50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
#ident "$Id: idle.c,v 1.1 2005/01/20 18:41:12 hpa Exp $"
|
|
/* ----------------------------------------------------------------------- *
|
|
*
|
|
* Copyright 2005 H. Peter Anvin - All Rights Reserved
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person
|
|
* obtaining a copy of this software and associated documentation
|
|
* files (the "Software"), to deal in the Software without
|
|
* restriction, including without limitation the rights to use,
|
|
* copy, modify, merge, publish, distribute, sublicense, and/or
|
|
* sell copies of the Software, and to permit persons to whom
|
|
* the Software is furnished to do so, subject to the following
|
|
* conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall
|
|
* be included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
|
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
* ----------------------------------------------------------------------- */
|
|
|
|
/*
|
|
* idle.c
|
|
*
|
|
* What to do in a busy loop...
|
|
*/
|
|
|
|
#include <syslinux.h>
|
|
#include <stddef.h>
|
|
#include <com32.h>
|
|
|
|
void syslinux_idle(void)
|
|
{
|
|
static com32sys_t sys_idle = {
|
|
.eax.l = 0x0013,
|
|
};
|
|
|
|
/* This call isn't supported on SYSLINUX < 3.08, but all it does
|
|
is return an error, so we don't care. */
|
|
|
|
__intcall(0x22, &sys_idle, NULL);
|
|
}
|