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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 

You can use commands and intrinsics to get system information.  You can
find out about system configuration, file structure, and whether a
process is executing properly.

The MPE V/E programmer will not find major changes in information
retrieval processes in MPE XL.

The FREE5 utility has been replaced by the DISCFREE utility.

MPE V/E is based on a 16-bit word; MPE XL is based on a 32-bit word.
Dumps and other readouts that were octal in MPE V/E are likely to be
hexadecimal in MPE XL. Data requirements for command and intrinsic
parameters may have change because MPE XL uses a 32-bit virtual addresses
for files.

Some NM intrinsics have a status parameter, a 32-bit signed integer
passed by reference, which replaces condition codes for error checking
For more information about the status parameter, see Chapter 2, Preparing
a Program for Execution.

New 

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

 *  DISCFREE Utility

Changed 

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

 *  System Logging Facility

 *  The following intrinsics:

FFILEINFO
FGETINFO
FLABELINFO

 *  The following commands:

LISTACCT                                    LISTF
LISTFTEMP                                   LISTGROUP
LISTUSER                                    REPORT
SHOWCATALOG

Not Used 

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

 *  FREE5 Utility

Unchanged 

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

 *  The following intrinsics:

CALENDAR                                    CLOCK
DATELINE                                    FCHECK
FERRMSG                                     FINDJCW
FMTCALENDAR                                 FMTCLOCK
FMTDATE                                     FRELATE
GETJCW                                      JOBINFO
PRINTFILEINFO                               PROCINFO
PROCTIME                                    PUTJCW
SETJCW                                      TIMER
WHO

 *  The following commands:

LISTEQ                                      RESUMELOG
SETJCW                                      SHOWALLOW
SHOWDEV                                     SHOWIN
SHOWJCW                                     SHOWJOB
SHOWLOG                                     SHOWME
SHOWOUT                                     SHOWTIME
SWITCHLOG



MPE/iX 5.0 Documentation