#include "pde.h"

void pd_entry_add_attrib (pd_entry* entry, unsigned mask) {
      *entry |= mask;
}

void pd_entry_del_attrib (pd_entry* entry, unsigned mask) {
      *entry &= ~mask;
}

void pd_entry_set_frame (pd_entry* entry, unsigned address) {
      *entry = (*entry & ~_I86_PDE_FRAME) | address;
}
 
unsigned pd_entry_get_frame (pd_entry entry) {
      return entry&_I86_PDE_FRAME;
}

unsigned char pd_entry_is_present (pd_entry entry) {
      return (entry & _I86_PDE_PRESENT);
}

unsigned char pd_entry_is_user (pd_entry entry) {
      return (entry & _I86_PDE_USER);
}
 
unsigned char pd_entry_is_4mb (pd_entry entry) {
      return (entry & _I86_PDE_4MB);
}
 
unsigned char pd_entry_is_writable (pd_entry entry) {
      return (entry & _I86_PDE_WRITABLE);
}

void pd_entry_enable_global (pd_entry entry) {
}