Question

Edit: Not sure what more information you need.

Write a MIPS assembly program to determine the range between pairs of numbers. Keep things very basic with instructions such as load (lw), store (sw), add (addi and add), subtract (sub), multiplication (mul), branch (beq and bne), jump (j), and set on less than (slt) instructions. Your program should meet the following functional requirements:

• Input: an arbitrary number of integer pairs (in all pairs, the first number will be the max value)
• Output: for each pair, output the range
• You may assume an even number on input values

Answer 1

li $8, 30 # maximum number even
li $9, 0 # initial number maximum range is 15. because 0,2,4,6,8,10,12,14,16,18,20,22,24,26,28
li $10,0 #for counting the number of range
li $11,2 #to determine even number

loop:
bgt $9,$8,exitloop # if intial value greater than maximum value then exit the loop
div $9,$11 # division by 2
mfhi $12 #reminder in $12
beq $12,$0,loopeven #reminder checking. if reminder equal to 0 then count incremented by 1
addi $9,$9,1 #incremeny by 1 for next number
b loop #Repeat the loop until condition satisfy

loopeven:
addi $10,$10,1 # increment the counter by 1
addi $9,$9,1   #incremeny number by 1 for next number
b loop # Repeat the loop untill value greater than maximum value

exitloop:

exit statement