block0:
        .count words f1 b0end # length of block 0
        .word 0x00800000      # block starting address
        .address 0x00800000   # sets the address of the next word
                              # to be this value.
f1:     .word 1
f2:     .word 2
f3:     .word 3
b0end:  .word 100
.address 0x00400000

main:
    addiu $a1, $zero, 0x0
    addiu $a2, $zero, 0x0
    addiu $a3, $zero, 0x0
add1:
    addiu $a1, $a1, 0x1
    addiu $a2, $a2, 0x1
    addiu $a3, $a3, 0x1
    jal add1