HP 3000 Manuals

HP Transact Reference Manual

Comments 

Comments document a program but do not affect program execution.
Comments appear in the source code listing but do not generate any code.
They can appear anywhere in the statement line and are enclosed between
pairs of angled brackets (<< and >>), as follows:

     <<comment>>

Figure 2-1 includes several comments.  The following example shows how a
comment is used in Transact code.

     MOVENAME:
       MOVE (OUT-NAME) = (IN-NAME);   << Move input field to output field >>

MPE/iX 5.0 Documentation