Support Hello World

include/PSX/System/syscalls.h

@@ -48,7 +48,8 @@ struct __no_align __syscall_InterruptElement {
 };
 
 #ifdef __cplusplus
-    reinterpret_cast<__VA_ARGS__>(table)
+    #define __syscall_function_cast(table, ...) reinterpret_cast<__VA_ARGS__>(table)
+    extern "C" {
 #else
     #define __syscall_function_cast(table, ...) ((__VA_ARGS__)(void*)table)
 #endif
@@ -123,6 +124,10 @@ static __always_inline void __syscall_ExitCriticalSection() {
     __asm__ volatile("syscall" : "=r"(FuncID) : "r"(FuncID) : "at", "v0", "v1", "a1", "a2", "a3", "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", "t8", "t9", "memory");
 }
 
-int __syscall_printf(const char* txt, ...);
+void __syscall_printf(const char* txt, ...);
+
+#ifdef __cplusplus
+}
+#endif
 
 #endif //!__JABYENGINE_SYSCALLS__H