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ps2xRuntime/main_example.cpp

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+#include "ps2_runtime.h"
+#include <iostream>
+#include <string>
+
+// Example of how to use the PS2 runtime with recompiled code
+
+// Stub implementation for PS2 syscalls
+void syscall(uint8_t *rdram, R5900Context *ctx)
+{
+    uint32_t syscallNum = ctx->r[4].m128i_u32[0];
+    std::cout << "Syscall " << syscallNum << " called" << std::endl;
+
+    switch (syscallNum)
+    {
+    case 0x01: // Exit program
+        std::cout << "Program requested exit with code: " << ctx->r[5].m128i_u32[0] << std::endl;
+        break;
+
+    case 0x3C: // PutChar - print a character to stdout
+        std::cout << (char)ctx->r[5].m128i_u32[0];
+        break;
+
+    case 0x3D: // PutString - print a string to stdout
+    {
+        uint32_t strAddr = ctx->r[5].m128i_u32[0];
+        if (strAddr == 0)
+        {
+            std::cout << "(null)";
+        }
+        else
+        {
+            uint32_t physAddr = strAddr & 0x1FFFFFFF;
+            const char *str = reinterpret_cast<const char *>(rdram + physAddr);
+            std::cout << str;
+        }
+    }
+    break;
+
+    default:
+        std::cout << "Unhandled syscall: " << syscallNum << std::endl;
+        break;
+    }
+}
+
+// Example implementation of FlushCache
+void FlushCache(uint8_t *rdram, R5900Context *ctx)
+{
+    uint32_t cacheType = ctx->r[4].m128i_u32[0];
+    std::cout << "FlushCache called with type: " << cacheType << std::endl;
+}
+
+// Example implementation of a recompiled function
+void recompiled_main(uint8_t *rdram, R5900Context *ctx)
+{
+    std::cout << "Running recompiled main function" << std::endl;
+
+    // Example of memory access
+    uint32_t addr = 0x100000; // Some address in memory
+    uint32_t physAddr = addr & 0x1FFFFFFF;
+    uint32_t value = *reinterpret_cast<uint32_t *>(rdram + physAddr);
+    std::cout << "Value at 0x" << std::hex << addr << " = 0x" << value << std::dec << std::endl;
+
+    // Example of register manipulation
+    ctx->r[2] = _mm_set1_epi32(0x12345678); // Set register v0
+    ctx->r[4] = _mm_set1_epi32(0x3D);       // Set register a0 for syscall (PutString)
+    ctx->r[5] = _mm_set1_epi32(0x10000);    // Set register a1 with string address
+
+    // Call a "syscall" function
+    syscall(rdram, ctx);
+
+    // Example of returning a value
+    ctx->r[2] = _mm_set1_epi32(0); // Return 0 (success)
+}
+
+int main(int argc, char *argv[])
+{
+    if (argc < 2)
+    {
+        std::cout << "Usage: " << argv[0] << " <elf_file>" << std::endl;
+        return 1;
+    }
+
+    std::string elfPath = argv[1];
+
+    PS2Runtime runtime;
+    if (!runtime.initialize())
+    {
+        std::cerr << "Failed to initialize PS2 runtime" << std::endl;
+        return 1;
+    }
+
+    // Register built-in functions
+    runtime.registerFunction(0x00000001, syscall);
+    runtime.registerFunction(0x00000002, FlushCache);
+    runtime.registerFunction(0x00100000, recompiled_main); // Example address for main
+
+    // Load the ELF file
+    if (!runtime.loadELF(elfPath))
+    {
+        std::cerr << "Failed to load ELF file: " << elfPath << std::endl;
+        return 1;
+    }
+
+    // Run the program
+    runtime.run();
+
+    return 0;
+}