FTN,L 
C 
C 
C 
CC************************************************************
C (C) COPYRIGHT HEWLETT-PACKARD COMPANY 1978.  ALL RIGHTS    *
C RESERVED.  NO PART OF THIS PROGRAM MAY BE PHOTOCOPIED, RE- *
C PRODUCED, OR TRANSLATED TO ANOTHER PROGRAM LANGUAGE WITH-  *
C OUT THE PRIOR WRITTEN CONSENT OF HEWLETT-PACKARD COMPANY.  *
CC************************************************************
C 
C 
C 
C      NAME: SETUU AND SETGU COMMANDS 
C      SOURCE: 92840 - 18055
C      RELOC:  92840 - 16001
C 
C 
C 
CC*********************************************************** 
C 
      SUBROUTINE XSETU(IN,IGCB), 92840-16001 REV.1819 780515
C 
CCCC
C     THIS CALL ESTABLISHES AN ADDRESS LINK BETWEEN THE GRAPGHICS 
C  PACKAGE AND THE CURRENT GCB AND ALSO CHECKS FOR A SUSPENDED GCB. 
C 
      ISUSP= 0
      CALL GCBIM(99,1,IGCB,ISUSP) 
      IF(ISUSP.NE.0)RETURN
C 
C     SET BIT 1 OF STATUS WORD TO INDICATE USER UNITS 
C 
      GO TO(100,200),IN 
100   CALL GRSTS(2,77776B,1)
      RETURN
C 
C     SET BIT 1 OF STATUS WORD = 0 TO INDICATE GDU'S
C 
200   CALL GRSTS(2,77776B,0)
      RETURN
      END 
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