Exam 2 Information
Exam 2 is Monday, December 9, in CSIC 3117
(classroom) from 5:00-6:15. Closed book, closed notes, closed neighbor
Final Exam Information
Final is Tuesday, December 17, in CSIC 3117
(classroom) from 4:00-6:00. Closed book, closed notes, closed neighbor
Feb 2 Project grades are now included in your overall
grade. The updated scores (if any) will appear on MARS in a day or
two. Basically, I computed your project grade average, counted it
25% to your overall grade (75% was your exams), and recomputed
cutoffs. 25% isn't a very large amount, so many grades stayed
fairly similar. Recall that doing the projects doesn't guarantee
your grade improves. For many, grades will stay the same. Also,
recall that the higher your grade was, the better you had to do
on projects to make that grade leap (so it was a little easier
to get to a B- than to an A-).
Jan 15 It looks like I'm a little more backlogged
than I thought (had some CMSC 214 things from last semester to
fix up, so that took a little time). Anyway, grades should be
ready soonish (for now, let's say by Sunday or Monday). For
the purposes of the dean's office, I'm going to enter the D's
and F's now (based on exam grades only), and fix that up once
project grades are complete.
Jan 9 I'm basically back from vacation, and will
be working on projects the next few days. I'll post something
up once they're done, but I'm looking at sometime early next
week to get done.
Dec 23 Grades should be ready in the next 8 hours, but
unfortunately, project grades won't be ready before I have to head out
of town tomorrow. I will submit your grades based on exams first.
If you have a D/F (based on exams), I will submit them after your
project grades are computed. However, if you receive an F, project
grades may only help you to a D (I think I wrote that in the syllabus
I will try to get some work done through a bad Internet connection,
but will be back in early January to finish the project grades.
Note: accounts will disappear by December 30. If you need
to save stuff, you should do so before then.
Dec 22 At this point, I'm hoping to have final grades
ready by Monday evening. I should have some idea of cutoffs
based on exams ONLY, but then, I'm also trying to get project
grades completed as well. Once that's done, I should post
something on the webpage, so keep an eye on that.
Dec 18 You should be able to pick up exam 2 around 1:30 on
Wednesday. I will leave them with Kinga somewhere near the TA office
(we'll put a note in the TA office, if she's elsewhere)
Dec 16 Stuart will hold office hours Monday at 1 PM,
as usual. Kinga will hold last minute office hours on Tuesday
at 1:30 PM.
Dec 14 Note: sllv and slrv are NOT on P2. They were
added last minute, but for use NEXT semester, not this semester.
So don't implement them.
Dec 14 Final exam is expected to be a combination of
Exam 1 and Exam 2 material. Only new topic is interleaved memory.
Should be asking a question on timing diagrams too. I will be
in office hours at 1 PM Sunday. You should be able to pick up exam
2 then, as well.
BTW, I haven't been reading email lately.
Dec 14 Sorry, got a little backlogged.
Most solutions to Exam 2 now posted. Click on Exam Solutions
on the left.
Dec 14 I will meet students at 1 PM on Sunday for
review. You can pick up exams then. I will be posting
solutions to parts 5, 6, and Challenge by about 4 PM. I
should have some solutions to 4 up as well.
Dec 14 Primary output for "ori" corrected.
For a variety of reasons, the current project is now OPTIONAL. In
particular, I had to correct the primary output for the last line (I had
digits transposed on the "ori" instruction).
To compute your final grades, I will total the score from the
first 3 projects (0, 1, and 2) and give a grade to the entire
class (i.e., A, B, C). This will count 20% to your final
grade. Note: doing P2 then helps because it adds more points
to your project total (I will accepts P2 up to Friday of exam
I will also compute your final grades due to exams only.
I will take the higher of the grades computed by exams only
and by exams plus projects.
As long as you submitted P0 and P1, then I take the better
of the two grades. However, if you do abysmal on exams only
(i.e, get an F average), I reserve the right not to pass.
