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void (* disable_irqs_function)(__u16 irqmask) = NULL;
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void (* disable_irqs_function)(__u16 irqmask) = NULL;
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void (* enable_irqs_function)(__u16 irqmask) = NULL;
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void (* enable_irqs_function)(__u16 irqmask) = NULL;
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void (* eoi_function)(void) = NULL;
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void (* eoi_function)(void) = NULL;
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#define PRINT_INFO_ERRCODE(istate) do { \
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static void PRINT_INFO_ERRCODE(istate_t *istate)
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{
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    char *symbol = get_symtab_entry(istate->eip); \
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    char *symbol = get_symtab_entry(istate->eip);
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    if (!symbol) \
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    if (!symbol)
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        symbol = ""; \
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        symbol = "";
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    if (CPU)
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        printf("----------------EXCEPTION OCCURED (cpu%d)----------------\n", CPU->id);
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    else
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    printf("----------------EXCEPTION OCCURED----------------\n"); \
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        printf("----------------EXCEPTION OCCURED----------------\n");
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    printf("%%eip: %X (%s)\n",istate->eip,symbol); \
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    printf("%%eip: %X (%s)\n",istate->eip,symbol);
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    printf("ERROR_WORD=%X\n", istate->error_word); \
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    printf("ERROR_WORD=%X\n", istate->error_word);
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    printf("%%cs=%X,flags=%X\n", istate->cs, istate->eflags); \
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    printf("%%cs=%X,flags=%X\n", istate->cs, istate->eflags);
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    printf("%%eax=%X, %%ebx=%X, %%ecx=%X, %%edx=%X\n",\
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           istate->eax,istate->ebx,istate->ecx,istate->edx); \
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    printf("%%eax=%X, %%ebx=%X, %%ecx=%X, %%edx=%X\n",  istate->eax,istate->ebx,istate->ecx,istate->edx);
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    printf("%%esi=%X, %%edi=%X, %%ebp=%X, %%esp=%X\n",\
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           istate->esi,istate->edi,istate->ebp,istate->esp); \
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    printf("%%esi=%X, %%edi=%X, %%ebp=%X, %%esp=%X\n",  istate->esi,istate->edi,istate->ebp,istate->esp);
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    printf("stack: %X, %X, %X, %X\n", istate->stack[0], istate->stack[1], istate->stack[2], istate->stack[3]); \
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    printf("stack: %X, %X, %X, %X\n", istate->stack[0], istate->stack[1], istate->stack[2], istate->stack[3]);
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    printf("       %X, %X, %X, %X\n", istate->stack[4], istate->stack[5], istate->stack[6], istate->stack[7]); \
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    printf("       %X, %X, %X, %X\n", istate->stack[4], istate->stack[5], istate->stack[6], istate->stack[7]);
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} while(0)
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}
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void null_interrupt(int n, istate_t *istate)
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void null_interrupt(int n, istate_t *istate)
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{
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{
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    PRINT_INFO_ERRCODE(istate);
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    PRINT_INFO_ERRCODE(istate);
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    panic("unserviced interrupt: %d\n", n);
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    panic("unserviced interrupt: %d\n", n);