From e25b74ca8069e340c3f2c267d09beed6d9328250 Mon Sep 17 00:00:00 2001 From: Frans Kaashoek Date: Thu, 1 Sep 2011 10:25:20 -0400 Subject: Fix layout issues for printed version --- mmu.h | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'mmu.h') diff --git a/mmu.h b/mmu.h index 0da30e7..5c9ab60 100644 --- a/mmu.h +++ b/mmu.h @@ -118,13 +118,13 @@ struct segdesc { #define PGADDR(d, t, o) ((uint)((d) << PDXSHIFT | (t) << PTXSHIFT | (o))) // Page directory and page table constants. -#define NPDENTRIES 1024 // page directory entries per page directory -#define NPTENTRIES 1024 // page table entries per page table -#define PGSIZE 4096 // bytes mapped by a page +#define NPDENTRIES 1024 // # directory entries per page directory +#define NPTENTRIES 1024 // # PTEs per page table +#define PGSIZE 4096 // bytes mapped by a page -#define PGSHIFT 12 // log2(PGSIZE) -#define PTXSHIFT 12 // offset of PTX in a linear address -#define PDXSHIFT 22 // offset of PDX in a linear address +#define PGSHIFT 12 // log2(PGSIZE) +#define PTXSHIFT 12 // offset of PTX in a linear address +#define PDXSHIFT 22 // offset of PDX in a linear address #define PGROUNDUP(sz) (((sz)+PGSIZE-1) & ~(PGSIZE-1)) #define PGROUNDDOWN(a) (((a)) & ~(PGSIZE-1)) -- cgit v1.2.3