format PE CONSOLE 4.0
entry start

include 'win32a.inc'
TEXTSIZE equ 6

section '.text' code readable executable

  start:
    stdcall main

    invoke getchar
    invoke ExitProcess, 0

proc main

    stdcall memCopy, source, destination, TEXTSIZE
    ret

endp

proc memCopy source:DWORD, destination:DWORD, size:DWORD

    mov esi,[source]
    mov edi,[destination]
    mov ecx,[size]
    rep movsb
    ret

endp

section '.data' data readable writeable

  source db 'hello',0
  destination rb TEXTSIZE

section '.idata' import data readable writeable

  library kernel,'KERNEL32.DLL',\
          msvcrt,'MSVCRT'

  import kernel,\
         ExitProcess,'ExitProcess'

  import msvcrt,\
         getchar,'_fgetchar'