58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/* -*- asm -*- -----------------------------------------------------------
|
|
*
|
|
* Copyright 2009-2014 Intel Corporation; author: H. Peter Anvin
|
|
*
|
|
* 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.
|
|
*
|
|
* ----------------------------------------------------------------------- */
|
|
|
|
/*
|
|
* adjust.h
|
|
*
|
|
* Macros to adjust the drive number
|
|
*/
|
|
|
|
#ifndef ADJUST_H
|
|
#define ADJUST_H
|
|
|
|
#ifdef CTRL_80
|
|
.macro ADJUST_DRIVE
|
|
pusha
|
|
movb $0x02, %ah
|
|
int $0x16
|
|
testb $0x04, %al
|
|
popa
|
|
jz 1f
|
|
movb $0x80, %dl
|
|
1:
|
|
.endm
|
|
#elif defined(FORCE_80)
|
|
.macro ADJUST_DRIVE
|
|
movb $0x80, %dl
|
|
.endm
|
|
#else
|
|
.macro ADJUST_DRIVE
|
|
.endm
|
|
#endif
|
|
|
|
#endif /* ADJUST_H */
|