Assembly - Program finds the maximum number of an abstract data set

maximum.s

#Counting Program
#Purpose: This program finds the maximum number of set of data items.

#VARIABLES: The registers have the following uses:
# %edi -  Holds the index of the data item being examined
#  %ebx = Largest data item found
#  %eax - Current data item

#The following memory locations are used:
# data_items - contains the item data.  A 0 is used to terminate the data.

.section .data

data_items:
.long 3,67,34,222,45,54,34,45,75,44,33,22,11,66,0

.section  .text

.globl _start
_start:
movl $0,  %edi				# move 0 into the index register
mov1 data_items(, %edi, 4), %eax		#load the first byte of data
mov1 %eax, %ebx				#since tis is the first item, %eax is the biggest

start_loop:					#start loop
cmp1 $0, %eax				#check to see if we've hit the end
je loop_exit					
incl  %edi					#load next value
mov1  data_items(,%edi,4), %eax
cmp1  %ebx, %eax				#compare values
jle  start_loop					#jump to loop beginning of the new one isn't bigger

movl %eax, %ebx				#move the value as the largest
jmp start_loop					#jump to loop beginning

loop_exit:
# %ebx is the status code for the exit system call and it already has the maximum number
movl $1, %eax				#1 is the exit()  syscall
int $0x80

Now assemble and link it 
as  maximum.s  -0  maximum.o
ld  maximum.o  -0  maximum