UPS 1. . 2. A source level debugger that runs under or by Mark Russell . Ups includes a which allows you to add fragments of code simply by editing them into the source window. Version 2.1. Ported to , , , . {(ftp://export.lcs.mit.edu/contrib/)}. Mailing list: ups-users-request@ukc.ac.uk. Unofficial enhancements by Rod Armstrong {(ftp://sj.ate.slb.com/misc/Unix/ups/contrib/rob)}. (1991-05-20)