.globl _start
        .section .text
_start:
        leaq people, %rbx                       # pointer to people record
        leaq numpeople, %rcx                    # number of people in rcx
        xor %rdi, %rdi                          # zero rdi for the comparison later
        xor %r10, %r10                          # zero string char counter
mainloop:
        movq NAME_OFFSET(%rbx), %rdx            # name offset (0) of people into rdx
innerloop:
        movb (%rdx), %al
        cmp $0, %al                             # check for null char
        je end_of_string                        # loop over bytes
        incq %r10                               # increment character counter
        incq %rdx                               # next byte
        jmp innerloop
end_of_string:
        cmp %rdi, %r10
        jbe skip_over
        movq %r10, %rdi
skip_over:
        addq $PERSON_RECORD_SIZE, %rdx          # next person in record
        loopq mainloop                          # decrement number of people in rcx and start all over again

        movq $60, %rax
        syscall