public static bool DecomposeTest3()
{
byte[] testCode =
{
0x8B, 0x89, 0xC8, 0x02, 0x00, 0x00, 0x8B, 0x51, 0x64, 0xF3, 0x0F, 0x10, 0x4A, 0x64, 0x0F, 0x2F, 0xC8,
0x8B, 0x86, 0x44, 0x04, 0x00, 0x00, 0xF3, 0x0F, 0x10, 0x88, 0x34, 0x02, 0x00, 0x00, 0xF3, 0x0F, 0x5C,
0xC1, 0xF3, 0x0F, 0x11, 0x44, 0x24, 0x18, 0x8B, 0x56, 0x60, 0x8B, 0x46, 0x64
};
string expectedOutput =
"mov ecx, [ecx+0x2c8]" +
"mov edx, [ecx+0x64]" +
"movss xmm1, [edx+0x64]" +
"comiss xmm1, xmm0" +
"mov eax, [esi+0x444]" +
"movss xmm1, [eax+0x234]" +
"subss xmm0, xmm1" +
"movss [esp+0x18], xmm0" +
"mov edx, [esi+0x60]" +
"mov eax, [esi+0x64]";
Distorm.DInst[] insts = Distorm.Decompose(testCode, 0, Distorm.DecodeType.Decode32Bits);
string actualOutput = string.Join(string.Empty, insts.Select(x => x.ToString()));
return(expectedOutput.Equals(actualOutput));
}
public bool Disassemble(Distorm.DecodeType decodeType)
{
if (this.Data.Length == 0)
{
return(false);
}
if (this.InstructionsDisassembled.Count != 0)
{
this.InstructionsDisassembled = Distorm.Disassemble(this.Data, (ulong)Address.ToInt64(), decodeType);
if (this.InstructionsDisassembled.Count == 0)
{
return(false);
}
}
if (this.InstructionsDecomposed.Length != 0)
{
this.InstructionsDecomposed = Distorm.Decompose(this.Data, (ulong)Address.ToInt64(), decodeType);
if (this.InstructionsDecomposed.Length == 0)
{
return(false);
}
}
return(true);
}
public static bool TestInput(byte[] input, string expectedOutput)
{
Distorm.DInst[] insts = Distorm.Decompose(input);
if (insts.Length != 1)
{
return(false);
}
return(insts[0].ToString().Equals(expectedOutput));
}
/// <summary>
/// Tests the DistormSimple.Decompose() function, but with an incomplete code buffer. This assumes that the
/// DistormSimple.Decompose() function works properly with a properly made code buffer.
/// </summary>
/// <returns>Returns true if the test passed.</returns>
public static bool DecomposeWrapperIncompleteCodeTest()
{
byte[] incompleteCode = new byte[Program.code.Length];
Array.Copy(code, incompleteCode, incompleteCode.Length - 1);
// Set the last byte to the first part of a "mov ebp, esp" instruction.
incompleteCode[incompleteCode.Length - 1] = 0x8b;
Distorm.DInst[] insts = Distorm.Decompose(incompleteCode);
if (insts.Length < 6)
{
return(false);
}
else if (insts[5].InstructionType != Distorm.InstructionType.UNDEFINED)
{
return(false);
}
return(true);
}
/// <summary>
/// Tests the DistormSimple.Decompose() function.
/// </summary>
/// <returns>Returns true if the test passed.</returns>
public static bool DecomposeWrapperTest()
{
Distorm.DInst[] result = Distorm.Decompose(Program.code);
return(Program.VerifyDecomposition(result));
}
