20000317 sourceware import

libgloss/m68k/mc68ec.c

@@ -0,0 +1,48 @@
+/* mc68ec.c -- Low level support for the Motorola mc68ec0x0 board.
+ *             Written by rob@cygnus.com (Rob Savoye)
+ *
+ * Copyright (c) 1995 Cygnus Support
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <_ansi.h>
+#include <errno.h>
+#include "leds.h"
+
+/*
+ * _exit -- exit the running program. We just cause an exception
+ *          which makes the program return to the boot monitor
+ *          prompt. It can be restarted from there.
+ */
+void
+_DEFUN (_exit, (status),
+	int_status)
+{
+  /* Use `i' constraint to get proper immediate-operand syntax for
+     target assembler configuration.  */
+  asm ("trap %0" : : "i" (0));	/* seems to be a harmless vector number */
+}
+
+/*
+ * delay -- delay execution. This is an ugly hack. It should
+ *          use the timer, but I'm waiting for docs. (sigh)
+ */
+void
+_DEFUN (delay, (num),
+        int num)
+{
+  while (num--)
+    {
+      asm ("nop");
+    }
+}