adjust root folder

ports/at91sam7s/irq.c

@@ -0,0 +1,32 @@
+/* The following functions must be written in ARM mode */
+/* these functions are called directly by an exception vector */
+
+/*------------------------------------------------------------------------------ */
+/*         Internal functions */
+/*------------------------------------------------------------------------------ */
+/*------------------------------------------------------------------------------ */
+/* Default spurious interrupt handler. Infinite loop. */
+/*------------------------------------------------------------------------------ */
+void AT91F_Spurious_handler(
+    void)
+{
+    while (1);
+}
+
+/*------------------------------------------------------------------------------ */
+/* Default handler for fast interrupt requests. Infinite loop. */
+/*------------------------------------------------------------------------------ */
+void AT91F_Default_FIQ_handler(
+    void)
+{
+    while (1);
+}
+
+/*------------------------------------------------------------------------------ */
+/* Default handler for standard interrupt requests. Infinite loop. */
+/*------------------------------------------------------------------------------ */
+void AT91F_Default_IRQ_handler(
+    void)
+{
+    while (1);
+}