# ECE3055 SPIM Programming Assignment 1
# Name:         YOUR NAME HERE.  Spring 2003
# Section:      YOUR SECTION HERE
        
# Global Data Segment
.data
array1: 
        .word   10,10,20,20,30,30,40,40,0
array2: 
        .word   1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,0
array3: 
        .word   0        
array4: 
        .word   0xf, 0xf0, 0xf00, 0xf000, 0xf0000
        .word   0xf00000, 0xf000000, 0xf0000000, 1, 0
array5: 
        .word   0xf0, 0xf00, 0xf000, 0xf0000
        .word   0xf00000, 0xf000000, 0xf0000000, 1, 0

Array1R:        .asciiz "Results from array1\n"
Array2R:        .asciiz "Results from array2\n"
Array3R:        .asciiz "Results from array3\n"
Array4R:        .asciiz "Results from array4\n"
Array5R:        .asciiz "Results from array5\n"
PressKey:       .asciiz "Press any key to continue\n"
AllDone:        .asciiz "Exiting....\n"
        
.text

.globl main
main:
        la      $a0 array1      # Address of array1
        jal     Compute
        la      $a0,Array1R
        li      $v0,4           # Output string syscall code
        syscall
        jal     PrintResults
        jal     GetKey
        
        la      $a0 array2      # Address of array2
        jal     Compute
        la      $a0,Array2R
        li      $v0,4           # Output string syscall code
        syscall
        jal     PrintResults
        jal     GetKey
        
        la      $a0 array3      # Address of array3
        jal     Compute
        la      $a0,Array3R
        li      $v0,4           # Output string syscall code
        syscall
        jal     PrintResults
        jal     GetKey
        
        la      $a0 array4      # Address of array4
        jal     Compute
        la      $a0,Array4R
        li      $v0,4           # Output string syscall code
        syscall
        jal     PrintResults
        jal     GetKey
        
        la      $a0 array5      # Address of array5
        jal     Compute
        la      $a0,Array5R
        li      $v0,4           # Output string syscall code
        syscall
        jal     PrintResults
        jal     GetKey
        
#       Notify operating system program is done
        la      $a0,AllDone     # Address of all done prompt
        li      $v0,4           # Output string syscall code
        syscall
        li      $v0,10		# exit
        syscall
        
# Subroutine GetKey
# Wait for a user keystroke
        
GetKey:
        la      $a0,PressKey    # Address of press key prompt
        li      $v0,4           # Output string syscall code
        syscall
        
#        li      $v0,12          # Read character
        li      $v0,5           # Read integer
        syscall                 # Wait for user input
        jr      $ra
        
# Subroutine Compute
# Compute the count, sum, average, min and max of values in an array
# Entry:      a0 = address of array
#             The array is of variable length, terminated with a 0 word
#
Compute:
# YOUR CODE HERE
        jr      $ra             # Return

# Subroutine PrintResults
# This should print:    
#        "Sum is xxx"
#        "Number entries is xxx"
#        "Average is xxx"
#        "Minimum is xxx"
#        "Maximum is xxx"
PrintResults:   
# YOUR CODE HERE
        jr      $ra