109 lines
2.2 KiB
C
109 lines
2.2 KiB
C
/* -*-comment-start: "//";comment-end:""-*-
|
|
* Mes --- Maxwell Equations of Software
|
|
* Copyright © 2016,2017 Jan Nieuwenhuizen <janneke@gnu.org>
|
|
*
|
|
* This file is part of Mes.
|
|
*
|
|
* 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.
|
|
*
|
|
* 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 Mes. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
// #if __i386__
|
|
// #define main _start
|
|
// #endif
|
|
|
|
int
|
|
main (int argc, char *argv[])
|
|
{
|
|
#if 0
|
|
|
|
|
|
#if __MESC__
|
|
asm ("mov____$i32,%ebx !42");
|
|
asm ("mov____$i32,%eax !1");
|
|
asm ("int____$0x80");
|
|
#elif __i386__
|
|
asm (".byte 144");
|
|
asm (".byte 144");
|
|
asm (".byte 144");
|
|
#if 1 //MESC_TCC
|
|
asm (".byte 184"); //mov $1,%eax
|
|
asm (".byte 42");
|
|
asm (".byte 0");
|
|
asm (".byte 0");
|
|
asm (".byte 0");
|
|
|
|
asm (".byte 201"); // leave
|
|
asm (".byte 195"); // ret
|
|
|
|
#if 0
|
|
|
|
asm (".byte 187"); // mov $42,%ebx
|
|
asm (".byte 42");
|
|
asm (".byte 0");
|
|
asm (".byte 0");
|
|
asm (".byte 0");
|
|
|
|
asm (".byte 184"); //mov $1,%eax
|
|
asm (".byte 1");
|
|
asm (".byte 0");
|
|
asm (".byte 0");
|
|
asm (".byte 0");
|
|
|
|
asm (".byte 201"); // leave
|
|
asm (".byte 195"); // ret
|
|
|
|
|
|
asm (".byte 205"); //int $0x80
|
|
asm (".byte 128");
|
|
|
|
asm (".byte 137"); //%eax,-0x4(%ebp)
|
|
asm (".byte 69");
|
|
asm (".byte 252");
|
|
|
|
asm (".byte 244"); //hlt
|
|
|
|
// asm (".byte 201");
|
|
// asm (".byte 195");
|
|
#endif
|
|
|
|
#else
|
|
asm ("mov $42,%eax");
|
|
asm ("leave");
|
|
asm ("ret");
|
|
|
|
// asm ("mov $42,%ebx");
|
|
// asm ("mov $1,%eax");
|
|
// asm ("int $128");
|
|
#endif
|
|
|
|
asm (".byte 144");
|
|
asm (".byte 144");
|
|
asm (".byte 144");
|
|
|
|
#elif __x86_64__
|
|
asm (".byte 144");
|
|
asm ("mov $42,%rbx");
|
|
asm ("mov $1,%rax");
|
|
asm ("int $128");
|
|
asm ("hlt");
|
|
#else
|
|
#error "platform not supported"
|
|
#endif
|
|
// not reached
|
|
|
|
#endif
|
|
|
|
return 42;
|
|
}
|