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Annotation of kernel/machdep/ppc/longlong.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
                      3:  *
                      4:  * @APPLE_LICENSE_HEADER_START@
                      5:  * 
                      6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
                      7:  * Reserved.  This file contains Original Code and/or Modifications of
                      8:  * Original Code as defined in and that are subject to the Apple Public
                      9:  * Source License Version 1.1 (the "License").  You may not use this file
                     10:  * except in compliance with the License.  Please obtain a copy of the
                     11:  * License at http://www.apple.com/publicsource and read it before using
                     12:  * this file.
                     13:  * 
                     14:  * The Original Code and all software distributed under the License are
                     15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
                     16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
                     17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
                     18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
                     19:  * License for the specific language governing rights and limitations
                     20:  * under the License.
                     21:  * 
                     22:  * @APPLE_LICENSE_HEADER_END@
                     23:  */
                     24: 
                     25: /*
                     26:  * Routines to optimize some forms of long-long math.
                     27:  *
                     28:  * Copyright (c) 1992-1993 NeXT, Inc.
                     29:  *
                     30:  * HISTORY
                     31:  *
                     32:  *  16Aug93 Mac Gillon at NeXT
                     33:  *     hppa version
                     34:  *  
                     35:  *  23Nov92 Mac Gillon at NeXT
                     36:  *      68K version
                     37:  *
                     38:  *  1Nov92 Brian Pinkerton at NeXT
                     39:  *     Created.
                     40:  */
                     41: 
                     42: static inline void
                     43: llp_div_l(unsigned long long *ll, unsigned int divisor, unsigned int *remain)
                     44: {
                     45: 
                     46:        unsigned long long      copy = *ll;
                     47:        
                     48:        *ll = copy / divisor;
                     49:        *remain = (unsigned int) (copy % divisor);
                     50: 
                     51: }
                     52: 
                     53: 
                     54: static inline unsigned int
                     55: ll_div_l(unsigned long long ll, unsigned int divisor)
                     56: {
                     57:        return (unsigned int) (ll / divisor);
                     58: 
                     59: }

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