Add build instructions for linux

README.md

@@ -253,6 +253,12 @@ Compilers other than Clang have not been tested and are not recommended, includi
 
 On Windows, you can use the clang-cl toolset and open the project in Visual Studio's CMake integration.
 
+On Linux, you can build via the following commands after creating and entering the `build` directory:
+```
+cmake -S .. -B . -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang -DCMAKE_EXE_LINKER_FLAGS="-lstdc++"
+cmake --build . --config Release
+```
+
 ## Special Thanks
 
-This project could not have been possible without the [Xenia](https://github.com/xenia-project/xenia) emulator, as many parts of the CPU code conversion process has been implemented by heavily referencing its PPC code translator. The project also uses code from [Xenia Canary](https://github.com/xenia-canary/xenia-canary) to patch XEX binaries.
+This project could not have been possible without the [Xenia](https://github.com/xenia-project/xenia) emulator, as many parts of the CPU code conversion process has been implemented by heavily referencing its PPC code translator. The project also uses code from [Xenia Canary](https://github.com/xenia-canary/xenia-canary) to patch XEX binaries.

XenonAnalyse/main.cpp

@@ -26,11 +26,11 @@ void ReadTable(Image& image, SwitchTable& table)
     uint32_t pOffset;
     ppc_insn insn;
     auto* code = (uint32_t*)image.Find(table.base);
-    ppc::Disassemble(code, table.base, insn);
-    pOffset = insn.operands[1] << 16;
+    ppc::Disassemble(code, table.base, insn);           // lis
+    pOffset = insn.operands[1] << 16;                   // Upper 16 bits
 
-    ppc::Disassemble(code + 1, table.base + 4, insn);
-    pOffset += insn.operands[2];
+    ppc::Disassemble(code + 2, table.base + 8, insn);   // addi (skip rlwinm at +4)
+    pOffset += insn.operands[2];                        // Lower 16 bits
 
     if (table.type == SWITCH_ABSOLUTE)
     {
@@ -213,51 +213,52 @@ int main(int argc, char** argv)
     println("# Generated by XenonAnalyse");
 
     auto scanPattern = [&](uint32_t* pattern, size_t count, size_t type)
+    {
+        for (const auto& section : image.sections)
         {
-            for (const auto& section : image.sections)
+            if (!(section.flags & SectionFlags_Code))
             {
-                if (!(section.flags & SectionFlags_Code))
-                {
-                    continue;
-                }
+                continue;
+            }
+
+            size_t base = section.base;
+            uint8_t* data = section.data;
+            uint8_t* dataStart = section.data;
+            uint8_t* dataEnd = section.data + section.size;
+            while (data < dataEnd && data != nullptr)
+            {
+                data = (uint8_t*)SearchMask(data, pattern, count, dataEnd - data);
 
-                size_t base = section.base;
-                uint8_t* data = section.data;
-                uint8_t* dataStart = section.data;
-                uint8_t* dataEnd = section.data + section.size;
-                while (data < dataEnd && data != nullptr)
+                if (data != nullptr)
                 {
-                    data = (uint8_t*)SearchMask(data, pattern, count, dataEnd - data);
+                    SwitchTable table{};
+                    table.type = type;
+                    ScanTable((uint32_t*)data, base + (data - dataStart), table);
 
-                    if (data != nullptr)
+                    // fmt::println("{:X} ; jmptable - {}", base + (data - dataStart), table.labels.size());
+                    if (table.base != 0)
                     {
-                        SwitchTable table{};
-                        table.type = type;
-                        ScanTable((uint32_t*)data, base + (data - dataStart), table);
-
-                        // fmt::println("{:X} ; jmptable - {}", base + (data - dataStart), table.labels.size());
-                        if (table.base != 0)
-                        {
-                            ReadTable(image, table);
-                            printTable(table);
-                            switches.emplace_back(std::move(table));
-                        }
-
-                        data += 4;
+                        ReadTable(image, table);
+                        printTable(table);
+                        switches.emplace_back(std::move(table));
                     }
-                    continue;
+
+                    data += 4;
                 }
+                continue;
             }
-        };
+        }
+    };
 
+    // adjusted for tag 2
     uint32_t absoluteSwitch[] =
     {
         PPC_INST_LIS,
+        PPC_INST_RLWINM,   // (slwi alias)
         PPC_INST_ADDI,
-        PPC_INST_RLWINM,
         PPC_INST_LWZX,
         PPC_INST_MTCTR,
-        PPC_INST_BCTR,
+        PPC_INST_BCTR
     };
 
     uint32_t computedSwitch[] =