public override int GetHashCode()
{
unchecked
{
return((ProgramIdentifier.GetHashCode() * 397) ^ LineNumber);
}
}
internal void AddEntries(TestProgramInformation information)
{
foreach (var crcData in information.Crcs.Cast <CrcDataAdvanced>())
{
var programIdentifier = new ProgramIdentifier(crcData.Crc, crcData.CfgCrc);
_entries[programIdentifier] = information;
}
}
public void ProgramRomInformationBuilder_BuildWithId_ResultsInExpectedId()
{
var builder = CreateBuilderWithRequiredFields("Testing Id");
var expectedId = new ProgramIdentifier(4u, 8u);
var programRomInformation = builder.WithId(expectedId).Build();
Assert.Equal(expectedId, programRomInformation.Id);
}
public void ProgramIdentifier_ToString_ProducesCorrectString()
{
var dataPart = 0xFEDCBA98u;
var otherPart = 0x76543210u;
var expectedString = string.Format(CultureInfo.InvariantCulture, "{0:X8},{1:X8}", dataPart, otherPart);
var identifier = new ProgramIdentifier(dataPart, otherPart);
Assert.Equal(expectedString, identifier.ToString());
}
public void ProgramIdentifier_CreateWithDataCrc_CreatesProperIdentifier()
{
var dataPart = 0xFEDBADu;
var expectedId = ((ulong)dataPart) << 32;
var identifier = new ProgramIdentifier(dataPart);
Assert.Equal(dataPart, identifier.DataCrc);
Assert.Equal(0u, identifier.OtherData);
Assert.Equal(expectedId, identifier.Id);
}
public void ProgramIdentifier_GetHashcode_ProducesCorrectHash()
{
var dataPart = 0x123u;
var otherPart = 0x456u;
var identifier = new ProgramIdentifier(dataPart, otherPart);
var combinedParts = (((ulong)dataPart) << 32) | otherPart;
var expectedHash = combinedParts.GetHashCode();
Assert.Equal(expectedHash, identifier.GetHashCode());
}
public void ProgramIdentifier_ImplicitOperator_CreatesProperIdentifier()
{
var crc = 0x48736251u;
var expectedId = ((ulong)crc) << 32;
ProgramIdentifier identifier = crc;
Assert.Equal(crc, identifier.DataCrc);
Assert.Equal(0u, identifier.OtherData);
Assert.Equal(expectedId, identifier.Id);
}
public void ProgramIdentifier_CreateWithId_CreatesProperIdentifier()
{
var expectedId = 0x01234567FEDCBA98u;
var expectedData = (uint)(expectedId >> 32);
var expectedOtherData = (uint)(expectedId & 0xFFFFFFFF);
var identifier = new ProgramIdentifier(expectedId);
Assert.Equal(expectedData, identifier.DataCrc);
Assert.Equal(expectedOtherData, identifier.OtherData);
Assert.Equal(expectedId, identifier.Id);
}
public void ProgramIdentifier_CreateWithDataAndOtherCrcs_CreatesProperIdentifier()
{
var dataPart = 0xFEDCBA98u;
var otherPart = 0x76543210u;
var expectedId = (((ulong)dataPart) << 32) | otherPart;
var identifier = new ProgramIdentifier(dataPart, otherPart);
Assert.Equal(dataPart, identifier.DataCrc);
Assert.Equal(otherPart, identifier.OtherData);
Assert.Equal(expectedId, identifier.Id);
}
public void Ecs_IRomCompatibleWithEcsRom_IsTrue()
{
var ecs = new Ecs();
var programInformationTable = ProgramInformationTable.Initialize(Enumerable.Empty <ProgramInformationTableDescriptor>().ToArray());
var mindStrikeProgramId = new ProgramIdentifier(0x9D57498F);
var mindStrikeInfo = programInformationTable.FindProgram(mindStrikeProgramId);
Assert.NotNull(mindStrikeInfo);
var mindStrikeDescription = new ProgramDescription(mindStrikeProgramId.DataCrc, null, mindStrikeInfo);
Assert.True(ecs.IsRomCompatible(mindStrikeDescription));
}
/// <summary>
/// Checks if the given ROM's CRC data matches the given program identifier with selectable strictness. See remarks.
