title: parser: instruction expected on move instruction
body: <p>I'm trying to make a simple assembly program that is to add two numbers and display them, and then subtract two numbers and display them. But I'm getting there errors :</p>
  
  <pre><code>oppgave3.asm:28: error: parser: instruction expected
  oppgave3.asm:29: error: comma, colon, decorator or end of line expected after operand
  oppgave3.asm:30: error: symbol `move' redefined
  oppgave3.asm:30: error: parser: instruction expected
  oppgave3.asm:31: error: comma, colon, decorator or end of line expected after operand
  oppgave3.asm:32: error: comma, colon, decorator or end of line expected after operand
  oppgave3.asm:33: error: comma, colon, decorator or end of line expected after operand
  oppgave3.asm:37: error: symbol `move' redefined
  oppgave3.asm:37: error: parser: instruction expected
  oppgave3.asm:38: error: comma, colon, decorator or end of line expected after operand
  oppgave3.asm:39: error: symbol `move' redefined
  oppgave3.asm:39: error: parser: instruction expected
  oppgave3.asm:40: error: comma, colon, decorator or end of line expected after operand
  oppgave3.asm:41: error: comma, colon, decorator or end of line expected after operand
  oppgave3.asm:42: error: comma, colon, decorator or end of line expected after operand
  </code></pre>
  
  <p>This is what I'm trying to do: I have two subroutines, one for addition and one for substraction.</p>
  
  <pre><code>section .data
  a dw 4
  b dw 2
  
  
  section .bss
  c resb 1
  
  section .text
  global_start:
  _start:
  
  call addition
  mov eax,4
  mov ebx,1
  mov ecx,c
  mov edx,1
  int 0x80
  
  call subtraction
  mov eax,4
  mov ebx,1
  mov ecx,c
  mov edx,1
  int 0x80
  
  addition:
  move eax,[a]
  sub eax '0'
  move ebx,[b]
  sub ebx '0'
  add eax and ebx
  add eax '0'
  mov [c],eax
  ret
  
  subtraction:
  move eax,[a]
  sub eax '0'
  move ebx,[b]
  sub ebx '0'
  sub eax and ebx
  add eax '0'
  mov [c],eax
  ret
  </code></pre>