115 lines
3.2 KiB
C
115 lines
3.2 KiB
C
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#include <kernel/descriptor_tables.h>
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#include <kernel/tty.h>
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#include <kernel/utils.h>
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#include <stdint.h>
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//These are all reserved by Intel, and need to be here.
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extern void isr0();
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extern void isr1();
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extern void isr2();
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extern void isr3();
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extern void isr4();
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extern void isr5();
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extern void isr6();
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extern void isr7();
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extern void isr8();
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extern void isr9();
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extern void isr10();
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extern void isr11();
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extern void isr12();
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extern void isr13();
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extern void isr14();
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extern void isr15();
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extern void isr16();
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extern void isr17();
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extern void isr18();
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extern void isr19();
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extern void isr20();
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extern void isr21();
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extern void isr22();
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extern void isr23();
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extern void isr24();
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extern void isr25();
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extern void isr26();
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extern void isr27();
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extern void isr28();
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extern void isr29();
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extern void isr30();
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extern void isr31();
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void isr_install() {
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idt_set_gate(0, (unsigned)isr0, 0x00, 0x8E);
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idt_set_gate(1, (unsigned)isr1, 0x00, 0x8E);
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idt_set_gate(2, (unsigned)isr2, 0x00, 0x8E);
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idt_set_gate(3, (unsigned)isr3, 0x00, 0x8E);
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idt_set_gate(4, (unsigned)isr4, 0x00, 0x8E);
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idt_set_gate(5, (unsigned)isr5, 0x00, 0x8E);
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idt_set_gate(6, (unsigned)isr6, 0x00, 0x8E);
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idt_set_gate(7, (unsigned)isr7, 0x00, 0x8E);
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idt_set_gate(8, (unsigned)isr8, 0x00, 0x8E);
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idt_set_gate(9, (unsigned)isr9, 0x00, 0x8E);
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idt_set_gate(10, (unsigned)isr10, 0x00, 0x8E);
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idt_set_gate(11, (unsigned)isr11, 0x00, 0x8E);
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idt_set_gate(12, (unsigned)isr12, 0x00, 0x8E);
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idt_set_gate(13, (unsigned)isr13, 0x00, 0x8E);
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idt_set_gate(14, (unsigned)isr14, 0x00, 0x8E);
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idt_set_gate(15, (unsigned)isr15, 0x00, 0x8E);
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idt_set_gate(16, (unsigned)isr16, 0x00, 0x8E);
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idt_set_gate(17, (unsigned)isr17, 0x00, 0x8E);
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idt_set_gate(18, (unsigned)isr18, 0x00, 0x8E);
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idt_set_gate(19, (unsigned)isr19, 0x00, 0x8E);
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idt_set_gate(20, (unsigned)isr20, 0x00, 0x8E);
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idt_set_gate(21, (unsigned)isr21, 0x00, 0x8E);
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idt_set_gate(22, (unsigned)isr22, 0x00, 0x8E);
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idt_set_gate(23, (unsigned)isr23, 0x00, 0x8E);
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idt_set_gate(24, (unsigned)isr24, 0x00, 0x8E);
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idt_set_gate(25, (unsigned)isr25, 0x00, 0x8E);
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idt_set_gate(26, (unsigned)isr26, 0x00, 0x8E);
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idt_set_gate(27, (unsigned)isr27, 0x00, 0x8E);
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idt_set_gate(28, (unsigned)isr28, 0x00, 0x8E);
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idt_set_gate(29, (unsigned)isr29, 0x00, 0x8E);
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idt_set_gate(30, (unsigned)isr30, 0x00, 0x8E);
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idt_set_gate(31, (unsigned)isr31, 0x00, 0x8E);
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}
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const char* exception_messages[] = {
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"Division by Zero",
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"Debug",
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"Non Maskable Interrupt",
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"Breakpoint",
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"Into Detected Overflow",
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"Out of Bounds",
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"Invalid Opcode",
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"No Coprocessor",
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"Double Fault",
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"Coprocessor Segment Overrun",
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"Bad TSS",
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"Segment Not Present",
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"Stack Fault",
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"General Protection Fault",
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"Page Fault",
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"Unknown Interrupt",
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"Coprocessor Fault",
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"Alignment Check",
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"Machine Check",
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"Reserved",
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"Reserved",
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"Reserved",
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"Reserved",
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"Reserved",
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"Reserved",
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"Reserved",
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"Reserved",
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"Reserved",
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"Reserved",
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"Reserved",
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"Reserved",
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"Reserved"
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};
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void fault_handler(registers_t *r) {
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if(r->int_no < 32) {
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term_write(exception_messages[r->int_no], strlen(exception_messages[r->int_no]));
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puts(" Exception. Halting.");
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for(;;);
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}
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}
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