Overview of Differences: MPE V/E and MPE XL [ Introduction to MPE XL for MPE V Programmers Migration Guide ] MPE/iX 5.0 Documentation
Introduction to MPE XL for MPE V Programmers Migration Guide
Overview of
Differences:
MPE V/E
and MPE XL
A few intrinsics are supported on MPE V/E but not on MPE XL. There are
also MPE XL intrinsics that are not supported on MPE V/E. For some
intrinsics, there are distinct CM (Compatibility Mode) and NM (Native
Mode) versions. Unless otherwise indicated, intrinsics function the same
in both modes.
Most MPE V/E intrinsics are supported on MPE XL. The exceptions are FCARD
(which supports card readers) and PTAPE (which supports paper tape).
These have obsolete functions and are not callable in MPE XL from CM or
NM. In addition, SWITCHDB cannot be called from NM.
On MPE V/E, you can access an intrinsic via an explicit external
procedure declaration. On MPE XL, you access all system intrinsics via
the intrinsic mechanism.
New
MPE XL features that are not available on MPE V/E include:
* Status Parameter (NM)
Changed
Existing MPE V/E features that have been modified on MPE XL include:
* Intrinsic mechanism
* Generic data type mnemonics
* Intrinsics available
MPE/iX 5.0 Documentation