54 lines
1.3 KiB
C++
54 lines
1.3 KiB
C++
#ifndef _IDT_HPP
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#define _IDT_HPP
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#include <stdint.h>
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#define IDT_INTERRUPT_GATE 0x06
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#define IDT_TRAP_GATE 0x07
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#define IDT_TASK_GATE 0x05
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#define IDT_SEG_32_BIT 0x08
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#define IDT_RING_0 0x00
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#define IDT_RING_3 0x60
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#define IDT_USED 0x80
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#define SEG_KERNEL 0x08
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#define SEG_USER 0x18 /*NEVER USE!!*/
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#define SEG_DBL_FAULT 0x28 /*Only use for double fault handler!!*/
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extern "C" {
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void loadIDT(void * ptr);
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struct cpu_state {
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// Von Hand gesicherte Register
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uint32_t eax;
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uint32_t ebx;
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uint32_t ecx;
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uint32_t edx;
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uint32_t esi;
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uint32_t edi;
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uint32_t ebp;
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uint32_t intr;
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uint32_t error;
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// Von der CPU gesichert
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uint32_t eip;
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uint32_t cs;
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uint32_t eflags;
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uint32_t esp;
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uint32_t ss;
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};
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}
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namespace MTGosHAL {
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class IDT {
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private:
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uint64_t idt[256];
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void (*ivt[256][16])(struct cpu_state *);
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struct idtp {
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uint16_t limit;
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uint64_t* pointer;
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}__attribute__((packed));
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struct idtp idtptr;
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public:
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IDT();
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auto setEntry(int i, void* offset, uint16_t seg, uint8_t flags) -> void;
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auto apply() -> void;
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auto handle(struct cpu_state* cpu) -> void;
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auto request(uint8_t intr, void (*handler)(struct cpu_state*)) -> bool;
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};
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}
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extern "C" void handleINT(struct cpu_state* cpu);
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#endif
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