public static void RunTests(StreamWriter log)
{
log.WriteLine("Test: Starting RAM unit tests");
ramSim tram = new ramSim(32768);
log.WriteLine("Test: Read/Write Byte");
byte byteRes = tram.ReadByte(0);
Debug.Assert(byteRes == 0);
tram.WriteByte(0, 0xee);
byteRes = tram.ReadByte(0);
Debug.Assert(byteRes == 0xee);
tram.CLEAR();
log.WriteLine("Test: Read/Write HalfWord");
short shortRes = tram.ReadHalfWord(0);
Debug.Assert(shortRes == 0);
tram.WriteHalfWord(0, 0xeef);
shortRes = tram.ReadHalfWord(0);
Debug.Assert(shortRes == 0xeef);
tram.CLEAR();
log.WriteLine("Test: Read/Write Word");
int intRes = tram.ReadWord(0);
Debug.Assert(intRes == 0);
tram.WriteWord(0, 0xabcdef);
intRes = tram.ReadWord(0);
Debug.Assert(intRes == 0xabcdef);
tram.CLEAR();
log.WriteLine("Test: Set/Test Flag");
bool flagRes = tram.TestFlag(0, 4);
Debug.Assert(flagRes == false);
tram.SetFlag(0, 4, true);
flagRes = tram.TestFlag(0, 4);
Debug.Assert(flagRes == true);
flagRes = tram.TestFlag(0, 3);
Debug.Assert(flagRes == false);
log.WriteLine("Test: All Ram Tests passed\n");
tram.CLEAR();
}
public static void RunTests(StreamWriter log)
{
log.WriteLine("Test: Starting ArmSim unit tests");
ELFReader e = new ELFReader();
log.WriteLine("Test: Testing Hash of test1.exe");
byte[] elfArray = File.ReadAllBytes("test1.exe");
e.ReadHeader(elfArray);
ramSim ram = new ramSim(32768);
armsim.writeElfToRam(e, elfArray, ref ram);
string resultHash = ram.getHash();
string hash = "3500a8bef72dfed358b25b61b7602cf1";
Debug.Assert(hash.ToUpper() == resultHash);
ram.CLEAR();
log.WriteLine("Test: Testing Hash of test2.exe");
elfArray = File.ReadAllBytes("test2.exe");
e.ReadHeader(elfArray);
armsim.writeElfToRam(e, elfArray, ref ram);
resultHash = ram.getHash();
hash = "0a81d8b63d44a192e5f9f52980f2792e";
Debug.Assert(hash.ToUpper() == resultHash);
ram.CLEAR();
log.WriteLine("Test: Testing Hash of test3.exe");
elfArray = File.ReadAllBytes("test3.exe");
e.ReadHeader(elfArray);
armsim.writeElfToRam(e, elfArray, ref ram);
resultHash = ram.getHash();
hash = "977159b662ac4e450ed62063fba27029";
Debug.Assert(hash.ToUpper() == resultHash);
log.WriteLine("Test: All Hashes correct\n");
}
/*
*
* Unused might be good in the future
public static byte[] stringToByteArray(string input){
byte[] bA = new byte[input.Length * sizeof(char)];
char[] inputArray = input.ToCharArray ();
System.Buffer.BlockCopy(inputArray, 0, bA, 0, bA.Length);
return bA;
}
*/
public static int run(OptionParser options)
{
try
{
log = new StreamWriter("log.txt");
log.WriteLine("Log: Start");
if (options.getTest())
{
TestRam.RunTests(log);
TestArmSim.RunTests(log);
}
log.WriteLine("Log: MemSize " + options.getMemSize());
log.WriteLine("Log: File " + options.getFile());
log.WriteLine("Log: Little Endian " + BitConverter.IsLittleEndian);
ELFReader e = new ELFReader();
byte[] elfArray = File.ReadAllBytes(options.getFile());
e.ReadHeader(elfArray);
log.WriteLine("ELF: Header Position " + e.elfHeader.e_phoff);
log.WriteLine("ELF: Header Size " + e.elfHeader.e_ehsize);
log.WriteLine("ELF: Entry Position " + e.elfHeader.e_entry.ToString("X4"));
log.WriteLine("ELF: Number of program headers " + e.elfHeader.e_phnum);
for (int i = 1; i <= e.elfHeader.e_phnum; i++)
{
log.WriteLine("ELF: Program Header {0}, Offset = {1}, Size = {2}",
i,
e.elfHeader.e_phoff,
e.elfHeader.e_phentsize);
}
//ignore the entry point for a loader
//its for (executing)going into the ram after it's loaded
ramSim ram = new ramSim(options.getMemSize());
writeElfToRam(e, elfArray, ref ram);
log.WriteLine("Log: Ram Hash " + ram.getHash());
printArray(ram.getArray());
}
catch
{
log.WriteLine("Log: Something went wrong");
log.Close();
return -1;
}
//all is good in the world,the sky is blue, the tank is clean...THE TANK IS CLEAN!!
log.WriteLine("Log: Program Finished");
log.WriteLine("-----------------------------");
log.Close();
return 0;
}
public static void writeElfToRam(ELFReader e, byte[] elfArray, ref ramSim ram)
{
log.WriteLine("RAM: Size {0}", ram.getSize());
for (int prog = 0; prog < e.elfHeader.e_phnum; prog++)
{
int ramAddress = e.elfphs[prog].p_vaddr;
log.WriteLine("RAM: Writing to {0} ", ramAddress);
int elfOffSet = (int)e.elfphs[prog].p_offset;
log.WriteLine("ELF: Reading from {0}", e.elfphs[prog].p_offset);
log.WriteLine("ELF: Size of Segment {0}", e.elfphs[prog].p_filesz);
int ii = ramAddress;
int j = elfOffSet;
for (; j < elfArray.Length && ii < e.elfphs[prog].p_filesz + ramAddress; ii++, j++)
{
ram.WriteByte(ii, elfArray[j]);
}
}
}