Author: James C. Good. Jamesville-DeWitt Central Schools, Syracuse, New York

COMPARE is an efficient means for 4K PDP-12 users to compare blocks on LINCtape. It recognizes extended units and utilizes extended addressing. The program compares 7 blocks at a time, although to minimize tape motion it alternates the reading of "from" and "to" blocks. I. E. it will alternate reading "from" & "to" blocks with reading "to" & "from" blacks. So in effect the program compares 14 blocks at a time. It also allows the user to limit the comparison to a specified section of each block.

Minimum Hardware: 4K PDP-12, TTY, 102, One LINCtape drive

Other Programs Needed: PAL 12-A (DECUS NO. 12-77)

Restrictions: Must be assembled with PAL 12-A Assembler, maximum block length on tape is 400 words (octal)

Source Language: PAL 12-A

Catalog: July 1974