ntdll: Use the current machine by default to create an ARM64X process.

dlls/ntdll/unix/loader.c

@@ -480,7 +480,8 @@ char *get_alternate_wineloader( WORD machine )
 
     if (machine == current_machine) return NULL;
 
-    if (machine == IMAGE_FILE_MACHINE_AMD64)  /* try the 64-bit loader */
+    /* try the 64-bit loader */
+    if (current_machine == IMAGE_FILE_MACHINE_I386 && machine == IMAGE_FILE_MACHINE_AMD64)
     {
         size_t len = strlen(wineloader);
 

dlls/ntdll/unix/process.c

@@ -801,7 +801,12 @@ NTSTATUS WINAPI NtCreateUserProcess( HANDLE *process_handle_ptr, HANDLE *thread_
         }
         goto done;
     }
-    if (!machine) machine = pe_info.machine;
+    if (!machine)
+    {
+        machine = pe_info.machine;
+        if (is_arm64ec() && pe_info.is_hybrid && machine == IMAGE_FILE_MACHINE_ARM64)
+            machine = main_image_info.Machine;
+    }
     if (!(startup_info = create_startup_info( attr.ObjectName, process_flags, params, &pe_info, &startup_info_size )))
         goto done;
     env_size = get_env_size( params, &winedebug );