private bool LoadFile()
{
if (sourcepath != null)
{
if (File.Exists(sourcepath) == false)
{
//error code
this.error = new DisassemblerErrorInfo(0, AssemblerError.NOFILE);
//Console.Write("\r\nno file");
return(false);
}
else
{
StreamReader sr = new StreamReader(sourcepath);
string _line;
while ((_line = sr.ReadLine()) != null)
{
this.sourceString.Add(_line);
}
sr.Close();
return(true);
}
}
else
{
/* it's useless so far, just to fufill the return queset*/
if (sourceString != null)
{
return(true);
}
else
{
return(false);
}
}
}
private bool SetTag(bool isAlias = false)
{
for (int i = 0; i < codelist.Count; i++)
{
codelist[i].Alias = isAlias;
codelist[i].Validate();
if (codelist[i].Mnemonic == MIPS246.Core.DataStructure.Mnemonic.BEQ)
{
tag _tag = new tag();
_tag.Pos = Convert.ToInt32(codelist[i].Arg3) /*/4*/ + i;
if (_tag.Pos < 0 || _tag.Pos > codelist.Count)
{
/*error code*/
this.error = new DisassemblerErrorInfo(i, AssemblerError.WRONGTAG, "jump target OutOfBounds");
return(false);
}
_tag.Name = Convert.ToString(taglist.Count); //use counter as name
codelist[i].Arg3 = "tag" + _tag.Name;
taglist.Add(_tag);
}
else if (codelist[i].Mnemonic == MIPS246.Core.DataStructure.Mnemonic.BNE)
{
tag _tag = new tag();
_tag.Pos = Convert.ToInt32(codelist[i].Arg3) /*/ 4*/ + i;
if (_tag.Pos < 0 || _tag.Pos > codelist.Count)
{
/*error code*/
this.error = new DisassemblerErrorInfo(i, AssemblerError.WRONGTAG, "jump target OutOfBounds");
return(false);
}
_tag.Name = Convert.ToString(taglist.Count); //use counter as name
codelist[i].Arg3 = "tag" + _tag.Name;
taglist.Add(_tag);
}
else if (codelist[i].Mnemonic == MIPS246.Core.DataStructure.Mnemonic.J)
{
tag _tag = new tag();
_tag.Pos = Convert.ToInt32(codelist[i].Arg1) /*/ 4*/ + i;
if (_tag.Pos < 0 || _tag.Pos > codelist.Count)
{
/*error code*/
this.error = new DisassemblerErrorInfo(i, AssemblerError.WRONGTAG, "jump target OutOfBounds");
return(false);
}
_tag.Name = Convert.ToString(taglist.Count); //use counter as name
codelist[i].Arg1 = "tag" + _tag.Name;
taglist.Add(_tag);
}
else if (codelist[i].Mnemonic == MIPS246.Core.DataStructure.Mnemonic.JAL)
{
tag _tag = new tag();
_tag.Pos = Convert.ToInt32(codelist[i].Arg1) /*/ 4*/ + i;
if (_tag.Pos < 0 || _tag.Pos > codelist.Count)
{
/*error code*/
this.error = new DisassemblerErrorInfo(i, AssemblerError.WRONGTAG, "jump target OutOfBounds");
return(false);
}
_tag.Name = Convert.ToString(taglist.Count); //use counter as name
codelist[i].Arg1 = "tag" + _tag.Name;
taglist.Add(_tag);
}
else
{
}
}
return(true);
}
private bool StringToMachinecode()
{
for (int i = 0; i < sourceString.Count; i++)
{
BitArray _machinecode = new BitArray(32);
if (isHex == true)
{
if (sourceString[i].Length != 8)
{
/*error code*/
this.error = new DisassemblerErrorInfo(i, AssemblerError.WRONGFORM, "please check the length of code");
//Console.Write("\r\nhex length wrong");
return(false);
}
else
{
for (int j = 0; j < 8; j++)
{
#region case
switch (sourceString[i][j]) //get the char on j_th position
