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CMemory::FindPattern cache bytes in L1.

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* Pre-fetch bytes and cache them in L1.
This commit is contained in:
PixieCore 2022-06-25 11:58:30 +02:00
parent 64cf0d33d7
commit 232680a2a6
1 changed files with 2 additions and 0 deletions
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2
r5dev/public/memaddr.cpp
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@ -98,6 +98,7 @@ CMemory CMemory::FindPattern(const string& svPattern, const Direction searchDire
// If either the current byte equals to the byte in our pattern or our current byte in the pattern is a wildcard
// our if clause will be false.
uint8_t currentByte = *(ScanBytes + memOffset + j);
_mm_prefetch(reinterpret_cast<const char*>(currentByte + 64), _MM_HINT_T0); // precache some data in L1.
if (currentByte != BytesInfo.second[j] && BytesInfo.second[j] != -1)
{
bFound = false;
@ -144,6 +145,7 @@ CMemory CMemory::FindPatternSelf(const string& svPattern, const Direction search
// If either the current byte equals to the byte in our pattern or our current byte in the pattern is a wildcard
// our if clause will be false.
uint8_t currentByte = *(pScanBytes + nMemOffset + j);
_mm_prefetch(reinterpret_cast<const char*>(currentByte + 64), _MM_HINT_T0); // precache some data in L1.
if (currentByte != bytesInfo.second[j] && bytesInfo.second[j] != -1)
{
bFound = false;