HP 3000 Manuals

Introduction to MPE XL for MPE V Programmers Migration Guide

Overview of MPE XL and MPE V/E Differences 

Data segment management is identical in MPE V/E and MPE XL Compatibility
Mode (CM). Data Segment Management has been modified in MPE XL Native
Mode (NM).

Split Stack Mode Execution is identical in MPE V/E and MPE XL CM. Split
Stack Mode execution has been eliminated from NM.

Changed 

Existing MPE V/E features that have been modified on MPE XL include:

 *  Extra Data Segments (NM)

Not Used 

Existing MPE V/E features that are not supported on MPE XL include:

 *  Split Stack Mode Execution (NM)

 *  SWITCHDB intrinsic (NM)

Unchanged 

Existing MPE V/E features that are the same on MPE XL include:

ALTDSEG                                     DMOVIN
DMOVOUT                                     FREEDSEG
GETDSEG                                     SWITCHDB (CM)

MPE/iX 5.0 Documentation