64 lines
1.9 KiB
Plaintext
64 lines
1.9 KiB
Plaintext
|
### GNU Mes --- Maxwell Equations of Software
|
||
|
|
### Copyright © 2017,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
|
||
|
|
###
|
||
|
|
### This file is part of GNU Mes.
|
||
|
|
###
|
||
|
|
### GNU Mes is free software; you can redistribute it and/or modify it
|
||
|
|
### under the terms of the GNU General Public License as published by
|
||
|
|
### the Free Software Foundation; either version 3 of the License, or (at
|
||
|
|
### your option) any later version.
|
||
|
|
###
|
||
|
|
### GNU Mes is distributed in the hope that it will be useful, but
|
||
|
|
### WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
### GNU General Public License for more details.
|
||
|
|
###
|
||
|
|
### You should have received a copy of the GNU General Public License
|
||
|
|
### along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
|
||
|
|
### Commentary:
|
||
|
|
|
||
|
|
# elf32-body-hello-mes.hex2: `Hello, GNU Mes!' for i686-linux written in
|
||
|
|
# hex2 assembly, for usage with generic elf32-header.hex2 and
|
||
|
|
# elf32-footer-single-main.hex.
|
||
|
|
|
||
|
|
# This ELF binary contains a symbol table which means that objdump and
|
||
|
|
# gdb can be used to inspect and debug.
|
||
|
|
|
||
|
|
### Code:
|
||
|
|
|
||
|
|
# @200
|
||
|
|
:ELF_text
|
||
|
|
:_start
|
||
|
|
e8 %main # call +11 <main>
|
||
|
|
00 00 00
|
||
|
|
00 00 00 00
|
||
|
|
00 00 00 00
|
||
|
|
|
||
|
|
# @210
|
||
|
|
:main
|
||
|
|
# print <hello>
|
||
|
|
b8 04 00 00 00 # mov $4, %eax
|
||
|
|
bb 00 00 00 00 # mov $1, %ebx
|
||
|
|
b9 &hello # mov $hello,%ecx
|
||
|
|
ba %bye>hello # mov $(bye-hello),%edx
|
||
|
|
cd 80 # int $0x80
|
||
|
|
|
||
|
|
# exit 0
|
||
|
|
b8 01 00 00 00 # mov $0x1,%eax
|
||
|
|
bb 00 00 00 00 # mov $0,%ebx
|
||
|
|
cd 80 # int $0x80
|
||
|
|
f4 # hlt
|
||
|
|
|
||
|
|
00 00 00 00 00 00 00 00 00 00 # align to @240
|
||
|
|
00 00 00
|
||
|
|
|
||
|
|
# @240
|
||
|
|
:ELF_data
|
||
|
|
:hello
|
||
|
|
48 65 6c 6c 6f 2c 20 47 # Hello, G
|
||
|
|
4e 55 20 4d 65 73 21 0a # NU Mes!\n
|
||
|
|
|
||
|
|
:bye
|
||
|
|
00
|