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CSC/EEE230 Assignment #3 / Fall2025

Assembly Programming Exercise

(post:9/1) (due:9/12 11:59pm)

Late: 9/13 12:01 am – 9/14 11:59 pm

Game over: after 9/14 11:59pm: 0 point

Individual Report

First Name Last Name

______________________ ______________

Instruction:

To edit, you don't need to "request access", all you need to do: File/Download/Microsoft PowerPoint(.pptx), save to your local drive; then you can edit your local file

File name: Save this file as: 230-assign-03-YourFirstName-LastName

Email report directly to ui.luu@gccaz.edu, (Note: submit this assignment using your "maricopa.edu" email to get direct response for any feedback) (Your personal email address may get filtered into my SPAM folder)

Scores:

(1 point) Correct PowerPoint file name including Your Name (pdf file or other format = 0 point)
(1 point) Name (on this page)
(12 points) content of this PowerPoint
(2 points) submit report on time

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�Progressive Vending machine

Consider a progressive vending machine that has the following Outputs:

Outputs: ($t1)

Bit0: Coffee

Bit1: Beer

Bit2: Dial 911

Bit3: Tequila Sunrise

Q1. (2 points)

# write one line of MIPS assembly code using logical operation to serve coffee (Bit0 = 1) without changing other outputs.

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Q2. (2 points)

# write one line of MIPS assembly code using logical operation to turn OFF Beer without changing other outputs:

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�Q3-think

(8 points)

# note: most engineering problems requires some thinking, this is one of them

* Note: This is a test of your understanding, MARS Simulation is NOT required

Using MIPS assembly code and fill in the blank based on instructions in comments:

Main:

Addi $s1, $zero, 0x3E

Jal S1X9

Addi $s3, $s2, 0x05 # $s3 = 0x? _________(Hexadecimal) (2 points)

Spin_wheel:

j spin_wheel

S1X9:

# Functional Requirement:

# Input: $s1

# Output: $s2 = 9 x $s1 (using Shift & Addition)

______________________________ # use Shift instruction (2 points)

______________________________ # use Addition (2 points)

______________________________ # return to caller (2 points)