miscemu/int26.c

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