private void memindex_emit(BinaryWriter writer, Byte r, X86Register32 basereg, Int32 disp, X86Register32 indexreg, Byte shift)
{
if (basereg == X86Register32.None)
{
address_byte(writer, 0, (byte)r, 4);
address_byte(writer, (byte)shift, (byte)indexreg, 5);
writer.Write((Int32)disp);
}
else if (disp == 0 && basereg == X86Register32.EBP)
{
address_byte(writer, 0, (byte)r, 4);
address_byte(writer, (byte)shift, (byte)indexreg, (byte)basereg);
}
else if (X86Writer.is_imm8(disp))
{
address_byte(writer, 1, (byte)r, 4);
address_byte(writer, (byte)shift, (byte)indexreg, (byte)basereg);
writer.Write((Byte)disp);
}
else
{
address_byte(writer, 2, (byte)r, 4);
address_byte(writer, (byte)shift, (byte)indexreg, 5);
writer.Write((Int32)disp);
}
}
internal static byte[] GetAsmBytes(IntPtr address, Action <X86Writer> writeAction)
{
//write asm to memory stream
MemoryStream stream = new MemoryStream();
X86Writer writer = new X86Writer(stream, address);
writeAction.Invoke(writer);
return(stream.ToArray());
}
private void membase_emit(BinaryWriter writer, Byte r, X86Register32 basereg, Int32 disp)
{
do
{
if ((basereg) == X86Register32.ESP)
{
if ((disp) == 0)
{
address_byte(writer, 0, (byte)r, (byte)X86Register32.ESP);
address_byte(writer, 0, (byte)X86Register32.ESP, (byte)X86Register32.ESP);
}
else if (X86Writer.is_imm8(disp))
{
address_byte(writer, 1, (byte)r, (byte)X86Register32.ESP);
address_byte(writer, 0, (byte)X86Register32.ESP, (byte)X86Register32.ESP);
writer.Write((byte)(disp));
}
else
{
address_byte(writer, 2, (byte)r, (byte)X86Register32.ESP);
address_byte(writer, 0, (byte)X86Register32.ESP, (byte)X86Register32.ESP);
writer.Write(disp);
}
break;
}
else if (disp == 0 && basereg != X86Register32.EBP)
{
address_byte(writer, 0, (byte)r, (byte)basereg);
}
else if (X86Writer.is_imm8(disp))
{
address_byte(writer, 1, (byte)r, (byte)basereg);
writer.Write((byte)(disp));
}
else
{
address_byte(writer, 2, (byte)r, (byte)basereg);
writer.Write(disp);
}
} while (false);
}
internal X86Label(X86Writer writer, IntPtr position)
{
this.writer = writer;
mark = position;
}
internal X86Label(X86Writer writer)
{
this.writer = writer;
}