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codetalks-new/hello_world.asm

Created August 17, 2015 07:21
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HelloAssembley OS X from https://lord.io/blog/2014/assembly-on-osx/ with a small bug fix
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hello_world.asm
%define SYSCALL_WRITE 0x2000004
%define SYSCALL_EXIT 0x2000001
global start
start:
mov rdi, 1
;mov rsi, str
lea rsi, [rel str]
mov rdx, strlen
mov rax, SYSCALL_WRITE
syscall
mov rax, SYSCALL_EXIT
mov rdi, 0
syscall
section .data
str:
db `Hello, assembly!\n` ; to use escape sequences, use backticks
strlen equ $ - str
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