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                    InJer-Office Memorandum

          To             BCPL Users                       Date           March 7, 1974

          From           Bill Duvall                      Location       Palo Alto

          Subject       BCPL Symbol Table Format          Organization   PARC/SSL
                        (Gleaned from Allen Brown1s
                        Debugger Notes)
)(ERO)(
            c:           Jim Curry, Jim Morris


               BCPL SYMBOL TABLE FORMAT
                    BLDR PROGRAM/S/M 000
                         PROGRAM.BM

                              0       VERSION
                              1       LENGTH
                              2       STRING START
                              3       SYMBOL START




                              SIZE OF STRING STORAGE
                                   STRING
                                   STORAGE




                              # SYMBOLS
                                   SYMBOL TABLE ENTRIES

                                           o    PTR TO String Storage
                                                     (begins at L)
                                           1:   Bit O-X Type
                '+   UNDEF      0
                     VARIABLE   1
                     PROC       2
                     LABEL      3
                     BRFILE     4
                     BIN FILE   5
                     MANIFEST   6

          BIT 5: External
          BITS 6-15: 777



WORD 2:
          (a) FOR PROC, LABEL, VARIABLE STATIC ADDRESS
          (b) FOR MANIFEST VALUE

WORD 3:   777

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