{
case '0':
_machinecode[j * 4] = false;
_machinecode[j * 4 + 1] = false;
_machinecode[j * 4 + 2] = false;
_machinecode[j * 4 + 3] = false;
break;
case '1':
_machinecode[j * 4] = false;
_machinecode[j * 4 + 1] = false;
_machinecode[j * 4 + 2] = false;
_machinecode[j * 4 + 3] = true;
break;
case '2':
_machinecode[j * 4] = false;
_machinecode[j * 4 + 1] = false;
_machinecode[j * 4 + 2] = true;
_machinecode[j * 4 + 3] = false;
break;
case '3':
_machinecode[j * 4] = false;
_machinecode[j * 4 + 1] = false;
_machinecode[j * 4 + 2] = true;
_machinecode[j * 4 + 3] = true;
break;
case '4':
_machinecode[j * 4] = false;
_machinecode[j * 4 + 1] = true;
_machinecode[j * 4 + 2] = false;
_machinecode[j * 4 + 3] = false;
break;
case '5':
_machinecode[j * 4] = false;
_machinecode[j * 4 + 1] = true;
_machinecode[j * 4 + 2] = false;
_machinecode[j * 4 + 3] = true;
break;
case '6':
_machinecode[j * 4] = false;
_machinecode[j * 4 + 1] = true;
_machinecode[j * 4 + 2] = true;
_machinecode[j * 4 + 3] = false;
break;
case '7':
_machinecode[j * 4] = false;
_machinecode[j * 4 + 1] = true;
_machinecode[j * 4 + 2] = true;
_machinecode[j * 4 + 3] = true;
break;
case '8':
_machinecode[j * 4] = true;
_machinecode[j * 4 + 1] = false;
_machinecode[j * 4 + 2] = false;
_machinecode[j * 4 + 3] = false;
break;
case '9':
_machinecode[j * 4] = true;
_machinecode[j * 4 + 1] = false;
_machinecode[j * 4 + 2] = false;
_machinecode[j * 4 + 3] = true;
break;
case 'a':
case 'A':
_machinecode[j * 4] = true;
_machinecode[j * 4 + 1] = false;
_machinecode[j * 4 + 2] = true;
_machinecode[j * 4 + 3] = false;
break;
case 'b':
case 'B':
_machinecode[j * 4] = true;
_machinecode[j * 4 + 1] = false;
_machinecode[j * 4 + 2] = true;
_machinecode[j * 4 + 3] = true;
break;
case 'c':
case 'C':
_machinecode[j * 4] = true;
_machinecode[j * 4 + 1] = true;
_machinecode[j * 4 + 2] = false;
_machinecode[j * 4 + 3] = false;
break;
case 'd':
case 'D':
_machinecode[j * 4] = true;
_machinecode[j * 4 + 1] = true;
_machinecode[j * 4 + 2] = false;
_machinecode[j * 4 + 3] = true;
break;
case 'e':
case 'E':
_machinecode[j * 4] = true;
_machinecode[j * 4 + 1] = true;
_machinecode[j * 4 + 2] = true;
_machinecode[j * 4 + 3] = false;
break;
case 'f':
case 'F':
_machinecode[j * 4] = true;
_machinecode[j * 4 + 1] = true;
_machinecode[j * 4 + 2] = true;
_machinecode[j * 4 + 3] = true;
break;
default:
/*error code*/
this.error = new DisassemblerErrorInfo(i, AssemblerError.WRONGFORM, "invalid character");
return(false);
}
#endregion
}
}
}
else
{
if (sourceString[i].Length != 32)
{
/*error code*/
this.error = new DisassemblerErrorInfo(i, AssemblerError.WRONGFORM, "please check the length of code");
//Console.Write("\r\nbinary length wrong");
return(false);
}
else
{
for (int j = 0; j < 32; j++)
{
if (sourceString[i][j] == '1')
{
_machinecode[j] = true;
}
else if (sourceString[i][j] == '0')
{
_machinecode[j] = false;
}
else
{
/*error code*/
