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C/C++ Source or Header  |  1993-05-03  |  3KB  |  83 lines
  1. /*static char *SCCSID = "@(#)exe.h    6.3 92/03/15";*/
  2. /*static char *SCCSID = "@(#)exe.h    6.3 92/03/15";*/
  3. /****************************** Module Header ******************************\
  4. *                                                                          *
  5. * Copyright (c) 1987  - 1992 IBM Corporation                               *
  6. *                                                                          *
  7. * Module Name: EXE.H                                                       *
  8. *                                                                          *
  9. * EXE header format.                                                       *
  10. *                                                                          *
  11. \***************************************************************************/
  12.  
  13. #pragma info( none )
  14.    #ifndef __CHKHDR__
  15.       #pragma info( none )
  16.    #endif
  17. #pragma info( restore )
  18. #ifdef __cplusplus
  19.       extern "C" {
  20. #endif
  21.  
  22. #ifndef __EXE__
  23. #define __EXE__
  24.  
  25. #ifndef BYTE
  26. typedef unsigned char BYTE;
  27. #endif
  28.  
  29. #ifndef WORD
  30. typedef unsigned short WORD;
  31. #endif
  32.  
  33. typedef WORD bbmask;
  34.  
  35. struct exe {
  36.         WORD eid;                       /* contains EXEID, below */
  37.         WORD elast;                     /* # of bytes in last page */
  38.         WORD epagsiz;                   /* # of pages in whole file */
  39.         WORD erelcnt;                   /* # of relocation entrys */
  40.         WORD ehdrsiz;                   /* size of header, in paragraphs */
  41.         WORD eminfre;                   /* min # of free paragraphs needed */
  42.         WORD emaxfre;                   /* max # of free paragraphs needed */
  43.         WORD eiSS;                      /* initial SS value */
  44.         WORD eiSP;                      /* initial SP value */
  45.         WORD enegsum;                   /* negative sum of entire file */
  46.         WORD eiIP;                      /* initial IP value */
  47.         WORD eiCS;                      /* initial CS value */
  48.         WORD ereloff;                   /* offset in file of relocation table */
  49.         WORD eovlnum;                   /* number of the overlay */
  50.  
  51. /*      the following fields may not be present.
  52.  *              ereloff = 28            not present
  53.  *                      = 30            exe.ever present and valid
  54.  *                      = 32            exe.ever field contains garbage
  55.  *              ereloff > 32            exe.ever present and valid
  56.  *                                              = 0 if "don't know"
  57.  */
  58.  
  59.         WORD ever;                      /* version # of producing linker */
  60.         WORD dumy;                      /* unused */
  61.  
  62. /*      the following fields may not be present - if the exe.ereloff
  63.  *      value encompasses the fields then they are present and valid.
  64.  */
  65.  
  66.         bbmask  ebb;                    /* behavior bits */
  67.         WORD dumy2[7];                  /* must be 0 until defined */
  68. };
  69.  
  70.  
  71. #define EXEID 0x5a4d                    /* magic ID value */
  72.  
  73. #endif /* __EXE__ */
  74.  
  75. #ifdef __cplusplus
  76.         }
  77. #endif
  78. #pragma info( none )
  79.    #ifndef __CHKHDR__
  80.       #pragma info( restore )
  81.    #endif
  82. #pragma info( restore )
  83.