This structure describes the header of an object file in Digital Research format:
typedef struct { int16_t magic; /* Magical value: 0x601a */ int32_t tsize; /* Size of the TEXT segment */ int32_t dsize; /* Size of the DATA segment */ int32_t bsize; /* Size of the BSS */ int32_t ssize; /* Size of the symbol table */ int8_t reserved[10]; /* Reserved, set to zero */ } OHEADER;