this.error = new DisassemblerErrorInfo(i, AssemblerError.WRONGFORM, "invalid character");
return(false);
}
}
}
}
codelist.Add(new Instruction(_machinecode));
}
return(true);
}
private bool StringToMachinecode()
{
for (int i = 0; i < sourceString.Count; i++)
{
BitArray _machinecode = new BitArray(32);
if(isHex == true)
{
if(sourceString[i].Length != 8)
{
/*error code*/
this.error = new DisassemblerErrorInfo(i, AssemblerError.WRONGFORM, "please check the length of code");
//Console.Write("\r\nhex length wrong");
return false;
}
else
{
for(int j = 0; j<8; j++)
{
#region case
switch(sourceString[i][j]) //get the char on j_th position
{
case '0':
_machinecode[j*4] = false;
_machinecode[j*4+1] = false;
_machinecode[j*4+2] = false;
_machinecode[j*4+3] = false;
break;
case '1':
_machinecode[j*4] = false;
_machinecode[j*4+1] = false;
_machinecode[j*4+2] = false;
_machinecode[j*4+3] = true;
break;
case '2':
_machinecode[j*4] = false;
_machinecode[j*4+1] = false;
_machinecode[j*4+2] = true;
_machinecode[j*4+3] = false;
break;
case '3':
_machinecode[j*4] = false;
_machinecode[j*4+1] = false;
_machinecode[j*4+2] = true;
_machinecode[j*4+3] = true;
break;
case '4':
_machinecode[j*4] = false;
_machinecode[j*4+1] = true;
_machinecode[j*4+2] = false;
_machinecode[j*4+3] = false;
break;
case '5':
_machinecode[j*4] = false;
_machinecode[j*4+1] = true;
_machinecode[j*4+2] = false;
_machinecode[j*4+3] = true;
break;
case '6':
_machinecode[j*4] = false;
_machinecode[j*4+1] = true;
_machinecode[j*4+2] = true;
_machinecode[j*4+3] = false;
break;
case '7':
_machinecode[j*4] = false;
_machinecode[j*4+1] = true;
_machinecode[j*4+2] = true;
_machinecode[j*4+3] = true;
break;
case '8':
_machinecode[j*4] = true;
_machinecode[j*4+1] = false;
_machinecode[j*4+2] = false;
_machinecode[j*4+3] = false;
break;
case '9':
_machinecode[j*4] = true;
_machinecode[j*4+1] = false;
_machinecode[j*4+2] = false;
_machinecode[j*4+3] = true;
break;
case 'a':
case 'A':
_machinecode[j*4] = true;
_machinecode[j*4+1] = false;
_machinecode[j*4+2] = true;
_machinecode[j*4+3] = false;
break;
case 'b':
case 'B':
_machinecode[j*4] = true;
_machinecode[j*4+1] = false;
_machinecode[j*4+2] = true;
_machinecode[j*4+3] = true;
break;
case 'c':
case 'C':
_machinecode[j*4] = true;
_machinecode[j*4+1] = true;
_machinecode[j*4+2] = false;
_machinecode[j*4+3] = false;
break;
case 'd':
case 'D':
_machinecode[j*4] = true;
_machinecode[j*4+1] = true;
_machinecode[j*4+2] = false;
_machinecode[j*4+3] = true;
break;
case 'e':
case 'E':
_machinecode[j*4] = true;
_machinecode[j*4+1] = true;
_machinecode[j*4+2] = true;
_machinecode[j*4+3] = false;
break;
case 'f':
case 'F':
_machinecode[j*4] = true;
_machinecode[j*4+1] = true;
_machinecode[j*4+2] = true;
_machinecode[j*4+3] = true;
break;
default:
/*error code*/
this.error = new DisassemblerErrorInfo(i, AssemblerError.WRONGFORM, "invalid character");
return false;
}
#endregion
}
}
}
else
{
if(sourceString[i].Length != 32)
{
/*error code*/
