[40] Implement a guessing game in MIPS, where you pick a number between 1 and 10

Question

[40] Implement a guessing game in MIPS, where you pick a number between 1 and 100, and the computer tries to guess your number. After each guess, you should specify whether your secret number is higher or lower than the computer's guess. The computer's guess should be a random number between the known maximum and minimum values. For example, if your secret number is 55, the computer would begin by guessing a random value from 1 to 100. Depending on the result, its guess may be higher or lower than 55, to which you would input "h" or "". Let's say the computer guesses 42. You would input "h". The new lower bound is 42, and upper bound is still 100. The computer's next guess would be between 43 and 100. This continues until the computer guesses your number-for this, you will enter "X" to indicate the game is over. The program should then print a message that includes the number of guesses it took (e.g. "Yay! I got it in tries!"). You will need to use syscalls for printing a string to the console, reading a character from the console, and generating a random number. These can be found in the syscall reference posted on Canvas. There is also a MIPS instruction reference in the book that will be useful for checking available instructions and instruction formats 2. Partial credit will be given as follows: [5] printing to the console, [5] reading from the console into memory, [5] generating random numbers, [15] core game logic (adjusting random number bounds based on user input), [5] end of game message and # tries counter. A program that integrates all components and functions as described above will receive full credit.

Explanation / Answer

ScreenShot

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Program

#Data declaration
.data
high: .asciiz "h "
low: .asciiz "l "
result: .asciiz "yay! I got it in "
remain: .asciiz " tries! "
prompt: .asciiz "Enter a number between 1-100(inclusive):"
errorMessage: .asciiz "Input should be 1-100 "
exitPrompt: .asciiz "Do you want to continue(x for exit): "
bye: .asciiz " Good Bye!!"
#Main program
.text
#Loop until user enter 'x'
input:
    #User input
    la $a0,prompt
    li $v0,4
    syscall
    #read data
    li $v0,5
    syscall
    #If user not enter between 1-100 error
    blt $v0,1,error
    bgt $v0,100,error
    #Otherwise store user input in s0
    move $s0,$v0
    #Counter
    li $s1,1
    #for lowest bount
    li $t0,1
random:
    #random generation
    li $v0, 42
    #Max bound
    li $a1, 100
    syscall
    #lowest bound
    add $a0, $a0,$t0
    #check guess is correct or not
    beq $a0,$s0,printResult
    #Increment count
    addi $s1,$s1,1
    #Check the guess lesser or greater
    blt $a0,$s0,printHigh
    bgt $a0,$s0,printLow
#Is result low print low
printLow:
     move $a1,$a0
     la $a0,low
     li $v0,4
     syscall
     j random
#Is result high print high
printHigh:
     move $t0,$a0
     la $a0,high
     li $v0,4
     syscall
     j random
#print result (count of tries)
printResult:
     la $a0,result
     li $v0,4
     syscall
     move $a0,$s1
     li $v0,1
     syscall
     la $a0,remain
     li $v0,4
     syscall
     j exitLoop
#Prompt user to continue or exit
exitLoop:
    la $a0,exitPrompt
    li $v0,4
    syscall
    li $v0,12
    syscall
    beq $v0,120,end
    j input
#'x' input then display bye and exit
end:
    la $a0,bye
    li $v0,4
    syscall
    #end of the program
    li $v0,10
    syscall
#Error message
error:
    la $a0,errorMessage
    li $v0,4
    syscall
    j input

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Output

Enter a number between 1-100(inclusive):24
yay! I got it in 1 tries!
Do you want to continue(x for exit): x
Good Bye!!
-- program is finished running --

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