# access fields of a simple struct

# struct details {
#     uint16_t  postcode;
#     char      first_name[7];
#     uint32_t  zid;
# };

# offset in bytes of fields of struct details

DETAILS_POSTCODE   = 0
DETAILS_FIRST_NAME = 2
DETAILS_ZID        = 12

main:
    la   $t0, student           # printf("%d", student.zid);
    addi $t1, $t0, DETAILS_ZID
    lw   $a0, ($t1)
    li   $v0, 1
    syscall

    li   $a0, ' '               #   putchar(' ');
    li   $v0, 11
    syscall

    la   $t0, student           # printf("%s", student.first_name);
    addi $a0, $t0, DETAILS_FIRST_NAME
    li   $v0, 4
    syscall

    li   $a0, ' '               #   putchar(' ');
    li   $v0, 11
    syscall

    la   $t0, student           # printf("%d", student.postcode);
    addi $t1, $t0, DETAILS_POSTCODE
    lhu  $a0, ($t1)
    li   $v0, 1
    syscall

    li   $a0, '\n'              #   putchar('\n');
    li   $v0, 11
    syscall

    li   $v0, 0                 # return 0
    jr   $ra

.data

student:                 # struct details student = {2052, "Andrew", 5123456};
     .half 2052
     .asciiz "Andrew"
     .space 3            # struct padding to ensure zid field is ona 4-byte boundary
     .word 5123456