this.error = new DisassemblerErrorInfo(i, AssemblerError.WRONGFORM, "please check the length of code");
//Console.Write("\r\nbinary length wrong");
return false;
}
else
{
for(int j = 0; j<32; j++)
{
if(sourceString[i][j] == '1')
{
_machinecode[j] = true;
}
else if (sourceString[i][j] == '0')
{
_machinecode[j] = false;
}
else
{
/*error code*/
this.error = new DisassemblerErrorInfo(i, AssemblerError.WRONGFORM, "invalid character");
return false;
}
}
}
}
codelist.Add(new Instruction(_machinecode));
}
return true;
}
private bool SetTag(bool isAlias = false)
{
for(int i = 0; i<codelist.Count; i++)
{
codelist[i].Alias = isAlias;
codelist[i].Validate();
if(codelist[i].Mnemonic == MIPS246.Core.DataStructure.Mnemonic.BEQ)
{
tag _tag = new tag();
_tag.Pos = Convert.ToInt32(codelist[i].Arg3)/*/4*/ + i;
if (_tag.Pos < 0 || _tag.Pos > codelist.Count)
{
/*error code*/
this.error = new DisassemblerErrorInfo(i, AssemblerError.WRONGTAG, "jump target OutOfBounds");
return false;
}
_tag.Name = Convert.ToString(taglist.Count); //use counter as name
codelist[i].Arg3 = "tag" + _tag.Name;
taglist.Add(_tag);
}
else if(codelist[i].Mnemonic == MIPS246.Core.DataStructure.Mnemonic.BNE)
{
tag _tag = new tag();
_tag.Pos = Convert.ToInt32(codelist[i].Arg3) /*/ 4*/ + i;
if (_tag.Pos < 0 || _tag.Pos > codelist.Count)
{
/*error code*/
this.error = new DisassemblerErrorInfo(i, AssemblerError.WRONGTAG, "jump target OutOfBounds");
return false;
}
_tag.Name = Convert.ToString(taglist.Count); //use counter as name
codelist[i].Arg3 = "tag" + _tag.Name;
taglist.Add(_tag);
}
else if(codelist[i].Mnemonic == MIPS246.Core.DataStructure.Mnemonic.J)
{
tag _tag = new tag();
_tag.Pos = Convert.ToInt32(codelist[i].Arg1) /*/ 4*/ + i;
if (_tag.Pos < 0 || _tag.Pos > codelist.Count)
{
/*error code*/
this.error = new DisassemblerErrorInfo(i, AssemblerError.WRONGTAG, "jump target OutOfBounds");
return false;
}
_tag.Name = Convert.ToString(taglist.Count); //use counter as name
codelist[i].Arg1 = "tag" + _tag.Name;
taglist.Add(_tag);
}
else if(codelist[i].Mnemonic == MIPS246.Core.DataStructure.Mnemonic.JAL)
{
tag _tag = new tag();
_tag.Pos = Convert.ToInt32(codelist[i].Arg1) /*/ 4*/ + i;
if (_tag.Pos < 0 || _tag.Pos > codelist.Count)
{
/*error code*/
this.error = new DisassemblerErrorInfo(i, AssemblerError.WRONGTAG, "jump target OutOfBounds");
return false;
}
_tag.Name = Convert.ToString(taglist.Count); //use counter as name
codelist[i].Arg1 = "tag" + _tag.Name;
taglist.Add(_tag);
}
else
{
}
}
return true;
}
private bool LoadFile()
{
if (sourcepath != null)
{
if (File.Exists(sourcepath) == false)
{
//error code
this.error = new DisassemblerErrorInfo(0, AssemblerError.NOFILE);
//Console.Write("\r\nno file");
return false;
}
else
{
StreamReader sr = new StreamReader(sourcepath);
string _line;
while ((_line = sr.ReadLine()) != null)
{
this.sourceString.Add(_line);
}
sr.Close();
return true;
}
}
else
{
/* it's useless so far, just to fufill the return queset*/
if (sourceString != null)
return true;
else
return false;
}
}
