Improve comments.

diff --git a/src/threads/loader.S b/src/threads/loader.S
index 970d2e213dd03a6e12d60bca4ce77f4173811c3c..8e5eeb722e1051c7b94df7f3b7ff1ce8f8b51268 100644 (file)
--- a/src/threads/loader.S
+++ b/src/threads/loader.S
@@ -133,33 +133,33 @@ read_sector:
        cmpl $KERNEL_LOAD_PAGES*8 + 1, %ebx
        jnz read_sector
 
-##### Create temporary PDE and PTE, set page directory pointer, and turn
-##### on paging.
+##### Create temporary page directory and page table, set page
+##### directory pointer, and turn on paging.
 ##### FIXME? We could use a single 4 MB page instead of 1024 4 kB pages.
 
-       # Create PDE at 64 kB.
+       # Create page directory at 64 kB.
        movl $0x10000, %edi             
        movl %edi, %cr3
 
-       # Fill PDE with zeroes.
+       # Fill page directory with zeroes.
        subl %eax, %eax
        movl $0x400, %ecx
        rep stosl
 
-       # Set PDE entries for 0 and LOADER_PHYS_BASE to point to the
-       # PTE.
+       # Set PDEs for 0 and LOADER_PHYS_BASE to point to the
+       # page table.
        movl $0x11000 | PG_U | PG_W | PG_P, %eax
        movl %eax, 0x10000
        movl %eax, 0x10000 | (LOADER_PHYS_BASE >> 20)
 
-       # Initialize PTE.
+       # Initialize page table.
        movl $PG_U | PG_W | PG_P, %eax
        movl $0x400, %ecx
 1:     stosl
        addl $0x1000, %eax
        loop 1b
 
-       # Enable paging.
+       # Turn on paging.
        movl %cr0, %eax
        orl $CR0_PG, %eax
        movl %eax, %cr0