public void LoadPrograme(string programeFilePath)
{
instructions.Clear();
//get programe start address(default:1024)
int programeStartAddress = 0;
try
{
programeStartAddress = Convert.ToInt32(ProgrameStartAddressTextBox.Text);
if (programeStartAddress % 4 != 0)
{
programeStartAddress = programeStartAddress - programeStartAddress % 4;
ProgrameStartAddressTextBox.Text = programeStartAddress.ToString();
System.Windows.MessageBox.Show("代码段导入首地址必须为4的倍数！已自动修改为不大于输入地址的最大的4的倍数！", "提示", MessageBoxButton.OK, MessageBoxImage.Warning);
}
}
catch (Exception ex)
{
System.Windows.MessageBox.Show("代码段导入首地址出错！请检查是否有效！\n详细信息：" + ex.Message, "警告", MessageBoxButton.OK, MessageBoxImage.Error);
ProgrameStartAddressTextBox.Text = "1024";
return;
}
//initialize PC
registers[32].Value = (uint)programeStartAddress;
//save programe into address begin from programeStartAddress
FileStream programeFile;
byte[] programeFileBytes;
string programeFileContent;
try
{
programeFile = new FileStream(programeFilePath, FileMode.Open, FileAccess.Read);
programeFileBytes = new byte[programeFile.Length];
programeFile.Read(programeFileBytes, 0, (int)programeFile.Length);
programeFileContent = Encoding.Default.GetString(programeFileBytes);
//ignore annotation
string pattern = @"(/\*)((.|\n)*?)(\*/)";
Regex rgx = new Regex(pattern);
programeFileContent = rgx.Replace(programeFileContent, " ");
int count = 0;
StringBuilder tmpSB = new StringBuilder();
foreach (var item in programeFileContent)
{
if (item >= '0' && item <= '1')
{
tmpSB.Append(item);
count++;
if (count == 32)
{
Instruction instruction = new Instruction();
instruction.MachineCode = ConvertFromBinaryStringToUInt(tmpSB.ToString());
instruction.AssemblyCode = Decode(instruction.MachineCode);
instruction.Address = programeStartAddress;
instructions.Add(instruction);
ram.Set4Bit(programeStartAddress, instruction.MachineCode);
programeStartAddress += 4;
count = 0;
tmpSB.Clear();
}
}
}
}
catch (Exception ex)
{
System.Windows.MessageBox.Show("加载程序文件出错！请检查文件是否有效！\n详细信息：" + ex.Message, "警告", MessageBoxButton.OK, MessageBoxImage.Error);
ProgrameFilePathTextBox.Text = "";
return;
}
}
