logo Use CA10RAM to get 10%* Discount.
Order Nowlogo
(5/5)

creating a scoreboard system for the de10- lite using the nios ii processor

INSTRUCTIONS TO CANDIDATES
ANSWER ALL QUESTIONS

.equ IO_BASE,   0xff200000 

.equ LED,       0x00

.equ SWITCH,  0x40

.equ SEG1,    0x20

.equ SEG2,    0x30

.equ TIME,      0x2000

.equ TIME1,   0x2000

.equ TIME2,   0x2020

.equ TIME_CTRL, TIME+0x4

.equ TIME_LO,   TIME+0x8

.equ TIME_HI,   TIME+0xc

.equ TIME_START, 400000000  # time

.equ TOS, 0x03000000

 

.macro push reg

subi sp, sp, 4

stw \reg, 0(sp)

.endm

 

.macro pop reg

ldw \reg, 0(sp)

addi sp, sp, 4

.endm

 

.global _start

_start:

movia sp,  TOS

movia r23, IO_BASE

movi r2, 1  # start LED bit

movi r3, 0 # move LED 

movi r4, rand_numb #random numb

movi r5, 0 #initalize switch 

movi r6, 0 #initalize 7 seg display

loop:  

call start_timer 

call random          # generate random number

ldw r4, rand_numb(r0)# load it from memory

or r2, r8, r2 

stwio r2, LED(r23)

movi r8, 1 # bitmsk for conversion

check_timer:

ldwio r7, TIME(r23)   # check if timer is on  

cmpeqi r7, r7, 0b10 # if not branch to add_LED

bne r7, r0, check_timer   #

br check_switch 

check_switch:

ldwio r5, SWITCH(r23) #\

ldwio r2, LED(r23)   # compare switch position to LED 

cmpeq r6, r5, r2      #/

beq r5, r2, add_point  # if equal add point 

br add_LED            # else add another LED 

 

add_LED:

beq r4,r0, loop 

slli r8,r8,1

subi r4,r4, 1

br add_LED

 

add_point:

#code here

 

start_timer:

push r2                    # stack

stwio r0, TIME(r23)        # reset timer

movi  r2, %lo(TIME_START)

sthio r2, TIME_LO(r23)     # low half start value

movi  r2, %hi(TIME_START)  

sthiO r2, TIME_HI(r23)     # high half start value 

movi  r2, 0b0100      # start mask

sthio r2, TIME_CTRL(r23)   # start timer 

pop   r2                   # unstack

ret

  

random:

push   r16                 # stack

push   r17                 #

ldw    r16, rand_seed(r0)  #  / fetch seed

addi   r16, r16, 1         # /

movia  r17, 3141592621     #|  make new seed

mul    r16, r16, r17       # \ 

stw    r16, rand_seed(r0)  #  \ store new seed

ldw    r17, rand_max(r0)   # generate number

mulxuu r16, r16, r17       # by pulling the hi 32-bits 

stw    r16, rand_numb(r0)  # random number stored in "rand"

pop    r17                 # unstack 

pop    r16                 # 

ret

 

.org 0x1000

.data

rand_max:  .word 10  # maximum number (e.g. 100 gets 0-99)

rand_seed: .word 07252000  # seed for random number generator

rand_numb: .word 0        # store random number here

seg7_numbers: .byte 0x3f, 0x06, 0x5b, 0x4f, 0x66, 0x6d, 0x7c, 0x07, 0x7f, 0x6f

                 #  0     1     2     3     4     5     6     7     8     9    

 

 

(5/5)
Attachments:

Related Questions

. Introgramming & Unix Fall 2018, CRN 44882, Oakland University Homework Assignment 6 - Using Arrays and Functions in C

DescriptionIn this final assignment, the students will demonstrate their ability to apply two ma

. The standard path finding involves finding the (shortest) path from an origin to a destination, typically on a map. This is an

Path finding involves finding a path from A to B. Typically we want the path to have certain properties,such as being the shortest or to avoid going t

. Develop a program to emulate a purchase transaction at a retail store. This program will have two classes, a LineItem class and a Transaction class. The LineItem class will represent an individual

Develop a program to emulate a purchase transaction at a retail store. Thisprogram will have two classes, a LineItem class and a Transaction class. Th

. SeaPort Project series For this set of projects for the course, we wish to simulate some of the aspects of a number of Sea Ports. Here are the classes and their instance variables we wish to define:

1 Project 1 Introduction - the SeaPort Project series For this set of projects for the course, we wish to simulate some of the aspects of a number of

. Project 2 Introduction - the SeaPort Project series For this set of projects for the course, we wish to simulate some of the aspects of a number of Sea Ports. Here are the classes and their instance variables we wish to define:

1 Project 2 Introduction - the SeaPort Project series For this set of projects for the course, we wish to simulate some of the aspects of a number of

Ask This Question To Be Solved By Our ExpertsGet A+ Grade Solution Guaranteed

expert
Um e HaniScience

840 Answers

Hire Me
expert
Muhammad Ali HaiderFinance

831 Answers

Hire Me
expert
Husnain SaeedComputer science

512 Answers

Hire Me
expert
Atharva PatilComputer science

952 Answers

Hire Me

Get Free Quote!

372 Experts Online