我正在完成一项任务（此处描述：Overflow problems with summing squares）并且我已经解决了溢出问题。现在的新问题是MARS并不想跟随分支机构，即使满足它们的条件，总是按照MARS。
代码在这里：
squaredSum:
beq $t5, $zero, getRetAddr # if $t5 (caller's ret. addr.) is zero (ie. first time the function is called, then get the caller's ret. addr.)
move $t0, $a1 # $t0: array size (we want to turn it into bytes)
sll $t0, $t0, 2 # multiply array size by 4, so we get the total number of bytes (2 left bitwise shifts)
beq $t1, $t0, sumExit # if offset ($t1) = bytes, then end of array, so we terminate (jump to "exit" label)
addu $t2, $t1, $a0 # $t2: address from which we start reading (base + offset)
lw $t3, 0($t2) # $t3: the number to be squared is loaded here
multu $t3, $t3 # multiply $t3 with itself (square), result of multiplication goes to internal registers HI and LO
mfhi $t8 # load HI's contents into $t8
mflo $t9 # load LO's contents into $t9
addiu $t1, $t1, 4 # add 4 to offset (move to next element, since numbers are 32bit)
jal adduover # call adduover to sum the newly found square
j squaredSum # go back to the beginning of the loop
adduover:
addu $t7, $t7, $t9 # add LO to $t7
addu $t6, $t6, $t8 # add HI to $t6
*blt $t7, $t9, correction* # if total sum of LO is lower than LO before summation (32-bit overflow) then jump to label "correction"
*blt $t6, $t8, overflow* # if total sum of HI is lower than HI before summation (64-bit overflow) then jump to label "overflow"
jr $ra # get back to squaredSum
correction:
addiu $t6, $t6, 1 # add 1 to the most significant bits (we made a full circle)
blt $t6, $t8, overflow # check once more for 64-bit overflow after the addition
jr $ra # get back to squaredSum
overflow:
li $v0, 3735928559 # return as result (0x00000000DEADBEEF) in case of 64-bit overflow
j sumExit # jump to sumExit
getRetAddr:
move $t5, $ra # get the return addr. of squareSum's caller, because it gets overwritten during execution
j squaredSum # continue with squaredSum
sumExit:
move $v0, $t7 # send least significant 32 bits to $v0 (exercise output)
move $v1, $t6 # same as above for most significant
jr $t5 # return to squaredSum's caller's address