From 661ec98bb311f87b7e5e281175ebf06fd5baa9f3 Mon Sep 17 00:00:00 2001
From: zilmar <zilmar@pj64-emu.com>
Date: Thu, 27 Jun 2024 16:25:13 +0930
Subject: [PATCH] RSP: User crc32 for crc of imem

---
 Source/Android/PluginRSP/PluginRSP.vcxproj    |  3 +++
 .../Settings/RspSettings.cpp                  |  2 +-
 Source/Project64-rsp-core/cpu/RspMemory.cpp   | 19 +++++++------------
 Source/Project64-rsp/Project64-rsp.vcxproj    |  3 +++
 4 files changed, 14 insertions(+), 13 deletions(-)

diff --git a/Source/Android/PluginRSP/PluginRSP.vcxproj b/Source/Android/PluginRSP/PluginRSP.vcxproj
index 0b22ff741..106f65975 100644
--- a/Source/Android/PluginRSP/PluginRSP.vcxproj
+++ b/Source/Android/PluginRSP/PluginRSP.vcxproj
@@ -46,6 +46,9 @@
     <ClCompile Include="main.cpp" />
   </ItemGroup>
   <ItemGroup>
+    <ProjectReference Include="..\..\3rdParty\zlib\zlib.vcxproj">
+      <Project>{731bd205-2826-4631-b7af-117658e88dbc}</Project>
+    </ProjectReference>
     <ProjectReference Include="..\..\Common\Common.vcxproj">
       <Project>{b4a4b994-9111-42b1-93c2-6f1ca8bc4421}</Project>
     </ProjectReference>
diff --git a/Source/Project64-rsp-core/Settings/RspSettings.cpp b/Source/Project64-rsp-core/Settings/RspSettings.cpp
index 44ee7ba32..e87b537a4 100644
--- a/Source/Project64-rsp-core/Settings/RspSettings.cpp
+++ b/Source/Project64-rsp-core/Settings/RspSettings.cpp
@@ -38,7 +38,7 @@ void InitializeRspSetting(void)
     RegisterSetting(Set_Flags, Data_DWORD_General, "Check Flag Usage", NULL, Compiler.bFlags, NULL);
     RegisterSetting(Set_AlignVector, Data_DWORD_General, "Assume Vector loads align", NULL, Compiler.bAlignVector, NULL);
 
-    RegisterSetting(Set_JumpTableSize, Data_DWORD_Game, "JumpTableSize", NULL, 0x800, NULL);
+    RegisterSetting(Set_JumpTableSize, Data_DWORD_Game, "JumpTableSize", NULL, 0x1000, NULL);
     RegisterSetting(Set_Mfc0Count, Data_DWORD_Game, "Mfc0Count", NULL, 0x0, NULL);
     RegisterSetting(Set_SemaphoreExit, Data_DWORD_Game, "SemaphoreExit", NULL, 0x0, NULL);
 
diff --git a/Source/Project64-rsp-core/cpu/RspMemory.cpp b/Source/Project64-rsp-core/cpu/RspMemory.cpp
index dbdb05d9f..1c465ed37 100644
--- a/Source/Project64-rsp-core/cpu/RspMemory.cpp
+++ b/Source/Project64-rsp-core/cpu/RspMemory.cpp
@@ -5,6 +5,7 @@
 #include <Settings/Settings.h>
 #include <stdio.h>
 #include <string.h>
+#include <zlib/zlib.h>
 
 enum
 {
@@ -78,9 +79,7 @@ void ResetJumpTables(void)
 
 void SetJumpTable(uint32_t End)
 {
-    uint32_t CRC, count;
-
-    CRC = 0;
+    uint32_t CRC = crc32(0L, Z_NULL, 0);
     if (End < 0x800)
     {
         End = 0x800;
@@ -91,17 +90,13 @@ void SetJumpTable(uint32_t End)
         End = 0x800;
     }
 
-    for (count = 0; count < End; count += 0x40)
+    CRC = crc32(CRC, RSPInfo.IMEM, End);
+    for (uint32_t i = 0; i < NoOfMaps; i++)
     {
-        CRC += *(uint32_t *)(RSPInfo.IMEM + count);
-    }
-
-    for (count = 0; count < NoOfMaps; count++)
-    {
-        if (CRC == MapsCRC[count])
+        if (CRC == MapsCRC[i])
         {
-            JumpTable = (void **)(JumpTables + count * 0x1000);
-            Table = count;
+            JumpTable = (void **)(JumpTables + i * 0x1000);
+            Table = i;
             return;
         }
     }
diff --git a/Source/Project64-rsp/Project64-rsp.vcxproj b/Source/Project64-rsp/Project64-rsp.vcxproj
index be4958f68..4663e58b3 100644
--- a/Source/Project64-rsp/Project64-rsp.vcxproj
+++ b/Source/Project64-rsp/Project64-rsp.vcxproj
@@ -58,6 +58,9 @@
     <ClInclude Include="Rsp.h" />
   </ItemGroup>
   <ItemGroup>
+    <ProjectReference Include="..\3rdParty\zlib\zlib.vcxproj">
+      <Project>{731bd205-2826-4631-b7af-117658e88dbc}</Project>
+    </ProjectReference>
     <ProjectReference Include="..\Common\Common.vcxproj">
       <Project>{b4a4b994-9111-42b1-93c2-6f1ca8bc4421}</Project>
     </ProjectReference>