/// </summary>
/// <param name="rom">The ROM to check for a match.</param>
/// <param name="programIdentifier">The program identifier to match.</param>
/// <param name="cfgCrcMustMatch">If <c>true</c> and a .BIN format ROM is being checked, determines whether the CRC of the config file must match as well.</param>
/// <returns><c>true</c> if <paramref name="rom"/>'s CRC data matches the given <paramref name="programIdentifier"/>, <c>false</c> otherwise.</returns>
/// <remarks><para>For .BIN format ROMs, there is the possibility, depending on the value if <paramref name="cfgCrcMustMatch"/>, that a match is reported, even though
/// the .CFG file could have a profound impact on the actual ROM being used. The .CFG file can actually cause modifications to the ROM itself, or describe different
/// features in the ROM (e.g. different compatibility or metadata). While metadata and compatibility differences could be considered cosmetic only, they can affect
/// how the ROM is handled by hardware in the case of LTO Flash! for example. Most important of course is the matter of the memory map, RAM mappings, or actual
/// code modification (e.g. the patch for Dreadnaught Factor for PAL systems). That said, until .CFG CRC values are computed on a 'canonicalized' form of the .CFG
/// file, it is important to note that mere whitespace changes will cause .CFG mismatches, making it fragile to do full compares when working with database.</para>
/// <para>Similarly, when working with the .ROM format, it is important to note that at this time, the CRC is computed for the entire file, including metadata that
/// may be provided. This means that mismatches can occur because a documentation credit was modified in the metadata of one version of the file, even though
/// the executable ROM itself was not changed.</para>
/// <para>Finally, for the LUIGI format, there is an additional challenge. To this point, this ROM format is only used as the destination format for ROMs copied to
/// the LTO Flash! hardware, though the jzIntv emulator supports it as well. As such, it is more than a container format for .BIN or .ROM formats, as it is different
/// in several important ways. However, it has not yet (and possibly will never become) a target ROM format. It addresses some deficiencies in the original .ROM format
/// that parallel the limitations of the original Intellicart and CuttleCart 3 hardware. That said, in theory the LUIGI header's UID entry poses a challenge. If the
/// LUIGI file was created from a .ROM-format ROM, it is unambiguous. However, thereafter it is not clear if the file was created directly from the assembler, in which
/// case the UID contains an as-yet-to-be-defined strong hash of something, or wither it contains a pair of 32-bit CRC values, one from the .BIN file, the other from
/// the corresponding .CFG file. Given the nature of more modern Intellivision programs to commonly stray from the standard set of common .CFG files (and memory maps),
/// it will be an interesting challenge to distinguish a LUIGI created via bin2luigi from one created directly by the assembler. In such a case, most likely we'd want
/// to bump the version number of the LUIGI header and at least set a flag somewhere in the sea of bits that we swim through to figure out all these intricacies.</para></remarks>
public static bool MatchesProgramIdentifier(this IRom rom, ProgramIdentifier programIdentifier, bool cfgCrcMustMatch)
{
var match = false;
if (rom != null)
{
switch (rom.Format)
{
case RomFormat.Bin:
match = (programIdentifier.DataCrc == rom.Crc) && (!cfgCrcMustMatch || (programIdentifier.OtherData == rom.CfgCrc));
break;
case RomFormat.Rom:
case RomFormat.CuttleCart3:
case RomFormat.CuttleCart3Advanced:
match = programIdentifier.DataCrc == rom.Crc;
break;
case RomFormat.Luigi:
var luigiHeader = rom.GetLuigiHeader();
if (luigiHeader != null)
{
match = programIdentifier.Id == luigiHeader.Uid; // probably will never use this result, but...
if (luigiHeader.OriginalRomFormat == RomFormat.Bin)
{
match = (programIdentifier.DataCrc == luigiHeader.OriginalRomCrc32) && (!cfgCrcMustMatch || (programIdentifier.OtherData == luigiHeader.OriginalCfgCrc32));
}
else if (luigiHeader.OriginalRomFormat == RomFormat.Rom)
{
match = programIdentifier.DataCrc == luigiHeader.OriginalRomCrc32;
}
// else .. Should we throw here? This situation (as of 2. Sept. 2018) cannot exist.
}
break;
default:
throw new InvalidOperationException();
}
}
return(match);
}
public void MergedProgramInformationTable_FindRomWithProgramIdentifier_FindsInformationAsExpected()
{
var mergedInformationTable = new MergedProgramInformationTable();
var testProgramIdentifier = new ProgramIdentifier(0x123u, 0x456u);
var testProgramInformation = new TestProgramInformation()
{
Title = "Buffy Buckingham", Features = ProgramFeatures.GetUnrecognizedRomFeatures()
};
testProgramInformation.AddCrcs(3);
testProgramInformation.AddCrc(testProgramIdentifier.DataCrc, "Version 0", IncompatibilityFlags.Tutorvision, testProgramIdentifier.OtherData);
var table = new TestProgramInformationTable();
table.AddEntries(testProgramInformation);
mergedInformationTable.MergeTable(table);
var foundInformation = mergedInformationTable.FindProgram(testProgramIdentifier);
Assert.NotNull(foundInformation);
}
public IProgramInformation FindProgram(ProgramIdentifier programIdentifier)
{
var information = _entries.FirstOrDefault(e => e.Key == programIdentifier.DataCrc).Value;
return(information);
}
/// <inheritdoc />
public IProgramInformation FindProgram(ProgramIdentifier programIdentifier)
{
return(FindProgram(programIdentifier.DataCrc));
}
public void ProgramIdentifier_OperatorNotEqual_ComparesIdentifiersCorrectly(ProgramIdentifier lhs, ProgramIdentifier rhs, bool expectedEqual)
{
Assert.NotEqual(expectedEqual, lhs != rhs);
}
public void ProgramIdentifier_EqualsObject_ComparesAsExpected(ProgramIdentifier identifier, object other, bool expectedEqual)
{
Assert.Equal(expectedEqual, identifier.Equals(other));
}
