Console Hello World

                                                           format PE64 Console 5.0
entry Start

include 'win64a.inc'

section '.text' code readable executable

Start:
  invoke SetConsoleTitleA, conTitle
  test eax, eax
  jz Exit

  invoke GetStdHandle, [STD_OUTP_HNDL]
  mov [hStdOut], eax

  invoke GetStdHandle, [STD_INP_HNDL]
  mov [hStdIn], eax

  invoke WriteConsoleA, [hStdOut], mes, mesLen, chrsWritten, 0

  invoke ReadConsoleA, [hStdIn], readBuf, 1, chrsRead, 0

Exit:
  invoke  ExitProcess, 0

section '.data' data readable writeable

  conTitle    db 'Console', 0
  mes         db 'Hello World!', 0dh, 0ah, 0
  mesLen      = $-mes

  hStdIn      dd 0
  hStdOut     dd 0
  chrsRead    dd 0
  chrsWritten dd 0

  STD_INP_HNDL  dd -10
  STD_OUTP_HNDL dd -11

section '.bss' readable writeable

  readBuf  db ?

section '.idata' import data readable

  library kernel,'KERNEL32.DLL'

  import kernel,\
    SetConsoleTitleA, 'SetConsoleTitleA',\
    GetStdHandle, 'GetStdHandle',\
    WriteConsoleA, 'WriteConsoleA',\
    ReadConsoleA, 'ReadConsoleA',\
    ExitProcess, 'ExitProcess'