From 232680a2a6b1db952c1076aac41677eaace36584 Mon Sep 17 00:00:00 2001 From: PixieCore <41352111+IcePixelx@users.noreply.github.com> Date: Sat, 25 Jun 2022 11:58:30 +0200 Subject: [PATCH] CMemory::FindPattern cache bytes in L1. * Pre-fetch bytes and cache them in L1. --- r5dev/public/memaddr.cpp | 2 ++ 1 file changed, 2 insertions(+) diff --git a/r5dev/public/memaddr.cpp b/r5dev/public/memaddr.cpp index e7d360a1..c93da66c 100644 --- a/r5dev/public/memaddr.cpp +++ b/r5dev/public/memaddr.cpp @@ -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(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(currentByte + 64), _MM_HINT_T0); // precache some data in L1. if (currentByte != bytesInfo.second[j] && bytesInfo.second[j] != -1) { bFound = false;