+/* Flags in control register 0 */
+#define CR0_PE 0x00000001 /* Protection Enable. */
+#define CR0_EM 0x00000004 /* (Floating-point) Emulation. */
+#define CR0_PG 0x80000000 /* Paging. */
+#define CR0_WP 0x00010000 /* Write-Protect enable in kernel mode. */
+