dos/header.S

   1 STACK_SIZE      = 8192
   2 HEAP_SIZE       = 16384
   3
   4                 .section ".header","a"
   5                 .balign 512
   6 __header_start:
   7                 .short  0x5a4d
   8                 .short  _exe_edata_low
   9                 .short  _exe_edata_blocks
  10                 .short  0               /* Relocation count */
  11                 .short  (__header_end - __header_start) >> 4
  12                 .short  _exe_bss_paras
  13                 .short  _exe_bss_paras
  14                 .short  _exe_text_seg   /* SP */
  15                 .short  __stack_end
  16                 .short  0               /* Checksum */
  17                 .short  _start
  18                 .short  _exe_text_seg   /* CS */
  19                 .short  __reloc
  20                 .short  0               /* Overlay number */
  21 /*
  22  * Don't put these fields in unless we actually have an NE or PE image;
  23  * some tools might get confused and assume __reloc = 64 automatically
  24  * means an NE/PE image or a Windows image of some sort.
  25  */
  26 #if 0
  27                 .short  0               /* Unknown/pad? */
  28                 .short  0               /* Unknown/pad? */
  29                 .short  0               /* Unknown/pad? */
  30                 .short  0               /* Unknown/pad? */
  31                 .short  0               /* Unknown/pad? */
  32                 .short  0               /* Unknown/pad? */
  33                 .short  0               /* Unknown/pad? */
  34                 .short  0               /* Unknown/pad? */
  35                 .short  0               /* Unknown/pad? */
  36                 .short  0               /* Unknown/pad? */
  37                 .short  0               /* Unknown/pad? */
  38                 .short  0               /* Unknown/pad? */
  39                 .short  0               /* Unknown/pad? */
  40                 .short  0               /* Unknown/pad? */
  41                 .short  0               /* Unknown/pad? */
  42                 .short  0               /* Unknown/pad? */
  43                 .long   0               /* Pointer to Windows PE header */
  44 #endif
  45                 .balign 4
  46 __reloc:
  47                 .balign 512
  48 __header_end:
  49
  50                 .section ".heap","aw"
  51                 .space  HEAP_SIZE
  52
  53                 .section ".stack","aw"
  54                 .space  STACK_SIZE