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Annotation of researchv10no/cmd/PDP11/a.out.h, revision 1.1

1.1     ! root        1: /*     pdp11 format a.out.h
        !             2:  *     god: made int's and unsigned's short
        !             3:  */
        !             4: struct exec {  /* a.out header */
        !             5:        short           a_magic;        /* magic number */
        !             6:        unsigned short  a_text;         /* size of text segment */
        !             7:        unsigned short  a_data;         /* size of initialized data */
        !             8:        unsigned short  a_bss;          /* size of unitialized data */
        !             9:        unsigned short  a_syms;         /* size of symbol table */
        !            10:        unsigned short  a_entry;        /* entry point */
        !            11:        unsigned short  a_unused;       /* not used */
        !            12:        unsigned short  a_flag;         /* relocation info stripped */
        !            13: };
        !            14: 
        !            15: #define        A_MAGIC1        0407            /* normal */
        !            16: #define        A_MAGIC2        0410            /* read-only text */
        !            17: #define        A_MAGIC3        0411            /* separated I&D */
        !            18: #define        A_MAGIC4        0405            /* overlay */
        !            19: 
        !            20: struct nlist { /* symbol table entry */
        !            21:        char            n_name[8];      /* symbol name */
        !            22:        short           n_type;         /* type flag */
        !            23:        unsigned short  n_value;        /* value */
        !            24: };
        !            25: 
        !            26:                /* values for type flag */
        !            27: #define        N_UNDF  0       /* undefined */
        !            28: #define        N_ABS   01      /* absolute */
        !            29: #define        N_TEXT  02      /* text symbol */
        !            30: #define        N_DATA  03      /* data symbol */
        !            31: #define        N_BSS   04      /* bss symbol */
        !            32: #define        N_TYPE  037
        !            33: #define        N_REG   024     /* register name */
        !            34: #define        N_FN    037     /* file name symbol */
        !            35: #define        N_EXT   040     /* external bit, or'ed in */
        !            36: #define        FORMAT  "%.6o"  /* to print a value */

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