I primarily want students who are just under the C cutoff
to move up.
If you really need the final exam grade, I would suggest
studying for your finals, and trying the projects after the
Dec 11 You should be able to submit now. I will be
checking student emails off and on to see if there are "bugs"
(mostly the output being incorrect). I have updated the printBin
so it doesn't print out that extra line. There is a sample
Makefile which you can use to help out.
I should be in AVW 1151 around 1 PM on Saturday and Sunday.
On Saturday, I will answer questions about the projects. On Sunday,
I will answer questions about the final exam.
Dec 10 A NEW sample input is ready in the posting account.
Drivers should be posted soon (it will basically read the input file
from "sample.file" and then print out the "English" version of the
MIPS instructions").. I will be re-reading some of the
posted MIPS instructions in the project to make sure they look good
(a student emailed me that a few instructions seem off). Read
README.more in the posting account.
Dec 9 A sample input is ready in the posting account,
which has an add and addi instruction. The actual primary should be
ready by morning, but I may have it sooner. Check here for
further notices. Read README.more.
Dec 8 The solution to the problem about equivalent
flip flops (each flip flop can be implemented by another) is basically
to draw a 2-state finite state machine representing the flip flop's
behavior. For example, with a D flip flop, the D value is the
inputs, and the "z" valus are the outputs of the flip flop.
Dec 7 More solutions posted. Click on link below. I will
provide the MIPS instructions similar to that on the inside back cover
of the book (at least, I think they're in the back of the book).
Dec 7 Some answers ready for practice exam. Some answers here. It's in
Postscript. More solutions later.
Dec 6 Cache Tutorial
Tutorial from Spring 2002. Read "Finite State Machines".
Skip Karnaugh maps. There may be some minor errors, so be careful
I should be in AVW 1152 Sunday at 2 PM, if you have
Dec 6 Chapters to read: Chapter 3 (most of it), Chapter
7.1-7.3 (mostly 7.1 and 7.2) on "cache". The tutorial on
finite state machines from Summer 2002 CMSC 311 webpage (I will
have a link added soon, but I trust you can find it).
Dec 6 I will be working on a "Cache" tutorial this
evening, which should answer questions in the middle part of
the sample exam. I will post up the sample exam too. Finally,
I should be able to get some answers to questions on the first
part. The MIPS section, I will post sometime Saturday.
I hope to have primaries up Saturday too. Check announcements
later this evening for more info.
Dec 5 The description to "Load" now has the description
of reading from and writing to a binary file.
Dec 3 P2 posted. There are some corrections to the
assembly instructions. In particular, the $rs, $rt, $rd are
currently being corrected.
Dec 3 Makeups for quizzes are at 2 PM on Tuesday,
Thursday. On Wednesday/Friday, they are at 2:15. We will
meet in room 1152 on all days except Wednesday, where we will
meet in 1112.
Nov 28 Power outage all day Friday (29th) due to repairs
Nov 4 Posted solutions to Exam 1. Click on "Exam solutions"
on left. This is in Postscript. This is also in the posting account
under the Exam directory.
Oct 30 Signed numbers in Register should use
2C. If you used other representations (such as signed magnitude),
you can turn in the project a few days late (say Sunday), provided
that you ALSO turn in the Register version with signed magnitude
(give that version a different name, like RegisterSM).
Also, you should have bit 0 be the least significant bit, and
bit 31 (or whatever the size) be the most significant bit. Bits
in registers are numbered right to left, not left to right.
Oct 26 The moment you've been waiting for! You can
turn in Project 1. The primary only checks the Convert class, so if you
have questions about Register, ask in class or email:
As announced in class, this means the project has 4 more days
to be submitted, so you can turn it in by Thursday midnight for
regular credit. Yes, I know that there is a 330 project due
at the same time. However, this project has been out for at
least a month. The ability to do projects without primary inputs
and outputs is something you will need for 400-level courses
(you can ask questions such as "if this is the input, is this the
Oct 19 I just posted solutions to P1. I will hold
office hours between 1-2 PM on Sunday, if you have questions for
the exam. Stuart will have office hours between 1-3 PM on
Monday as usual.
