1 files changed, 126 insertions, 0 deletions
diff --git a/nuttx/arch/z16/src/z16f/z16f_sysexec.c b/nuttx/arch/z16/src/z16f/z16f_sysexec.c
new file mode 100644
index 000000000..8ee91764c
--- /dev/null
+++ b/nuttx/arch/z16/src/z16f/z16f_sysexec.c
@@ -0,0 +1,126 @@
+/***************************************************************************
+ * z16f/z16f_sysexec.c
+ *
+ *   Copyright (C) 2008 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ***************************************************************************/
+
+/***************************************************************************
+ * Included Files
+ ***************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+#include <debug.h>
+
+#include <nuttx/arch.h>
+
+#include "chip/chip.h"
+#include "os_internal.h"
+#include "up_internal.h"
+
+/***************************************************************************
+ * Definitions
+ ***************************************************************************/
+
+#ifdef CONFIG_ARCH_LOWPUTC
+#  define SYSDBG lib_lowprintf
+#else
+#  define SYSDBG lib_rawprintf
+#endif
+
+/***************************************************************************
+ * Private Types
+ ***************************************************************************/
+
+/***************************************************************************
+ * Private Functions
+ ***************************************************************************/
+
+/***************************************************************************
+ * Global Functions
+ ***************************************************************************/
+
+/***************************************************************************
+ * Function:  z16f_sysexec
+ *
+ * Description:
+ *   Handle a Z16F system execption
+ *
+ ***************************************************************************/
+
+void z16f_sysexec(FAR chipreg_t *regs)
+{
+  int errcode = OSERR_ERREXCEPTION;
+  uint16 excp;
+ 
+  /* The cause of the the system exception is indicated in the SYSEXCPH&L
+   * registers
+   */
+
+  excp = getreg16(Z16F_SYSEXCP);
+  if ((excp & Z16F_SYSEXCP_SPOVF) != 0)
+    {
+      SYSDBG("SP OVERFLOW\n");
+    }
+  if ((excp & Z16F_SYSEXCP_PCOVF) != 0)
+    {
+      SYSDBG("PC OVERFLOW\n");
+    }
+  if ((excp & Z16F_SYSEXCP_DIV0) != 0)
+    {
+      SYSDBG("Divide by zero\n");
+    }
+  if ((excp & Z16F_SYSEXCP_DIVOVF) != 0)
+    {
+      SYSDBG("Divide overflow\n");
+    }
+  if ((excp & Z16F_SYSEXCP_ILL) != 0)
+    {
+      SYSDBG("Illegal instruction\n");
+      errcode = OSERR_UNDEFINEDINSN;
+    }
+  if ((excp & Z16F_SYSEXCP_WDTOSC) != 0)
+    {
+      SYSDBG("WDT oscillator failure\n");
+    }
+  if ((excp & Z16F_SYSEXCP_PRIOSC) != 0)
+    {
+      SYSDBG("Primary Oscillator Failure\n");
+    }
+  if ((excp & Z16F_SYSEXCP_WDT) != 0)
+    {
+      SYSDBG("Watchdog timeout\n");
+      z16f_reset();
+    }
+  PANIC(errcode);
+}