CHECK and CHANGE-D
8-544

Benjamin C, Woodbury, Holden, Massachusetts

CHECK and CHANGE-D is an octal debugging program. Its
advantage over DEC's DDT is that it loses no locations of core.
It takes advantage of Monitor's scratch blocks, and automatic
input-output block reading into core. CHECK and CHANGE-
D stores its master controller in this place, reads specific
blocks over itself, and uses 7200-7377 for a scratch page.
When finished it restores block 2.

Minimum Hardware:
4K PDP-8, at least one disk unit,
ASR33
Other Programs Needed:
DEC's Monitor System
Source Language:
PAL-D

Catalog:July 1973