HP 3000 Manuals

Introduction to MPE XL for MPE V Programmers Migration Guide

MYCOMMAND (CM) and SEARCH (CM) 
(changed) 

Because of the architectural difference between MPE V/E (16-bit) and MPE
XL (32-bit) systems, the NM version of the MYCOMMAND intrinsic and the
SEARCH intrinsic are incompatible with the CM versions.  The defn 
parameter in both intrinsics is impacted by pointer differences between
the two versions of MPE.

MPE/iX 5.0 Documentation