/// <summary>
/// Translates to ATT syntax .
/// </summary>
/// <param name="u">TODO u.</param>
private void Ud_translate_att(Instruction u)
{
Int32 size = 0;
Boolean star = false;
// check if P_OSO prefix is used
if (BitOps.P_OSO(u.ItabEntry.Prefix) == 0 && u.PfxOpr != 0)
{
switch (u.DisMode)
{
case ArchitectureMode.x86_16:
Content.AppendFormat("o32 ");
break;
case ArchitectureMode.x86_32:
case ArchitectureMode.x86_64:
Content.AppendFormat("o16 ");
break;
}
}
// check if P_ASO prefix was used
if (BitOps.P_ASO(u.ItabEntry.Prefix) == 0 && u.PfxAdr != 0)
{
switch (u.DisMode)
{
case ArchitectureMode.x86_16:
Content.AppendFormat("a32 ");
break;
case ArchitectureMode.x86_32:
Content.AppendFormat("a16 ");
break;
case ArchitectureMode.x86_64:
Content.AppendFormat("a32 ");
break;
}
}
if (u.PfxLock != 0)
{
Content.AppendFormat("lock ");
}
if (u.PfxRep != 0)
{
Content.AppendFormat("rep ");
}
else if (u.PfxRepe != 0)
{
Content.AppendFormat("repe ");
}
else if (u.PfxRepne != 0)
{
Content.AppendFormat("repne ");
}
// special instructions
switch (u.Mnemonic)
{
case UdMnemonicCode.UD_Iretf:
Content.AppendFormat("lret ");
size = -1;
break;
case UdMnemonicCode.UD_Idb:
Content.AppendFormat(".byte 0x{0:x2}", u.Operands[0].LvalByte);
return;
case UdMnemonicCode.UD_Ijmp:
case UdMnemonicCode.UD_Icall:
if (u.BrFar != 0)
{
Content.AppendFormat("l");
size = -1;
}
if (u.Operands[0].Type == UdType.UD_OP_REG)
{
star = true;
}
this.Content.AppendFormat("{0}", Udis86.UdLookupMnemonic(u.Mnemonic));
break;
case UdMnemonicCode.UD_Ibound:
case UdMnemonicCode.UD_Ienter:
if (u.Operands.Length > 0 && u.Operands[0].Type != UdType.UD_NONE)
{
this.Gen_operand(u, u.Operands[0]);
}
if (u.Operands.Length > 1 && u.Operands[1].Type != UdType.UD_NONE)
{
this.Content.AppendFormat(",");
this.Gen_operand(u, u.Operands[1]);
}
return;
default:
this.Content.AppendFormat("{0}", Udis86.UdLookupMnemonic(u.Mnemonic));
break;
}
if (size != -1 && u.Operands.Length > 0 && u.Operands.Any(o => o.Type == UdType.UD_OP_MEM))
{
size = u.Operands[0].Size;
}
if (size == 8)
{
Content.AppendFormat("b");
}
else if (size == 16)
{
Content.AppendFormat("w");
}
else if (size == 32)
{
Content.AppendFormat("l");
}
else if (size == 64)
{
Content.AppendFormat("q");
}
else if (size == 80)
{
Content.AppendFormat("t");
}
if (star)
{
Content.AppendFormat(" *");
}
else
{
Content.AppendFormat(" ");
}
if (u.Operands.Length > 3 && u.Operands[3].Type != UdType.UD_NONE)
{
this.Gen_operand(u, u.Operands[3]);
Content.AppendFormat(", ");
}
if (u.Operands.Length > 2 && u.Operands[2].Type != UdType.UD_NONE)
{
this.Gen_operand(u, u.Operands[2]);
Content.AppendFormat(", ");
}
if (u.Operands.Length > 1 && u.Operands[1].Type != UdType.UD_NONE)
{
this.Gen_operand(u, u.Operands[1]);
this.Content.AppendFormat(", ");
}
if (u.Operands.Length > 0 && u.Operands[0].Type != UdType.UD_NONE)
{
this.Gen_operand(u, u.Operands[0]);
}
}
internal Instruction(ref Udis86.ud u, bool keepBinary)
{
this.Offset = u.insn_offset;
this.PC = u.pc;
this.Mnemonic = u.mnemonic;
// Add operands
List<Operand> operands = new List<Operand>(4);
if (u.operand[0].type != Udis86.ud_type.UD_NONE)
{
operands.Add(new Operand(u.operand[0]));
if (u.operand[1].type != Udis86.ud_type.UD_NONE)
{
operands.Add(new Operand(u.operand[1]));
if (u.operand[2].type != Udis86.ud_type.UD_NONE)
{
operands.Add(new Operand(u.operand[2]));
if (u.operand[3].type != Udis86.ud_type.UD_NONE) operands.Add(new Operand(u.operand[3]));
}
}
}
this.Operands = operands.ToArray();
this.Length = u.inp_ctr;
// Copy the instruction bytes
if (keepBinary)
{
this.Bytes = AssemblyCode.CopyToBytes(u.inp_buf, u.inp_buf_index - this.Length, this.Length);
}
if (u.error > 0)
{
this.Error = true;
this.ErrorMessage = u.errorMessage;
}
else if (this.Mnemonic == Udis86.ud_mnemonic_code.UD_Iinvalid)
{
this.Error = true;
this.ErrorMessage = "Invalid instruction";
}
this.itab_entry = u.itab_entry;
this.dis_mode = (ArchitectureMode) u.dis_mode;
this.pfx_rex = u.pfx_rex;
this.pfx_seg = u.pfx_seg;
this.pfx_opr = u.pfx_opr;
this.pfx_adr = u.pfx_adr;
this.pfx_lock = u.pfx_lock;
this.pfx_str = u.pfx_str;
this.pfx_rep = u.pfx_rep;
this.pfx_repe = u.pfx_repe;
this.pfx_repne = u.pfx_repne;
this.opr_mode = u.opr_mode;
this.adr_mode = u.adr_mode;
this.br_far = u.br_far;
this.br_near = u.br_near;
this.have_modrm = u.have_modrm;
this.modrm = u.modrm;
this.primary_opcode = u.primary_opcode;
}
/// <summary>
/// Translates to intel syntax.
