add lab answers

2014-08-20 15:42:20 +08:00
parent d9ec12887b
commit f9773095fe
731 changed files with 92876 additions and 0 deletions
--- a/labcodes_answer/lab4_result/kern/driver/intr.c
+++ b/labcodes_answer/lab4_result/kern/driver/intr.c
@@ -0,0 +1,15 @@
+#include <x86.h>
+#include <intr.h>
+
+/* intr_enable - enable irq interrupt */
+void
+intr_enable(void) {
+    sti();
+}
+
+/* intr_disable - disable irq interrupt */
+void
+intr_disable(void) {
+    cli();
+}
+