miscemu/int26.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include "registers.h"
   4 #include "msdos.h"
   5 #include "wine.h"
   6 #include "stddebug.h"
   7 /* #define DEBUG_INT */
   8 /* #undef  DEBUG_INT */
   9 #include "debug.h"
  10
  11 void IntBarf(int i, struct sigcontext_struct *context);
  12
  13 int do_int26(struct sigcontext_struct *context)
  14 {
  15         BYTE *dataptr = pointer(DS, BX);
  16         DWORD begin, length;
  17
  18         if (CX == 0xffff) {
  19                 begin = getdword(dataptr);
  20                 length = getword(&dataptr[4]);
  21                 dataptr = (BYTE *) getdword(&dataptr[6]);
  22
  23         } else {
  24                 begin = DX;
  25                 length = CX;
  26         }
  27
  28         dprintf_int(stdnimp,"int26: abs diskwrite, drive %d, sector %d, count %d,"
  29                 " buffer %d\n", EAX & 0xff, begin, length, (int) dataptr);
  30
  31         ResetCflag;
  32
  33         /* push flags on stack */
  34         SP -= sizeof(WORD);
  35         setword(pointer(SS,SP), (WORD) EFL);
  36
  37         return 1;
  38 }