ICS 312 TA Homepage Fall 2009

General Information

TA:Jade Cheng  成玉  (yucheng@hawaii.edu)
Instructor:David Pager (pager@hawaii.edu)
Course:Machine-Level and Systems Programming
TA Office:POST Building Room 303-3 (cubicle 3)
TA Hours:Tuesday 11:00 to 12:00
Thursday 11:00 to 12:00

Course Requirements


Homework Assignments

If you do not complete homework assignments sufficently, you would automatically fail the course. Otherwise, homework does not affect your grades. Homework submissions will be recorded and posted on this site using the student codes provided by the TA.

Please submit your homework assignments by 11:59 pm on the posted due date. Homework received on time will receive 10 points. One point will be deducted for late submissions. After one week homework will not be accepted.

To facilitate the grading process, please try to follow the following guidelines when submitting assignments.

  1. Email submissions

    Assignments should be submitted via email using your UH UNIX email account. The TA will not accept any other form of submissions.

  2. “To” field of email

    Assignments should be submitted to yucheng@hawaii.edu. Please do not send the assignments to the professor.

  3. “Cc” field of e-mail

    Please cc the email to youself. That way, if the TA doesn’t get your email for some reason, you have proof that it was sent.

  4. Subject of email

    Please use the following pattern for the subject of your email.

    [312] homework number

    For example: [312] homework 1

  5. Body of email

    Please copy and paste the contents of the homework in the email body. That way, the TA will receive your work even if the attachment is rejected.

  6. Attachments

    Plain text files are preferred. PDF, JPG, and PNG files are also accepted. Please do not send Microsoft Office documents.

  7. Multiple submissions

    You may submit an assignment more than one time. Only the most recent assignment submitted will be evaluated.


The grades for homework assignments, programming projects, in-class quizzes, and the exams will be posted using the student codes provided by the TA. If you lose or forget your code, please contact the TA.

Click your student ID to view your grades.

Homework and Quiz Solutions

The solutions of some of the homework assignments and the in-class quizzes will be posted in this section. Since late submmisions are allowed, the solutions will not be available until a couple of weeks after the due date.


;; program2.asm -- This program reads in a string for characters up to 20 bytes
;; along using function 0ah, and then print it out using function 9.
        .model small
        .stack 100
        .386                ; The cbw and cwd instructions are available on all
                            ; 80x86 processors. The movzx, movsx, cwde, and cdq
                            ; instructions are available only on 80386 and later 
                            ; processors.
max     db          15              ; define function 0ah required data space,
count   db          0               ; which needs to be in this order.
buffer  db          15 dup ('?')
newline db          0dh, 0ah, '$'   ; CRLF
msg     db          'Count is: $'   ; a message to show the count size.
prog    proc
        mov         ax, @data
        mov         ds, ax
        mov         ah, 0ah         ; call 0ah function with the address of max.
        lea         dx, max
        int         21h
        lea         dx, newline     ; move to the next line.
        mov         ah, 9h
        int         21h
        movsx       bx, count       ; replace the CR with end of line sign.
        mov         buffer[bx], '$'
        mov         ah, 9h          ; print out the contents in buffer.
        lea         dx, buffer
        int         21h
        lea         dx, newline     ; move to the next line.
        mov         ah, 9h
        int         21h
        lea         dx, msg         ; print out the messge.
        mov         ah, 9h
        int         21h
        add         [count], '0'    ; print out the content in count.
        mov         ah, 2h
        mov         dl, [count]
        int         21h
        mov         al, 0           ; return code of 0
        mov         ah, 4ch         ; function code for exit to os
        int         21h
prog    endp
        end         prog


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