public static UImageResult TryLoad(string fileName, out UImage uImage)
{
uImage = null;
if (new FileInfo(fileName).Length < 64)
{
return(UImageResult.NotUImage);
}
byte[] headerForCrc;
using (var reader = new BinaryReader(File.OpenRead(fileName)))
{
headerForCrc = reader.ReadBytes(64);
// we need to zero crc part
for (var i = 4; i < 8; i++)
{
headerForCrc[i] = 0;
}
}
using (var reader = new BinaryReader(File.OpenRead(fileName)))
{
var magic = reader.ReadUInt32BigEndian();
if (magic != Magic)
{
return(UImageResult.NotUImage);
}
var crc = reader.ReadUInt32BigEndian();
if (crc != GzipCrc32(headerForCrc))
{
return(UImageResult.BadChecksum);
}
reader.ReadBytes(22);
var imageType = (ImageType)reader.ReadByte();
if (!Enum.IsDefined(typeof(ImageType), imageType))
{
return(UImageResult.NotSupportedImageType);
}
// TODO: check CRC of the header
uImage = new UImage(fileName);
return(UImageResult.OK);
}
}
public static UImageResult TryLoad(string fileName, out UImage uImage)
{
uImage = null;
if(new FileInfo(fileName).Length < 64)
{
return UImageResult.NotUImage;
}
byte[] headerForCrc;
using(var reader = new BinaryReader(File.OpenRead(fileName)))
{
headerForCrc = reader.ReadBytes(64);
// we need to zero crc part
for(var i = 4; i < 8; i++)
{
headerForCrc[i] = 0;
}
}
using(var reader = new BinaryReader(File.OpenRead(fileName)))
{
var magic = reader.ReadUInt32BigEndian();
if(magic != Magic)
{
return UImageResult.NotUImage;
}
var crc = reader.ReadUInt32BigEndian();
if(crc != GzipCrc32(headerForCrc))
{
return UImageResult.BadChecksum;
}
reader.ReadBytes(22);
var imageType = (ImageType)reader.ReadByte();
if(!Enum.IsDefined(typeof(ImageType), imageType))
{
return UImageResult.NotSupportedImageType;
}
// TODO: check CRC of the header
uImage = new UImage(fileName);
return UImageResult.OK;
}
}
void IControllableCPU.InitFromUImage(UImage uImage)
{
// do nothing
}
public virtual void InitFromUImage(UImage uImage)
{
this.Log(LogLevel.Info, "Setting PC value to 0x{0:X}.", uImage.EntryPoint);
SetPCFromEntryPoint(uImage.EntryPoint);
}
public override void InitFromUImage(UImage uImage)
{
this.Log(LogLevel.Warning, "PowerPC VLE mode not implemented for uImage loading.");
base.InitFromUImage(uImage);
}
