/* * Mach Operating System * Copyright (c) 1992 Carnegie Mellon University * All Rights Reserved. * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ /* * * HISTORY * $Log: misc.s,v $ * Revision 1.1 1995/10/18 10:54:27 deraadt * Initial revision * * Revision 2.3 93/01/26 18:01:25 danner * Conditionalied "#define ASSEMBLER". * [93/01/25 jfriedl] * * Revision 2.2 92/08/03 17:52:14 jfriedl * created [danner] * */ #ifndef ASSEMBLER #define ASSEMBLER #endif #include LABEL(_ff1) jmp.n r1 ff1 r2, r2 /* * invalidate_pte(pte) * * This function will invalidate specified pte indivisibly * to avoid the write-back of used-bit and/or modify-bit into * that pte. It also returns the pte found in the table. */ LABEL(_invalidate_pte) or r3,r0,r0 xmem r3,r2,0 tb1 0,r0,0 jmp.n r1 or r2,r3,r0