add directory kernel

kernel/0.00/linux-0.01/mm/page.s

@@ -0,0 +1,34 @@
+/*
+ * page.s contains the low-level page-exception code.
+ * the real work is done in mm.c
+ */
+
+.globl _page_fault
+
+_page_fault:
+	xchgl %eax,(%esp)
+	pushl %ecx
+	pushl %edx
+	push %ds
+	push %es
+	push %fs
+	movl $0x10,%edx
+	mov %dx,%ds
+	mov %dx,%es
+	mov %dx,%fs
+	movl %cr2,%edx
+	pushl %edx
+	pushl %eax
+	testl $1,%eax
+	jne 1f
+	call _do_no_page
+	jmp 2f
+1:	call _do_wp_page
+2:	addl $8,%esp
+	pop %fs
+	pop %es
+	pop %ds
+	popl %edx
+	popl %ecx
+	popl %eax
+	iret