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Diffstat (limited to 'i386/include/mach/proc_ops.h')
-rw-r--r-- | i386/include/mach/proc_ops.h | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/i386/include/mach/proc_ops.h b/i386/include/mach/proc_ops.h deleted file mode 100644 index 7c379cf..0000000 --- a/i386/include/mach/proc_ops.h +++ /dev/null @@ -1,40 +0,0 @@ -/* - * Copyright (c) 1994 The University of Utah and - * the Center for Software Science (CSS). 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. - * - * 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. - * - * Author: Bryan Ford, University of Utah CSS - */ -#ifndef _MACH_I386_PROC_OPS_H_ -#define _MACH_I386_PROC_OPS_H_ - -#include <mach/machine/vm_types.h> -#include <mach/inline.h> - -/* Returns the bit number of the most-significant set bit in `val', - e.g. 0 for 1, 1 for 2-3, 2 for 4-7, etc. - If `val' is 0 (i.e. no bits are set), the behavior is undefined. */ -MACH_INLINE int find_msb_set(natural_t val) -{ - int msb; - - asm(" - bsr %0,%0 - " : "=r" (msb) : "0" (val)); - - return msb; -} - -#endif _MACH_I386_PROC_OPS_H_ |