Dear All, The x86 disassembly extra credit exercise is (finally!) posted: http://www.cs.dartmouth.edu/~sergey/cs59/x86/hw-x86-extra/extra.txt As you surely noticed, the posting of this exercise was delayed by almost a week. Since the code does some things that production software is never meant to do (even though they are "legal" on x86_64), it took me several evenings to debug this code on several platforms that I believe match those you're most likely to use. Read the above description, and let me know if on your mahcine the code seems broken beyond what it describes. Thanks, --Sergey