#include "pmode.h"

long __pascal dosfunc (PTR buf, int func)
{
  REGSTRUCT rs;
  int r;

  rs.flags = rs.sp = rs.ss = 0;
  rsAX(rs) = func;

  if (((DWORD)buf + database) > 0xfffff)
  {
    strcpy (_lowbufptr, buf);
    buf = _lowbufptr;
  }

  rsDS(rs) = (DWORD)buf + database >> 4;
  rsDX(rs) = (DWORD)buf + database & 15;

  if ((r = xlt_simrmint (0x21, &rs, 0)) < 0)
    return r;

  if (rs.flags & fCF)
    return rs.eax | 0xffff0000;
  return rsAX (rs);
}