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This commit is contained in:
manzerbredes 2015-07-21 17:25:36 +04:00
parent dd6a7fb6fa
commit bf534139e3
3 changed files with 13 additions and 4 deletions
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4
kernel/Drivers/memPrint/memPrint.hpp
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@ -1,7 +1,7 @@
#ifndef __memPrint__ #ifndef __memPrint__
#define __memPrint__ #define __memPrint__
//Define the bios color
enum colorBios{ enum colorBios{
BLACK=0x0, BLACK=0x0,
@ -23,8 +23,10 @@ enum colorBios{
}; };
//Type def for biosColor
typedef enum colorBios colorBios; typedef enum colorBios colorBios;
// Define class to print text on screen // Define class to print text on screen
#endif #endif

9
kernel/GDT/gdt.cpp
View file

@ -2,7 +2,7 @@
#include "../Helpers/types.hpp" #include "../Helpers/types.hpp"
#include "../Helpers/memory.hpp" #include "../Helpers/memory.hpp"
//Constructor
Gdt::Gdt(){ Gdt::Gdt(){
//Init conventional segment //Init conventional segment
@ -25,10 +25,12 @@ Gdt::Gdt(){
} }
//Destructor
Gdt::~Gdt(){ Gdt::~Gdt(){
} }
//Adapt parameter to the gdt descriptor structure
void Gdt::initGdtDesc(u32 base, u32 limit, u8 access, u8 flags, gdtDescriptorStruct *Descriptor){ void Gdt::initGdtDesc(u32 base, u32 limit, u8 access, u8 flags, gdtDescriptorStruct *Descriptor){
Descriptor->limit1 = limit & 0xFFFF; Descriptor->limit1 = limit & 0xFFFF;
Descriptor->base1 = base & 0xFFFF; Descriptor->base1 = base & 0xFFFF;
@ -39,11 +41,14 @@ void Gdt::initGdtDesc(u32 base, u32 limit, u8 access, u8 flags, gdtDescriptorStr
Descriptor->base3 = (base & 0xFF000000) >> 24; Descriptor->base3 = (base & 0xFF000000) >> 24;
} }
//Copy the gdt into mémory and load it
void Gdt::loadGdt(){ void Gdt::loadGdt(){
int *gdtAdress=(int *)&m_Pointer;
//Copy Gdt into memory and init registers //Copy Gdt into memory and init registers
memcpy((u32)m_Descriptors, (u32)m_Pointer.segment, (u32)m_Pointer.size); 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);" __asm__("lgdtl (%0);"
: :
:"r"(gdtAdress) :"r"(gdtAdress)

4
kernel/main.cpp
View file

@ -1,4 +1,7 @@
//To load GDT
#include "GDT/gdt.hpp" #include "GDT/gdt.hpp"
//To print text
#include "Drivers/memPrint/memPrint.hpp" #include "Drivers/memPrint/memPrint.hpp"
@ -15,7 +18,6 @@ int main(){
//----- PiegOS kernel boot ----- //----- PiegOS kernel boot -----
//Mangling the _boot function //Mangling the _boot function
extern "C" void _boot(){ extern "C" void _boot(){