Hello World WriteConsoleA

global _start
extern ExitProcess, GetStdHandle, WriteConsoleA

section .data
msg db "Hello World!", 10
len equ $ - msg

section .bss
dummy  resd 1

section .text
_start:
    push    -11          ; STD_OUTPUT_HANDLE: -11 - standard output, -10: standard input,  -12: standard error
    call    GetStdHandle ; GetStdHandle - Retrieves a handle to the specified standard device

    push    0             ; lpReserved: reserved - must be NULL
    push    dummy         ; A pointer to a variable that receives the number of characters actually written.
    push    len           ; the length of the message
    push    msg           ; the message to write
    push    eax           ; handle to the console screen buffer
    call    WriteConsoleA

    push    0
    call    ExitProcess

; nasm -f win32 hello_world.asm -o hello_world.obj
; GoLink.exe /console /entry _start hello_world.obj kernel32.dll