; uasm -Fo hellon6u.o -elf64 -q -mf -Fl -Sa -zcw -Zd hellon6u.s
; tail -4 hellon6u.s | as -o ident.o -
; ld -o hello hellon6u.o ident.o

.code
public	_start,main
_start:			; Entry point
main:			; gdb breakpoint
	MOV	RAX,4	; SYS_write (see /usr/include/sys/syscall.h)
	MOV	RDI,1	; File descriptor 1: stdout (standard output)
	MOV	RSI,OFFSET MSG; String address
	MOV	RDX,LEN	; String length
	SYSCALL		; Call the corresponding OS kernel function
	MOV	RAX,1	; SYS_exit (process termination)
	SYSCALL
.data
MSG	db 'Hello, world!',10,10
	LEN equ $ - MSG
end

.section ".note.netbsd.ident", "a"
	.int	7,4,1
	.ascii	"NetBSD\0\0"
	.int	200000000 # Version 2.0 is the first one ported to AMD64