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-rw-r--r--cpu/nios2/traps.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/cpu/nios2/traps.c b/cpu/nios2/traps.c
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+++ b/cpu/nios2/traps.c
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+/*
+ * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
+ * Scott McNutt <smcnutt@psyent.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program 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.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <asm/ptrace.h>
+#include <common.h>
+
+void trap_handler (struct pt_regs *regs)
+{
+ /* Just issue warning */
+ printf ("\n\n*** WARNING: unimplemented trap @ %08x\n\n",
+ regs->reg[29] - 4);
+}
+
+void soft_emulation (struct pt_regs *regs)
+{
+ /* TODO: Software emulation of mul/div etc. Until this is
+ * implemented, generate warning and hang.
+ */
+ printf ("\n\n*** ERROR: unimplemented instruction @ %08x\n",
+ regs->reg[29] - 4);
+ hang ();
+}