Eberhard Werner, Scripps Institution of Oceanography,
University of California, San Diego, California

TRACE interpretively executes a PDP-8 program. At the same
time a printout is provided of the contents of the program
counter, the instruction, the link, accumulator, and multi
plier-quotient registers, and where applicable the effective
address and the contents of the effective address. This
printout may be for all or a selected type of instruction
within selected memory bounds. The program is capable of
handling any PDP-8 instruction including lOT, two-word
EAE, and interrupt instructions. TRACE cannot be destroyed
by the program being traced while TRACE is in control.

Minimum Hardware:
PDP-8 with Type 182 EAE, ASR-33

Storage Requirement:
4008 or 5008 locations.

Catalog: November 1969