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.
Icon  Name                    Last modified      Size  Description
[   ] imp 2008-10-13 07:45 224K [   ] ascii.inc 2008-10-13 07:45 629 [   ] lognames.inc 2008-10-13 07:45 140 [   ] imp-sun.tar 2008-10-13 07:46 360K [   ] hello 2008-10-13 07:46 32K [TXT] README 2008-10-13 07:46 174 [   ] textutils.inc 2008-10-13 07:46 331 [   ] cliparse.inc 2008-10-13 07:46 797 [   ] sysspecs.inc 2008-10-13 07:46 2.2K [   ] console.inc 2008-10-13 07:46 138 [   ] archaisms.inc 2008-10-13 07:46 441 [VID] hello.o 2008-10-13 07:46 284 [   ] maths.inc 2008-10-13 07:46 1.2K [   ] connect.inc 2008-10-13 07:46 1.6K [   ] an_example.csh 2008-10-13 07:46 52 [TXT] heap.inc 2008-10-13 07:46 548 [   ] libimp.a 2008-10-13 07:46 79K [   ] hello.imp 2008-10-13 07:46 55 [   ] signal.inc 2008-10-13 07:46 965