0x12345678 as a SINGLE hexadecimal number

0x12 as four individual byte, high byte high
0x34
0x56
0x78

0x78 0x56 0x34 0x12 as four individual bytes, low byte left

'Tak'

sub1: 
  oldBP = 0 
  retAddr = oldBP + 4 
  p1 = retAddr + 4 
  p2 = p1 + 2 
  pushl %ebp 
  movl %esp,%ebp 
  movl $0,%eax 
  movw p2(%ebp),%ax 
  addw p1(%ebp),%ax 
  movl %ebp,%esp 
  popl %ebp 
  ret
  
  
  
45 6 0 12 5 20
^  ^
|  |
a  b

6 45 0 12 5 20
a    b

0 45 6 12 5 20
a       b
          b
	     b  
	        b