
;--- "hello world" for 64-bit Linux, using SYSCALL.
;--- assemble: JWasm -elf64 -Fo=Lin64_1.o Lin64_1.asm
;--- link:     gcc Lin64_1.o -o Lin64_1

stdout    equ 1
SYS_WRITE equ 1
SYS_EXIT  equ 60

    .data

string  db 10,"Hello, world!",10

    .code

_start:
    mov edx, sizeof string
    mov rsi, offset string
    mov edi, stdout
    mov eax, SYS_WRITE
    syscall
    mov eax, SYS_EXIT
    syscall

    end _start
