MIPS Assignment #1

Purpose:    Become familiar with RISC Architecture concepts, the MIPS Architecture, and QtSpim
(the MIPS simulator).
Points:    45


Assignment:

Write a MIPS assembly language program to calculate the area of each trapezoid in a set of trapezoids. The sides should be read from word-sized aSides , cSides, and heights arrays. The result must be stored into the word-sized tAreas array. Below is the formula to calculate the area of a trapezoid:

tAreas[ n] = (heights[ n] ×
( aSides [n] +
cSides[ n])
)







2



After all the trapezoid areas have been calculated, the program should find the minimum, middle value, maximum, sum, and average for the trapezoid areas array.


The program must display the results to the console window. The output should look something like the following (with the correct answers displayed):



c



eight

a

MIPS Assignment #1








Program
to calculate area of each trapezoid in a series of trapezoids.
Also finds min, med, max, sum, and average for the trapezoid areas.
1
4
9
16
25
36
49
64
10656
12684

81
100
2346
4294
6588

9035


44454
14651

18512

21390
24231

31668
35690
39559

49848

53872

56330
62746

66920
71295
106800
113120

[... display all numbers ...]

Trapezoid areas min = 1
Trapezoid areas med = ?
Trapezoid areas max = ?
Trapezoid areas sum = ?
Trapezoid areas ave = ?
Submission:

    • All source files must assemble and execute with QtSpim/SPIM MIPS simulator.

    • Submit source file
        ◦ Submit a copy of the program source file via the on-line submission

    • Once you submit, the system will score the project and provide feedback.
        ◦ If you do not get full score, you can (and should) correct and resubmit.
        ◦ You can re-submit an unlimited number of times before the due date/time.

    • Late submissions will be accepted for a period of 24 hours after the due date/time for any given lab. Late submissions will be subject to a ~2% reduction in points per an hour late. If you submit 1 minute - 1 hour late -2%, 1-2 hours late -4%, … , 23-24 hours late -50%. This means after 24 hours late submissions will receive an automatic 0.


Program Header Block

All source files must include your name, section number, assignment, NSHE number, and program description. The required format is as follows:

    • Name: <your name>
    • NSHE ID: <your id>
    • Section: <section>
    • Assignment: <assignment number>
    • Description: <short description of program goes here>

Failure to include your name in this format will result in a reduction of points.


Scoring Rubric

Scoring will include functionality, code quality, and documentation. Below is a summary of the scoring rubric for this assignment.

Criteria
Weight
Summary
Assemble
-
Failure to assemble will result in a score


of 0.



Program Header
3%
Must include header block in the


required format (see above).



General Comments
7%
Must include an appropriate level of


program documentation.



Program Functionality
90%
Program must meet the functional
(and on-time)

requirements as outlined in the


assignment. Must be submitted on time


for full score.



Data Declarations

Use the following data declarations:

aSides:
.word
1,
2,
3,
4,
5,
6,
7,
8,
9,
10

.word
15,
25,
33,
44,
58,
69,
72,
86,
99,
101

.word
107,
121,
137,
141,
157,
167,
177,
181,
191,
199

.word
202,
209,
215,
219,
223,
225,
231,
242,
244,
249

.word
251,
253,
266,
269,
271,
272,
280,
288,
291,
299

.word
369,
374,
377,
379,
382,
384,
386,
388,
392,
393

.word
1469,
2474,
3477,
4479,
5482,
5484,
6486,
7788,
8492,
1493
cSides:
.word
1,
2,
3,
4,
5,
6,
7,
8,
9,
10

.word
32,
51,
76,
87,
90,
100,
111,
123,
132,
145

.word
206,
212,
222,
231,
246,
250,
254,
278,
288,
292

.word
332,
351,
376,
387,
390,
400,
411,
423,
432,
445

.word
457,
487,
499,
501,
523,
524,
525,
526,
575,
594

.word
634,
652,
674,
686,
697,
704,
716,
720,
736,
753

.word
1782,
2795,
3807,
3812,
4827,
5847,
6867,
7879,
7888,
1894
heights:  .word
1,
2,
3,
4,
5,
6,
7,
8,
9,
10

.word
102,
113,
122,
139,
144,
151,
161,
178,
186,
197

.word
203,
215,
221,
239,
248,
259,
262,
274,
280,
291

.word
400,
404,
406,
407,
424,
425,
426,
429,
448,
492

.word
501,
513,
524,
536,
540,
556,
575,
587,
590,
596

.word
782,
795,
807,
812,
827,
847,
867,
879,
888,
894

.word
1912,
2925,
3927,
4932,
5447,
5957,
6967,
7979,
7988,
1994
tAreas:
.space
280









len:
.word
70









taMin:
.word
0









taMid:
.word
0









taMax:
.word
0









taSum:
.word
0









taAve:
.word
0










Note, the .space 280 directive reserves 280 bytes which will store 70 words.