Corrected LCI, LCR, LCS and OPR 20 -- I had them dealing with the raw contents of the third field of the instruction, but they should have been using Data objects.  Implemented INC.
Corrected LCI, LCR, LCS and OPR 20 -- I had them dealing with the raw
contents of the third field of the instruction, but they should have
been using Data objects.  Implemented INC.

paulhoadley/PAL