Jayden/sharpemu
1
0
Fork 0
mirror of https://github.com/par274/sharpemu.git synced 2026-07-24 11:48:39 +08:00
Code Issues Packages Projects Releases Wiki Activity

rework TLS allocations, more HLE's, increase import loop history

Browse Source
This commit is contained in:
ParantezTech
2026-03-16 20:22:58 +03:00
parent 3cf96f38de
commit 1a1d61b21c
4 changed files with 95 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/SharpEmu.Core/Cpu/Native/DirectExecutionBackend.Imports.cs
+14 -4
View File
@@ -231,9 +231,6 @@ public sealed partial class DirectExecutionBackend
ProbeReturnRip(num7, num);
Console.Error.Flush();
}
ProbeReturnRip(0x0000000800EA020Eul, 999001);
ProbeReturnRip(0x0000000800EA0213ul, 999002);
ProbeReturnRip(0x0000000800EA040Aul, 999003);
try
{
OrbisGen2Result orbisGen2Result;
@@ -426,7 +423,20 @@ public sealed partial class DirectExecutionBackend
return false;
}
int num2 = CountDistinctImportLoopValuesFromTail(_importLoopReturnRips, sampleCount, 3);
return num2 <= 2;
if (num2 > 2)
{
return false;
}
int num3 = Math.Min(_importLoopSignatureCount, Math.Max(sampleCount * 8, ImportLoopWideDiversityWindow));
if (num3 <= sampleCount)
{
return true;
}
if (CountDistinctImportLoopValuesFromTail(_importLoopNidHashes, num3, 3) > 2)
{
return false;
}
return CountDistinctImportLoopValuesFromTail(_importLoopReturnRips, num3, 3) <= 2;
}
private int CountDistinctImportLoopValuesFromTail(ulong[] source, int sampleCount, int stopAfter)
src/SharpEmu.Core/Cpu/Native/DirectExecutionBackend.cs
+8 -12
View File
@@ -13,6 +13,10 @@ namespace SharpEmu.Core.Cpu.Native;
public sealed unsafe partial class DirectExecutionBackend : INativeCpuBackend, IDisposable
{
private const int ImportLoopHistoryLength = 2048;
private const int ImportLoopWideDiversityWindow = 768;
private readonly struct ImportStubEntry
{
public ulong Address { get; }
@@ -89,7 +93,7 @@ public sealed unsafe partial class DirectExecutionBackend : INativeCpuBackend, I
private const uint PAGE_EXECUTE_READ = 32u;
private const int TlsHandlerRegionSize = 4096;
private const int TlsHandlerRegionSize = 16384;
private const ulong TlsModuleAllocStart = 140726751354880uL;
@@ -179,11 +183,11 @@ public sealed unsafe partial class DirectExecutionBackend : INativeCpuBackend, I
private ulong _entryReturnSentinelRip;
private readonly ulong[] _importLoopSignatures = new ulong[192];
private readonly ulong[] _importLoopSignatures = new ulong[ImportLoopHistoryLength];
private readonly ulong[] _importLoopNidHashes = new ulong[192];
private readonly ulong[] _importLoopNidHashes = new ulong[ImportLoopHistoryLength];
private readonly ulong[] _importLoopReturnRips = new ulong[192];
private readonly ulong[] _importLoopReturnRips = new ulong[ImportLoopHistoryLength];
private int _importLoopSignatureCount;
@@ -601,14 +605,6 @@ public sealed unsafe partial class DirectExecutionBackend : INativeCpuBackend, I
{
return exportName switch
{
"_init_env" or
"atexit" or
"strlen" or
"strnlen" or
"strcmp" or
"strncmp" or
"strcpy" or
"strncpy" or
"memcpy" or
"memmove" or
"memset" or