The 9/15 OS did not use file extensions, so note that the following files are imp sources files: comp.imp decode.imp edit15.imp gperm.imp gram.imp takeon.imp I think all the others are assembly code source files (.asm or .src in modern terms)
Name Last modified Size Description
README 2008-10-12 01:43 245 dtb.txt 2008-10-12 01:43 1.0K xo.txt 2008-10-12 01:43 1.3K index 2008-10-12 01:43 1.7K dti.txt 2008-10-12 01:43 1.7K ppv.txt 2008-10-12 01:43 1.8K lpo.txt 2008-10-12 01:43 1.9K dto.txt 2008-10-12 01:43 2.0K did.txt 2008-10-12 01:43 2.1K link.txt 2008-10-12 01:43 2.3K ppo.txt 2008-10-12 01:43 2.4K dod.txt 2008-10-12 01:43 2.5K dtn.txt 2008-10-12 01:43 2.5K pri.txt 2008-10-12 01:43 2.7K ttbam.txt 2008-10-12 01:43 2.7K cri.txt 2008-10-12 01:43 3.5K gram.txt 2008-10-12 01:43 4.9K dtf.txt 2008-10-12 01:43 5.0K sysset.txt 2008-10-12 01:43 5.1K decode.txt 2008-10-12 01:43 7.5K takeon.txt 2008-10-12 01:43 13K edit15.txt 2008-10-12 01:43 15K load.txt 2008-10-12 01:43 16K super.txt 2008-10-12 01:43 17K gperm.txt 2008-10-12 01:43 24K exec.txt 2008-10-12 01:43 28K comp.txt 2008-10-12 01:43 40K