1*a5847cc3Sjmmv# $NetBSD: powerpc.s,v 1.1 2011/11/12 01:18:41 jmmv Exp $ 2*a5847cc3Sjmmv# 3*a5847cc3Sjmmv# Copyright (c) 2011 The NetBSD Foundation, Inc. 4*a5847cc3Sjmmv# All rights reserved. 5*a5847cc3Sjmmv# 6*a5847cc3Sjmmv# Redistribution and use in source and binary forms, with or without 7*a5847cc3Sjmmv# modification, are permitted provided that the following conditions are 8*a5847cc3Sjmmv# met: 9*a5847cc3Sjmmv# 10*a5847cc3Sjmmv# 1. Redistributions of source code must retain the above copyright 11*a5847cc3Sjmmv# notice, this list of conditions and the following disclaimer. 12*a5847cc3Sjmmv# 2. Redistributions in binary form must reproduce the above copyright 13*a5847cc3Sjmmv# notice, this list of conditions and the following disclaimer in the 14*a5847cc3Sjmmv# documentation and/or other materials provided with the distribution. 15*a5847cc3Sjmmv# 16*a5847cc3Sjmmv# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17*a5847cc3Sjmmv# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18*a5847cc3Sjmmv# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 19*a5847cc3Sjmmv# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR 20*a5847cc3Sjmmv# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 21*a5847cc3Sjmmv# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 22*a5847cc3Sjmmv# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 23*a5847cc3Sjmmv# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 24*a5847cc3Sjmmv# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 25*a5847cc3Sjmmv# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 26*a5847cc3Sjmmv# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27*a5847cc3Sjmmv# 28*a5847cc3Sjmmv 29*a5847cc3Sjmmv# ------------------------------------------------------------------------ 30*a5847cc3Sjmmv 31*a5847cc3Sjmmv.section ".note.netbsd.ident", "a" 32*a5847cc3Sjmmv # This ELF section is used by the kernel to determine, among other 33*a5847cc3Sjmmv # things, the system call interface used by the binary. 34*a5847cc3Sjmmv # 35*a5847cc3Sjmmv # See http://www.netbsd.org/docs/kernel/elf-notes.html for more 36*a5847cc3Sjmmv # details. 37*a5847cc3Sjmmv 38*a5847cc3Sjmmv .int 7 # Length of the OS name field below. 39*a5847cc3Sjmmv .int 4 # Length of the description field below. 40*a5847cc3Sjmmv .int 0x01 # The type of the note: NetBSD OS Version. 41*a5847cc3Sjmmv .ascii "NetBSD\0\0" # The OS name, padded to 8 bytes. 42*a5847cc3Sjmmv .int 0x23b419a0 # The description value; 5.99.56. 43*a5847cc3Sjmmv 44*a5847cc3Sjmmv# ------------------------------------------------------------------------ 45*a5847cc3Sjmmv 46*a5847cc3Sjmmv.section ".data" 47*a5847cc3Sjmmv 48*a5847cc3Sjmmvmessage: 49*a5847cc3Sjmmv .ascii "Hello, world!\n" 50*a5847cc3Sjmmv .set MESSAGE_SIZE, . - message 51*a5847cc3Sjmmv 52*a5847cc3Sjmmv# ------------------------------------------------------------------------ 53*a5847cc3Sjmmv 54*a5847cc3Sjmmv.section ".text" 55*a5847cc3Sjmmv 56*a5847cc3Sjmmv .balign 4 57*a5847cc3Sjmmv 58*a5847cc3Sjmmv .globl _start 59*a5847cc3Sjmmv .type _start, @function 60*a5847cc3Sjmmv_start: 61*a5847cc3Sjmmv # write(STDOUT_FILENO, message, MESSAGE_SIZE) 62*a5847cc3Sjmmv li %r0, 4 # r0: write(2) syscall number. 63*a5847cc3Sjmmv li %r3, 1 # r3: first argument. 64*a5847cc3Sjmmv addis %r4, %r0, message@h # r4: second argument. 65*a5847cc3Sjmmv ori %r4, %r4, message@l 66*a5847cc3Sjmmv li %r5, MESSAGE_SIZE # r5: third argument. 67*a5847cc3Sjmmv sc 68*a5847cc3Sjmmv 69*a5847cc3Sjmmv # exit(EXIT_SUCCESS) 70*a5847cc3Sjmmv li %r0, 1 # r0: exit(2) syscall number. 71*a5847cc3Sjmmv li %r3, 0 # r3: first argument. 72*a5847cc3Sjmmv sc 73*a5847cc3Sjmmv 74*a5847cc3Sjmmv .size _start, . - _start 75