diff options
Diffstat (limited to 'kernel/GDT/gdt.cpp')
| -rw-r--r-- | kernel/GDT/gdt.cpp | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/kernel/GDT/gdt.cpp b/kernel/GDT/gdt.cpp deleted file mode 100644 index 8c6d9d9..0000000 --- a/kernel/GDT/gdt.cpp +++ /dev/null @@ -1,58 +0,0 @@ -#include "gdt.hpp" -#include "../Helpers/types.hpp" -#include "../Helpers/memory.hpp" - -//Constructor -Gdt::Gdt(){ - - //Init conventional segment - this->initGdtDesc(0x0,0x0,0x0,0x0, &m_Descriptors[0]); - - //Init code segment - this->initGdtDesc(0x0,0xFFFFF,0x9A,0x0D, &m_Descriptors[1]); - - //Init data segment - this->initGdtDesc(0x0,0xFFFFF,0x92,0x0D, &m_Descriptors[2]); - - //Init stack segment - this->initGdtDesc(0x00B00000,0x00000500,0x96,0x0D, &m_Descriptors[3]); - - - //Init GDT Pointer - this->m_Pointer.size=4*sizeof(this->m_Descriptors); - this->m_Pointer.segment=0x00007E00; - - -} - -//Destructor -Gdt::~Gdt(){ - -} - -//Adapt parameter to the gdt descriptor structure -void Gdt::initGdtDesc(u32 base, u32 limit, u8 access, u8 flags, gdtDescriptorStruct *Descriptor){ - Descriptor->limit1 = limit & 0xFFFF; - Descriptor->base1 = base & 0xFFFF; - Descriptor->base2 = (base & 0xFF0000) >> 16; - Descriptor->access = access; - Descriptor->limit2 = (limit & 0xF0000 ) >> 16; - Descriptor->flags = flags & 0xFF; - Descriptor->base3 = (base & 0xFF000000) >> 24; -} - -//Copy the gdt into mémory and load it -void Gdt::loadGdt(){ - //Copy Gdt into memory and init registers - memcpy((u32)m_Descriptors, (u32)m_Pointer.segment, (u32)m_Pointer.size); - - //Put m_Pointer in a var to pass it to assembly code - int *gdtAdress=(int *)&m_Pointer; - - __asm__("lgdtl (%0);" - : - :"r"(gdtAdress) - ); -} - - |