diff options
Diffstat (limited to 'nuttx/arch/z16/src/z16f/z16f_sysexec.c')
-rw-r--r-- | nuttx/arch/z16/src/z16f/z16f_sysexec.c | 126 |
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); +} |