diff options
Diffstat (limited to 'i686/lidt.c')
| -rw-r--r-- | i686/lidt.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/i686/lidt.c b/i686/lidt.c index 3e261ac..aa6185b 100644 --- a/i686/lidt.c +++ b/i686/lidt.c @@ -1,5 +1,6 @@ #include "idt.h" #include <stdint.h> +#include <stdio.h> struct __attribute__((packed)) Pointer { uint16_t limit; @@ -21,7 +22,7 @@ struct __attribute__((packed)) Gate_t { _Static_assert(sizeof(struct Gate_t) == 8); void -Gate(struct Gate_t *entry, void *f, uint16_t selector) +Gate(struct Gate_t *entry, void (*f)(struct interrupt_frame *), uint16_t selector) { uint32_t f_addr = (uint32_t)f; entry->offset_15_0 = f_addr & 0xffff; @@ -36,7 +37,14 @@ static struct Gate_t interrupt_table[256] __attribute((aligned(4096))); void idt_install() { - for (int i = 0; i <= 0x2f; ++i) Gate(&interrupt_table[i], &interrupt_handler, 0x10); + // exceptions 0x00~0x13 + for (int i = 0; i <= 0x13; ++i) Gate(&interrupt_table[i], &abort_handler, 0x10); + // irq 0x20~0x2f + // for (int i = 0; i < 16; ++i) irq_table[i] = NULL; + for (int i = 0x20; i <= 0x2f; ++i) Gate(&interrupt_table[i], &abort_handler, 0x10); + Gate(&interrupt_table[0x20], &irq0x00, 0x10); + Gate(&interrupt_table[0x21], &irq0x01, 0x10); + // syscall 0x80 Gate(&interrupt_table[0x80], &abort_handler, 0x10); const struct Pointer ptr = {.limit = sizeof(interrupt_table) - 1, .base = (unsigned)&interrupt_table}; |