Exemple #1
0
/* -----------------------------------------------------------------------------
 * gen_operand() - Generates assembly output for each operand.
 * -----------------------------------------------------------------------------
 */
static void gen_operand(struct ud* u, struct ud_operand* op, int syn_cast)
{
  switch(op->type) {
  case UD_OP_REG:
    ud_asmprintf(u, "%s", ud_reg_tab[op->base - UD_R_AL]);
    break;

  case UD_OP_MEM:
    if (syn_cast) {
      opr_cast(u, op);
    }
    ud_asmprintf(u, "[");
    if (u->pfx_seg) {
      ud_asmprintf(u, "%s:", ud_reg_tab[u->pfx_seg - UD_R_AL]);
    }
    if (op->base) {
      ud_asmprintf(u, "%s", ud_reg_tab[op->base - UD_R_AL]);
    }
    if (op->index) {
      ud_asmprintf(u, "%s%s", op->base != UD_NONE? "+" : "",
                              ud_reg_tab[op->index - UD_R_AL]);
      if (op->scale) {
        ud_asmprintf(u, "*%d", op->scale);
      }
    }
    if (op->offset != 0) {
      ud_syn_print_mem_disp(u, op, (op->base  != UD_NONE || 
                                    op->index != UD_NONE) ? 1 : 0);
    }
    ud_asmprintf(u, "]");
    break;
      
  case UD_OP_IMM:
    ud_syn_print_imm(u, op);
    break;


  case UD_OP_JIMM:
    ud_syn_print_addr(u, ud_syn_rel_target(u, op));
    break;

  case UD_OP_PTR:
    switch (op->size) {
      case 32:
        ud_asmprintf(u, "word 0x%x:0x%x", (unsigned int) op->lval.ptr.seg, 
           (unsigned int) (op->lval.ptr.off & 0xFFFF));
        break;
      case 48:
        ud_asmprintf(u, "dword 0x%x:0x%x", op->lval.ptr.seg, 
          (unsigned int) op->lval.ptr.off);
        break;
    }
    break;

  case UD_OP_CONST:
    if (syn_cast) opr_cast(u, op);
    ud_asmprintf(u, "%d", (int) op->lval.udword);
    break;

  default: return;
  }
}
Exemple #2
0
/* -----------------------------------------------------------------------------
 * gen_operand() - Generates assembly output for each operand.
 * -----------------------------------------------------------------------------
 */
static void 
gen_operand(struct ud* u, struct ud_operand* op)
{
  switch(op->type) {
  case UD_OP_CONST:
    ud_asmprintf(u, "$0x%x", op->lval.udword);
    break;

  case UD_OP_REG:
    ud_asmprintf(u, "%%%s", ud_reg_tab[op->base - UD_R_AL]);
    break;

  case UD_OP_MEM:
    if (u->br_far) {
        opr_cast(u, op);
    }
    if (u->pfx_seg) {
      ud_asmprintf(u, "%%%s:", ud_reg_tab[u->pfx_seg - UD_R_AL]);
    }
    if (op->offset != 0) { 
      ud_syn_print_mem_disp(u, op, 0);
    }
    if (op->base) {
      ud_asmprintf(u, "(%%%s", ud_reg_tab[op->base - UD_R_AL]);
    }
    if (op->index) {
      if (op->base) {
        ud_asmprintf(u, ",");
      } else {
        ud_asmprintf(u, "(");
      }
      ud_asmprintf(u, "%%%s", ud_reg_tab[op->index - UD_R_AL]);
    }
    if (op->scale) {
      ud_asmprintf(u, ",%d", op->scale);
    }
    if (op->base || op->index) {
      ud_asmprintf(u, ")");
    }
    break;

  case UD_OP_IMM:
    ud_syn_print_imm(u, op);
    break;

  case UD_OP_JIMM:
    ud_syn_print_addr(u, ud_syn_rel_target(u, op));
    break;

  case UD_OP_PTR:
    switch (op->size) {
      case 32:
        ud_asmprintf(u, "$0x%x, $0x%x", op->lval.ptr.seg, 
          op->lval.ptr.off & 0xFFFF);
        break;
      case 48:
        ud_asmprintf(u, "$0x%x, $0x%x", op->lval.ptr.seg, 
          op->lval.ptr.off);
        break;
    }
    break;
      
  default: return;
  }
}
/* -----------------------------------------------------------------------------
 * gen_operand() - 为每个操作数生成汇编输出.
 * -----------------------------------------------------------------------------
 */
static void gen_operand(struct ud *u,struct ud_operand *op,int syn_cast,wchar_t *wtmp,size_t wcount)
{

  switch(op->type)
  {
  case UD_OP_REG:
    wprintfcat(wtmp,wcount,L"%s",ud_reg_tab[op->base - UD_R_AL]);
    ud_casmprint(u,UDCA_GPRs,3,wtmp);
    break;

  case UD_OP_MEM:
    if (syn_cast)
      opr_cast(u, op,wtmp,wcount); //操作数类型 dword ptr

    if (u->pfx_seg)
      wprintfcat(wtmp,wcount,L"%s:", ud_reg_tab[u->pfx_seg - UD_R_AL]);  //段寄存器

    wprintfcat(wtmp,wcount,L"[");

    if (op->base)
      wprintfcat(wtmp,wcount,L"%s", ud_reg_tab[op->base - UD_R_AL]);

    if (op->index)
    {
      wprintfcat(wtmp,wcount,L"%s%s", op->base != UD_NONE? L"+" : L"",ud_reg_tab[op->index - UD_R_AL]);
      if (op->scale)
        wprintfcat(wtmp,wcount,L"*%d", op->scale);
    }
    if (op->offset != 0)
    {
      ud_syn_print_mem_disp(u, op, (op->base != UD_NONE || op->index != UD_NONE) ? 1 : 0,wtmp,wcount);
    }
    wprintfcat(wtmp,wcount,L"]");
    ud_casmprint(u,UDCA_MOther,3,wtmp);
    break;
      
  case UD_OP_IMM:
    ud_syn_print_imm(u, op,wtmp,wcount);
    ud_casmprint(u,UDCA_IMM,3,wtmp);
    break;

  case UD_OP_JIMM:
    ud_syn_print_addr(u, ud_syn_rel_target(u, op),wtmp,wcount);
    ud_casmprint(u,UDCA_IMMAddr,3,wtmp);
    break;

  case UD_OP_PTR:
    switch (op->size)
    {
      case 32:
        wprintfcat(wtmp,wcount,L"word ptr 0x%X:0x%X", op->lval.ptr.seg,op->lval.ptr.off & 0xFFFF);
        break;
      case 48:
        wprintfcat(wtmp,wcount,L"dword ptr 0x%X:0x%X", op->lval.ptr.seg,op->lval.ptr.off);
        break;
    }
    ud_casmprint(u,UDCA_IMM,3,wtmp);
    break;

  case UD_OP_CONST:
    if (syn_cast)
      opr_cast(u, op,wtmp,wcount);
    wprintfcat(wtmp,wcount,L"%d", op->lval.udword);
    ud_casmprint(u,UDCA_IMM,3,wtmp);
    break;

  default:
    return;
  }
}