diff options
Diffstat (limited to 'i386/pc/i16/i16_a20.h')
| -rw-r--r-- | i386/pc/i16/i16_a20.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/i386/pc/i16/i16_a20.h b/i386/pc/i16/i16_a20.h new file mode 100644 index 00000000..afe124b9 --- /dev/null +++ b/i386/pc/i16/i16_a20.h @@ -0,0 +1,32 @@ +/* + * Copyright (c) 1995-1994 The University of Utah and + * the Computer Systems Laboratory at the University of Utah (CSL). + * All rights reserved. + * + * Permission to use, copy, modify and distribute this software is hereby + * granted provided that (1) source code retains these copyright, permission, + * and disclaimer notices, and (2) redistributions including binaries + * reproduce the notices in supporting documentation, and (3) all advertising + * materials mentioning features or use of this software display the following + * acknowledgement: ``This product includes software developed by the + * Computer Systems Laboratory at the University of Utah.'' + * + * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS + * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF + * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * CSL requests users of this software to return to csl-dist@cs.utah.edu any + * improvements that they make and grant CSL redistribution rights. + * + * Author: Bryan Ford, University of Utah CSL + */ +#ifndef _I386_PC_A20_H_ +#define _I386_PC_A20_H_ + +/* By default these point to the "raw" routines in pc/a20.c. + They can be revectored to other routines, + e.g. to use a HIMEM driver's facilities. */ +extern void (*i16_enable_a20)(void); +extern void (*i16_disable_a20)(void); + +#endif _I386_PC_A20_H_ |