PAGE_DIR           62 bsp/hal/arm/include/mmu.h #define PAGE_DIR(virt)      (int)((((vaddr_t)(virt)) >> 20) & 0xfff)
PAGE_DIR           63 bsp/hal/ppc/include/mmu.h #define PAGE_DIR(virt)
PAGE_DIR           67 bsp/hal/x86/include/mmu.h #define PAGE_DIR(virt)      (int)((((vaddr_t)(virt)) >> 22) & 0x3ff)