/* * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* * @OSF_COPYRIGHT@ */ /* * Copyright (c) 1990, 1991 The University of Utah and * the Center for Software Science at the University of Utah (CSS). * 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 Center * for Software Science at the University of Utah.'' * * THE UNIVERSITY OF UTAH AND CSS ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSS DISCLAIM ANY LIABILITY OF * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * CSS requests users of this software to return to css-dist@cs.utah.edu any * improvements that they make and grant CSS redistribution rights. * * Utah $Hdr: machparam.h 1.7 92/05/22$ */ #ifndef _PPC_MACHPARAM_H_ #define _PPC_MACHPARAM_H_ /* * Machine dependent constants for ppc. * Added as needed (for device drivers). */ #define NBPG 4096 /* bytes/page */ #define PGSHIFT 12 /* LOG2(NBPG) */ #define DEV_BSHIFT 10 /* log2(DEV_BSIZE) */ /* * Disk devices do all IO in 1024-byte blocks. */ #define DEV_BSIZE 1024 #define btop(x) ((x)>>PGSHIFT) #define ptob(x) ((x)<<PGSHIFT) /* Clicks to disk blocks */ #define ctod(x) ((x)<<(PGSHIFT-DEV_BSHIFT)) /* Disk blocks to clicks */ #define dtoc(x) ((x)>>(PGSHIFT-DEV_BSHIFT)) /* clicks to bytes */ #define ctob(x) ((x)<<PGSHIFT) /* bytes to clicks */ #define btoc(x) (((unsigned)(x)+(NBPG-1))>>PGSHIFT) #endif /* _PPC_MACHPARAM_H_ */