x86 assembly hello world

Expensive Earthworm answered on January 23, 2022 Popularity 10/10 Helpfulness 5/10

answer x86 assembly hello world

x86 assembly hello world

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; ----------------------------------------------------------------------------------------
; Writes "Hello, World" to the console using only system calls. Runs on 64-bit Linux only.
; To assemble and run:
;
;     nasm -felf64 hello.asm && ld hello.o && ./a.out
; ----------------------------------------------------------------------------------------

          global    _start

          section   .text
_start:   mov       rax, 1                  ; system call for write
          mov       rdi, 1                  ; file handle 1 is stdout
          mov       rsi, message            ; address of string to output
          mov       rdx, 13                 ; number of bytes
          syscall                           ; invoke operating system to do the write
          mov       rax, 60                 ; system call for exit
          xor       rdi, rdi                ; exit code 0
          syscall                           ; invoke operating system to exit

          section   .data
message:  db        "Hello, World", 10      ; note the newline at the end

Popularity 10/10 Helpfulness 5/10 Language assembly

Source: cs.lmu.edu

Tags: assembly x86

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Contributed on Jan 23 2022

Expensive Earthworm

0 Answers Avg Quality 2/10

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