 2008-10-13 07:46 360K imp 2008-10-13 07:45 224K libimp.a 2008-10-13 07:46 79K hello 2008-10-13 07:46 32K sysspecs.inc 2008-10-13 07:46 2.2K connect.inc 2008-10-13 07:46 1.6K maths.inc 2008-10-13 07:46 1.2K signal.inc 2008-10-13 07:46 965 cliparse.inc 2008-10-13 07:46 797 ascii.inc 2008-10-13 07:45 629 heap.inc 2008-10-13 07:46 548 archaisms.inc 2008-10-13 07:46 441 textutils.inc 2008-10-13 07:46 331 hello.o 2008-10-13 07:46 284 README 2008-10-13 07:46 174 lognames.inc 2008-10-13 07:45 140 console.inc 2008-10-13 07:46 138 hello.imp 2008-10-13 07:46 55 an_example.csh 2008-10-13 07:46 52