HP 3000 Manuals

MPE XL Native Language Programmer's Guide

SPL (HP 32100A) 

Specific guidelines for SPL include the following:

 *  To determine whether or not the byte is alphabetic, numeric, or
    special, consult the character attribute table of the character set
    used.  This table is available through NLINFO item 12.  Do not use
    the "IF xyz = (or <>) ALPHA (or NUMERIC or SPECIAL)" construct to
    determine this.

 *  Do not use the MOVE...WHILE construct or the MVBW machine
    instruction.  It stops moving bytes based on the USASCII binary value
    of bytes, then determines if the byte is alphabetic or numeric.  Use
    the NLSCANMOVE intrinsic.

MPE/iX 5.0 Documentation