Date: Thu, 2 Dec 1999 22:19:17 -0200 (EDT) From: Carlos Antonio Ruggiero <toto@if.sc.usp.br> To: freebsd-questions@freebsd.org Subject: Re: Hello World in Assembler Message-ID: <199912030019.WAA22111@ultra3000.if.sc.usp.br>
next in thread | raw e-mail | index | archive | help
Just in case anyone is interested... The following program solves the problem I posted (Hello World in assembly language without using C): section .data msg db "Hello World",0x0A len equ $ - msg section .text global _start _start: push long len ; 3rd parameter: length of string push long msg ; 2nd parameter: address of string push long 1 ; 1st parameter: standard output push long there ; return address mov eax,4 ; System call #4 (see /usr/include/sys/syscall.h) int 0x80 ; call kernel there: mov eax,1 ; System call #1 (SYS_exit) push long 0 int 0x80 It can be assembled and linked with nasm and ld: nasm -f elf -o hello.o hello.asm ld -o hello hello.o Toto toto@ifsc.sc.usp.br To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199912030019.WAA22111>