Oct 19 P1 is extended to October 23, 2002. Drivers should
be up this evening (perhaps late-ish). Postscript solutions to
exam should be up in ~chf11001/Exam.
Oct 13 P1 is extended to October 19, 2002. Drivers should
be up Monday-ish.
Oct 5 Register specs up. However, they were written
in a rush, which means small errors may appear. The files
are currently not in the posting account, however, feel free to
write them based on the specs. The files should be up this
evening or Sunday.
I plan to add one additional function to Convert.
which will read in a series of 32 bit values from a binary
file, with a given endian-ness. That should be up fairly soon.
At this point, barring any inspirations, that should be
it for P1.
Sept 30 OK, more functions in Convert. That
should be it for that class.
I will work on a Register class (for C++/Java) and try
to have that ready tomorrow. Send email if you see anything that
Sept 27 Some students are eager to start P1, so I've
posted a few things to keep you busy for now. I will add a few
more functions tonight and tomorrow.
However, expect that there may be a few tiny problems,
so read FAQ, etc. regularly. You have two weekends to work on
this. It's not all that bad though.
Sept 21 To submit:
~chf11001/submit p0.tar 0
Include a README file. Read HOW_TO_SUBMIT from the
posting account: ~chf11001/Proj/P0/
Sept 21 You can put anything in the README
including nothing. It's there in case you have some comments
about how your project runs to the TA.
Sept 19 A student noticed the primary output
doesn't match the description. According to the description,
getLeftToken() should be left trimmed (though not right
As an additional extra credit, I would like getRightToken()
to behave differently. It should look for the first real delimiter
from the right, but NOT trim the spaces. Thus,
if the string were "***cat***,***dog**", then the rightmost token
would be "***dog**", and the rest of the string would be "***cat***".
Sept 19 g++-3.2 still appears to be broken, actually.
YOU MAY SUBMIT now. Early due date is now moved to 11 PM
on Saturday, Sept. 21. The bonus is 10% of the project
worth. Ontime is 11 PM on Sunday, Sept. 22. Read the
HOW_TO_SUBMIT. There's a driver and a main, that you
need to copy over.
NOTE: Only the latest submission counts. If you turn in
an early and an ontime, then only the ontime will be graded.
NOTE: The late policy is pretty generous. Up to 7 days
late, at 2 points off a day.
Sept 19 g++-3.2 is back again. However,
if you can get it to work with cxx -w0 -std strict_ansi,
that will be fine too. Still getting primary ready.
Read about extra credit in project FAQ.
Sept 18 Project due Sunday at 11 PM. Early
due date Saturday at noon. Primary should be up by this
evening or Thursday morning. Read announcements here
for information on that.
Sept 18 Both versions of g++ appear to be broken.
In particular, some library for g++-3.2 is missing.
So, use cxx -w0 -std strict_ansi for now.
Sept 17 I'm creating a "definitions" page.
Alas, it's not in alphabetical order. Click on
"Definitions" under OTHER to the left.
Sept 15 Some students have asked more clarification
questions, so those are now in a P0 FAQ (see P0 webpage).
Sept 15 If the delimiter has more than two
characters, then the backslash only appears before
the first character. Thus, if you have :: as
a delimiter, the escaped version is \::
Sept 13 Note: g++ and g++-3.2
are different compilers. g++ is version 2.95 (which
doesn't support namespaces) and g++-3.2 is
the one that does support it.
Sept 12 Clarifications to project 0
are located at the top of project 0 webpage.
Sept 6 Project 0 is basically ready. You should
be able to code now. However, there may be clarifications
and corrections, so read the announcements for more info.
Click Project 0 link.
Sept 6 Webpage just put up. Project 0 should
be ready pretty soon. There will be a note when that happens.