diff --git a/code/renderer/tr_subs.c b/code/renderer/tr_subs.c
new file mode 100644
index 00000000..6f490128
--- /dev/null
+++ b/code/renderer/tr_subs.c
@@ -0,0 +1,48 @@
+/*
+===========================================================================
+Copyright (C) 2010 James Canete (use.less01@gmail.com)
+
+This file is part of Quake III Arena source code.
+
+Quake III Arena source code is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Quake III Arena source code is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Quake III Arena source code; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+// tr_subs.c - common function replacements for modular renderer
+
+#include "tr_local.h"
+
+void QDECL Com_Printf( const char *msg, ... )
+{
+	va_list         argptr;
+	char            text[1024];
+
+	va_start(argptr, msg);
+	Q_vsnprintf(text, sizeof(text), msg, argptr);
+	va_end(argptr);
+
+	ri.Printf(PRINT_ALL, "%s", text);
+}
+
+void QDECL Com_Error( int level, const char *error, ... )
+{
+	va_list         argptr;
+	char            text[1024];
+
+	va_start(argptr, error);
+	Q_vsnprintf(text, sizeof(text), error, argptr);
+	va_end(argptr);
+
+	ri.Error(level, "%s", text);
+}