public byte[] this[uint index, int size]
{
get
{
uint nonCachedIndex = TLB.TranslateAddress(index) & 0x1FFFFFFF;
byte[] result = new byte[size];
MemEntry Entry = GetEntry(nonCachedIndex);
if (Entry.ReadArray == null)
{
throw new Common.Exceptions.MemoryProtectionViolation($"Memory at \"0x{index:x8}\" is not readable.");
}
Buffer.BlockCopy(Entry.ReadArray, (int)(nonCachedIndex - Entry.StartAddress), result, 0, size);
Entry.ReadEvent?.Invoke();
return(result);
}
set
{
uint nonCachedIndex = TLB.TranslateAddress(index) & 0x1FFFFFFF;
MemEntry Entry = GetEntry(nonCachedIndex);
if (Entry.WriteArray == null)
{
throw new Common.Exceptions.MemoryProtectionViolation($"Memory at \"0x{index:x8}\" is not writable.");
}
Buffer.BlockCopy(value, 0, Entry.WriteArray, (int)(nonCachedIndex - Entry.StartAddress), size);
Entry.WriteEvent?.Invoke();
}
}
private MemEntry GetEntry(uint index)
{
bool FoundEntry = false;
MemEntry Result = new MemEntry();
for (int i = 0; i < MemoryMap.Length; ++i)
{
MemEntry CurrentEntry = MemoryMap[i];
if (index < CurrentEntry.StartAddress || index > CurrentEntry.EndAddress)
{
continue;
}
FoundEntry = true;
Result = CurrentEntry;
break;
}
if (!FoundEntry)
{
throw new Common.Exceptions.InvalidOrUnimplementedMemoryMapException($"\"0x{index:x8}\" does not pertain to any mapped memory." +
$" PC: 0x{Registers.R4300.PC:x8}");
}
return(Result);
}
public byte this[uint index]
{
get
{
uint nonCachedIndex = TLB.TranslateAddress(index) & 0x1FFFFFFF;
MemEntry Entry = GetEntry(nonCachedIndex);
if (Entry.ReadArray == null)
{
throw new Common.Exceptions.MemoryProtectionViolation($"Memory at \"0x{index:x8}\" is not readable.");
}
return(Entry.ReadArray[nonCachedIndex - Entry.StartAddress]);
}
set
{
uint nonCachedIndex = TLB.TranslateAddress(index) & 0x1FFFFFFF;
MemEntry Entry = GetEntry(nonCachedIndex);
if (Entry.WriteArray == null)
{
throw new Common.Exceptions.MemoryProtectionViolation($"Memory at \"0x{index:x8}\" is not writable.");
}
Entry.WriteArray[nonCachedIndex - Entry.StartAddress] = value;
}
}
internal List <MemEntry> Read()
{
string filepath = Path.Join(InputPath, MemListFileName);
if (!File.Exists(filepath))
{
throw new BytecodeReaderException($"Memlist file not found at {filepath}");
}
using (BinaryReader reader = new BinaryReader(File.OpenRead(filepath)))
{
var memEntries = new List <MemEntry>();
var memEntry = new MemEntry();
while (memEntry.state != MemEntryState.END_OF_MEMLIST)
{
memEntry.state = reader.ReadByte();
memEntry.type = reader.ReadByte();
// skip the bufptr
reader.ReadUInt16BE();
memEntry.unk4 = reader.ReadUInt16BE();
memEntry.rankNum = reader.ReadByte();
memEntry.bankId = reader.ReadByte();
memEntry.bankOffset = reader.ReadUInt32BE();
memEntry.unkC = reader.ReadUInt16BE();
memEntry.packedSize = reader.ReadUInt16BE();
memEntry.unk10 = reader.ReadUInt16BE();
memEntry.size = reader.ReadUInt16BE();
memEntries.Add(memEntry);
}
return(memEntries);
}
}
