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Code Issues Releases Activity

Stop memory modification check when a invalid address is found

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This commit is contained in:
gdkchan 2019-12-24 22:43:47 -03:00 committed by Thog
parent a718b60d06
commit 6cf9a04d98
1 changed files with 20 additions and 19 deletions
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39
ARMeilleure/Memory/MemoryManager.cs
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@ -268,33 +268,34 @@ namespace ARMeilleure.Memory
while (address < endAddress)
{
if (IsValidPosition((long)address))
// If the address is invalid, we stop and consider all the remaining memory
// as not modified (since the address is invalid, we can't check, and technically
// the memory doesn't exist).
if (!IsValidPosition((long)address))
{
byte* ptr = ((byte**)_pageTable)[address >> PageBits];
break;
}
ulong ptrUlong = (ulong)ptr;
byte* ptr = ((byte**)_pageTable)[address >> PageBits];
if ((ptrUlong & idMask) == 0)
{
// Modified.
currSize += PageSize;
ulong ptrUlong = (ulong)ptr;
SetPtEntryFlag((long)address, (long)idMask);
}
else
{
if (currSize != 0)
{
ranges.Add((currAddr, currSize));
}
if ((ptrUlong & idMask) == 0)
{
// Modified.
currSize += PageSize;
currAddr = address + PageSize;
currSize = 0;
}
SetPtEntryFlag((long)address, (long)idMask);
}
else
{
currSize += PageSize;
if (currSize != 0)
{
ranges.Add((currAddr, currSize));
}
currAddr = address + PageSize;
currSize = 0;
}
address += PageSize;