 
      SUBROUTINE XERABT(MESSG,NMESSG)
C***BEGIN PROLOGUE  XERABT
C***DATE WRITTEN   790801   (YYMMDD)
C***REVISION DATE  820801   (YYMMDD)
C***CATEGORY NO.  R3C
C***KEYWORDS  ERROR,XERROR PACKAGE
C***AUTHOR  JONES, R. E., (SNLA)
C***PURPOSE  Aborts program execution and prints error message
C***DESCRIPTION
C
C     Abstract
C        ***Note*** machine dependent routine
C        XERABT aborts the execution of the program.
C        The error message causing the abort is given in the calling
C        sequence, in case one needs it for printing on a dayfile,
C        for example.
C
C     Description of Parameters
C        MESSG and NMESSG are as in XERROR, except that NMESSG may
C        be zero, in which case no message is being supplied.
C
C     Written by Ron Jones, with SLATEC Common Math Library Subcommittee
C     Latest revision ---  7 June 1978
C***REFERENCES  JONES R.E., *SLATEC COMMON MATHEMATICAL LIBRARY ERROR
C                 HANDLING PACKAGE*, SAND78-1189, SANDIA LABORATORIES,
C                 1978.
C***ROUTINES CALLED  (NONE)
C***END PROLOGUE  XERABT
 
 
