add ostep homeworks

2015-03-15 16:54:19 +08:00
parent dab71e324d
commit 5ec5376f5b
44 changed files with 10610 additions and 0 deletions
--- a/related_info/ostep/ostep11-threadintro/wait-for-me.s
+++ b/related_info/ostep/ostep11-threadintro/wait-for-me.s
@@ -0,0 +1,13 @@
+.main
+test $1, %ax     # ax should be 1 (signaller) or 0 (waiter)
+je .signaller
+
+.waiter	
+mov  2000, %cx
+test $1, %cx
+jne .waiter
+halt
+
+.signaller
+mov  $1, 2000
+halt