CSCI 6234 Section 11 Project 2 Spring 2021
Lancaster

1

This is project 2 for the spring semester. Be sure to save the projects that you submitted for project 1.
You will need them for a subsequent problem assignment in a few weeks.

This assignment is to complete the design of the simulator, and to implement and test it for a small set
of instructions (this minimizing the complexity of the control unit). Perform the following steps for the
simulation project.
1. Complete the design of the class diagrams and provide sequence or communications diagrams
where appropriate. Think about a sequence diagram for each of the 5 stages. Provide the class
diagrams in a brief design document with descriptions. 40%

2. Test each object component that you developed as you did the memory singleton. Show the
design and test results for each. You can simply print register file, pc, alu and other data
contents in test list format. 40%

3. Implement the control to execute the instructions in Figure 1 using the program in Figure 2
which is read in from a file. You can move the values of array to after the program. 20%


Figure 1 edumips frame showing code and hexadecimal values
The code that generated this edumips panel is provided below in Figure 2. You do not have to worry
about an assembler, you can just use the hex codes and choose a location for the array just beyond
the code. The objective is that you be able to hard code this program and generate the results in
the registers that you see in Figure 3. As the program runs it should print out only the PC and
register contents as it runs. In the form:
PC = 00000000 R0 = 00000000
in rows. Note here we use only R0 through R6, so you only need print out those values.

CSCI 6234 Section 11 Project 2 Spring 2021
Lancaster

2

DADDI R4,R0,array ;R4 STARTS AT Array R0 is always 0
LD R3,count(R0) ;R3 has count
DADD R5,R0,R0 ;R5 (SUM)
LOOP: LD R6,0(R4) ;GET THE WORD
DADDI R3,R3,-1
DADDI R4,R4,8 ;increment by 8
DADD R5,R5,R6 ;ADD IT
BNE R3,R0,LOOP ;JUMP BACK IF NOT EQUAL


array: .word 8 ;beginning of array
.word 15 ; .word is 64 bits
.word 32
.word 27
.word 13
.word 10
.word 7
count: .word 7

Figure 2. The simulator input.



Figure 3 Register Contents

This project is due by the last day of class.

欢迎咨询51作业君