mes/mlibc/mini-libc-mes.c
Jan Nieuwenhuizen 7619190d5c build: compile crt1.c, libc-mesc.c and <input>.c separately.
* mlibc/crt1.c: New file.
* mlibc/libc-mes.c (_start): Remove.
* mlibc/libc-gcc.c (_start): Remove.
* make.scm (LINK.hex2, bin.mescc): Move from guile/guix/make.scm.
* guile/guix/make.scm (LINK.hex2, bin.mescc): Remove.
2017-09-10 16:59:43 +02:00

64 lines
1.3 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/>.
*/
void
exit ()
{
asm ("mov____0x8(%ebp),%ebx !8");
asm ("mov____$i32,%eax SYS_exit");
asm ("int____$0x80");
}
void
write ()
{
asm ("mov____0x8(%ebp),%ebx !8");
asm ("mov____0x8(%ebp),%ecx !12");
asm ("mov____0x8(%ebp),%edx !16");
asm ("mov____$i32,%eax SYS_write");
asm ("int____$0x80");
}
int
strlen (char const* s)
{
int i = 0;
while (s[i]) i++;
return i;
}
int
eputs (char const* s)
{
int i = strlen (s);
write (2, s, i);
return 0;
}
int
puts (char const* s)
{
int i = strlen (s);
write (1, s, i);
return 0;
}