Objective: This lab is a wrap up for the WALL experience. It is designed to measure a comprehensive ability to put all concepts together into one final project.
Submission: Submit only a single file named LAB07.txt. Submission herein is for failsafe backup in case you completely botch the git repository. NOTE: The last submission is the one that will be graded.
The problem: Complete those parts of the below program that are labeled STUDENT COMPLETE HERE. DO NOT ALTER ANY OF THE CODE BELOW.
sip main
# **********************************************
# FILE: lab07.txt
#
# PURPOSE: Perform a computation and displays
# results on console
#
# PROGRAMMERS: H. Paul Haiduk
# <Team member #1
# <Team member #2
#
# DATE: Original version: 02/26/2018
# Completed version: ??/??/????
# **********************************************
# **********************************************
# Data Declarations
# **********************************************
org 0x20
Number1: db 127
Number2: db 128
Sum: bss 1
Message: db "Sum is - ",0
# **********************************************
# Main Program
# **********************************************
org 0x00
main:
load R0,0xAB
load R1,1
load R2,[Number1]
load R3,[Number2]
add R2,R2,R3
store [Sum],R2
load R3,Message
push R3
call PrintMessage
push R2
call PrintByte
halt
# **********************************************
# Functions/Procedures
# **********************************************
org 0x30
# ########################################################
#
# Calling sequence: push value to be multiplied
# call Mult10
#
# Return: value*10 in RA
#
# Registers Used: R6 and R7
#
# ########################################################
Mult10:
push RBP
move RBP,RSP
rload R6,2[RBP]
# STUDENT COMPLETE HERE
move RSP,RBP
pop RBP
ret 1
# ########################################################
#
# Calling sequence: push value to be divided
# call DivU10
#
# Return: quotient in RA, remainder in RB
#
# Registers Used: R6, R7, R8, and R9
#
# ########################################################
DivU10:
push RBP
move RBP,RSP
push R0
rload R6,2[RBP]
# STUDENT COMPLETE HERE
normalReturn: pop R0
move RSP,RBP
pop RBP
ret 1
# ########################################################
#
# Calling sequence: push address of message
# call printMessage
#
# Return: message displayed on console
#
# Registers Used: R6, R7
#
# ########################################################
PrintMessage:
push RBP
move RBP,RSP
push R0
rload R6,2[RBP]
load R0,0
# STUDENT COMPLETE HERE
msgReturn: pop R0
move RSP,RBP
pop RBP
ret 1
# ########################################################
#
# Calling sequence: push value to be displayed
# call PrintByte
#
# Return: displays value of a byte as
# ASCII characters on console -- RECURSIVELY
#
# Registers Used: R6 and R7
#
# ########################################################
PrintByte:
push RBP
move RBP,RSP
push R0
rload R6,2[RBP]
load R0,10
jmpLT R6<R0,singleDigit
# STUDENT COMPLETE HERE
singleDigit:
pop R0
load R7,0x30
or RF,R7,R6 # display ASCII of digit
printReturn:
move RSP,RBP
pop RBP
ret 1
:wq
