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28 lines
626 B
C
28 lines
626 B
C
#include <interrupt/idt.h>
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#include <stdint.h>
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#define IDT_ENTRIES 256
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__attribute__ ((aligned(0x10))) // For performance
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idtEntry_t idt[IDT_ENTRIES] = { 0 };
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idtp_t idtp;
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void idtSetGate(uint8_t i, void* handler, uint8_t flags) {
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uint32_t offset = (uint32_t)handler;
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idtEntry_t* entry = &idt[i];
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entry->offsetLow = (uint16_t)offset;
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entry->selector = 0x08;
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entry->zero = 0;
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entry->typeAttr = flags;
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entry->offsetHigh = (uint16_t)(offset >> 16);
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}
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void setupIdt() {
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idtp.limit = sizeof(idtEntry_t) * 256;
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idtp.base = (uint32_t)&idt;
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__asm__ volatile ("lidt %0" : : "m"(idtp));
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}
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