PCSpim - Assembly

#debai: f = g - A[B[k]]; Trong do: f,g,k,A,B duoc luu tru o $s0, $s1, $s2, $s3, $s4

li   $s4, 0x10000000# address of B
li   $s3, 0x10020000# address of A

li   $t0, 1         # load 1 into $t0

sw   $t0, 0($s4)    # store 1 to B(0)
add  $t0, $t0, 1    # $t0 = $t0 + 1
sw   $t0, 4($s4)    # store 2 to B(1)
add  $t0, $t0, 1    # $t0 = $t0 + 1
sw   $t0, 8($s4)    # store 3 to B(2)
add  $t0, $t0, 1    # $t0 = $t0 + 1
sw   $t0, 12($s4)    # store 4 to B(3)
add  $t0, $t0, 1    # $t0 = $t0 + 1
sw   $t0, 16($s4)    # store 5 to B(4)

li   $s2, 2            # k($s2) = 2
add  $s1, $s2, 1    # g($s1) = $s2 + 1 = 3


li   $t0, 5         # load 5 into $t0
sw   $t0, 0($s3)    # store 5 to A(0)
add  $t0, $t0, 1    # $t0 = $t0 + 1
sw   $t0, 4($s3)    # store 6 to A(1)
add  $t0, $t0, 1    # $t0 = $t0 + 1
sw   $t0, 8($s3)    # store 7 to A(2)
add  $t0, $t0, 1    # $t0 = $t0 + 1
sw   $t0, 12($s3)    # store 8 to A(3)
add  $t0, $t0, 1    # $t0 = $t0 + 1
sw   $t0, 16($s3)    # store 9 to A(4)
add  $t0, $t0, 1    # $t0 = $t0 + 1
sw   $t0, 20($s3)    # store 10 to A(5)

add  $t1, $s2, $s2  # k = k * 2
add  $t1, $t1, $t1  # k = old k * 4
add  $t1, $t1, $s4  # address of B[k]

lw   $t0, 0($t1)    # load B[k]
add  $t0, $t0, $t0  # $t0 = $t0 * 2
add  $t0, $t0, $t0  # $t0 = old $t0 * 4
add  $t0, $t0, $s3  # $t0 = $t0 + A
lw   $t1, 0($t0)    # load A[B[k]]
sub  $s0, $s1, $t1  # f = g - A[B[k]]