gdt.h

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#ifndef MAX_OS_SYSTEM_GDT_H
#define MAX_OS_SYSTEM_GDT_H
 
#include <cstdint>
#include <common/macros.h>
#include <system/multiboot.h>
 
 
namespace MaxOS::system {
 
 
    enum class DescriptorFlags : uint64_t {
        Write = (1ULL << 41),
        Execute = (1ULL << 43),
        CodeOrDataSegment = (1ULL << 44),
        GrowDown = (1ULL << 45),
        ConformFromLower = (1ULL << 46),
        Present = (1ULL << 47),
        LongMode = (1ULL << 53),
    };
 
 
    typedef struct PACKED GDTRegister {
 
        uint16_t size;      
        uint64_t address;   
 
    } gdtr_t;
 
    class GlobalDescriptorTable {
 
        public:
            GlobalDescriptorTable();
            ~GlobalDescriptorTable();
 
            uint64_t table[7];    
 
            gdtr_t gdtr = { };     
            void load();
    };
}
 
 
#endif //MAX_OS_SYSTEM_GDT_H