/// <summary>
/// 将编译好的启动文件boot.bin按规定写入磁盘
/// </summary>
public void WriteBootBlock()
{
int bootSize = MachinePara.Boot_Size * MachinePara.Block_Size;
byte[] writeTo = new byte[bootSize];
//读取boot.bin
_bootFile.OpenFile();
_bootFile.SeekFilePosition(0, System.IO.SeekOrigin.Begin);
_bootFile.ReadFile(ref writeTo, 0, 512);
_bootFile.CloseFile();
//写入c.img
_diskFile.OpenFile();
_diskFile.SeekFilePosition(0, System.IO.SeekOrigin.Begin);
_diskFile.WriteFile(ref writeTo, 0, bootSize);
_diskFile.CloseFile();
}
/// <summary>
/// 写入文件项
/// </summary>
private void WriteFileItem()
{
int blockNum, i;
byte[] readFrom = new byte[512];
int fileLength = (int)_origFile.ReturnFileLength();
blockNum = fileLength / 512 + ((fileLength % 512 == 0) ? 0 : 1);
_origFile.SeekFilePosition(0, System.IO.SeekOrigin.Begin);
for (i = 0; i < blockNum - 1; ++i)
{
_origFile.ReadFile(ref readFrom, 0, 512);
WriteStream(readFrom, i * 512, 512, _fileInode);
}
_origFile.ReadFile(ref readFrom, 0, _fileInode._i_size % 512);
WriteStream(readFrom, i * 512, _fileInode._i_size % 512, _fileInode);
}
/// <summary>
/// 将编译好的内核kernel.bin文件按规定写入磁盘
/// </summary>
public void WriteKernelBlock()
{
_kernelFile.OpenFile();
int kernelFileLength = (int)_kernelFile.ReturnFileLength();
byte[] writeTo;
writeTo = new byte[kernelFileLength];
//读出kernel.bin文件的内容
_kernelFile.SeekFilePosition(0, System.IO.SeekOrigin.Begin);
_kernelFile.ReadFile(ref writeTo, 0, kernelFileLength);
_kernelFile.CloseFile();
//将kernel.bin的内容写入c.img
_diskFile.OpenFile();
_diskFile.SeekFilePosition(1 * 512, System.IO.SeekOrigin.Begin);
_diskFile.WriteFile(ref writeTo, 0, kernelFileLength);
_diskFile.CloseFile();
}