Anyone have papers or references about doing computation on non-2 complement encoded numbers? Very interested in computation on numbers encoded with error correction in them.

Tim .... Tom Conte response Yes, we've done extensive work on this. Extending Moore’s Law via Computationally Error Tolerant Computing http://prod.tinker.cc.gatech.edu/pdfs2/taco18.pdf

Prof. Avizienis is an important pioneer. He has written relatively recent surveys of the field: https://scholar.google.com/citations?hl=en&user=ujXEG6oAAAAJ&view_op=list_works&sortby=pubdate