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ASSEMBLY & COMPILE TOOLS/PLM VAX COMPILER/plmvax/hash.for

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+C***********************************************************************
+C
+C                               HASH.FOR
+C
+C
+C		D I S C L A I M E R   N O T I C E		      
+C		-------------------   -----------
+C
+C  This document and/or portions of the material and data furnished
+C  herewith, was developed under sponsorship of the U. S. Government.
+C  Neither the U.S. nor the U.S.D.O.E., nor the Leland Stanford Junior
+C  University, nor their employees, nor their respective contractors,
+C  subcontractors, or their employees, makes any warranty, express or
+C  implied, or assumes any liability or responsibility for accuracy,
+C  completeness or usefulness of any information, apparatus, product
+C  or process disclosed, or represents that its use will not infringe
+C  privately-owned rights.  Mention of any product, its manufacturer,
+C  or suppliers shall not, nor is it intended to, imply approval, dis-
+C  approval, or fitness for any particular use.  The U. S. and the
+C  University at all times retain the right to use and disseminate same
+C  for any purpose whatsoever.  Such distribution shall be made by the
+C  National Energy Software Center at the Argonne National Laboratory
+C  and only subject to the distributee furnishing satisfactory proof
+C  that he has a valid license from the Intel Corporation in effect.
+C
+C
+C-----------------------------------------------------------------------
+C
+C    This module of the PL/M-VAX compiler contains the symbol table
+C    hash code routine, which maps a 32 character identifier into
+C    an integer in the range [0..210].
+C
+C-----------------------------------------------------------------------
+C		R E V I S I O N   H I S T O R Y
+C
+C    18OCT81  Alex Hunter  1. Added disclaimer notice. (V5.4)
+C
+C-----------------------------------------------------------------------
+      INTEGER*4 FUNCTION HASH (ID)
+      IMPLICIT INTEGER*4 (A-Z)
+      CHARACTER*32 ID
+ 
+      HASH= ((
+     #            (ICHAR(ID(1:1))+ICHAR(ID(5:5))+ICHAR(ID(9:9)))*256
+     #          + (ICHAR(ID(2:2))+ICHAR(ID(6:6))+ICHAR(ID(10:10))))*256
+     #          + (ICHAR(ID(3:3))+ICHAR(ID(7:7))+ICHAR(ID(11:11))))*256
+     #          + (ICHAR(ID(4:4))+ICHAR(ID(8:8))+ICHAR(ID(12:12)))
+      HASH=MOD(IABS(HASH),211)
+      RETURN
+      END