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*+)&%*)..&)55,*)&&&&&>"

!    $

:77<%<4

IPCCONTROL(descriptor,requestfd,wrtdata,wlen,readdata,rlen,

flags,result)

descriptor 32-bit integer, by value in Pascal, by

reference in FORTRAN$ %     

  ( !"$ .# (     

57      )"  

  )" !$

request 32-bit integer, by value in Pascal, by

reference in FORTRAN$ )" $ 9 

   ( !$ .# (    &

D  P       descriptor

!  #" !$ + IPCSend 

IPCRecv '    57  ( (#  57

    vcdesc !$ +

IPCRecvCn'      ( (#  

    calldesc !$

D C P       descriptor

!  #" !$ + IPCSend 

IPCRecv     57  ( (#  57

    vcdesc !$ +

IPCRecvCn'      ( (#  

    calldesc !$

D - P 7   6 #" !"$

% " !" "  F $ + IPCSend

 IPCRecv '    57  ( (# 

57     vcdesc !$ +

IPCRecvCn'      ( (#  

    calldesc !$ %

!" "      $ + *!'

 "  C "  C $ % 

!" " !" (    wrtdata !$

% !" " !" (     2  -CHFH$

 "   !   "  $

 "  2   !"  #$ % !"

  (        

#" !   (  #" !$

D  P 7      57 

  descriptor !$  

  (# (# "$ % descriptor !

!"   57  $ %  

 " !" (    wrtdata

!$

D  P 7      57 

 (#  descriptor !$ A

   (# (# "$ % descriptor

! !"   57  $ %

   " !" (    wrtdata

!$