/// </summary>
/// <param name="insn">TODO insn.</param>
private void UdTranslateIntel(Instruction insn)
{
/* check if P_OSO prefix is used */
if (BitOps.P_OSO(insn.ItabEntry.Prefix) == 0 && insn.PfxOpr > 0)
{
switch (insn.DisMode)
{
case ArchitectureMode.x86_16:
Content.AppendFormat("o32 ");
break;
case ArchitectureMode.x86_32:
case ArchitectureMode.x86_64:
Content.AppendFormat("o16 ");
break;
}
}
// check if P_ASO prefix was used
if (BitOps.P_ASO(insn.ItabEntry.Prefix) == 0 && insn.PfxAdr > 0)
{
switch (insn.DisMode)
{
case ArchitectureMode.x86_16:
this.Content.AppendFormat("a32 ");
break;
case ArchitectureMode.x86_32:
this.Content.AppendFormat("a16 ");
break;
case ArchitectureMode.x86_64:
this.Content.AppendFormat("a32 ");
break;
}
}
if (insn.PfxSeg > 0 &&
insn.Operands[0].Type != UdType.UD_OP_MEM &&
insn.Operands[1].Type != UdType.UD_OP_MEM)
{
this.Content.AppendFormat("{0} ", this.RegisterForType((UdType)insn.PfxSeg));
}
if (insn.PfxLock > 0)
{
this.Content.AppendFormat("lock ");
}
if (insn.PfxRep > 0)
{
this.Content.AppendFormat("rep ");
}
else if (insn.PfxRepe > 0)
{
this.Content.AppendFormat("repe ");
}
else if (insn.PfxRepne > 0)
{
this.Content.AppendFormat("repne ");
}
// Print the instruction mnemonic
this.Content.AppendFormat("{0}", SharpDisasm.Udis86.Udis86.UdLookupMnemonic(insn.Mnemonic));
if (insn.Operands.Length > 0 && insn.Operands[0].Type != UdType.UD_NONE)
{
Int32 cast = 0;
Content.AppendFormat(" ");
if (insn.Operands[0].Type == UdType.UD_OP_MEM)
{
if ((insn.Operands.Length > 1 &&
(insn.Operands[1].Type == UdType.UD_OP_IMM ||
insn.Operands[1].Type == UdType.UD_OP_CONST)) ||
insn.Operands.Length < 2 || ////insn.Operands[1].Type == ud_type.UD_NONE) ||
(insn.Operands.Length > 1 &&
insn.Operands[0].Size != insn.Operands[1].Size &&
insn.Operands[1].Type != UdType.UD_OP_REG))
{
cast = 1;
}
else if (insn.Operands[1].Type == UdType.UD_OP_REG &&
insn.Operands[1].Base == UdType.UD_R_CL)
{
switch (insn.Mnemonic)
{
case UdMnemonicCode.UD_Ircl:
case UdMnemonicCode.UD_Irol:
case UdMnemonicCode.UD_Iror:
case UdMnemonicCode.UD_Ircr:
case UdMnemonicCode.UD_Ishl:
case UdMnemonicCode.UD_Ishr:
case UdMnemonicCode.UD_Isar:
cast = 1;
break;
default:
break;
}
}
}
this.Gen_operand(insn, insn.Operands[0], cast);
}
if (insn.Operands.Length > 1 && insn.Operands[1].Type != UdType.UD_NONE)
{
Int32 cast = 0;
Content.AppendFormat(", ");
if (insn.Operands[1].Type == UdType.UD_OP_MEM &&
insn.Operands[0].Size != insn.Operands[1].Size &&
!Udis86.UdOprIsSeg(insn.Operands[0].UdOperand))
{
cast = 1;
}
this.Gen_operand(insn, insn.Operands[1], cast);
}
if (insn.Operands.Length > 2 && insn.Operands[1].Type != UdType.UD_NONE)
{
Int32 cast = 0;
Content.AppendFormat(", ");
if (insn.Operands[2].Type == UdType.UD_OP_MEM && insn.Operands[2].Size != insn.Operands[1].Size)
{
cast = 1;
}
this.Gen_operand(insn, insn.Operands[2], cast);
}
if (insn.Operands.Length > 3 && insn.Operands[3].Type != UdType.UD_NONE)
{
Content.AppendFormat(", ");
this.Gen_operand(insn, insn.Operands[3], 0);
}
}