Substitution for %hi and %lo in MIPS

Question

lui     $a0,%hi(grid)
lw      $v1,24($fp)
nop   
move    $v0,$v1
sll     $v0,$v0,4
subu    $v0,$v0,$v1
addiu   $v1,$a0,%lo(grid)
addu    $v1,$v0,$v1
lw      $v0,28($fp)
nop
addu    $2,$3,$2
li      $3,3                        # 0x3
sb      $3,0($2)  

lui     $v0,%hi(rows)
lb      $v0,%lo(rows)($v0)
nop

sw      $v0,32($fp)

and

lui     $v0,%hi(rows)
lb      $v0,%lo(rows)($v0)
nop

sw      $v0,32($fp)

Also error for this code:

bne     $v0,$zero,1f

spim: (parser) syntax error on line 183 of file cubic.s bne $v0,$zero,1f

What can I do to modify the %hi and %lo in my first code, and could someone please explain the spim error. Thank you!