71 lines
2.2 KiB
Plaintext
71 lines
2.2 KiB
Plaintext
### GNU Mes --- Maxwell Equations of Software
|
|
### Copyright © 2017,2018,2019 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:
|
|
|
|
# elf64-body-hello-mes.hex2: `Hello, GNU Mes!' for x86_64-linux written
|
|
# in hex2 assembly, for usage with generic elf64-header.hex2 and
|
|
# elf64-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:
|
|
|
|
# @300
|
|
:ELF_text
|
|
:_start
|
|
# exit(42)
|
|
97 02 00 00 # auipc t0,0x0
|
|
83 e2 c2 00 # ld t0,12(t0) # main
|
|
e7 80 02 00 # jalr t0
|
|
&main
|
|
|
|
# @310
|
|
:main
|
|
# print <hello>
|
|
93 08 00 04 # li a7,$0x93 (sys_write)
|
|
13 05 10 00 # li a0,$0x13
|
|
97 05 00 00 # auipc a1,0x0
|
|
83 e5 c5 00 # lwu a1,12(a1) # addr
|
|
6f 00 80 00 # j 10
|
|
&hello
|
|
|
|
17 06 00 00 # auipc a2,0x0
|
|
03 66 c6 00 # lwu a2,12(a2) # addr
|
|
6f 00 80 00 # j 10
|
|
%bye>hello
|
|
|
|
13 06 00 01 # li a2,16
|
|
73 00 00 00 # ecall sys_write
|
|
93 08 d0 05 # li a7,93 (sys_exit)
|
|
13 05 00 00 # li a0,0
|
|
73 00 00 00 # ecall sys_exit
|
|
73 00 50 10 # wfi
|
|
|
|
00 00 00 00 00 00 00 00
|
|
00 00 00 00 00 00 00 00 # align to @360
|
|
|
|
# @360
|
|
: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
|
|
:ELF_end
|