See below.
The count is increased by one. The pointer is increased by four. Next get the current array element and add it to the sum of all integers.
## Registers:
## $8 --- count $12 -- sum of negative integers
## $9 --- pointer to the array entry $13 -- sum of positive integers
## $10 -- current array entry $14 -- pos. or neg. flag
## $11 -- sum of all integers $15 -- SIZE of the array
main: ori $8,$0,0 # count = 0
ori $11,$0,0 # sum = 0
ori $12,$0,0 # neg = 0
ori $13,$0,0 # pos = 0
lui $9,0x1000 # point at SIZE
lw $15,0($9) # get SIZE
addiu $9,$9,4 # point to first entry
# while count < SIZE do
loop: beq $8,$15,done
sll $0,$0,0 # branch delay
# get entry, add to sum
lw $10,____($____) # get entry
sll $0,$0,0 # load delay
addu $11,$____,$____ # add to sum
addiu $8,$8,1 # count++
addiu $9,$9,4 # point at next entry
j loop
sll $0,$0,0 # branch delay
done: sll $0,$0,0 # target for branch
.data
size: .word 17
array: .word 12, -1, 8, 0, 6, 85, -74, 23, 99, -30, 30, 95, 4, 7, 10, 28, 14