ShuriZma
/
BizHawk
mirror of https://github.com/TASEmulators/BizHawk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

ZXHawk: fixed edge-case tzx tape image parsing exceptions (red heat, live and let die, etc.) - #1158

This commit is contained in:
Asnivor 2018-05-03 23:09:39 +01:00
parent e4275ec777
commit 41f1058469
1 changed files with 72 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

57
BizHawk.Emulation.Cores/Computers/SinclairSpectrum/Media/Tape/TzxConverter.cs
View File

@ -1242,7 +1242,7 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
t.DataPeriods = new List<int>();
t.BlockDescription = BlockType.Archive_Info;
int blockLen = GetWordValue(data, 0);
int blockLen = GetWordValue(data, _position);
_position += 2;
int stringCount = data[_position++];
@ -1591,7 +1591,58 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
// dont get description info for Pure Data Blocks
if (dataBlockType != DataBlockType.Pure)
{
if (blockdata[0] == 0x00 && blockSize == 19)
{
string fileName = Encoding.ASCII.GetString(blockdata.Skip(2).Take(10).ToArray()).Trim();
string type = "Unknown Type";
StringBuilder sb = new StringBuilder();
var param1 = GetWordValue(blockdata, 12);
var param2 = GetWordValue(blockdata, 14);
// header block - examine first byte of header
if (blockdata[1] == 0)
{
type = "Program";
sb.Append(type + ": ");
sb.Append(fileName + " ");
}
else if (blockdata[1] == 1)
{
type = "NumArray";
sb.Append(type + ": ");
sb.Append(fileName + " ");
}
else if (blockdata[1] == 2)
{
type = "CharArray";
sb.Append(type + ": ");
sb.Append(fileName + " ");
}
else if (blockdata[1] == 3)
{
type = "Code";
sb.Append(type + ": ");
sb.Append(fileName + " ");
}
}
else if (blockdata[0] == 0xff)
{
// data block
description = "Data Block " + (blockSize - 2) + "bytes";
block.AddMetaData(BlockDescriptorTitle.Data_Bytes, (blockSize - 2).ToString() + " Bytes");
}
else
{
// some other type (turbo data etc..)
description = string.Format("#{0} block, {1} bytes", blockdata[0].ToString("X2"), blockSize);
//description += string.Format(", crc {0}", ((crc != 0) ? string.Format("bad (#{0:X2}!=#{1:X2})", crcFile, crcValue) : "ok"));
block.AddMetaData(BlockDescriptorTitle.Undefined, description);
}
/*
if (blockdata[0] == 0x00 && blockSize == 19 && (blockdata[1] == 0x00) || (blockdata[1] == 3 && blockdata.Length > 3))
{
if (dataBlockType != DataBlockType.Turbo)
{
// This is the program header
string fileName = Encoding.ASCII.GetString(blockdata.Skip(2).Take(10).ToArray()).Trim();
@ -1617,11 +1668,12 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
sb.Append(GetWordValue(blockdata, 12));
description = sb.ToString();
}
}
else if (blockdata[0] == 0xFF)
{
// this is a data block
description = "Data Block " + (blockSize - 2) + "bytes";
block.AddMetaData(BlockDescriptorTitle.Data_Bytes, (blockSize).ToString() + " Bytes");
block.AddMetaData(BlockDescriptorTitle.Data_Bytes, (blockSize - 2).ToString() + " Bytes");
}
else
{
@ -1630,6 +1682,7 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
//description += string.Format(", crc {0}", ((crc != 0) ? string.Format("bad (#{0:X2}!=#{1:X2})", crcFile, crcValue) : "ok"));
block.AddMetaData(BlockDescriptorTitle.Undefined, description);
}
*/
}
// update metadata